Request Free Quote This swimming pool in Northfield, IL measures 20'0"x 40'0", and the raised spa measures 8'0" in diameter. The spa has a waterfall feature. There is an automatic pool cover on the pool with a custom stone lid. The pool has 5 deck spray water features, as well a large underwater bench. The coping is Valders Wisconsin Limestone, and the decking is a concrete paver with brick inlays. The pool finish is cool blue. Photos by Larry Huene.