DuoSpan® Subframe

Durable aluminium subframe providing structural integrity and design flexibility, combining the strength of aluminium with the design flexibility of recycled plastic.

DuoSpan® is comprised of aluminium joists, aluminium beams, aluminium brackets and plastic joist inserts that can be used with the DuoLift® joist pedestal system if installed over a solid/ stable base.

The product provides the perfect subframe for Millboard decking, as well as a universal support system for other outdoor flooring. Its design facilitates top-down fixing of decking boards and makes it an easy installation for all levels of competence.

Features and benefits:

• Complies with Eurocode 1: Actions on Structures (BS EN 1991-1-1).
• Can be used as subframes for Millboard, WPC, timber, or other types of decking board.
• Lightweight aluminium profiles are always straight.
• Plastic Insert allows decking fixings to be put in at almost any angle.
• Specially designed brackets provide guidance to get two joist profiles aligned and flush.
• Cathodic barrier coated fixings limits the chance of galvanic corrosion.
• The blend of Plas-Pro plastic profiles aides curved designs.
• Lightweight, ease of handling, simple stable fixing, corrosion resistant, slot and screw assembly, flexible connectivity.

Components:

• DuoSpan 51 x 68 x 3600 mm Joist.
• DuoSpan 99 x 68 x 3600 mm Joist.
• DuoSpan 136 x 63 x 3600 mm Beam.
• DuoSpan Bracket Sets.

Ground preparation:

• DuoSpan 51 mm Joists: DuoLift Supports over a solid/ stable base.
• DuoSpan 99 mm Joists: DuoLift Supports over a solid/ stable base, or Plas-Pro posts and DuoSpan beams over a soft base.