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This step-by-step checklist guides you through painting an interior room from prep to cleanup. It’s for DIYers and homeowners who want a reliable, efficient process covering color testing, wall prep, priming, cutting in, rolling, second coats, trim, and cleanup.
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- Measure room and calculate paint needed — Measure wall width × height; subtract windows/doors. Add 10% for waste and two coats.
- Select paint color and finish; apply test patches — Paint 2–3 small patches on different walls and check in daylight and evening.
- Gather and buy supplies — Get paint, primer, angled brush, roller & cover, tray, tape, filler, sandpaper, drop cloths.
- Ventilate room and wear protective gear — Open windows, run a fan, and use a mask and gloves when sanding or using strong cleaners.
- Protect and clear the room — Prepare space before any prep or painting.
- Remove wall decor, light fixtures, and outlet covers — Store screws in a labeled bag so you can reattach later.
- Move furniture out or to center and cover with drop cloths — Protect floors with canvas drop cloths rather than thin plastic.
- Prep walls: fill holes and cracks with filler — Use lightweight spackle for small holes; follow manufacturer drying times.
- Sand repaired areas and rough spots; wipe away dust — Use fine-grit sandpaper (120–220) and a damp cloth to remove dust.
- Clean walls with mild detergent or TSP; rinse and let dry — Remove grease and stains so paint adheres evenly; allow full drying.
- Tape trim and edges with painter's tape — Press tape down firmly and remove any irregularities for crisp lines.
- Apply primer to bare drywall, patched areas, or stains — Prime new drywall, patched spots or stains to ensure uniform topcoat coverage.
- Cut in edges and corners with an angled brush — Paint a 2–3 inch border along ceilings, trim and corners before rolling.
- Roll main wall areas using even W-pattern strokes — Use a roller nap suitable for your wall texture and maintain a wet edge.
- Smooth drips and back-brush seams; sand light imperfections — Fix runs and rough spots between coats for a professional finish.
- Allow first coat to dry fully per paint can instructions — Check recommended dry time and humidity; rush-free drying prevents issues.
- Apply second coat evenly; repeat cutting in and rolling — A second coat ensures uniform color and durability.
- Paint trim, doors, and baseboards with appropriate brush — Use a sash brush or small roller for smooth trim finishes.
- Remove painter's tape at the right time and touch up flaws — Remove tape when paint is tacky or as recommended to avoid peeling.
- Clean brushes, rollers and store leftover paint; dispose waste properly — Clean with water or solvent per paint type and store sealed paint for touch-ups.
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