Recommended Levels of Gypsum Board Finish

For many years contract documents describing how gypsum board walls and ceilings should look prior to final decoration with paints and other wallcoverings have included nonspecific terms such as “industry standards” and“workmanlike finish.”

Every building material undergoes some amount of dimensional change from temperature (thermal coefficient of expansion) and moisture content (hygrometric coefficient of expansion).

Joint ridging, also called beading, is a uniform, fine-line deformation occurring at gypsum board joints.

These are specifications for the application and finishing of gypsum panel products and related items and accessories to interior walls and ceilings and to exterior soffits.

Weather shifts from one extreme to another can cause movement in wood framing (moisture related) or in steel framing (temperature related) which can have an effect on the final appearance of any given project.