Adding Walls on I-Joists
I want to finish the basement of a home I recently purchased. The first floor is built with I-joists, and I’m wondering if I can attach the top plates of the new basement walls to the flanges of the joists. Will that compromise the strength of the I-joists?
Tony Hill, Middletown, DE
Editorial adviser Mike Guertin replies: yes, you can secure the new framing to joists without weakening them. Carefully drive the nails near the middle of the flange; nailing too close to the edge could split it. To further reduce the chance of splitting, use smaller diameter nails (0.131 in. or less), driving no more than two nails into each joist.