Selecting Timber Walls
| Sheathing to cavity face | Cavity Width | Cavity Fill | Thickness | Robust Detail | |
| No sheathing or optional partial sheathing |
min.50mm between stud frames |
Generic | 303mm | E-WT-1 | |
| None allowed | 303mm | E-WT-3 | |||
| Fully sheathed or extensive part sheathing | min.50mm between sheathing faces |
Generic | 303mm | E-WT-2 | |
| Fully sheathed | min.60mm between sheathing faces |
None allowed | 303mm | E-WT-4 | |
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KEY | |||||
| Cavity fill is optional |
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.