Tampa, FL - Masonite International Corporation today announced results for the fourth quarter and year ended December 31, 2012.

Executive Summary

* Net sales increased $34.4 million, or 9.0%, to $418.2 million and $186.8 million, or 12.5%, to $1,676.0 million for the fourth quarter and year ended, respectively, over the comparable 2011 periods. Excluding the impact of foreign exchange, net sales would have increased $225.2 million or 15.1%, to $1,714.4 million for the year ended. Foreign exchange had a negligible impact on fourth quarter net sales.

* Adjusted EBITDA1 increased $3.3 million, or 14.8%, to $25.6 million and $15.3 million, or 18.7%, to $97.3 million for the fourth quarter and year ended, respectively, over the comparable 2011 periods. Excluding the impact of foreign exchange, Adjusted EBITDA1 would have increased $2.6 million, or 11.7%, to $24.9 million and $17.2 million, or 21.0%, to $99.2 million for the fourth quarter and year ended, respectively.

* Acquisitions2 increased net sales by $34.3 million and $177.2 million in the fourth quarter and year ended December 31, 2012, over the comparable 2011 periods, and increased Adjusted EBITDA1 by $2.8 million and $19.9 million in the fourth quarter and year ended December 31, 2012, over the comparable 2011 periods.

“We are pleased with the results we achieved during 2012,” said Fred Lynch, President and Chief Executive Officer. “Through the tremendous efforts of our approximately 9,100 employees we lowered costs, improved service levels, introduced over one hundred new products, completed three strategic tuck-in acquisitions, completed the construction phase on our new state-of-the-art automated interior door plant and launched several exciting new proprietary e-commerce tools that we believe will improve our business results and those of our channel partners. We are confident these actions have positioned Masonite to benefit from what we expect to be a multi-year, multi-leg recovery.” 2

Fourth Quarter 2012 Discussion

Net sales increased 9.0% to $418.2 million in the three months ended December 31, 2012, from $383.8 million in the comparable period of 2011. Foreign exchange had a negligible impact on net sales during the fourth quarter. An increase in unit volumes resulted in $2.8 million of increased sales in the three months ended December 31, 2012 over the comparable period in 2011 and acquisitions2 contributed $34.3 million of incremental sales during the fourth quarter of 2012. Adjusted EBITDA1 for the three months ended December 31, 2012, increased 14.8% to $25.6 million from $22.3 million in the comparable period of 2011. Excluding a $0.7 million favorable impact of foreign exchange, Adjusted EBITDA1 would have increased by 11.7% to $24.9 million in the three months ended December 31, 2012, when compared to the same period in 2011.

Net sales in the North America segment increased 14.5% to $306.5 million in the three months ended December 31, 2012, from $267.7 million in the three months ended December 31, 2011. Excluding the impact of favorable foreign exchange, net sales in North America would have increased by 13.6% to $304.2 million. Results were primarily driven by $34.3 million of incremental sales from acquisitions2, as well as favorable unit volumes in the fourth quarter of 2012, partially offset by product pricing and mix and lower external sales of door components.

Net sales in the Europe, Asia and Latin America segment remained flat at $92.0 million in the three months ended December 31, 2012 and 2011. Excluding the impact of unfavorable foreign exchange, net sales would have increased 1.7% to $93.6 million. Net sales were positively affected by incremental sales of component products in the fourth quarter of 2012, partially offset by lower unit volumes.

Net sales in the Africa segment decreased 18.6% to $19.7 million in the three months ended December 31, 2012, from $24.2 million in the three months ended December 31, 2011. Excluding the impact of unfavorable foreign exchange, net sales would have decreased 14.5% to $20.7 million. The decrease in net sales was primarily driven by unfavorable unit volumes, which was partially offset by product pricing and mix.

