DuoSpan® Subframe

Durable aluminium subframe providing structural integrity and design flexibility.

DuoSpan® combines the strength of aluminium with the design flexibility of recycled plastic. This achieves a system that provides exceptional ease of installation, enormous strength and durability, and the scope to construct stunning decks and structures that would be impossible with conventional subframes. DuoSpan® provides the perfect subframe for Millboard decking, as well as a universal support system for other outdoor flooring. Its ingenious design facilitates top-down fixing of decking boards and makes it an easy installation for all levels of competence. DuoSpan® is comprised of aluminium joists, aluminium beams, aluminium brackets and plastic joist inserts, they can be used with the DuoLift® joist pedestal system if installed over a solid/ stable base.

Features and benefits:

• Has been designed by industry professionals to comply 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.

Application:

Suitable for roof terraces and ground-level terraces, installed onto DuoLift Joist Supports over a solid/ stable base. Suitable for areas over soft substrates such as patio areas or boardwalks, when installed using DuoSpan beams and posts.