![]() For finishes such as ceramic set in dry-set mortar, latex-portland cement mortar, or organic adhesive, the UFGS suggests a plumb tolerance for walls of 1/8″ in 8ˈ. Similarly, the United Facilities Guide Specification (UFGS) suggests a tolerance of 1/4″ in 8ˈ for plumbness of studs when finishes such as wallboard, plaster or ceramic tile set in a mortar bed are used.The Residential Construction Performance Guidelines suggest a maximum out of plumb of 3/8″ in 32″ vertically, while the Handbook of Construction Tolerances suggests that this may need to be tightened to 1/4″ in 10ˈ when finishes such as gypsum wallboard and plaster are used. ![]() ![]() The tolerance guidelines listed below are typical of all light-frame construction and not necessarily specific just to wood framing.Īlthough there are no specific requirements for construction tolerances of light-frame wood construction in the International Building Code (IBC) or referenced standards such as the American Wood Council’s National Design Specification® (NDS®) for Wood Construction, the following are commonly accepted guidelines.įor vertical in-plane wall tolerances (i.e., plumb wall surfaces): Regardless of the material being used for a building’s structural elements, tolerances are often controlled by product and finish manufacturers in order to ensure product performance. Construction tolerances are a means of controlling items such as vertical element plumb, size and/or length of structural members, and general layout and location. ![]()
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