Cantilevered Sill Plates

Structural Building Components Association (SBCA)

Sill plates supporting metal plate connected wood trusses (MPCWT) are sometimes cantilevered over the foundation (parallel or perpendicular to the sill) to align the exterior sheathing with the foundation insulation. When this is done, there is a potential for a discontinuity between the exterior wall above and the foundation. This design guide will show when sill plates may be cantilevered without requiring design of the trusses for a cantilevered condition.