My most recent project, a fine-art print bin made of wild Oregon cherry, has a set of small leg levelers on the back legs to accommodate an uneven floor. The system uses a deeply imbedded 10-24 brass threaded insert and a long 10-24 allen-head cap screw tipped with a vinyl thread protector. If some stability is needed for an uneven floor it is a simple matter of turning the head of the cap screw. The vinyl tip protects the floor from scratches. Hope this provides some inspiration for a leg leveler of your own design!
Leg Leveler Detail – Top View
Leg Leveler Detail – Bottom View
Leg Leveler Detail – Layout Mock-Up for 2” Leg
Leg Leveler Detail – “The Parts”
Leg Leveler Detail – Mock-Up Top View
Leg Leveler Detail – Mock-Up Bottom View