If you are a Pittsburgh area contractor looking for a full line lumberyard, contact us to deliver & stock your next job.
Since 1949 Irwin Builders Supply has been one of the area’s largest lumber suppliers offering a variety of wood products.
Irwin Builders Supply stocks a wide variety of graded lumber and plywood. We work with a variety of manufacturers to consistently make available to our customers high-quality lumber products.
We source from national and local vendors to maintain value and quality for our Pittsburgh contractors.
- Number 1 grade & select wolmanized lumber
- KD Fir
- SYP & Fir Plywood
- Wall Panels
- Styrofoam SIS Insulated Sheathing Panels
- Engineered Lumber (I- joist and LVL beams)
- Composite Decking
- Gaurdeck™ from Guardian
- Luan Underlayment
- Precut Studs
- Roof Trusses & Wall Panels
- Fire Treated Lumber
- Zip System Wall & Roofing Sheathing
- MDO plywood
- Doug Fir Framing lumber
- Cedar boards
- Oak boards
- Poplar boards