100 Years Strong and Counting
Family-owned for over 100 years, we’ve built our business on trust, integrity, and lasting relationships.
Everything for Building
Built on Reliability
From small local builds to major developments, we deliver materials quickly and dependably.
Local Reach, Personal Service
With convenient locations in the Baltimore and DC metro areas, we’re close by and ready to help.
Windows & Doors
Where craftsmanship meets performance. From new construction to remodels, we offer a complete line of Marvin, Jeld-Wen, Andersen and other leading brands—installed by professionals who know their craft. Our specialists help you select styles, finishes, and energy-efficient options that elevate both form and function.
Moulding & Millwork
The details that define every space. National Lumber’s in-house millwork experts supply standard and custom profiles for trim, casing, stair parts, and more. Whether you’re restoring historic charm or finishing modern interiors, our precise cuts and premium materials bring lasting character to every project.
Why National Lumber?
Because experience, reliability, and service still matter. Since 1919, builders and homeowners across the Mid-Atlantic have trusted National Lumber for quality materials, expert guidance, and dependable delivery. We’re family-owned, locally rooted, and committed to helping your projects run smoother from start to finish.
