Bill if I remember I made mine 24"D x 20"W x 30" Wide on casters but I made outriggers with adjustable feet to lock it in place and level it. Hockey pucks make good feet for this size mill. I just welded 1/2" x 3" black iron pipe on the corners and welded 1/2" nuts on the bottom . Used 4- 1' x 1/2" all thread , any angle iron can be used to frame it , , 3/4" plywood works glued and screws double thick. I made a full length drawer and a bottom hanged my hold downs set on the side and a couple hooks for wrenches. I did use sheet metal aluminum diamond plate on three sides but you can make your own on the frame top I welded in flat stock or angle iron to bolt down the mill . I did this about two years ago so I may be off a little but not much the mill base I think is like 20" x 18"