Paint sheen, and how to pick the right one

Sheen is how much light the dried film reflects. It drives washability and durability far more than colour does, and it decides how much of your wall's history stays visible.

As a rule of thumb: the flatter the finish, the better it hides imperfections and the worse it scrubs. The glossier the finish, the tougher and more washable it is, and the more every dent, roller mark and patch will show. Most interior walls land on eggshell or satin because that is where the trade-off sits for a room people live in.

The sheen ladder

Why the trade-off exists

Sheen comes from the ratio of pigment to binder. A flat paint carries a lot of pigment and relatively little binder, which leaves a microscopically rough surface that scatters light in every direction — so a dent casts no consistent highlight and disappears. A gloss paint is the reverse: more binder, a smoother film, light reflecting in one direction.

That same binder is what makes the film tough. It is what resists a sponge, a scuff and a child's hand. So the property that makes gloss durable is inseparable from the property that makes it unforgiving about a wall that is not perfectly flat. You cannot buy your way out of it; you can only pick which problem you would rather have.

Room by room

Ceilings take flat almost without exception. They are rarely touched, they are lit at a raking angle that exposes every imperfection, and flat is the only sheen that forgives that.

Living and dining rooms generally want eggshell. Enough washability for occasional marks, enough flatness to keep an older wall looking composed.

Hallways, stairwells and kids' rooms earn satin. These are the surfaces that get hands, bags and bikes against them, and the extra scrubbability is worth the extra visible texture.

Kitchens and bathrooms want satin or semi-gloss, less for the scrubbing than for the moisture. A tighter film sheds condensation instead of absorbing it, which is what keeps mildew from taking hold in a grout line's worth of damp.

Trim, doors and cabinets are semi-gloss or gloss almost always. They get touched constantly, they are usually a different colour from the wall anyway, and the sheen change is part of how trim reads as trim.

Two things people get wrong

Sheen is not consistent between brands. One manufacturer's eggshell can be noticeably glossier than another's satin. If you are touching up or matching an adjacent wall, the brand and line matter as much as the sheen name on the can.

Sheen changes the apparent colour. The same tint reads lighter and slightly washed out in gloss, because you are seeing reflected room light as well as pigment. If you picked a colour off a flat chip and are painting in semi-gloss, expect it to look a shade different.

Where to start

We are a Benjamin Moore dealer, and the paint counter carries interior lines in matte, eggshell, pearl and semi-gloss alongside the exterior range. If you are matching a colour you already have rather than choosing a new one, bring a flat sample at least an inch square and we will scan it — see paint colour matching, which is done at the counter while you wait and keeps the formula on file for re-orders.

The paint and finishing department covers the rest: primers, stains, and the brushes, rollers and tape that decide how the finish actually lands. If you are painting a room from bare walls, the interior painting prep guide covers the order of work.