LongLength OSB allows for easier sheathing of homes with higher ceilings, requires fewer total panels, and results in fewer seams, the firm says. Installed vertically, the extended-length panels tie the top plate to the floor joists and eliminate the need to install fillers or blocking material. Several lengths and thicknesses are available. The sheathing is SFI-certified. 888.820.0325. www.lpcorp.com.