Pressure Treated Plywood


Pressure treated plywood is impregnated with preservative by a pressure process.  This treatment process helps protect plywood over its lifespan against rot and decay allowing for longer and more reliable lifespans.  



 -Wood foundations

 -Retaining walls

 -Decks, docks, piers, and floats

 -Industrial applications, storage, etc. 


Available Sizes:

Information Request

Recommended Fasteners:

Hot dipped galvanized steel or stainless steel 


Treated Plywood Spec Sheet

Treated Plywood Safety Data Sheet

Treated Plywood KDAT Spec Sheet


Fire Treated Plywood 

Fire treated plywood is specially treated with chemicals that provide a physical barrier to flame spread.  The treated wood chars, but does not oxidize, which significantly reduces the spread and progress of fire in a building.  Certain plywoods are also graded "Exterior" which gives it both a fire retardant rating, and a treatment to prevent the fire retardant chemicals from leaching out in wet conditions.   


Available Sizes: 

Features & Benefits:

  -All panels are pressure impregnated, and not top-coated, ensuring permanent protection 

  -When exposed to fire, non-combustible gas and water vapor are produced, and a layer of protective char forms

  -All panels are stamped with their associated fire treatment, and certified 

  -Installs with regular woodworking tools

  -Can lower insurance costs 




Q: What will happen when fire treated lumber is exposed to fire?

A: The wood will release a non-combustible gas and water vapor, and form a protective layer of char.  The wood will hold its strength for a longer period of time, maintaining the stability of the structure and allowing more time for first responders to control the fire.  

Q: Can I rip fire treated lumber?

A: Panels can be ripped to size.  Lumber can not be ripped - it can only be cut to length.  

Q: What are the recommended fasteners?

A: Hot dipped galvanized steel or stainless steel 

Q: When should I use exterior fire treatment?

A: Use of exterior fire treated panels are recommended for applications where they are exposed to the weather, dampness, high humidity or cyclical wetting.  For example, an open air pavilion, multi-family decks, exposed roofs, etc.  

Q: What is the appearance of fire treated lumber?

A: Fire treated lumber will generally have a normal appearance.  The major difference is that all wood will be stamped, signifying its treatment. 

Q:  Can I paint fire treated lumber?

A:  Yes, there are no issues with painting or staining the wood. 



Pyro Guard Product Page

Fire Treated Brochure

Fire Treated Submittal Form



Fiber Source