This Saf-T-Box is a heavy-duty support for new construction or applications with attic access. It fits all ceiling fans, can support a fixture up to 150 pounds, and is acceptable for fan support up to 70 pounds. This box is a heavy-duty, all-metal electrical pan that is 1-1/2 inches in depth with a 15.5 cubic inch wiring capacity. This product includes mounting hardware and instructions and a Saf-T-Cap to protect the inner workings during drywall installation or painting.