F2W (Floor to Wall)


The idea is to cut simple element of minimum 1.2m comprising timber joist concrete slab , and use them as timber stud and windbracing element. They will be completed with Kerto joist as top and bottom plate. This will build simple timber frame structure. They can be stacked together in order to increase the height or two or more element can but put together to increase the width. The strong links existing between Studs and concrete slabs allow to transmit shear load for the bracing of the wall. This allows to have easy to move element. The space between the studs may be filled with insulation to increase the thermal performance of the wall. The floor system of Batiment B in Nantes (France) is used as an example.

Key benefit

Re-use current Timber to concrete floor as wall element

Material list

Timber Joist
Kerto Joist
Concrete Slabs

Ecological values

Re-use current floor that are difficult to unmount. Also the goal is to have the simple element so it can be moved with standard transportation means



  • Economical span (mm)
  • Thickness (mm)
  • Airbourne sound reduction factor (dB)
  • Impact sound transmission (dB)
  • Resistance to fire class
  • Thermal properties





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