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Curtis Lumber & Plywood

Wholesale Lumber & Plywood Distributor

(703) 972-1947
  • Treated Products
    • CCA
    • Copper Azole
    • Exterior Fire-X™
    • Micro-Guard™
    • Pyro-Guard®
  • Plywood
    • ACX
    • Marine Grade
    • MDO
    • Southern Yellow Pine
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Treated Products

treated lumber and plywood products in a warehouseAt Curtis Lumber & Plywood, we proudly offer a vast selection of southern yellow pine (SYP) lumber and plywood pressure treated with the industry-leading fire-retardant- and preservative formulations often specified for commercial and residential construction projects.

Fire-Retardant Treated Products

PYRO-GUARD® Interior Fire-Retardant Lumber & Plywood

PYRO-GUARD® pressure-impregnated fire-retardant treated lumber and plywood. Use for interior, enclosed, above-grade applications NOT exposed to weather, dampness or wetting. Pyro-Guard treated wood can be painted or stained.

For exterior applications, use Exterior Fire-XTM treated lumber and plywood.

PYRO-GUARD® Products

Exterior Fire-X™ Fire-Retardant Lumber & Plywood

Exterior Fire-X™ (XFX) pressure-impregnated fire-retardant treated lumber and plywood. Use for exterior, weather-exposed and other humid environment applications.

Unlike other fire-retardant products that can only be used in protected, enclosed environments, Exterior Fire-X is developed to withstand the outside elements while also being safe for use indoors. The Exterior Fire-X chemical is not water-soluble and will not leach out of the material when exposed to rain or moisture.

Exterior Fire-X can be painted or stained. If otherwise unfinished, water repellent preservative finishes are recommended for external, weather-exposed applications.

Exterior Fire-X™ BLUE Lumber & Plywood

Exterior Fire-X™ BLUE has the same fire performance characteristics as Exterior Fire-X. A blue stain is added during the pressure treating process for easy identification of the material.

Exterior Fire-X BLUE is widely specified by government agencies and is often used in the nuclear construction and ship-building industries.

Exterior Fire-X™ (XFX) Products

Micro-Guard™ Lumber & Plywood

Micro-Guard™ pressure treated lumber and plywood is protected against fungal decay, termites and fastener corrosion in interior and exterior, above-ground and ground-contact applications.

The Micro-Guard treating process uses the Osmose® MicroPro® technology which is a GREENGUARD® Children & Schools Certified low-VOC product suitable for use in schools, offices and other sensitive environments. Plus, MicroPro is approved by the National Association of Home Builders (NAHB) for points toward National Green Building Standard Certification.

Micro-Guard treated lumber and plywood is Kiln Dried After Treatment (KDAT) to reduce warping and twisting in lumber or buckling or crowning of installed plywood.

Micro-Guard™ Products

Copper Azole (CA) Treated Lumber

Copper Azole (CA) Treated Lumber is pressure-treated with a copper-based preservative that penetrates the wood’s cellular structure, providing long-lasting resistance to decay, rot and termites.

Copper Azole Treated Lumber Products

CCA Rot and Decay Resistant-Treated Plywood

Chromated copper arsenate (CCA) is a wood preservative that has been used since the mid-1930s and is instantly recognizable for the greenish tint it imparts to plywood. This preservative provides long-term resistance against decay, rot and termites.

CCA Treated Plywood Products

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Treated Products Resources

  • Combustible Materials In Noncombustible Buildings
  • Cutting, Ripping & Milling For Fire Retardant Treated Wood
  • Use In Plenums For Fire Retardant Treated Wood
  • Fire Retardant Treated Wood Selector Chart
  • Kiln Dried After Treatment
  • Overhang Fire Protection Guide
  • Permanent Wood Foundation Specifications
  • Eliminating Parapets In Townhouses
  • UL V314 Insulation Evaluation
  • Hoover Treated Wood Products Simple Savings Sheet
  • V314 Technical Note

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Curtis Lumber Logo White
7351 Highland St. Springfield, VA 22150 (703) 972-1947

Treated Products

  • CCA
  • Copper Azole
  • Micro-Guard™
  • Exterior Fire-X™
  • Pyro-Guard®

Plywood

  • ACX
  • Marine Grade
  • Medium Density
  • Southern Yellow Pine

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