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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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Pyro-Guard® Interior Fire Retardant Treated Lumber & Plywood

Pyro-Guard® is pressure-impregnated, kiln-dried after treatment fire-retardant lumber and plywood for interior structural applications.

Pyro-Guard® lumber and plywood is UL listed and produced in accordance with quality control procedures mandated by the International Code Counsel Evaluation Service (ICC-ES).

When Pyro-Guard® wood is exposed to fire, water and non-combustible gas will form, as well as a layer of heatproof char, which prevents combustion and insulates the wood from further damage.

Pyro-Guard® Treated Lumber & Plywood Features

  • Commonly accepted by building codes for partition walls, store fronts, roof construction, and
    other interior structural elements
  • Contains no VOCs, urea formaldehyde or formaldehyde, halogens, sulfates, chlorides, or
    ammonia phosphate.
  • Flame spread index of 25 or less (Class A)
  • Can be painted or stained
  • Meets the performance requirements of AWPA U1, Commodity Specification H for US Category
    UCFA and AWPA C20/C27 (Type A, HT).
  • Listed on the Department of Defense (DoD) Qualified Products List (QPL) and meets the
    requirements of MIL-L-19140-E as a Type 1 fire-retardant treatment for lumber and plywood

Available Pyro-Guard® Treated Lumber & Plywood Sizes And Styles Include:

  • 1x3x8′
  • 1×4 – 10, 12 & 16′
  • 1×6 – 10, 12 & 16′
  • 1×8 – 12 & 16′
  • 2×4 – 8-16′ & 20′
  • 2×6 – 8-16′ & 20′
  • 2×8 – 8-16′ & 20′
  • 2×10 – 8-16′ & 20′
  • 2×12 – 8-16′ & 20′
  • 4×4 – 8, 10, 12 & 16′
  • ACX plywood ¼, ⅜, 15/32, 19/32, 23/32, 1″
  • Rated Sheathing Plywood ⅜, 15/32, 19/32, 23/32″
  • Underlayment Grade Tongue & Groove (T&G) 19/32, 23/32″

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Pyro-Guard™ Resources

  • Hoover Treated Wood Products
  • Pyro-Guard Certification
  • Pyro-Guard Safety Data Sheet
  • Pyro-Guard Specifications
  • Pyro-Guard Finishing Guidelines
  • Pyro-Guard Storage, Handling & Installation Recommendations
  • Pyro-Guard Warranty
  • Pyro-Guard Plywood Listing Service
  • Pyro-Guard Fastener Recommendations

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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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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