Rimboard is dimensionally stable, it resists shinkage while providing a smooth nailing surface for the attachment of sheathing and siding. It’s available in 16’ foot lengths in all the standard I joist depths.
 
 Rimboard is a solid OSB member which is used in the perimeter framing of the floor system. It is a cost effective method to transfer loads around the I Joist, while providing for rotational stability.