TREX CO INC - Quarter Report: 2015 June (Form 10-Q)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

For the quarterly period ended June 30, 2015

OR

For the transition period from                      to                     

Commission File Number: 001-14649

Trex Company, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (540) 542-6300

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.:

Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Exchange Act):    Yes  ¨    No  x

The number of shares of the registrant’s common stock, par value $.01 per share, outstanding at July 23, 2015 was 32,051,754 shares.

TREX COMPANY, INC.

INDEX

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PART I

FINANCIAL INFORMATION

TREX COMPANY, INC.

Condensed Consolidated Balance Sheets

(In thousands)

See Accompanying Notes to Condensed Consolidated

Financial Statements (Unaudited).

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TREX COMPANY, INC.

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

(In thousands, except share and per share data)

See Accompanying Notes to Condensed Consolidated

Financial Statements (Unaudited).

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TREX COMPANY, INC.

Condensed Consolidated Statements of Cash Flows

(Unaudited)

(In thousands)

See Accompanying Notes to Condensed Consolidated

Financial Statements (Unaudited).

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TREX COMPANY, INC.

Notes to Condensed Consolidated Financial Statements

For the Six Months Ended June 30, 2015 and 2014

(Unaudited)

Trex Company, Inc. (the “Company”) is the world’s largest manufacturer of wood-alternative decking and railing products, which are marketed under the brand name Trex^®. The Company is incorporated in Delaware. The principal executive offices are located at 160 Exeter Drive, Winchester, Virginia 22603, and the telephone number at that address is (540) 542-6300. The Company operates in one business segment.

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information and the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, the accompanying condensed consolidated financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments except as otherwise described herein) considered necessary for a fair presentation have been included in the accompanying condensed consolidated financial statements. The consolidated results of operations for the six months ended June 30, 2015 are not necessarily indicative of the results that may be expected for the full fiscal year. These condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements as of December 31, 2014 and 2013 and for each of the three years in the period ended December 31, 2014 included in the Annual Report of Trex Company, Inc. on Form 10-K, as filed with the U.S. Securities and Exchange Commission.

The Company’s critical accounting policies are included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update 2014-09, “Revenue from Contracts with Customers.” The new standard provides a single, comprehensive model for revenue arising from contracts with customers and supersedes most current revenue recognition guidance. The new standard requires an entity to recognize revenue at an amount that reflects the consideration to which the company expects to be entitled in exchange for transferring goods or services to a customer. On July 9, 2015, the FASB voted to approve a one-year deferral of the effective date of the standard and expects to issue its final Accounting Standards Update formally amending the effective date by the end of the third quarter of 2015. The deferral results in the new revenue standard being effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2017. The Company is currently assessing the impact of the adoption of this new standard on its consolidated financial statements and footnote disclosures and has not yet selected a method of adoption.

On April 7, 2015, the FASB issued Accounting Standards Update 2015-03, “Simplifying the Presentation of Debt Issuance Costs,” which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability. Debt issuance costs are specific incremental costs, other than those paid to the lender, that are directly attributable to issuing a debt instrument. The effective date of the new standard is for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. The Company is assessing the impact of this new standard but does not believe it will have a material impact on its consolidated financial statements and footnote disclosures.

Inventories, at LIFO (last-in, first-out) value, consist of the following (in thousands):

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The Company utilizes the last-in, first-out (“LIFO”) method of accounting for inventory, which generally provides matching of current costs with current revenues. However, under the LIFO method, reductions in annual inventory balances cause a portion of the Company’s cost of sales to be based on historical costs rather than current year costs (“LIFO liquidation”). Reductions in interim inventory balances expected to be replenished by year-end do not result in a LIFO liquidation. Accordingly, interim LIFO calculations are based, in part, on management’s estimates of expected year-end inventory levels and costs which may differ from actual results. There were no LIFO inventory liquidations or related impact on cost of sales in the six months ended June 30, 2015 or 2014.

Accrued expenses consist of the following (in thousands):

The Company’s outstanding debt consists of a revolving credit facility.

