Floor - Mid Internal Floor - Timber - Input Required  help

Walking surface

Walking surface thickness

 mm

Floor joist width

 mm

Floor joist depth

 mm

Floor joist centres

 mm

Finish/Insulation below joists


You can either select an insulation or enter the
target U-value you want to achieve below...

Insulation between joists 

or Target U-value  W/m²k


Hover over me

Calculate U‑value

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