Painting your home 2026: choose colours, calculate paint, paint smoothly
Painting your home yourself saves on labour and instantly changes the mood. Here's how to choose colours, calculate how much you need, and paint smoothly even as a beginner.
Pick colours by room
ภาพ: Roberto Marpaung — CC BY-SA (wikimedia)
| Room | Suggested tone |
|---|---|
| Bedroom | Warm/soft pastels for relaxation |
| Living room | Light neutrals — open, easy with furniture |
| Office | Cool tones (blue/light green) aid focus |
| Small room | Light colours make it feel bigger |
Choose the right paint type
- Interior: acrylic water-based — low odour, dries fast
- Exterior: dedicated exterior paint — sun, rain and mould resistant
- Washable (semi-gloss/gloss): for kitchens, bathrooms, hallways that get stained
Calculate how much paint
- Wall area = (total wall width × height), minus doors/windows
- A gallon covers ~35–40 m²/coat → with two coats, ~18–20 m²/gallon in practice
- Add ~10% spare for touch-ups
Paint smoothly, step by step
Photo: Mr.Peerapong Prasutr — CC BY-SA (wikimedia)
- Clean the wall, fill holes, sand smooth
- Tape ceiling edges/frames, lay down a drop cloth
- Prime (especially new walls or dark-over-light)
- Cut in edges with a brush, then roll in a "W" pattern for even coverage
- Apply the second coat after the first dries (per the can's time)
Verdict
DIY painting is easy if you pick the right paint for the room + calculate the amount first + prep the wall well + apply two coats. You'll get a smooth, pro-like finish for far less.
Compare paint and tool prices across shops before buying — it pays off.
Sources
Photo: PattayaPatrol — CC BY-SA (wikimedia)
- Manufacturer usage instructions on paint labels
- Painting practices from professional painters
Frequently asked questions
- How much area does one gallon of paint cover?
- Typically a gallon (~3.785 L) of water-based paint covers about 35–40 m² per coat. You should apply two coats for an even finish, so real coverage is around 18–20 m² per gallon.
- What paint should I use in a bathroom/kitchen?
- Use a moisture-resistant, washable paint (semi-gloss/gloss) — it resists stains and mould better than flat matte. Exteriors need dedicated exterior paint made for sun and rain.
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