How to Estimate Paint Requirements

Estimated Paint Required for Your Painting Project

Introduction:

Nearly every DIY homeowner gets involved with house painting and figuring out how much paint is needed to do the job. The two factors for how to estimate paint requirements is the total square footage you intend to paint and the spread rate of the paint. A gallon of paint usually covers approximately 400 square feet but that depends on the texture of the material being painted. The information on the paint can applies to a smooth finish but if the finish is rougher, the gallon of paint will cover less square footage.

To calculate the square footage simply multiply the width of the wall (or area) by the height the wall. If there is more than one wall add them together to get the total area.

Calculate the area of all the surfaces that will not be painted, such as windows, fireplaces, and door or doorways. Again, multiply width times the height and add the figures together. Subtract this number from the first number and add 10% so you will have a little paint left over for touch-ups or repairs.

To calculate the number of cans of paint you need, divide your square footage number by the spread rate of the paint.

That’s how to estimate paint requirements for your paint project. As a side note; to estimate the amount of paint needed to paint the baseboard, door, and window trim, figure it at about 25% of the total amount of wall paint.

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