Gym owners equipping an MMA facility often weigh a cage against a ring. The Unified Rules of MMA allow both formats in competition, with different requirements for shape, ropes and fencing. The disciplines you teach, the floor space you have and the events you plan to host drive the decision.
What the rules say about cages and rings
State athletic commissions apply the Unified Rules of MMA, which allow a bout to take place in a ring or in a fenced area. In Oregon and under Ontario’s amateur rules, the fenced area must be circular or have at least six equal sides, with a width between 18 and 32 feet. The fence must keep a fighter from falling out or breaking through, and the rules give vinyl-coated chain link as an example. All metal parts are covered and padded, and the enclosure needs two separate entrances. Ontario requires at least six metal posts standing 58 to 96 inches above the fenced-area floor, while Oregon sets post height at 6 to 7 ft above that floor. A podium raises the whole enclosure by up to 4 more feet, which adds to the ceiling height a gym needs.
An MMA ring follows different rules. Ontario’s amateur MMA rules require five ropes, the bottom one 7 to 9 inches off the floor, and an 18 to 24 ft square between the ropes. Massachusetts also requires five ropes, with the lowest at 12 inches, and a square of 20 to 32 ft. A boxing ring has four ropes, and an amateur ring measures 16 to 20 ft per side inside the ropes according to Ontario’s boxing rules and the trade site Boxsport. A standard boxing ring therefore does not meet the requirements for an MMA bout in a ring.
In all of these rules, the canvas sits on at least 1 inch of foam padding, and the platform stands no more than 4 ft above the building floor.
The cage and fence work
According to fight.tv, cage fighters press opponents against the fence to control them or to defend takedowns, and can climb the fence to get back up, a technique known as wall walking. The same site describes ropes that give under a fighter’s weight, with no solid surface for that work, and fighters who sometimes slip between the ropes, which stops the action.
A gym that develops amateur or pro fighters trains on the surface its athletes will compete on, so clinch and takedown drills against the fence match fight conditions. The UFC fights in an Octagon 30 ft wide, according to Dimensions.com and MMASucka. In the MMA Official range, small 13 to 16 ft cages suit classes and sparring, and 20 to 26 ft cages suit gyms training fighters.
Where a ring still fits a multi-discipline gym
Boxing, kickboxing and Muay Thai compete in a roped ring, according to fight.tv and Ontario’s amateur boxing rules. A combat sports gym that teaches those disciplines can set up a boxing ring for striking classes and keep a cage for MMA, or leave open mat space for wrestling and grappling.
For owners short on space, the floor boxing ring in the catalog goes up without drilling thanks to its steel frame. On a podium it reaches the Olympic 20 x 20 ft size. The MMA ring adds a fifth row of ropes and netting under the bottom rope, and the catalog lists it for promotions that fight in a ring.
Comparing formats and budgets
| Format | Shape and limits | Regulation width | Starting price excl. tax on MMA Official |
|---|---|---|---|
| MMA cage | Circle or at least six equal sides, fence | 18 to 32 ft | $2,606 (€2,333), portable octagon without flooring |
| MMA ring | Square, five ropes | 18 to 24 ft in Ontario, 20 to 32 ft in Massachusetts | $11,922 (€10,671) |
| Boxing ring | Square, four ropes | 16 to 20 ft in amateur boxing | $3,203 (€2,867), sparring floor ring |
Catalog prices exclude tax, shipping and installation. A complete 13 ft floor octagon starts at $3,203 (€2,867), a podium cage at $5,149 (€4,609), and competition cages with a catwalk run from $13,200 (€11,815) to $39,052 (€34,955) depending on size and podium height. Pro versions use 3.8 mm wire and 89 mm round uprights, Sparring versions 2.4 mm wire and a 5 cm square tube, less suited to heavy daily use by big fighters. Three models follow IMMAF technical regulations, according to the manufacturer, for gyms that want to host sanctioned amateur events.
On the MMA cages and rings page, you pick the model, size and options, then receive a priced estimate as a PDF by email. The catalog lists 21 cage and ring models.
FAQ
Do you need a cage to hold an MMA bout?
The Unified Rules allow either a ring or a fenced area, according to the text published by Boxing Insider and the Massachusetts regulations. The commission sanctioning the event sets the exact dimensions, so check with it before buying.
Can an MMA bout take place in a boxing ring?
Ontario and Massachusetts rules require five ropes for an MMA ring. A boxing ring has four, so competition calls for a ring built for MMA.
How thick should the floor padding be under a cage or ring?
Oregon, Ontario and Massachusetts rules require at least 1 inch of foam under a tightly stretched canvas. For amateur boxing, Ontario sets floor padding between 1 and 1.5 inches.
