DURADECK PLYWOOD
Absorbs water NO YES
Safety Hazards NO YES - splinters, loose nails broken boards, etc.
Can rot or be eaten by termites NO YES
Warps when wet NO YES
Contains Arsenic NO POSSIBLE
Can be used in environmentally-sensitive areas YES NO
Contains recycled content YES NO
Solid and uniform construction YES NO
Treaded traction surface YES NO
Integrated connection system YES NO
May be used for other applications NO YES
(i.e. if stolen has other uses)
Gets heavier when wet NO YES
Loses strength when wet NO YES

DuraDeck is clearly the preferred choice over plywood and will save you money and headache over the long term.