Study repaint · example

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alex.riveraSunday Table

Worked example — fictional data. 31 m², two coats, 10 m²/L, and 10% allowance → 6.82 L. Change inputs to explore.

📊 Try the calculation

Metres and square metres; excludes ceilings and trim. Coverage is a fictional product value.

Room length in metres

Room width in metres

Wall height in metres

Total door and window area in square metres

Approximate wall area in square metres

0

A negative area means the measurements need correction. This rectangular-room model excludes ceilings and trim. Enter coverage from the actual product for the surface; leave it at zero until checked. A dash in the result means coverage is missing or zero.

📊 Turn measurements into a shopping decision

Product, finish, colour code, and coverage source

Verified square metres per litre per coat

Coats specified for this job

Additional allowance percent, chosen for this surface

Estimated litres including your allowance

—

Litres in the packs you intend to buy

Purchased litres above or below estimate

—

Product recoat interval; start time; earliest next coat; ventilation and room-use plan

Check a positive area and plausible dimensions before buying. Pack quantities are entered manually: choose available packs that cover the estimate. An allowance is your assumption, not a universal recommendation. Record separate primer quantities if required.

📝 Sequence the job

Before disturbing old coatings, check hazards and local professional guidance. US pre-1978 homes may contain lead paint: use qualified lead-safe advice. Stop for damp, damaged wiring, or unknown materials. Follow product ventilation and drying instructions.

1.

Confirm colour and finish on a small suitable sample.

2.

Protect furniture and floors, remove loose objects, and prepare only with methods suitable for the verified surface.

3.

Clean as directed and let surfaces dry. Repair minor defects with compatible products.

4.

Cut edges, then roll manageable sections while maintaining a wet edge.

5.

Wait the manufacturer’s recoat interval; apply the next coat if specified.

6.

Inspect in daylight, label leftover paint, and dispose of materials according to local guidance.

📝 Keep the settings that worked

Completion date, actual litres used, actual recoat interval, and where labelled leftover paint is stored

Keep this record for touch-ups. Re-measure the next room rather than copying its dimensions.

Comments

Created by

ST

alex.riveraSunday Table

Study repaint · example

📊 Try the calculation #

📊 Turn measurements into a shopping decision #

📝 Sequence the job #

📝 Keep the settings that worked #

📊 Try the calculation

📊 Turn measurements into a shopping decision

📝 Sequence the job

📝 Keep the settings that worked