Is there a formula for calculating finish requirements in gallons in terms of lineal feet (uppers and lowers, 18" deep)?
Generally, this information is on the back of the can or is available from the manufacturer. Spread rates will vary based on method of application, thinning of the material and the substrate. Usually, the rates are broken down by square foot and linear foot. The Painters and Decorators Association puts out a manual on bidding projects and spread rates.
Bob Niemeyer, forum technical advisor