A pedestal deck system transfers loads through individual support points rather than a continuous foundation. The deck pedestals listed here need to suit both the finished surface and the substrate beneath them. Check the supporting structure’s capacity for these concentrated loads on roof projects in the United States, and specify protection where bases bear on a waterproof membrane. Drainage beneath decking on pedestals still depends on the slope of the supporting surface, with outlets kept accessible.

Deck Pedestals

Wood framing requires adjustable decking joist supports that fit the joist dimensions and provide the required bearing area. Match a deck cradle to the specified lumber section, allowing for the connections that restrain the framing. Pedestal products also have minimum and maximum working heights; measure from the substrate to the underside of the joist, accounting for changes in substrate level across the deck.

What holds floating deck systems in place?

Perimeter restraints and framing connections control movement; the deck’s weight alone may not provide adequate restraint. Have the attachment details checked for the site’s wind exposure, especially on roof decks.

Can decking brackets for concrete replace pedestals?

Check whether the bracket requires anchoring into the concrete and how it transfers the deck load. Avoid substituting it for a freestanding support without reviewing the structural details and any waterproofing penetrations.

How is a deck tile pedestal system laid out?

Use tiles approved for raised installation and follow the specified support spacing, including any required intermediate supports. Position pedestal heads to support tile corners, and provide the specified restraint at exposed edges.