Rollers can come in a variety of sizes. They range most commonly from 3 inch mini rollers to 18 inches long. Mini rollers are generally used for smaller areas such as closets, cabinets, or behind toilets. For the average wall, a 9-inch roller would suite perfectly. The larger rollers tend to be used on large projects and for commercial painter.
TIP: 9 Inch Roller is the most commonly used size The next thing to consider is the fiber the roller cover is made of. When using latex paint, a nylon or polyester roller cover tends to work best. A wool roller is a good choice when working with oil-based paint. Lastly, a foam roller will help to get a smooth finish on a surface such as cabinets. A microfiber roller will give the smoothest finish possible and tends to be very popular with contractors.
TIP: A nylon or polyester roller cover is great for latex paint. A final thing to consider is the nap of the roller. The longer the nap, the more paint it can hold. But the flip side of that is that the longer the nap, the greater the risk of leaving behind a stipply, textured finish on your wall. Here is a general rule of thumb when choosing a nap length.
- The duller the paint finish you’re using, the thicker the nap you can get away with. Flat paint, like ceiling paint, is generally done with a 1/2″ nap.
- Wall finishes like matte and eggshell are best applied with a 3/8″ nap.
- Semi gloss finishes on doors and trim are best applied with a 1/4″ nap.