Is Rim Board Necessary

Rim board: An essential part of an engineered wood floor system. … Thanks to its connections to the floor membrane, sill plate, and joists, it transfers vertical and lateral loads. This way, it helps the floor system act as a unit.

Where can you use rim board?

Common Uses APA Performance Rated Rim Board is used in floor systems as the structural component that fills the space between the sill plate and bottom plate of a wall or, in second floor construction, between the top plate and bottom plate of two wall sections.

What is a rim board on a deck?

Rim joists are the perimeter joists of a deck. The two outside parallel joists, plus those that run perpendicular to all the joists, form the rim of the deck or a band that ties the structure together. Hence, they are known collectively as band boards and rim boards.