Home Decorating For Dummies
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To avoid having too much leftover wall paint, use these formulas to determine how much paint to buy when you start your home improvement painting project.

Total Wall Area:

[Total Length of All Walls] × [Wall Height] = Total Wall Area

Unpainted Areas:

[Window Height] × [Window Width] × [Number of Windows] = Window Area

[Door Height] × [Door Width] × [Number of Doors] = Door Area

Paintable Wall Area:

[Total Wall Area] – [Window Area] – [Door Area] = Paintable Area

Paint to Order:

[Paintable Area] ÷ 350 = Number of Gallons Needed for Smooth Walls

[Paintable Area] ÷ 300 = Number of Gallons Needed for Rough, Textured Walls or Unpainted Wallboard

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Katharine Kaye McMillan is a writer whose work appears regularly in magazines and newspapers. She is a contributing writer to Florida Design Magazine and the co-author of several books on decorating and design, including Sun Country Style, which is the basis for licensed signature collections of furniture and accessories by three leading American manufacturers and importers. Patricia Hart McMillan is a nationally known interior designer whose work for private clients, designer showcases, and corporations has appeared in publications worldwide, including the New York Times and USA Today. A prolific writer, McMillan is coauthor and author of seven books on interior design and decoration. She is decorating editor for Christian Woman Magazine and reports on design trends for The Sun-Sentinel in Ft. Lauderdale, Florida.

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