Revolving Credit Facility

The Company currently has a Second Amended Credit Agreement that provides the Company with one or more revolving loans in a collective maximum principal amount of $150 million from January 1 through June 30 of each year, reducing to a maximum principal amount of $100 million from July 1 through December 31 of each year throughout the term, which ends November 20, 2019.

The Company had $37.5 million of outstanding borrowings under its revolving credit facility and remaining available borrowing capacity of approximately $112.5 million at June 30, 2015.

Compliance with Debt Covenants and Restrictions

The Company’s ability to make scheduled principal and interest payments, borrow and repay amounts under any outstanding revolving credit facility and continue to comply with any loan covenants depends primarily on the Company’s ability to generate sufficient cash flow from operations.

As of June 30, 2015, the Company was in compliance with all of the covenants contained in its debt agreements. Failure to comply with the loan covenants might cause lenders to accelerate the repayment obligations under the credit facility, which may be declared payable immediately based on a default.

The Company considers the recorded value of its financial assets and liabilities, consisting primarily of cash and cash equivalents, accounts receivable, accounts payable, accrued expenses and other current liabilities to approximate the fair value of the respective assets and liabilities at June 30, 2015 and December 31, 2014.

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Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share (in thousands, except share and per share data):

Diluted earnings per share is computed using the weighted average number of shares determined for the basic earnings per share computation plus the dilutive effect of common stock equivalents using the treasury stock method. The computation of diluted earnings per share excludes the following potentially dilutive securities because the effect would be anti-dilutive:

Stock Repurchase Programs

On October 23, 2014, the Company’s Board of Directors authorized a common stock repurchase program of up to two million shares of the Company’s outstanding common stock (the “October 2014 Stock Repurchase Program”). This authorization has no expiration date. As of June 30, 2015, the Company has made no repurchases under the October 2014 Stock Repurchase Program.

The Company has one stock-based compensation plan, the 2014 Stock Incentive Plan (the “Plan”), approved by the Company’s stockholders in April 2014. The Plan amended and restated in its entirety the Trex Company, Inc. 2005 Stock Incentive Plan. The Plan is administered by the Compensation Committee of the Company’s Board of Directors. Stock-based compensation is granted to officers, directors and certain key employees in accordance with the provisions of the Plan. The Plan provides for grants of stock options, restricted stock, restricted stock units, stock appreciation rights (“SARs”), and unrestricted stock. As of June 30, 2015, the total aggregate number of shares of the Company’s common stock that may be issued under the Plan is 6,420,000.

In 2014, the Company began granting performance-based restricted stock in addition to the time-based restricted stock it previously granted. The performance-based restricted shares have a three-year vesting period, vesting one-third each year based on target earnings before interest, taxes, depreciation and amortization, or “EBITDA”, for 1 year, cumulative 2 years and cumulative 3 years, respectively. With respect to each vesting, the number of shares that will vest will be between 0% and 200% of the target number of shares.

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The fair value of each SAR is estimated on the date of grant using a Black-Scholes option-pricing formula. For SARs issued in the six months ended June 30, 2015 and 2014, respectively, the assumptions shown in the following table were used:

The following table summarizes the Company’s stock-based compensation grants for the six months ended June 30, 2015:

The Company recognizes stock-based compensation expense ratably over the period from the grant date to the earlier of: (1) the vesting date of the award, or (2) the date the grantee is eligible to retire without forfeiting the award. For performance-based restricted stock, expense is recognized ratably over the performance and vesting period of each tranche based on management’s judgment of the ultimate award that is likely to be paid out based on the achievement of the predetermined performance measures. The following table summarizes the Company’s stock-based compensation expense for the three and six months ended June 30, 2015 and 2014 (in thousands):

Total unrecognized compensation cost related to unvested awards as of June 30, 2015 was $3.8 million. The cost of these unvested awards is being recognized over the requisite vesting period of each award.

