Tile & Flooring Layout Calculator (Minimize Offcuts)
Quickly estimate edge cut widths, required tile count, and waste rate from room and material dimensions.
Compare 2-3 options to balance minimum offcuts and visual symmetry.
How To Use
- Enter room dimensions (L/W), material dimensions (A/B), and joint width.
- Choose direction (long-side orientation) and offset mode (centered or one-side flush).
- Compare candidate cards by waste rate, minimum cut, and balance.
- Review detailed numbers and the cut-position diagram for the selected option.
- Copy the share URL to discuss the same layout conditions with site members or clients.
Samples
600x300 tile, 3 mm joint
Input: Room 5400x3600 mm, tile 600x300 mm, direction = long side along room length, offset = centered
Output: Compare count, waste rate, and minimum cut across options A/B/C, then inspect cut positions
1818x303 flooring, 0 joint
Input: Room 4550x2730 mm, material 1818x303 mm, offset = one-side flush (left-bottom origin)
Output: Check offcut location for flush layout and whether minimum-cut threshold is violated
Formulas
P_x = TileX + J, P_y = TileY + JFlush: N = ceil((Room + J) / (Tile + J)), CutEnd = Room - (N - 1) * (Tile + J)Centered: Cut = (Room - (N - 2) * Tile - (N - 1) * J) / 2TotalTiles = N_x * N_yWasteRate = (A_buy - A_used) / A_buy
FAQ
Why would I pick an option with a higher waste rate?
Because waste rate is not the only criterion. Visual symmetry or avoiding tiny fragile cuts may be more important for your project.
What is the difference between centered and one-side flush?
Centered keeps edge cuts equal on both sides for appearance. One-side flush prioritizes full tiles from the start side and pushes cuts to the opposite side.
Is waste rate equal to real on-site discard?
Not always. If offcuts can be reused in other rows, actual discard can be lower than this estimate.
Why is field adjustment still necessary?
Cut-ins, wall irregularities, trim positions, and movement-joint requirements cannot be fully fixed by simple geometric calculation alone.
Can I enter room dimensions in meters?
Yes. Inputs can be in m or mm, and internal calculation is unified in mm.
Notes
- This tool is a rough layout estimator. Do not use it as final installation dimensions.
- Waste rate is a conservative estimate that assumes no offcut reuse. Real discard can be lower.
- Cut-ins, wall unevenness, trim positions, and movement joints must be confirmed on site.