Painting a room is one of the most satisfying DIY projects. The difference between a professional finish and a sloppy one is mostly prep and technique — both covered here.
Professionals say the same thing: a good paint job is 80% prep and 20% painting. Skipping prep is the #1 reason paint jobs look amateur.
| Paint Type | Best For |
|---|---|
| Flat / matte | Walls, hides imperfections (less scrubbable) |
| Eggshell | Most walls — good balance of look and durability |
| Satin | High-traffic areas, bathrooms, kitchens, trim |
| Semi-gloss / gloss | Doors, trim, cabinets — durable and washable |
As a rough guide, one gallon covers about 350–400 square feet for one coat. Measure your wall area (height × width per wall) and divide by that to estimate. Always buy a little extra for touch-ups.
Primer is worth it on bare drywall, over stains, after repairs, or when making a dramatic color change (especially light over dark). For a repaint of the same color family on clean walls, you can often skip it.
It's usually better to remove wallpaper first, as paint can bubble and peel over it. If the wallpaper is smooth, well-adhered, and primed, it's possible, but removal gives a more durable result.