The Company’s effective tax rate for the six months ended June 30, 2015 and 2014 was 36.8% and 37.6% respectively, which resulted in expense of $21.1 million and $16.5 million, respectively.

The Company analyzes its deferred tax assets in each reporting period, considering all available positive and negative evidence, in determining the expected realization of those deferred tax assets. As of June 30, 2015, the Company maintains a valuation allowance of $4.5 million against deferred tax assets related to state tax credits it estimates will expire before they are realized.

During the six months ended June 30, 2015, the Company realized $1.8 million of excess tax benefits from stock-based awards and, accordingly, recorded an increase to additional paid-in capital.

The Company operates in multiple tax jurisdictions and, in the normal course of business, its tax returns are subject to examination by various taxing authorities. Such examinations may result in future assessments by these taxing authorities, and the Company accrues a liability when it believes that it is more likely than not that benefits of tax positions will not be realized. The Company believes that adequate provisions have been made for all tax returns subject to examination. As of June 30, 2015, federal tax years 2011 through 2014 remain subject to examination. Sales made to foreign distributors are not taxable in any foreign jurisdictions as the Company does not have a taxable presence in any foreign jurisdiction.

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The Company’s operating results have historically varied from quarter to quarter, often attributable to seasonal trends in the demand for Trex products. The Company has historically experienced lower net sales during the fourth quarter because holidays and adverse weather conditions in certain regions reduce the level of home improvement and construction activity.

Contract Termination Costs

In anticipation of relocating its corporate headquarters, the Company entered into a lease agreement in 2005. The Company reconsidered and decided not to move its headquarters. The lease obligates the Company to lease 55,047 square feet of office space through June 30, 2019. As of June 30, 2015, the Company has executed subleases for 24,732 square feet of the leased space and is currently marketing the remaining portion of the space to find suitable tenants. The Company estimates that the present value of the estimated future sublease receipts, net of transaction costs, will be less than the remaining minimum lease payment obligations under its lease and has recorded a liability for the expected shortfall. During the six months ended June 30, 2015 and June 30, 2014, the Company recorded charges of $0.2 million and $0.7 million, respectively, to selling, general and administrative expenses due to changes in its estimate of future sublease receipts.

To estimate future sublease receipts, the Company has assumed that existing subleases will be renewed or new subleases will be executed at rates consistent with rental rates in the current subleases or estimated market rates and that existing vacancies will be filled within one year. However, management cannot be certain that the timing of future subleases or the rental rates contained in future subleases will not differ from current estimates. Factors such as the availability of commercial office space, market conditions and subtenant preferences will influence the terms achieved in future subleases. The inability to sublet the office space in the future or unfavorable changes to key assumptions used in the estimate of the future sublease receipts may result in material charges to selling, general and administrative expenses in future periods.

As of June 30, 2015, the minimum payments remaining under the Company’s lease relating to its reconsidered corporate relocation over the years ending December 31, 2015, 2016, 2017, 2018 and 2019 are $0.9 million, $1.9 million, $1.9 million, $2.0 million and $1.1 million, respectively. The minimum receipts remaining under the Company’s existing subleases over the years ending December 31, 2015, 2016, 2017, 2018 and 2019 are $0.3 million, $0.5 million, $0.5 million, $0.5 million and $0.4 million, respectively.

The following table provides information about the Company’s liability related to the lease (in thousands):

Product Warranty

The Company warrants that its products will be free from material defects in workmanship and materials. This warranty generally extends for a period of 25 years for residential use and 10 years for commercial use. With respect to TrexTrim™ and Trex Reveal^® Railing, the warranty period is 25 years for both residential and commercial use. With respect to the Company’s Transcend^®, Enhance^®, Select^® and Universal Fascia product, the Company further warrants that the product will not fade in color more than a certain amount and will be resistant to permanent staining from food substances or mold (provided the stain is cleaned within seven days of appearance). This warranty extends for a period of 25 years for residential use and 10 years for commercial use. If there is a breach of such warranties, the Company has an obligation either to replace the defective product or refund the purchase price.

