The GANG-NAIL Posi-STRUT system is a light economical method of providing large clear spans in rafters, purlins or floor joist situations. Frames and supports can be further apart to facilitate open spaces below.

The heart of the Posi-STRUT truss is the GANG-NAIL
Posi-STRUT web, which is a V-shaped folded metal web with nail plate type connector ends. This metal web is attached to ordinary timber chords on both sides to form a very effective parallel chord truss.
The open-web pattern enables services and ducting to pass through the joist, rafter or purlin with ease.