Abstract: A roller and tray apparatus includes a roller assembly which includes a handle portion, a bearing portion connected to the handle portion, and a replaceable porous roller portion connected to the bearing portion. The roller portion includes a first canted peripheral edge adapted to contact a first interior surface adjacent to an interior corner without contacting a second interior surface adjacent to the interior corner. A tray assembly includes a squeeze area for receiving the roller portion for squeezing out excess coating material from the roller portion. The squeeze area includes a first canted wall portion which is complementary to the first canted peripheral edge and is adapted to squeeze excess coating material out of the roller portion. The roller portion may also include a second canted peripheral edge adapted to contact a second interior surface adjacent to the interior corner without contacting the first interior surface adjacent to the interior corner.