Tile Layout Quantity Calculator
Estimate tile quantities for a rectangular room, floor or wall while keeping tile size, grout joint, orientation, cutting allowance and box packing visible. Compare both tile orientations before ordering.
Room and tile dimensions
Layout comparison
Orientation A
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Orientation B
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How tile layout quantity differs from simple area division
A basic area calculation divides floor area by tile area. That is useful as a minimum check, but it does not tell you how many tile positions are needed across the actual dimensions.
Module width = tile width + joint
Rows = ceiling(room dimension ÷ module)
Tiles = rows × columns
Why orientation is worth checking
Rotating a rectangular tile can change the number of rows and columns, affecting edge cuts and the planning quantity even though the individual tile area remains identical.
Worked example
For a 6 × 4 m area using 600 × 600 mm tiles and a 3 mm joint, the repeating module is 603 mm. The tool checks the row and column count for both orientations and then applies the selected waste allowance.
What the waste allowance means
The waste percentage is an ordering allowance for cuts, breakage and unusable remnants. It is not a universal industry constant. Complex rooms and directional patterns often require a different allowance than a simple rectangular floor.
Practical ordering advice
Order based on the actual installation plan rather than the room's gross area alone. Keep spare tiles from the same batch where color or lot consistency matters, and separately record unopened boxes when reconciling the final requirement.
Frequently Asked Questions
Does grout joint change tile count?
It can change the row and column count because it changes the repeating module.
Why calculate both orientations?
One orientation can produce fewer rows, columns or awkward edge cuts.
Should I add waste?
Usually a project-specific allowance is useful.
Does this work for walls?
Yes for rectangular wall panels using the same dimensional model.