Estimate how many 25-lb bags of grout you need for a tile project. Coverage scales with tile size, joint width, and joint depth.
Bags Needed
— 25-lb bags
Rounded up.Usage Tip
Buy a little extra so the whole job comes from the same dye lot; grout color can vary between bags.
THE MATH
coverage per bag = 200 × (tile ÷ 12) ÷ (joint ÷ 0.125) ÷ (depth ÷ 0.25)
bags = round up( area ÷ coverage per bag )
bags = round up( area ÷ coverage per bag )
Grout fills the joints between tiles. Larger tiles have fewer joints and more coverage per bag, while wider or deeper joints use more grout.
Enter the tile area, the tile edge size in inches, and the joint width and depth.
Coverage assumes a 25-lb bag covers 200 square feet of 12-inch tile with 1/8-inch wide, 1/4-inch deep joints.
Coverage assumes a 25-lb bag covers 200 square feet of 12-inch tile with 1/8-inch wide, 1/4-inch deep joints.