The 40mm x 80mm L shape is designed for larger structures where strength is not critical. Applications for this profile include framing and door tracks.
The 40mm x 40mm L shape was designed for lighter weight and strength requirements. Applications include lighter load bearing structures, guarding and light weight frames.
This 80mm x 80mm shape was designed for applications include lighter load bearing structures, guarding and light weight frames.
This 80mm x 160mm shape was designed for applications include lighter load bearing structures, guarding and light weight frames.