Plastering Planning Tools

Wall area calculator

Estimate the net area of rectangular walls before asking for a plastering specification.

Enter your measurements

Combined wall length (m)

Common wall height (m)

Combined door and window opening area (m²)

Assumptions and limits

Net wall area = combined length × common height minus openings. Group walls of the same height; calculate other heights separately. Excludes ceilings, reveals, returns, curves and waste. It does not specify plaster quantities, board counts, coats or drying time. Damp, loose backgrounds and suspect textured coatings require assessment before work.

Related guidance: Internal Plastering · Skimming · Plasterboarding

Plastering room preparation checklist

Prepare a room in a way that supports the plasterer’s agreed method.

Tick the preparations you have completedAgree which walls, ceilings, reveals and repairs are included.Ask the plasterer to assess damp, loose surfaces and previous coatings.Agree who moves furniture and protects floors and remaining items.Confirm responsibility for safe removal or adjustment of electrical fittings by a competent person.Ask about water access, waste removal and access hours.Ask for product-specific drying and decorating guidance after the work.

Assumptions and limits

Do not scrape or sand suspect coatings, disturb possible asbestos or remove electrical fittings yourself. This checklist is not a survey, asbestos assessment or drying-time guarantee.

Related guidance: Plaster Repairs · Ceiling Plastering · Artex Removal & Covering

Further guidance

HSE: asbestos guidance

Guidance checked 17 October 2026. The tools cannot assess the actual property or grant permissions.

Ready to discuss the work? Choose the relevant plastering service for guidance and enquiry options.

Plastering Planning Tools

Wall area calculator

Your planning notes

Assumptions and limits

Plastering room preparation checklist

Your planning notes

Assumptions and limits

Further guidance