Historically, the Company has not had material numbers of claims submitted or settled under the provisions of its product warranties, with the exception of claims related to material produced at its Nevada facility prior to 2007 that exhibits surface flaking. The Company continues to receive and settle surface flaking claims and maintains a warranty reserve to provide for the settlement of these claims. Estimating the warranty reserve for surface flaking claims requires management to estimate (1) the number of claims to be settled with payment and (2) the average cost to settle each claim, both of which are subject to variables that are difficult to estimate.

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To estimate the number of claims to be settled with payment, the Company utilizes actuarial techniques to quantify both the expected number of claims to be received and the percentage of those claims that will ultimately require payment. Estimates for both of these elements (number and percentage of claims that will ultimately require payment) are quantified using a range of assumptions derived from claim count history and the identification of factors influencing the claim counts, including the downward trend in received claims due to the passage of time since production of the suspect material. For each of the various parameters used in the analysis, the assumed values in the actuarial valuation produce results that represent the Company’s best estimate for the ultimate number of claims to be settled with payment. The cost per claim varies due to a number of factors, including the size of affected decks, the type of replacement material used, the cost of production of replacement material and the method of claim settlement.

The Company monitors surface flaking claims activity each quarter for indications that its estimates require revision. Typically, a majority of surface flaking claims received in a fiscal year are received during the summer outdoor season, which spans the second and third fiscal quarters. It has been the Company’s practice to utilize the actuarial techniques discussed above during the third quarter, after a significant portion of all claims has been received for the fiscal year and variances to annual claims expectations are more meaningful. Through the second quarter of 2015, the average cost per claim was slightly higher than expectations. The number of claims received during the first six months of 2015 was much higher than expectations and slightly higher than the claims received in the first six months of 2014. However, the Company resolved slightly fewer claims than expected during the period and settlements during the first six months of 2015 were significantly lower than settlements during the first six months of 2014. The Company believes that its reserve at June 30, 2015 is sufficient to cover future surface flaking obligations.

The Company’s analysis is based on currently known facts and a number of assumptions. Projecting future events such as the number of claims to be received, the number of claims that will require payment and the average cost of claims could cause the actual warranty liabilities to be higher or lower than those projected which could materially affect the Company’s financial condition, results of operations or cash flows. The Company estimates that the annual number of claims received will continue to decline over time and that the average cost per claim will remain relatively stable. If the level of claims received or average cost per claim differs materially from expectations, it could result in additional increases to the warranty reserve and reduced earnings and cash flows in future periods. The Company estimates that a 10% change in the expected number of remaining claims to be settled with payment or the expected cost to settle claims may result in approximately a $2.8 million change in the surface flaking warranty reserve.

The following is a reconciliation of the Company’s surface flaking warranty reserve (in thousands):

The remainder of the Company’s warranty reserve represents amounts accrued for non-surface flaking claims.

Legal Matters

The Company has lawsuits, as well as other claims, pending against it which are ordinary routine litigation and claims incidental to the business. Management has evaluated the merits of these lawsuits and claims, and believes that their ultimate resolution will not have a material effect on the Company’s consolidated financial condition, results of operations, liquidity or competitive position.

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The following management discussion should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2014 filed with the U.S. Securities and Exchange Commission and the condensed consolidated financial statements and the footnotes thereto included in Part I, Item 1. “Financial Statements” of this quarterly report.

