Cofrastra® 40 is a metal floor decking with a re-entrant section for slim & light weight floor construction. It permits to build the lowest composite floor system according EN1994 using a classical pitch of 150 mm for a total cover width of 750 mm.
Cofrastra® 40 is the lowest composite floor decking in the market
The floor decking has a maximum of spans up to 2.70 m without props and until 4.50 m with props
The composite slab provides 10 % weight reduction in comparison to a traditional prefabricated concrete slab
The metal floor decking can be pre-punched to pass shear connectors of the composite steel beam
Re-entrant section allows a fast installation of ducts and of suspended ceilings with Cofrafix system
Approved acoustic performance with Rw values from 46 dB to 53 dB up to 65 dB for the special Cofrastra decibel system