Tile Backer Board Calculator
Estimate tile backer-board sheets, fasteners, fastener boxes, purchased coverage and material cost for a tiled floor or wall area.
Default project preview
11 boards
Net surface area
150 ft²
Order area
165 ft²
Coverage per board
15 ft²
Estimated fasteners
605
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Order area = (surface area − openings) × waste factor. Boards = round up (order area ÷ board area). Fasteners are estimated from the entered quantity per board.
FAQ
Tile Backer Board Calculator questions
Should backer-board seams align with tile joints?+
Layout requirements depend on the selected board and tile assembly. Follow the product installation instructions.
Does this include thinset or seam tape?+
No. The result covers boards and an editable fastener allowance only.
Why add cutting waste?+
Perimeter cuts, staggered joints, openings and damaged sheets can increase board use.