NOTE ON FORWARD-LOOKING STATEMENTS

This management’s discussion and analysis contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. All statements regarding our expected financial position and operating results, our business strategy, our financing plans, forecasted demographic and economic trends relating to our industry and similar matters are forward-looking statements. These statements can sometimes be identified by our use of forward-looking words such as “may,” “will,” “anticipate,” “estimate,” “expect,” “intend” or similar expressions. We cannot promise you that our expectations in such forward-looking statements will turn out to be correct. Our actual results could be materially different from our expectations because of various factors, including the factors discussed under “Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2014 filed with the U.S. Securities and Exchange Commission. These statements are also subject to risks and uncertainties that could cause the Company’s actual operating results to differ materially. Such risks and uncertainties include, but are not limited to, the extent of market acceptance of the Company’s products; the costs associated with the development and launch of new products and the market acceptance of such new products; the sensitivity of the Company’s business to general economic conditions; the impact of seasonal and weather-related demand fluctuations on inventory levels in the distribution channel and sales of the Company’s products; the availability and cost of third-party transportation services for the Company’s products; the Company’s ability to obtain raw materials at acceptable prices; the Company’s ability to maintain product quality and product performance at an acceptable cost; the level of expenses associated with product replacement and consumer relations expenses related to product quality; and the highly competitive markets in which the Company operates.

OVERVIEW

General. Trex Company, Inc. is the world’s largest manufacturer of wood-alternative decking and railing products, which are marketed under the brand name Trex ^®. We offer a comprehensive set of aesthetically durable, low maintenance product offerings and believe that the range and variety of our product offerings allow consumers to design much of their outdoor living space using Trex brand products.

We offer the following products:

In addition, we offer Trex Hideaway^®, which is a hidden fastening system for specially grooved boards.

Highlights related to the second quarter of 2015 include:

Net Sales. Net sales consist of sales and freight, net of returns and discounts. The level of net sales is principally affected by sales volume and the prices paid for Trex products. Our branding and product differentiation strategy enables us to command premium prices over wood products. Our operating results have historically varied from quarter to quarter, often due to seasonal trends in the demand for Trex. We have historically experienced lower net sales during the fourth quarter because holidays and adverse weather conditions in certain regions reduce the level of home improvement and construction activity.

Sales Incentives / Early Buy Program: As part of our normal business practice and consistent with industry practices, we have historically provided our distributors and dealers incentives to build inventory levels before the start of the

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prime deck-building season to ensure adequate availability of product to meet anticipated seasonal consumer demand and to enable production planning. These incentives, which together we reference as our “early buy program,” include payment discounts and favorable payment terms. In addition, from time to time we may offer price discounts or volume rebates on specified products and other incentives based on increases in purchases as part of specific promotional programs.

We launched our early buy program for the 2015 decking season in December 2014. The timing and terms of the 2015 program were generally consistent with the timing and terms of the 2014 program launched in December 2013. To qualify for early buy program incentives, customers must commit to the terms of the program which specify eligible products and quantities, order deadlines and available terms, discounts and rebates. There are no product return rights granted to our distributors except those granted pursuant to the warranty provisions of our agreements with distributors. In addition, our products are not susceptible to rapid changes in technology that may cause them to become obsolete. The early buy program can have a significant impact on our sales, receivables and inventory levels. Refer to the liquidity and capital resources section for further discussion of significant impacts on our receivables and inventory levels.

Gross Profit. Gross profit represents the difference between net sales and cost of sales. Cost of sales consists of raw materials costs, direct labor costs, manufacturing costs and freight. Raw materials costs generally include the costs to purchase and transport waste wood fiber, reclaimed polyethylene and pigmentation for coloring Trex products. Direct labor costs include wages and benefits of personnel engaged in the manufacturing process. Manufacturing costs consist of costs of depreciation, utilities, maintenance supplies and repairs, indirect labor, including wages and benefits, and warehouse and equipment rental activities.

Product Warranty. We continue to receive and settle claims related to material produced at our Nevada facility prior to 2007 that exhibits surface flaking and maintain a warranty reserve to provide for the settlement of these claims. We monitor surface flaking claims activity each quarter for indications that our estimates require revision. Typically, a majority of surface flaking claims received in a fiscal year are received during the summer outdoor season, which spans the second and third fiscal quarters. It has been our practice to utilize the actuarial techniques discussed above during the third quarter, after a significant portion of all claims has been received for the fiscal year and variances to annual claims expectations are more meaningful. Through the second quarter of 2015, the average cost per claim was slightly higher than expectations. The number of claims received during the first six months of 2015 was much higher than expectations and slightly higher than the claims received in the first six months of 2014. However, we resolved slightly fewer claims than expected during the period and settlements during the first six months of 2015 were significantly lower than settlements during the first six months of 2014. We believe that our reserve at June 30, 2015 is sufficient to cover future surface flaking obligations.

