Stainless Steel Kitchen, RV, & Bar Sinks Integrated with a Foldable Faucet Adjustable to Any Angle Vertically and Horizontally, a Solid Wood Cutting Board, and a Glass Rinser The faucet can be concealed beneath the cutting board when the board is closed, eliminating the need for countertop space. For undermount installation, please allow an additional 3 inches of installation space (outer dimensions + 3 in) beneath the countertop. No additional space is required for overmount installation, as long as there are sufficient openings available to accommodate the sink.