• Net sales for the first quarter ending March 31, 2019 were $1.6 billion, a 4.1 percent decrease compared to a year ago. Lumber and lumber sheet goods sales were down 19.6 percent primarily as a result of the deflation in commodity prices as compared to the same period a year ago. We achieved increased sales in our remaining core product categories largely due to higher sales volume.
• Net sales per day declined by 2.5 percent primarily due to commodity deflation, which depressed sales by 9.3 percent. However, including the impact of commodity deflation, value-added product sales per day grew by 8.8 percent, including sales growth of 8.1 percent in the Windows, Doors, and Millwork category and 9.6 percent in Manufactured Products.
• Estimated sales volume per day grew by 6.8 percent as demand grew across our three customer end markets. Single-family grew by 7.5 percent, repair and remodel / other by 5.2 percent and multi-family by 4.1 percent.

• Gross margin was $442.0 million, an increase of $30.9 million, or 7.5 percent, over the prior year. Gross margin percentage was 27.1 percent, an expansion of approximately 290 basis points compared to the prior year period. The margin percentage increase was attributable to the decline in the cost of commodities relative to our customer pricing commitments as well as continued pricing discipline. Additionally, growth in the value-added product categories resulted in an improved mix versus the prior year period.
• Rapid commodity inflation or deflation can cause short-term gross margin percentage fluctuations, whereas higher or lower sustained commodity prices will increase or decrease, respectively, the Company's net sales, gross margin and Adjusted EBITDA dollars.

• Net income was $35.7 million, or $0.31 per diluted share, compared to $23.2 million, or $0.20 per diluted share, in the same period a year ago.
• Adjusted net income was $39.8 million, or $0.34 per diluted share, compared to $27.6 million, or $0.24 per diluted share, in the first quarter of 2018. The increase of $12.2 million, or 44.2 percent, was primarily driven by increased sales volume, improved profitability and lower interest expense.

• Adjusted EBITDA, on a trailing twelve-month basis, was $519.9 million and net debt was $1,582.4 million as of March 31, 2019. The leverage ratio decreased from 4.6x net debt / Adjusted EBITDA at the end of the first quarter of 2018 to 3.0x as of March 31, 2019, a reduction of 1.6x and in line with the Company's balance sheet management target of between 2.5x and 3.5x. 
  
  
• Due to seasonal working capital needs, net cash used in operations and investing was $14.7 million. We expect to generate $190-220 million in cash from operations and investing in 2019, in-line with the Company's full year cash flow guidance.
  
  
• Liquidity as of March 31, 2019 was $585.9 million, consisting of net borrowing availability under the revolving credit facility and cash on hand.

"Our team demonstrated the breadth, diversity and strength of our platform in a challenging first quarter. The fundamentals of demand for housing remain intact as we move into the spring sales season. Although commodity prices will be a headwind compared to last year, our fifteen thousand team members are focused on above market growth and exceptional service to our customers across our national footprint. This includes executing on our strategic initiatives in value-added products and our operational excellence programs. I want to thank our team members who enabled us to deliver value to our customers and excellent financial results to our shareholders," concluded Mr. Crow.

Conference Call
Builders FirstSource will host a conference call Friday, May 3, 2019 at 9:00 a.m. Central Time (CT) and will simultaneously broadcast it live on the Internet. The earnings release presentation will be posted at www.bldr.com under the "investors" section after the market closes on Thursday, May 2^nd. To participate in the teleconference, please dial into the call a few minutes before the start time: 800-263-0877 (U.S. and Canada) and 323-794-2094 (international), Conference ID: 1017206. A replay of the call will be available at 1:00 p.m. Central Time through May 18^th. To access the replay, please dial 888-203-1112 (U.S. and Canada) and 719-457-0820 (international) and refer to pass code 1017206. The live webcast and archived replay can also be accessed on the Company's website at www.bldr.com under the "Investors" section. The online archive of the webcast will be available for approximately 90 days.

Headquartered in Dallas, Texas, Builders FirstSource is the largest U.S supplier of building products, prefabricated components, and value-added services to the professional market segment for new residential construction and repair and remodeling. We provide customers an integrated homebuilding solution, offering manufacturing, supply, delivery and installation of a full range of structural and related building products. We operate in 39 states with approximately 400 locations and have a market presence in 75 of the top 100 Metropolitan Statistical Areas, providing geographic diversity and balanced end market exposure. We service customers from strategically located distribution facilities and manufacturing facilities (some of which are co-located) that produce value-added products such as roof and floor trusses, wall panels, stairs, vinyl windows, custom millwork and pre-hung doors. Builders FirstSource also distributes dimensional lumber and lumber sheet goods, millwork, windows, interior and exterior doors, and other building products. For more information about Builders FirstSource, visit the Company's website at www.bldr.com.

Cautionary Notice
Statements in this news release and the schedules hereto that are not purely historical facts or that necessarily depend upon future events, including statements about expected market share gains, forecasted financial performance or other statements about anticipations, beliefs, expectations, hopes, intentions or strategies for the future, may be forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. Readers are cautioned not to place undue reliance on forward-looking statements. In addition, oral statements made by our directors, officers and employees to the investor and analyst communities, media representatives and others, depending upon their nature, may also constitute forward-looking statements. As with the forward-looking statements included in this release, these forward-looking statements are by nature inherently uncertain, and actual results may differ materially as a result of many factors. All forward-looking statements are based upon information available to Builders FirstSource, Inc. on the date this release was submitted. Builders FirstSource, Inc. undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise. Any forward-looking statements involve risks and uncertainties that could cause actual events or results to differ materially from the events or results described in the forward-looking statements, including risks or uncertainties related to the Company's growth strategies, including gaining market share, or the Company's revenues and operating results being highly dependent on, among other things, the homebuilding industry, lumber prices and the economy. Builders FirstSource, Inc. may not succeed in addressing these and other risks. Further information regarding factors that could affect our financial and other results can be found in the risk factors section of Builders FirstSource, Inc.'s most recent annual report on Form 10-K filed with the Securities and Exchange Commission. Consequently, all forward-looking statements in this release are qualified by the factors, risks and uncertainties contained therein.