Inputs
Use exclusions to subtract tubs, islands, niches, or fixed furniture that will not be tiled.
Add one row per rectangle and use quantity to repeat identical zones.
Use this when you already know the net tiled area from drawings or a site takeoff.
How the estimate is calculated
- Tile count uses a repeating module of tile length + joint width by tile width + joint width. This slightly reduces the count compared with ignoring joints.
- Purchase tile count applies the waste allowance and rounds up to whole tiles.
- Grout volume uses a field approximation based on tiled area, joint width, joint depth, and tile size. Waste is applied after the base grout volume.
- Adhesive bags are based on the waste-adjusted tiled area divided by the adhesive coverage you enter per bag.
FAQ
How accurate is this tile, grout, and adhesive estimate?
Use it as a planning baseline. Real jobs vary with layout pattern, cuts, substrate flatness, trowel notch, tile back profile, and product-specific coverage. Check the supplier data sheet before ordering.
Should I add waste allowance?
Yes. Straight rectangular layouts may use a modest waste allowance, while diagonal, herringbone, lots of cuts, or keeping spare replacement stock usually require more.
Do grout joints change the tile count?
Yes. This page uses tile size plus joint width as the repeating module, which is closer to field coverage than dividing area by tile face size alone.
Should I subtract doors, tubs, islands, or built-ins?
Yes. Use the exclusions area so you do not order tile for fixed areas that will not be tiled.
Why do my boxes or bags round up?
Purchase quantities are rounded up because suppliers sell whole boxes and bags. It is better to order whole units than to under-order.
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Comments
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