Box Paint for Consistent Color
The “same” color of paint can vary between cans. “That difference can be glaringly obvious if you pop open a new gallon halfway through a wall,” a retired painter tells PM. To ensure color consistency from start to finish, pros mix their cans of paint in a 5 gallon bucket (a process called “boxing”).
Some pros then paint directly out of the bucket. This eliminates the need to pour paint into a roller tray, though the heavy bucket is harder to move.