Rectangular pool

How much lining and edge material does a pool need?

Calculate the floor and four walls as the internal lining. Then calculate a horizontal coping band or a linear drip edge as a separate item.

Internal pool dimensions

Internal lengthmInternal widthmConstant depthmLining allowance%Tile widthcmTile lengthcm

Perimeter finish

Coping widthcmUsable length per piececmEdge allowance%

CalcuCeram

Pool lining report

Geometry, tile size and quantities use the same validated input.

Parametric 3D pool plan

The basin, depth, coping and tile-size grid use the same dimensions as the calculation.

Rotate view

Length: 8 m
Width: 4 m
Depth: 1.5 m
Tile: 30 × 60 cm
Reproducible view: 42°

Internal lining

Floor: 32 m²
Four walls: 36 m²
Net area: 68 m²
Area with allowance: 74.8 m²
Tile size: 30 × 60 cm
Tiles estimated by area: 416 units

Coping band

Internal perimeter: 24 m
Net coping band: 7.56 m²
Coping with allowance: 8.32 m²
Edge pieces: 44 units

CalcuCeram

Reproducible data

Geometry, tile size and quantities use the same validated input.

Reproducible data

Calculation date: Aug 10, 2026, 8:00 PM UTC
Version: pool-1.2.0
Internal length × Internal width: 8 × 4 m
Constant depth: 1.5 m
Lining allowance: 10 %
Tile size: 30 × 60 cm
Perimeter finish: Coping band
Edge allowance: 10 %
Usable length per piece: 60 cm
Coping width: 30 cm
3D view: 42°

The 3D grid represents tile size and orientation; the tile order remains an area estimate, not an optimised cutting layout.

The pool lining and perimeter finish are kept as separate materials. Interior tiles are estimated by area and do not constitute a floor-and-wall layout. The calculation assumes a rectangle, flat floor and constant depth; it excludes steps, slopes, overflow details, junctions, waterproofing and special corner pieces.

Calculation method

Floor = length × width. Walls = 2 × (length + width) × depth. The allowance is then applied to the combined internal area.

Separate sections

Internal lining is reported in m². Coping is calculated as a band in m² and drip edge as length and pieces.

Site verification

Measure steps, benches, slopes, junctions, overflow details and every special piece outside the rectangular basin separately.

In the print dialog, choose ‘Save as PDF’.

Formula used

basin = length × width + 2 × (length + width) × depth; coping = outer rectangle − inner opening

Worked example

An internal basin measuring 8 × 4 × 1.5 m has a 32 m² floor and 36 m² of walls: 68 m² net. With a 10% allowance, the lining order is 74.8 m². Coping or drip-edge pieces are calculated separately.

Common mistakes

Using external dimensions instead of the internal basin dimensions.
Adding coping and submerged lining as though they were the same product.
Forgetting steps, benches, slopes, overflow details or variable depths.
Treating a geometric quantity as validation of the waterproofing and adhesive system.

Pool lining report

Parametric 3D pool plan

Formula used

Worked example

Common mistakes

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