To download a PDF with the appropriate installation instructions for your specific project, select the key variables below:
| TOPSIDE® New Construction | UNDERSIDE® Existing Decks |
The TOPSIDE® system is installed after the posts, beams, and joists are in place, but before the decking is installed.![]() |
The UNDERSIDE® product is installed to the bottom of the joists on existing decks.![]() |