I’m installing a new whirlpool tub (at least in theory, so far) and I’d like to double up a pair of 2×8 (x 10’4″) floor joists under the new tub. The problem is that I have electrical wires that run through the existing joists – making installation of sister joists something less than a slamdunk.
Rather than re-running a bunch of wiring, I was wondering if I could simply build trussed joists around the wires. If anybody has any suggestions (and I realize that pharmaceutical suggestions might be entirely appropriate here) or references which might assist in this effort, I’d certainly appreciate it.
In the alternative, if one was to notch a solid 2×8, could the cutout be filled and reinforced (by a metal plate, for example) in order to restore the strength of the joist?