S.C. Code Regs. 20-2.1
S.C. Code Regs. 20-2.1. Ring Dimensions; Floor Coverings
1. The boxing ring shall not be less than sixteen (16) feet or more than twenty-four (24) feet on each side square within the ring ropes.
2. The platform must extend beyond the ropes for a distance of at least eighteen (18) inches.
3. The ring posts shall be at least eighteen (18) inches away from the ring ropes.
4. The ring floor, both within and outside the ropes, must be padded to a thickness approved by the Commission’s Representative. Padding must be felt matting or other soft material that will not lump and must be approved by the Commission’s Representative.
5. There must be a top covering of canvas, duck or similar material tightly stretched and laced to the ring platform.
6. On the floor there must be a layer of Celotex Building Board Number 2 or a similar material approved by the Commission’s Representative.