The following table details surface flaking claims activity related to our warranty:

Selling, General and Administrative Expenses. The largest component of selling, general and administrative expenses is personnel related costs, which include salaries, commissions, incentive compensation, and benefits of personnel engaged in sales and marketing, accounting, information technology, corporate operations, research and development, and other business functions. Another component of selling, general and administrative expenses is branding and other sales and marketing costs, which are used to build brand awareness of Trex. These costs consist primarily of advertising, merchandising, and other promotional costs. Other general and administrative expenses include professional fees, office occupancy costs attributable to the business functions previously referenced, and consumer relations expenses. As a percentage of net sales, selling, general and administrative expenses have varied from quarter to quarter due, in part, to the seasonality of our business.

RESULTS OF OPERATIONS

Below we have included a discussion of our operating results and material changes in our operating results for the three months ended June 30, 2015 (the “2015 quarter”) compared to the three months ended June 30, 2014 (the “2014 quarter”) and for the six months ended June 30, 2015 (the “2015 six-month period”) compared to the six months ended June 30, 2014 (the “2014 six-month period”).

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Three Months Ended June 30, 2015 Compared With Three Months Ended June 30, 2014

Net Sales

The 12.8% increase in net sales in the 2015 quarter compared to the 2014 quarter was due to an 8.3% increase in sales volume and a 4.1% increase in the average price per unit. We attribute the increase in sales volume to market share gains and an increase in demand for wood-alternative products. The increase in average price per unit in the 2015 quarter was a result of price increases on some of our 2015 decking products and a mix shift to higher-priced products.

Gross Profit

Gross profit as a percentage of net sales, gross margin, increased 130 basis points to 38.4% in the 2015 quarter from 37.1% in the 2014 quarter. The increase in gross margin was primarily the result of cost reduction initiatives and the impact of price increases.

Selling, General and Administrative Expenses

The increase in selling, general and administrative expenses in the 2015 quarter compared to the 2014 quarter was attributable to a $2.1 million increase in personnel-related expenses primarily related to incentive compensation. As a percentage of net sales, total selling, general and administrative expenses decreased to 16.4% in the 2015 quarter from 16.8% in the 2014 quarter.

Interest Expense

The decrease in interest expense during the 2015 quarter compared to the 2014 quarter was due to lower interest rates and lower average debt levels under the revolving credit facility. As a percentage of net sales, interest expense decreased to 0.1% in the 2015 quarter from 0.2% in the 2014 quarter.

Provision for Income Taxes

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The effective tax rate of 37.3% for the 2015 quarter remained relatively constant compared to the effective tax rate for the 2014 quarter of 37.6%.

Six Months Ended June 30, 2015 Compared With Six Months Ended June 30, 2014

Net Sales

The increase in net sales in the 2015 six-month period compared to the 2014 six-month period was due to an 11.8% increase in sales volume and a 3.8% increase in the average price per unit. We attribute the increase in sales volume to market share gains and an increase in demand for wood-alternative products. The increase in average price per unit in the 2015 six-month period was a result of price increases on some of our 2015 decking products and a mix shift to higher-priced products.

Gross Profit

Gross profit as a percentage of net sales, gross margin, increased 160 basis points to 39.1% in the 2015 six-month period from 37.5% in the 2014 six-month period. The increase in gross margin was primarily the result of cost reduction initiatives and the impact of price increases.

Selling, General and Administrative Expenses

The increase in selling, general and administrative expenses in the 2015 six-month period compared to the 2014 six-month period was attributable to a $3.9 million increase in personnel-related expenses primarily due to incentive compensation and $2.1 million higher branding spend due to the launch of our new marketing campaign in the 2015 six-month period. These increases were partially offset by $0.4 million lower contract termination costs and other general cost reductions. As a percentage of net sales, total selling, general and administrative expenses decreased to 16.7% in the 2015 six-month period from 17.4% in the 2014 six-month period.

