[nlped]

I had to cut my existing floor (to thin) to get a thicker base to hold my lift. So I actually did a 4’x15’x14” hole and actually dug out 6” under the existing floor. Then I went with 6” of crushed stone, 1/2” rebar every 8” that tucked up under the existing slab and 8” of 4500 psi concrete with fiberglass added. Then I did 10” long 3/4” anchors (mine had 8 per post) so I think it’s good! I’ve lifted several f250 & Dodge 2500 diesels without issue.