Lone Star Plywood & Door distributed millwork and related products to single family homebuilders in the Portland, Seattle, Denver, Dallas, and Houston markets. Founded in 1952, the Company operated under the “Lone Star Plywood & Door” trade name in Texas and Colorado and the “Hillsdale Sash & Door” trade name in Oregon and Washington.

In addition to distributing products manufactured by others, Lone Star assembled interior and exterior door units, and manufactured custom doors, sashes, entries, and moldings. Lone Star enjoyed market-leading gross margins and was the market share leader in the custom home segment in each of its markets.

In 1993, Endeavour partnered with the Company’s key managers to acquire the interest of a retiring shareholder. Endeavour remained invested in the Company until 1997.