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Thought I knew overlay blocks until a commercial job in Denver
Spent half a day fighting with a set of overlay blocks on a 40-unit apartment job because I assumed the door frames were square like residential. Turns out commercial slabs shift way more than I figured and my blocks were off by almost 3/16 inch. Redid them all with adjustable shims under the blocks and it saved me from ripping out every frame. Anyone else run into slab variance on multi-family?
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alice3367d ago
Oh man, you just hit on something that drives me nuts. I had a similar headache on a townhouse complex last fall where the concrete was off by nearly a quarter inch across the whole slab. I was using those cheap plastic leveling pads and they just didn't cut it. Ended up switching to some thicker rubber shims I found at a hardware store near the site, and it made all the difference. Have you ever tried stacking different shim materials to get the exact height you need?
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julia_lee7d ago
Have you considered that moisture might be affecting your shim heights over time?
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