M₃U₁D₂S₁I₁L₁L₁

10 points

MUDSILL is validvalid

the lowest supporting timber of a structure [n MUDSILLS]

45,714 of 196,601 in NWL2023·also valid in CSW24

the lowest supporting timber of a structure [n -S]

153,045 of 280,887 in CSW24·also valid in NWL2023