Interest Expense, net

The decrease in interest expense was due to lower interest rates under the revolving credit facility during the 2015 six-month period compared to the 2014 six-month period. As a percentage of net sales, interest expense decreased to 0.1% in the 2015 six-month period from 0.3% in 2014 six-month period.

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Provision for Income Taxes

The effective tax rate declined to 36.8% from 37.6% during the 2015 six-month period compared to the 2014 six-month period resulting from the apportionment of state taxes.

LIQUIDITY AND CAPITAL RESOURCES

We finance operations and growth primarily with cash flow from operations, borrowings under our revolving credit facility, operating leases and normal trade credit terms from operating activities.

At June 30, 2015, we had $4.1 million of cash and cash equivalents.

Sources and Uses of Cash. The following table summarizes our cash flows from operating, investing and financing activities for the six months ended June 30, 2015 and 2014 (in thousands):

Operating Activities

Net cash provided by operating activities decreased $39.4 million in the 2015 six-month period compared to the 2014 six-month period. The decrease was primarily due to an increase in accounts receivable of $65.3 million due to the increase in net sales and the timing of customer payments for the 2015 six-month period. The Company experienced the highest net sales of its history during the 2015 quarter, which resulted in an increased accounts receivable balance at June 30, 2015. We expect to collect substantially all outstanding accounts receivable balances during the next quarter.

Investing Activities

Net cash used in investing activities increased $9.2 million in the 2015 six-month period compared to the 2014 six-month period due to increased capital expenditures. Capital expenditures in the 2015 six-month period totaled $14.1 million to support cost reduction initiatives, equipment purchases related to our specialty materials operation and the purchase of land adjacent to our Winchester, VA facility to support potential future expansion. Capital expenditures in the 2014 six-month period were $4.9 million.

Financing Activities

Net cash provided by financing activities increased $41.4 million in the 2015 six-month period compared to the 2014 six-month period primarily due to the 2014 $50.0 million common stock share repurchases. Borrowings during the 2015 and 2014 six-month periods were used to support our seasonal working capital needs and are generally substantially repaid during the subsequent quarter as accounts receivable balances are collected.

Stock Repurchase Programs. On October 23, 2014, our Board of Directors authorized a common stock repurchase program of up to two million shares of our outstanding common stock (the “Stock Repurchase Program”). This authorization has no expiration date. As of June 30, 2015, no repurchases have been made under the Stock Repurchase Program.

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Capital Requirements. Capital expenditures in the 2015 six-month period totaled $14.1 million to support cost reduction initiatives, equipment purchases related to our specialty materials operation and the purchase of land adjacent to our Winchester, VA facility to support potential future expansion. We currently estimate that our capital expenditures in 2015 will be approximately $25 million.

Indebtedness. Our indebtedness consists of a revolving credit facility. At June 30, 2015, our indebtedness totaled $37.5 million, and the interest rate on our revolving credit facility was 1.3%.

We currently have a Second Amended Credit Agreement that provides us with revolving loan capacity in a collective maximum principal amount of $150 million from January 1 through June 30 of each year, reducing to a maximum principal amount of $100 million from July 1 through December 31 of each year throughout the term, which ends November 20, 2019.

We had $37.5 million of outstanding borrowings under the revolving credit facility and remaining available borrowing capacity of approximately $112.5 million at June 30, 2015 and $62.5 million of remaining available borrowing capacity beginning July 1, 2015.

Debt Covenants. To remain in compliance with covenants contained within our debt agreements, we must maintain specified financial ratios based on levels of debt, fixed charges, and earnings (excluding extraordinary gains and extraordinary non-cash losses) before interest, taxes, depreciation and amortization. At June 30, 2015, we were in compliance with these covenants. Failure to comply with our loan covenants might cause our lenders to accelerate our repayment obligations under our credit facility, which may be declared payable immediately based on a default.

