Thinking of a cleanout about one foot above the floor in a hallway with ceramic tile flooring. Same floor as stove is on, but the stove would be on the other side of the wall and thimbled in. (Would use solid blocks from ground up to this point) Safety first. Are typical cleanout doors substantial enough to depend on inside home like this? Seems to satisfy local codes which speak in terms of "safe location" and "away from combustibles".