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Renovation Repairs (tiles, plaster, paint)

Choose re-laying part of a tiled surface, patching plaster or repainting, enter the total surface and the share you redo. PRAXAO counts the work on that share only: replacement tiles with the joints, the waste and the adhesive and the rubble to remove; or the plaster by volume, weight and bags; or the paint and primer in litres and in cans. Consumptions, thicknesses, coverage and waste are starting values to replace with the maker’s data and your survey. The tool counts quantities: it does not diagnose the cause of the damage or the state of the substrate.

What do you want to calculate?

Choose the type of work, then enter the dimensions.

Results are provided for information. Check tax rates and legal requirements that apply to you.

How to use it

  1. Choose tiles, plaster or paint.
  2. Enter the total surface and the share to redo.
  3. Replace the starting values (tile size, thickness, consumption, coverage, waste) with the maker’s data.
  4. Read the quantities to buy, then price them in the cost panel.

Examples

Worked example — Re-lay part of a tiled surface — Total surface 40 m², Share of the surface to redo 25 %

Area actually redone: 10.00 m² · Replacement tiles to buy: 68 · Adhesive: 50.00 kg · Rubble to remove (in place): 0.300 m³

Frequently asked questions

Does it find the cause of the damage?

No. Damp, movement and cracks must be identified first: a repair on a faulty substrate fails again.

Why a share of the surface?

A repair rarely redoes everything. Counting only the share you redo avoids ordering for the whole surface.

Will the new tiles match the old ones?

Not necessarily. Shade and size can change between batches: check them, and keep spare tiles from the original batch when you have them.

Guides to go further

Next step

BUILNORA

Tile Calculator

Number of tiles and boxes for a floor or wall, with grout joints and a cutting waste margin.

BUILNORA

Plaster Calculator

Mortar volume, cement bags and sand to plaster or render walls from the area, thickness and waste.

BUILNORA

Paint Calculator

How much paint you need for your walls and ceilings, minus doors and windows, for the number of coats you plan.