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Selecting Steel Walls

Type of Construction External Treatment Minimum wall
width
  Robust Detail
         
Loadbearing
light steel frame
100mm Masonry only 263mm   E-WS-1
         
100mm Masonry or
weatherboarding
313mm   E-WS-4        
         
                 
Reinforced
concrete frame
100mm Masonry only
Infill glazing units
250mm   E-WS-2        
         
100mm Masonry, or glazing or
cladding
290mm   E-WS-5        
         
                 
Offsite manufactured
volumetric
100mm Masonry only 276mm   E-WS-3        
         
 
     
 
KEY   B.Regs
          + 3 dB
            + 5 dB
             

Thickness quoted is the minimum possible to comply with the full Robust Details specification including finishes.

A skim coat would be in addition.

Deeper studs will increase this dimension.

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for Floor/Wall Combinations

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for Selecting Your Robust Details