Home Decorating For Dummies
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To determine how much paint to buy for your DIY job (if you're in a country that's adopted the metric system), find the square meterage of the area you plan to paint and divide by the number of square metres covered by a litre of paint.

  • Total wall area: Total length of all walls x wall height

  • Unpainted areas:

    • Window area = window height x window width x number of windows

    • Door area = door height x door width x number of doors

  • Paintable wall area: Total wall area – window area – door area

  • Paint to order:

    • Paintable area 1500 = number of litres needed for smooth walls

    • Paintable area 1350 = number of litres needed for rough, textured walls or unpainted wallboard

About This Article

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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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