All stakeholders, including public utility comÂ­. missions, city councils, and utilities, can use this paper to understand. the key issues and terminology, as well as the various perspectives each. cost-effectiveness test provides, and how the cost-effectiveness tests. can be implemented to capture additional energy efï¬ ciency.
Most codes require at least 15 inches (measured from the center of the toilet) from any side wall or obstruction and not closer than 30 inches center to center to any other sanitary fixture. (The NKBA actually recommends 32 inches.) There should be at least 24 inches of clear space in front of a toilet or bidet.
With toilets, the rough-in dimension, the shape of the seat (rounded or elongated) and tank design (one- or two-piece) all determine how much space a toilet will take up. The rough-in is the distance from the wall to the center of the closet bend (toilet drain) in the floor. Most newer homes have a 12-inch rough-in; older homes having a 10- or 14-inch measure. Naturally, the closer the toilet is to the wall, the less space it takes up. Kerr often calls for smaller fixtures in older homes where the rough-in is 10 inches and the toilet is centered in a 28-inch rather than a 30-inch space along the wall.