Pyroguard Fire-Retardant BC Plywood is chemically pressure-treated to reduce the spread of flames and generation of smoke. PyroGuard meets the flame spread requirements of all building codes. PyroGuard is a fire retardant that is pressure impregnated and carries a flame spread rating of 30 minutes ASTM E-84.

Available in 3/4″ thickness only.  The plywood is a BC grade and can be Fir or Pine ply with one good face. The front face is clean, smooth surface with minimal blemishes.  The back side allows for knots and blemishes.  This grade of plywood is often used for installation of telephone equipment boards and other areas where a clear plywood face is required.  The treatment on this plywood is designed for interior application only and should not be in direct contact to the weather or moisture.   Plywood is sold in full 4×8 sheets only.


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Additional Information

Pyroguard fire retardant plywood is pressure-impregnated with fire retardant treatment, not just brushed or rolled on.  This provides a 30 minute flame-spread testing.  Plywood is kiln-dried after treatment to help restore stiffness and strength.

This plywood can be painted or stained just as untreated wood, but flammability of the finish should be considered. Pyroguard plywood is in intended for interior use only and should be protected against direct moisture, precipitation or regular condensation. Pyroguard plywood is low-corrosivity and low-hygroscopicity. Galvanized steel hardware is recommended, although the treatment does not increase the corrosion of bare steel. Ripping or cross-cutting plywood, drilling holes and light sanding is permissible. It is not necessary to field-treat cut ends to maintain the flames spread rating.

Available in stock:

3/4” (23/32) thickness – Sold by the sheet and unit

Available special order:

Other thicknesses are available special order in AC or BC upon request in units only.

Pyroguard Product Information Link