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Interior painting & finishes

A paint choice includes the surface, preparation, product system and coverage. Keep color preference separate from compatibility.

Paint rollers, a paint tin and finish samples on an oak workbench.
AI-generated preparation study · not a product review

Write the finish schedule first

List which surfaces are included: walls, ceiling, trim, doors or cabinetry. Each line should identify the substrate, current coating, intended finish and proposed product. This prevents a room-wide quantity from hiding several different coating systems. Choose sheen and color with the room’s lighting and use in mind, but keep those preferences separate from the question of whether a product belongs on that surface.

Estimate each product with its own coverage

Measure in one unit system. Add the areas to be coated, subtract only the openings you intend to exclude, then multiply by the number of coats and divide by the product coverage per coat. Primer and topcoat get separate estimates. A label may provide a range; a smooth, sound surface and a porous or textured one need different judgment. Our planner uses the coverage you enter rather than claiming one number fits every paint.

Sherwin-Williams: paint calculator ↗ — An approximate quantity tool; take actual coverage from the selected product.

Treat the application method as a project choice

A brush helps with controlled edges; a roller covers open areas; spraying introduces its own masking, setup and cleanup requirements. Compare the whole job, including access and protection, before shopping for equipment. The paint and applicator instructions should agree about the surface, material and application method. A machine’s advertised speed does not measure how long your preparation, coating and cleanup will take.

Plan drying, recoating and return to use separately

Make separate spaces in the schedule for application, the permitted recoat interval and return to ordinary use. A surface that feels dry is not proof that its finish has reached its intended hardness. Record the actual product, conditions and next permitted action instead of writing only “paint Saturday.” Check the technical data for the chosen finish, and leave enough room in the plan for slower conditions.

Benjamin Moore: painting kitchen cabinets ↗ — A manufacturer’s product-system example, not a universal schedule.

Keep these details together.

  • Manufacturer preparation instructions
  • Topcoat and primer quantities separately
  • Access, masking and drying conditions

Go a little deeper.

Use the publication’s reference library to connect the task to the relevant constraints.

Materials & Fixings Guide ↗
Interior painting & finishes: Write the finish schedule first; Estimate each product with its own coverage; Treat the application method as a project choice
READ THE DETAILS

Keep going with interior painting & finishes

Questions to start with

How far does 1 gallon of paint go?

Use the coverage range printed for the exact paint and surface. If a hypothetical product covers 350 square feet per gallon per coat, one gallon covers 350 square feet for one coat or 175 square feet for two coats before allowance. Porosity, preparation and application can change actual use. Enter the product’s own coverage in the paint planner.

Sherwin-Williams: paint quantity calculator ↗

How much will a 5 gallon bucket of paint cover?

Multiply the selected product’s coverage per gallon by five, then divide by the number of coats. For example, 5 × 350 ÷ 2 = 875 square feet for two coats before allowance. The 350 figure is an arithmetic example, not a specification for every paint. Measure the walls and subtract openings before ordering.

Sherwin-Williams: paint quantity calculator ↗

How long should you wait for a second coat of paint?

Read the recoat interval for the exact product, not only its dry-to-touch time. Temperature, humidity, ventilation and film thickness can affect the process. A surface that feels dry may not yet be ready for another coat or for regular use. Keep the product data sheet with your project notes.

Benjamin Moore: cabinet coating process ↗

All guides · All questions

NEW / THE COLOUR WORKBENCH

Find a colour worth trying.

Mix colours, compare saved swatches and plan the quantities for a small sample.

Open the colour mixer ↗