Choose a corner of a room and spread a waterproof drop cloth to protect the floor while you strip the walls of plaster or drywall and install exterior grade plywood
to the studs.
External wall openings specified in Work Order shall be covered and secured with exterior grade plywood
or OSB wood of a minimum thickness of 3/8 nominal or its equivalent.
Bob Draper, by email AI WOULD use some 18mm-thick Amarinegrade plywood or exterior grade plywood
Bob Draper, by email I would use some 18mm-thick Amarine-grade plywood or exterior grade plywood
Use 18mm thick marine grade plywood or exterior grade plywood
, which is cheaper.
For larger square pots, make a sturdy mould using exterior grade plywood
or even cardboard boxes if you're happy with a rustic look.
4x2ft sheets of exterior grade plywood
cost around pounds 5 from Wickes.
A MAKE up a backing board for the tiles from a piece of plasterboard or exterior grade plywood
, cut to the size of the inspection hatch.
Exterior grade plywood
costs around pounds 20 for 8x2ft sheet and 8ft decking boards pounds 4.
If it's floorboards, then the movement of the wood will cause the tile adhesive to crack, so you must lay 12mm exterior grade plywood
An 8x4ft sheet of exterior grade plywood
costs from pounds 9.