Furring strips are thin metal or wood pieces attached to unfinished walls to support finish surfaces or fill in uneven sections. They are commonly used in basement renovations and siding construction. Installation varies depending on the trim material used, and building codes should be followed.
Furring strips are thin, long pieces of metal or wood that are attached to an unfinished wall to support various finish surfaces or to fill in uneven sections of an unfinished wall. A furring strip is commonly 1 inch (2.5 cm) by 2 inches (5 cm) or 1 inch (2.5 cm) by 3 inches (7.5 cm) and is attached either horizontally or vertically to the existing wall. In home renovations, they are often used in a basement renovation where the existing walls are made of exposed concrete, block or brick. Furring strips provide non-structural support and a solid surface to which to attach finishing materials such as boards or backing boards. How the strips should be attached and spaced apart is determined by the existing wall material and the trim material that will be attached to the strips.
Siding strips are usually made from solid wood, but can also be made from metal if building codes require the support members to be fireproof. In some cases, fur strip construction is used in roofing, most commonly for buildings such as barns and sheds, although plywood is often used. Not all types of siding require the use of these strips. For example, drywall can be installed without them, and other construction methods are used when installing a gypsum wall.
Furring strip installation varies depending on the type of trim material used. When installing the heavy panels used as backing material for ceramic tiles, the trim strips should be spaced widely apart. When the finishing material is thin paneling, the strips can be spaced apart. Siding strips can be used during a remodel to both add new wall finishing materials and add insulation to walls. It is often recommended that 2 inches (5 cm) by 4 inches (10 cm) size wood be used for the siding strips when adding insulation, instead of the narrower wood used otherwise.
It is usually easiest to attach pile strips vertically and should be attached the full height of the wall. The strips must be fixed using screws, nails or an appropriate glue, such as Liquid Nails or a similar product. If the existing wall is concrete, brick or block, you must use appropriate fasteners, such as concrete screws or concrete anchors. When using metal strips, refer to the manufacturer’s installation instructions. Always make sure your project follows the building codes of the area where you live.
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