Boxspan is manufactured from two generally  ‘C’ shaped roll formed sections of high tensile, zinc coated coil steel, which are mechanically locked together.

Boxspan can be used in any application as an alternative to timber.
Some common uses are:

- Floor joists and Bearers
- Rafters for raked roofs
- Decks
- Architectural beams for carports, pergolas and awnings
- Storage shelving and racking

Generally, Boxspan is very competitive with any reasonable quality timber

• Much lighter than timber
• Termites wont eat Boxspan
• Boxspan is true in size
• Boxspan won’t twist, shrink or rot
• Boxspan is available in lengths up to 12 metres long
• Boxspan generally achieves the same span in less depth than timber (or greater spans with the same depth)
• Fire Resistant 

Per lineal metre the beams weigh:

The common sizes are: 
- 100 x 50
- 150 x 50
- 200 x 50
- 250 x 50

Yes, they are assembled like timber frames but all lengths are pre-cut and there is an easy plan to follow.

Ground Floors:

• Long lengths at no extra cost mean that for difficult sites the number of piers can be reduced by up to 60%, leading to large cost savings.
• No shrinkage, which causes cracked cornices, sticking windows and squeaks.
• Termites will not eat this frame. When used in conjunction with steel wall and roof framing, expensive termite prevention can be eliminated.

Upper Floors
The need for structural beams to break spans is greatly reduced due to the beams long spanning capabilities.