I am building out a workshop space in my basement, and want to put up framing on the walls, as shown here:
Specifically the left wall and the far wall, both of which have a lip. The foundation blocks are 8" deep (inside to outside) - 2" of concrete, 6" void, then 2" of concrete. Ideally, I would like to fasten 2x3's or 2x4's to the block using appropriate anchors. The framing members would extend from the lip up to near the top of the wall. My research has shown that a Concrete Sleve Anchor such as this: http://www.confast.com/products/concrete-sleeve-anchor.aspx is the best fastener for the job, and is rated sufficiently (1590lbs tension, 3060lbs shear).
Note: I am avoiding traditional framing with a header, full length 2x4 studs, and a footer resting on the basement floor, mostly because the basement floor is very uneven, and can flood in the spring.
What I would like to understand is:
- How much load can 2x3's or 2x4's attached to concrete block support?
- Is this different than simply summing up the fastener tolerances and accounting for safety margin, i.e. 1590lbs / 4 (safety) = 397lbs per stud?
- Does the choice of stud (2x3 vs 2x4) AND the choice of orientation (long side vs short side facing out) matter in terms of supporting this load? If so, how?