523 CMR 12.08
Requirements for Boxing or Kickboxing Ring
A boxing or kickboxing ring must meet the following requirements:
(1) The ring must be 20 feet square within the ropes. The ring floor must extend at least 18 inches
beyond the ropes. The ring floor must be padded with ensolite or another similar closed-cell foam.
Padding must extend beyond the ring ropes and over the edge of the platform, with a top covering of
canvas, duck or similar material tightly stretched and laced to the ring platform. Material that tends to
gather in lumps or ridges must not be used.
(2) The ring platform must not be more than five feet above the floor of the building and must have
suitable steps for the use of the unarmed combatants. Ring posts must be made of metal, not more than
three inches in diameter, extending from the floor of the building to a height of 58 inches above the ring
floor. Ring posts must be at least 18 inches away from the ring ropes.
(3) There must be four ring ropes, not less than one inch in diameter and wrapped in soft material. The
lower rope must be 18 inches above the ring floor.
(4) Except as otherwise provided in 523 CMR 12.08(5), there must not be any obstruction or object,
including, without limitation, a triangular border, on any part of the ring floor.
(5) There may be one or two triangular borders on the ring apron under the following conditions:
(a) There must be a minimum of 24 inches from the edge of the bottom rope to the apron edge.
(b) If two triangular borders are being used, both triangular borders must be placed on the same
side of the ring.
(c) The dimensions of a triangular border may not be more than five inches in height or more than
48 inches in length.
(d) The seats immediately behind a triangular border must be raised from the arena floor by an
amount equal to the height of the triangular border.
(e) A triangular border must be placed at the outermost edge of the apron and secured to the
apron floor by Velcro or a similar fastener.
(f) A triangular border must be removed immediately upon the request of a representative of the
Commission.
(g) The promoter must provide the Commission with a letter from the site of the program of
unarmed combat stating that the site has no objection to the use of triangular borders.