We believe that cash on hand, cash from operations and borrowings expected to be available under our revolving credit facility will provide sufficient funds to fund planned capital expenditures, make scheduled principal and interest payments, fund warranty payments and meet other cash requirements. We currently expect to fund future capital expenditures from operations and financing activities. The actual amount and timing of future capital requirements may differ materially from our estimate depending on the demand for Trex products and new market developments and opportunities.

Inventory in Distribution Channels. We sell our products through a tiered distribution system. We have approximately 20 distributors and two mass merchandisers to which we sell our products. The distributors in turn sell the products to approximately 6,700 dealers and retail locations who in turn sell the products to end users. While we do not typically receive information regarding inventory in the distribution channel from dealers, we occasionally receive limited information from some but not all of our distributors regarding their inventory. Because few distributors provide us with any information regarding their inventory, we cannot definitively determine the level of inventory in the distribution channels at any time. We believe that distributor inventory levels as of June 30, 2015 are comparable to distributor inventory levels as of June 30, 2014. Significant increases in inventory levels in the distribution channel without a corresponding change in end-use demand could have an adverse effect on future sales.

Product Warranty. We continue to receive and settle claims related to material produced at our Nevada facility prior to 2007 that exhibits surface flaking, which has had a material adverse effect on cash flow from operations. Although the number of claims received increased in the 2015 six-month period as compared to the 2014 six-month period, we estimate that the annual number of claims received will continue to decline over time and that the average cost per claim will remain relatively stable. If the level of claims received or average cost per claim differs materially from our expectations, it could result in additional increases to the warranty reserve and reduced earnings and cash flow in future periods.

For information regarding our exposure to certain market risks, see “Quantitative and Qualitative Disclosures about Market Risk,” in Part II, Item 7A of the Company’s 10-K for the year ended December 31, 2014. There were no material changes to the Company’s market risk exposure during the six months ended June 30, 2015.

The Company’s management, with the participation of its Chief Executive Officer, who is the Company’s principal executive officer, and its Senior Vice President and Chief Financial Officer, who is the Company’s principal financial officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures as of June 30, 2015. Based on this evaluation, the Chief Executive Officer and the Chief Financial Officer have concluded that the Company’s disclosure controls and procedures are effective. In addition, there have been no changes in the Company’s internal control over financial reporting during the quarter ended June 30, 2015 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II

OTHER INFORMATION

The Company has lawsuits, as well as other claims, pending against it which are ordinary routine litigation and claims incidental to the business. Management has evaluated the merits of these lawsuits and claims, and believes that their ultimate resolution will not have a material effect on the Company’s consolidated financial condition, results of operations, liquidity or competitive position.

Amendment of Amended and Restated 1999 Incentive Plan for Outside Directors and Adoption of Forms of Restricted Stock Unit Agreements

Effective August 1, 2015, the Board of Directors approved an amendment to the Amended and Restated 1999 Incentive Plan for Outside Directors (the “Outside Directors’ Plan”) to allow the Nominating and Corporate Governance Committee the option of granting restricted stock units. As a result of the amendment, the Nominating and Corporate Governance Committee will now have the ability to grant equity to outside directors in the form of options, stock appreciation rights, restricted stock, restricted stock units or any combination thereof.

The foregoing description of the changes to the Outside Directors’ Plan is qualified in its entirety by reference to the full text of the Outside Directors’ Plan, which is filed as Exhibit 10.1 to this Quarterly Report on Form 10-Q. Attached as Exhibit 10.2 is the form of 2014 Stock Incentive Plan Restricted Stock Unit Agreement (Time-based Vesting) for outside directors. Also attached as Exhibits 10.3 and 10.4 are a form of 2014 Stock Incentive Plan Restricted Stock Unit Agreement (Time-based Vesting) for employees and a form of 2014 Stock Incentive Plan Restricted Stock Unit Agreement (Performance-based Vesting) for employees, respectively.

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The Company files herewith the following exhibits:

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

EXHIBIT INDEX