How much paint do I need?

To determine the quantity of paint is a simple calculation of square footage. Keep in mind, this is the measurement of ALL surfaces, not just the floor perimeter. Measure the height of the walls and multiply by the width to find your square footage of one section and then do the same for each wall and add together for the grand total. 

Example: A 9’x12’ bedroom with 8’ ceiling height. 

Wall 1: 9’ x 8’   = 72 sq. ft. 

Wall 2: 9’ x 8’   = 72 sq. ft. 

Wall 3: 9’ x 12’ = 108 sq. ft. 

Wall 4: 9’ x 12’ = 108 sq. ft. 

TOTAL: 72 + 72 + 108 + 108 

= 360sq. ft. 

Benjamin Moore paints cover approximately 400 sq. ft. per gallon, but may stretch in coverage depending on the coverage of colour, porosity of the material and/or the quality of paint line. It is generally recommended to start with less and come back for more or buy potential extra, which can later be used for touch up. 

So, for the above example, 1 gallon would cover the space for one coat and a little extra for a second coat; it may stretch to cover 2 coats or an extra quart may be necessary. Second coats cover better than first, as the paint is already levelled out, so it’s really just to cover up missed spots or streaks! Two coats is always recommended for a beautiful, full coverage finish. 

Typical Coverage of Benjamin Moore products: 

1 gallon: 400sq. ft. 

1 quart: 100sq. ft. 

1 5g pail: 2000sq. ft. 

1 test pot: 25 sq. ft.