Total company gross profit increased to $52.9 million in the three months ended December 31, 2012, from $49.6 million in the three months ended December 31, 2011. Gross profit margin decreased 30 basis points to 12.6% of net sales in the fourth quarter of 2012, from 12.9% of net sales in the fourth quarter of 2011. This decrease was primarily due to increased material costs as a percentage of net sales and a decrease in product pricing and mix, particularly in North America. These decreases were partially offset by the positive impact of our 2012 and 2011 acquisitions. 3

In the three months ended December 31, 2012, selling, general and administration expenses increased $4.7 million to $52.4 million, from $47.7 million in the three months ended December 31, 2011. Contributing to the increase was $4.7 million attributable to acquisitions2 as well as increases in personnel costs and losses on sales and impairments of property, plant and equipment during the three months ended December 31, 2012, when compared to the three months ended December 31, 2011. These increases were partially offset by $3.3 million of business interruption insurance recognized related to Marshfield, reductions in professional fees and the impact of foreign exchange. Overall selling, general and administration expenses as a percentage of net sales increased 10 basis points in the fourth quarter of 2012 to 12.5%, from 12.4% in 2011. Excluding acquisitions2 selling, general and administration expenses as a percentage of net sales were flat.

Fiscal Year 2012 Discussion

Net sales increased 12.5% to $1,676.0 million for the year ended December 31, 2012, from $1,489.2 million for the year ended December 31, 2011. Excluding the unfavorable impact of foreign exchange, net sales would have increased by 15.1% to $1,714.4 million. An increase in unit volumes resulted in $34.3 million of additional sales for the year ended December 31, 2012, over the comparable period in 2011 and acquisitions2 contributed $177.2 million of incremental sales for 2012. Adjusted EBITDA1 for the year ended December 31, 2012, increased 18.7% to $97.3 million from $82.0 million for the year ended December 31, 2011. Excluding a $1.9 million unfavorable impact of foreign exchange, Adjusted EBITDA1 would have increased by 21.0% to $99.2 million for the year ended December 31, 2012, when compared to the year ended December 31, 2011.

Net sales in the North America segment increased 21.3% to $1,224.1 million for the year ended December 31, 2012, from $1,009.1 million for the year ended December 31, 2011. Excluding the impact of unfavorable foreign exchange, net sales would have increased 21.8% to $1,228.9 million. Results were primarily driven by $177.2 million of incremental sales from acquisitions2, as well as favorable unit volumes for 2012, partially offset by a decrease in product pricing and mix and sales of component products.

Net sales in the Europe, Asia and Latin America segment decreased 5.2% to $370.3 million for the year ended December 31, 2012, from $390.7 million for the year ended December 31, 2011. Excluding the impact of unfavorable foreign exchange, net sales would have increased 0.7% to $393.6 million. The increase in net sales was the result of product pricing and mix, primarily in Western Europe, and incremental sales of component products, which were partially offset by lower unit volumes for the year ended December 31, 2012, compared to the 2011 period.

Net sales in the Africa segment decreased 8.8% to $81.6 million for the year ended December 31, 2012, from $89.5 million for the year ended December 31, 2011. Excluding the impact of 4

unfavorable foreign exchange, net sales would have increased 2.7% to $91.9 million. The increase in net sales was primarily driven by favorable product pricing and mix, partially offset by a decrease in unit volumes for the year ended December 31, 2012, compared to the 2011 period.

Total company gross profit increased to $216.3 million for the year ended December 31, 2012, from $185.4 million for the year ended December 31, 2011. Gross profit margin increased 50 basis points to 12.9% of net sales in 2012 from 12.4% of net sales in 2011. This increase was primarily due the impact of our 2012 and 2011 acquisitions, partially offset by continued pricing challenges, particularly in North America.

In the year ended December 31, 2012, selling, general and administration expenses increased $21.3 million to $208.1 million, from $186.8 million for the year ended December 31, 2011. This increase was due to an increase of $21.4 million of selling, general and administration expenses attributable to our acquisitions completed in 2012 and 2011. Overall, selling, general and administration expenses as a percentage of net sales declined 10 basis points in 2012 to 12.4%, from 12.5% in 2011.

Masonite Financial Statements

The quarterly financial statements and management’s discussion and analysis are located on the Masonite website under “About Masonite” then “Investor Relations” or

http://phx.corporate-ir.net/phoenix.zhtml?c=212381&p=quarterlyearnings.

About Masonite

Masonite International Corporation is a leading global designer and manufacturer of interior and exterior doors for the residential new construction; the residential repair, renovation and remodeling; and the non-residential building construction markets. Since 1925, Masonite has provided its customers with innovative products and superior service at compelling values. 5

Masonite currently serves more than 6,000 customers in 70 countries. Additional information about Masonite can be found at www.masonite.com.

Source: Masonite