Close, but not right on, until you allow for the porosity of the surface being covered. A corrugated metal wall will need one-third more paint to cover it than a flat metal one and you'll find that paint goes 10% farther on wide-lap siding than it does on narrow.
Any surface that is noticeable dry, rough and/or porous will drink up at least 20% more coating than a similar surface that isn't, and you should always figure on using an extra 50% of your paint when applying the first coat to concrete blocks.
By fossil1955 from Cortez, CO
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One savings tip is to sign up for a "contractor's discount" at your local paint store. Tell them you are doing a lot of painting and you can typically receive 15 to 20 percent off. You'll be buying good paint at a discount.
We are planning to paint the exterior of our house soon. My question is; How do we figure the amount of paint needed for the job. Any suggestions would be appreciated.
Judy from Birmingham, AL
Although this is for the interior of the house, the basic rules still apply!
1gal. of paint per 400 sq. ft and if you don't have a Wagner Spray Gun, invest! (don't forget to buy thinner for the gun also) (09/29/2006)
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