Minimum clearance for stud cripple walls
Minimum clearance for stud cripple walls
(OP)
I have a plan checker who was requiring 12" minimum clearance from crawlspace sub-grade to wood.
The code requires 8" at exterior walls.
I had a detail for an interior footing to have a 6" curb height and a 3x ptdf sill plate for a plywood sheathed 2x4 cripple wall.
The plan checker said there is nothing in the 2006 IBC where the clearance is stated so he threw the min. clearance to girders (12") as his requirements.
The code requires 8" at exterior walls.
I had a detail for an interior footing to have a 6" curb height and a 3x ptdf sill plate for a plywood sheathed 2x4 cripple wall.
The plan checker said there is nothing in the 2006 IBC where the clearance is stated so he threw the min. clearance to girders (12") as his requirements.





RE: Minimum clearance for stud cripple walls
Garth Dreger PE
AZ Phoenix area
RE: Minimum clearance for stud cripple walls
I guess if he considers the studs to be posts then the 12" is better than the 18".
Garth Dreger PE
AZ Phoenix area
RE: Minimum clearance for stud cripple walls
The old '97 UBC had a provision for 6" clear from earth.
I don't think the new codes intent is to have the interior posts higher than the exterior foundation/cripple wall.
By the way I ended up going to the Building Official and he concurred with me.
RE: Minimum clearance for stud cripple walls
Garth Dreger PE
AZ Phoenix area