Opinion: Interior bearing wall plates

Inquiry:

00-06

Subject:

Interior bearing wall plates

Code:

UBC Sec. 1806.1, 1806.2, 1806.3, 1806.6, 2302, 2303, 2304, 2305, 2306, and 2308

Submitted by:

MN B.O. Uniformity Committee

Approved by:

Thomas R. Joachim, State Building Official

Issue Date:

January 12, 2000

Question:

Is treated lumber permitted to replace the concrete curb block on the interior wall footing?

Answer:

Yes, if the lumber was treated for ground contact, properly anchored, of proper width, and at least the thickness of the slab.

Comments:

The concrete floor slab could be poured against the sides of this "plate," and a treated 2x could then be installed on top. A (.60 C.C.A.) foundation grade material is not required because this is not part of a treated wood foundation system