Framing walls on an uneven concrete slab
I am about to start framing up walls for my woodshop. The existing slab slopes from back to front a total of about 4″ over the length of 28′-0″….yes, 4″. The concrete crew did a terrible job. I need some advise on the best/most efficient way of dealing with this slope in the slab when framing the walls. I feel a tight connection with a PT sill plate to the slab is crucial. So, I could:
1) Frame walls square on ground and then deal with space between PT seal plate and bottom plate of wall with large shims. Doing this though, I worry about a good connection to the sill plate.
2) Cut each stud individually to length so that top plate is level. Doing this requires the top plate (or string) up first and level, so that I will have something to measure to….seems it will work, but I worry about the consistency of measuring to something that spans 28′-0″
Sorry for the lengthy question….any tips/advise would be helpful!
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