Estimating Paint Requirements
Most exterior products will average 400 to 450 square feet per gallon on smooth surfaces.
However, some surfaces due to irregularity or roughness of the surface will take considerably
more paint. Reference the chart below to get a good idea on the amount of paint you will need.
Asbestos Siding (Sealed)
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350 sq. ft. per gallon
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Asbestos Siding (Unsealed)
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250 sq ft. per gallon
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Board & Bat (Rough)
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250 sq. ft. per gallon
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Board & Bat (Smooth)
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350 sq. ft. per gallon
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Brick (Rough Sealed)
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150 sq. ft. per gallon
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Brick (Rough Unsealed)
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100 sq. ft. per gallon
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Brick (Smooth Sealed)
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200 sq. ft. per gallon
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Brick (Smooth Unsealed)
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150 sq. ft. per gallon
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Concrete Block (Filled)
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250 sq. ft. per gallon
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Concrete Block (Unfilled)
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100 sq. ft. per gallon
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Haydite Block (Filled)
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200 sq. ft. per gallon
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Haydite Block (Unfilled)
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75 sq. ft. per gallon
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Rough Sawed Siding
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275 sq. ft. per gallon
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Shake Shingles
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200 sq. ft. per gallon
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Smooth Concrete (Sealed)
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400 sq. ft. per gallon
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Smooth Concrete (Unsealed)
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350 sq. ft. per gallon
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Smooth Shingles
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275 sq. ft. per gallon
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Stucco Medium (Sealed)
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150 sq. ft. per gallon
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Stucco Medium (Unsealed)
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100 sq. ft. per gallon
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Stucco Rough (Sealed)
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100 sq. ft. per gallon
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Stucco Rough (Unsealed)
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75 sq. ft. per gallon
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It is advisable when estimating the square footage in the average residence to include areas
such as windows, doors, etc. in the final figure. Deduct these areas only when they comprise
a more than average percentage of the total area.
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