Last Saturday I had 2 goals to complete: paint the master suite ceilings and figure out how much lumber we would need for the bathroom subfloors.
The ceilings are painted.
Then I measured the exposed floor areas in the two bathrooms. When the tile is applied the shower pans it will continue into the rooms with no barrier between the shower and the bathroom floor.
Keeping the above dimension in mind we’ll need six 4′ by 8′ pieces of 1/2 inch plywood for the sub floor to create one-inch thick flooring. (Apparently plywood does not come in inch thick pieces. Half-inch will also be easier to maneuver.)
Cement backerboard however generally comes in 3′ by 5′ pieces (even though ProBuild delivered 4′ by 8′ sheets to us). I think we can buy 6 sheets and piece with the extra we have left from putting cement board in the showers.
The process is to lay two layers of 1/2″ plywood, 1 layer of cement backerboard, apply one layer of KERI waterproofing membrane, then tile.
Do you fret over economical layouts and plans?