The Strength of Douglas Fir Plywood

At Conrad Forest Products, we’re proud to offer high-quality Douglas Fir plywood, available in both untreated and Wolmanized® pressure-treated options. Known for its strength, durability, and reliability, Douglas Fir has been a trusted material in construction for generations.

Why Douglas Fir?

• Exceptional Strength & Stiffness – High strength-to-weight ratio.

• Durability – Pressure-treated options resist decay, insects, and moisture.

• Workability – Easy to machine, cut, and fasten.

• Versatility – Ideal for flooring, roofing, walls, subfloors, and more.

  

Untreated Douglas Fir Plywood

• Clean, natural finish suitable for staining or painting.

• Excellent performance in dry, protected environments.

• Stable for cabinetry, paneling, and furniture applications.

Wolmanized® Pressure-Treated Douglas Fir Plywood

• Protected against fungal decay and termites.

• Reliable for decks, fences, outdoor structures, and marine use.

• Meets AWPA standards for treated wood performance.

Douglas Fir Plywood Face Grades

• A-Grade – Smooth, sanded, nearly knot-free.

• B-Grade – Solid surface with minor repairs.

• C-Grade – Some knots and splits, strong for structural use.

• D-Grade – More visible defects, for utility or hidden construction.

Douglas Fir Plywood Types & Uses

• ACX – A smooth face / C back, exterior glue. For siding, outdoor furniture, painted projects.

• BCX – B face / C back, exterior glue. For shelving, paneling, semi-exposed uses.

• CDX – C face / D back, exterior glue. Standard for roof sheathing, wall sheathing, subfloors.

• CD (Interior) – C face / D back, interior glue. For dry, interior-only construction.

• A-Grade Panels – High-quality, sanded, furniture-grade finish. For cabinets, fine furniture, finish work.

• C & D Panels – Lower appearance, structural strength. For subfloors, underlayment, hidden construction.

The Conrad Advantage

Whether you need ACX plywood for exterior work, CDX for structural sheathing, or pressure-treated Douglas Fir for outdoor durability, Conrad Forest Products delivers quality, consistency, and trusted performance.