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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
  • Green Building Info
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Exterior Fire-X™ Exterior Fire Retardant Treated Lumber & Plywood

Exterior Fire-X™ (XFX) is pressure-treated fire retardant lumber and plywood for exterior applications. With its non-corrosive non-combustible prevention, Exterior Fire-X™ (XFX) treated wood products are perfect for fascia, siding, scaffolding, trim, and roof sheathing, among other exterior projects.

Exterior Fire-X™ Treated Lumber & Plywood Features

Exterior Fire-X™ (XFX) provides comprehensive fire protection for projects that will likely be exposed to hot outside weather, as well as other humid environments. Exterior Fire-X™ products are strength-tested after prolonged exposure to moisture and high temperatures to verify its dependability and Kiln Dried After Treatment (KDAT) to ensure that all products are brought down to workable moisture levels. Exterior Fire-X™ (XFX) can be used outdoors and indoors, can be painted or stained, and meets the “non-combustible’ requirements by several building codes.

We offer Exterior Fire-X™ (XFX) in the Following Sizes and Styles:

  • 2×4 – 10, 12 & 16′
  • 2×6 – 10, 12 & 16′
  • 2×8 – 10, 12 & 16′
  • 2×10 – 10, 12 & 16′
  • 2×12 – 10, 12 & 16′
  • 4×4 – 10, 12 & 16′
  • 6×6 – 12 & 16′
  • 5/4×6 Radius Edge Decking – 12 & 16′
  • Rated Sheathing 15/32, 19/32 & 23/32″

Exterior Fire-X™ BLUE Lumber & Plywood

Exterior Fire-X™ BLUE is the same exterior-fire retardant treated lumber and plywood with a pressure-applied blue stain for color-codification and easy identification. It features the same specifications as Exterior Fire-X™, with the same performance characteristics. Fire-X™ BLUE is widely chosen by government agencies and is often used in the nuclear construction and ship-building industries.

Available Exterior Fire-X™ BLUE Lumber & Plywood include:

  • 2×4 – 8 & 16′
  • 2×6 – 16′
  • 2×10 – 16′
  • Rated Sheathing ⅜, 15/32, 19/32 & 23/32″

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Exterior Fire-X™ Logo

Exterior Fire™ Resources

  • Exterior Fire-X Specifications
  • Exterior Fire-X Safety Data Sheet

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
  • Wolmanized Pressure Treated Wood
  • Wolmanized Safety Data Sheet
  • 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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