Install pieces of heat-treated wood on the structure leaving a 1/8" gap between boards to allow water and other liquids to flow through.
Fasten boards to structure using exterior screws or nails or any other compliant fastening system available at your local dealer.
Angle
Max Space
90
16" O.C.
60
14" O.C.
45
12" O.C.
30
8" O.C.
Never let your wood lay directly on the ground, which may hasten decay.
If your deck sits 24" or less from the ground, plan for adequate ventilation underneath the structure to avoid a high level of humidity, which may hasten decay.
Heat-treated wood can be cut or resawed without altering its coloration.
In order to preserve its original colour, heat-treated wood must be protected against the effects of UV rays as soon as it is installed.