Pretty simple, The dryer sets on a ledge. The space from front to back of the ledge is 24". The dryer from front to back is almost 28" to the front feet. If you slide it back as far as the vent and piping will allow, the front feet are out on the floor and not setting on the ledge. . Those adjustable feet don't adjust out 4" so that's not an option. I either need some wood, brick pavers, or concrete the slab out for another 6" so the feet have a near level place to set . Another turd is the floor slopes to the right towards a floor drain and the slab does not so the slab is 3" from the floor on the left side and a 4" rise from the floor on the right. I'm going to run out to Menards and get some pavers. 2 of them at 1 5/16" each will get me 2 5/8". a little short but I should be able to adjust the feet out to make up the shortfall. If I stack 3 on the right side I will have 3 15/16" which is real close to the 4" I need. Wish me luck.