Pressure Treated Plywood TREAT BROWN 4X8X12.5 (1/2") NOT FOR BASEMENTS Product Code: 07010803-00 $71.98 TREAT BROWN 4X8X15.5 (5/8") NOT FOR BASEMENTS Product Code: 07010806-00 $89.32 TREAT BROWN 4X8X18.5 (3/4") NOT FOR BASEMENTS Product Code: 07010809-00 $99.96