How big is a gaga ball pit?

The short answer

A gaga ball pit is 15, 20 or 26 ft across. Every maker compared here sells those three sizes. The walls stand about 24 to 34 in high. The middle size, 20 ft, holds about 20 players at once. It needs a patch of ground about 32 ft across once you leave room outside the wall.

Gaga (often written GaGa) is a fast version of dodgeball. Players hit the ball with an open hand, and anyone the ball hits below the knee is out until the next round, though some rules use the waist instead²¹². The pit is the walled ring the game is played in, and its wall keeps the ball in play because the ball bounces off it². Most pits have 8 to 20 flat sides, so they are close to round. A pit's size is its width across flats, from one flat wall straight across to the wall opposite. Makers call it the diameter, and it is a little bigger than the floor inside.

Gaga pit sizes from six makers

Here is what each maker or seller prints for its three sizes.

Kay Park is the only maker that prints the floor inside the wall. Its 15 ft pit is 13 ft 6 in across inside, its 20 ft pit 19 ft, and its 26 ft pit 24 ft 4 in. That gives 158.5, 298.6 and 479.4 sq ft of floor¹. Gopher's walls work the same way: twelve 4 ft walls make a ring about 14.9 ft across, sixteen make about 20.1 ft, and twenty about 25.3 ft. So treat the size as a name, and expect the floor to be a foot or two smaller.

Prices sit close together, read as list prices in November 2026, before freight. Kay Park lists its three sizes at $1,955 to $3,230¹, and Action Play Systems' pits list at $1,928.95, $2,527.95 and $2,992.95⁷. Gopher's range runs from $1,499 to $6,799, but the top of that includes rubber flooring sets³. For the rest of the budget, see what a playground costs.

How many players each size holds

This is where the makers disagree, and why the question gets asked. For the same 26 ft pit, WillyGoat says up to 25 players², Action Play Systems' listing says 20 to 26⁶, and Gopher says 30 or more³. For a 20 ft pit, Action Play Systems says 15 to 20⁵ and Gopher says 20 to 25³.

Divide floor area by players and most of the gap closes. Kay Park's 20 ft pit has 298.6 sq ft inside¹. At Action Play Systems' 20 players that is about 15 sq ft each, and at Gopher's 25 it is about 12. Take the top of each maker's range, which is what a full pit looks like, and the figure runs from about 11 to 19 sq ft per player, with the middle near 15.

Plan on about 15 sq ft of floor per player. It is arithmetic on the makers' own figures, not a standard, and at 15 sq ft each the sizes work out like this:

Count the players at the start of a round, because players drop out as the round goes on². A class of 28 does not need a pit for 28 if half of them are on the climbers, and the playground capacity calculator estimates use at peak.

Wall height by age

Most kits sit at 24 to 28 in, and the commercial pits are sold for elementary ages: AAA State of Play and GameTime both rate theirs for ages 5 to 12¹²¹³. For the youngest players, WillyGoat points to the 15 ft pit for four to seven year olds².

Older players need a taller wall. The high wall kit adds 8 in, "designed for taller players" to "help keep the ball in play", which makes 32 in on a regular 24 in kit⁹. WillyGoat sends older kids and teens to the 20 ft pit². The KaBOOM! DIY wall, at about 34 in, is the tallest here¹¹. For a park that wants to hold eleven to sixteen year olds, a 20 or 26 ft pit with a high wall is the fit. Teen and tween spaces covers the rest of what that age group needs.

How much space to leave around the pit

Leave 6 ft clear outside the wall on every side. No gaga maker's listing gives a clearance figure in its text. The CPSC handbook does not mention gaga at all. Its catch-all rule for equipment it does not list is a use zone of "a minimum of 6 feet in all directions from the perimeter of the equipment", and "Use zones should be free of obstacles"¹⁴. A use zone is the ground around the equipment where a child leaving it would land, and it is also for "unrestricted circulation around the equipment"¹⁴. Players climb out of a gaga pit every round, so the rule fits.

GameTime, a commercial playground maker, draws its own gaga pit that way. Its top view dimensions the outer use zone line at 32 ft 5 in square¹³. Scaled from the same drawing, the pit inside is about 20 ft across, which leaves about 6 ft on each side.

The other answer comes from AAA State of Play, which lists a "use zone" for each pit no bigger than the pit itself, such as 20 ft 5 in for the 20 ft¹². That is the space the wall stands on, so read it as a footprint and add the 6 ft. Fall height and use zones explains the 6 ft rule in full, and the use zone calculator adds it to any footprint.

On a tight lot, that ring of clear space costs more ground than the pit does. Small site design shows when use zones may overlap and how to lay out a tight lot around them. At a school, keep it away from swing and slide use zones, as school playgrounds advises for any ball game.

What goes on the floor and around it

None of the sources here sets a surfacing depth for a gaga pit, and no maker prints a fall height for one. What they do give is a list of floors that work.

• Inside the pit. KaBOOM! lists asphalt, concrete, limestone, decomposed granite, sand or packed dirt, and says to remove any grass first¹¹. AAA State of Play says a freestanding pit can sit on grass, rubber mats or engineered wood fiber, on level ground with drainage underneath¹².
• Rubber flooring. Gopher sells its pits in sets with 5/8 in recycled rubber flooring "to enhance traction and get better bounces"³. The flooring kit for a 20 ft Action Play Systems pit is about 23 x 23 ft, so it runs past the wall and keeps spectators' feet clean too¹⁰.
• The 6 ft ring. Keep it firm, level and clear of benches, posts and fences. If the pit sits inside a playground's protective surfacing, keep that surfacing running through the ring rather than cutting a path of something else.

Mud is the problem the rubber flooring kits are sold to fix¹⁰. For a floor built from scratch, drainage and base layers and rubber tiles cover the build-up.

Two features help with access. Kay Park and Action Play Systems include an "ADA gate" with each size¹⁵. Gopher's pits include one 14 in high entry panel³, and the high wall kit has a 4 ft wide entry⁹. A gate only helps if a firm path reaches it, though. Accessible routes and surfacing covers that path.

A school pit, worked through

Take a school that wants one pit for recess. On a busy day, about 25 children want to play at once, and the site has a flat lawn about 40 ft square.

Start with players. At 15 sq ft each, 25 players need about 375 sq ft of floor. A 20 ft pit has about 299 sq ft by Kay Park's figure¹, or about 12 sq ft each for 25 players. That is Gopher's top count, and above Action Play Systems' 20. A 26 ft pit has about 479 sq ft, or about 19 sq ft each. On these figures the 26 ft pit is the one that fits 25.

Then check the ground. A 26 ft pit plus 6 ft each side needs about 38 ft across. The 40 ft lawn holds it, with a foot to spare on each side, where a 20 ft pit would need only 32 ft. The step up costs about $465 on the Action Play Systems price list⁷.

If the lawn were 34 ft, the 26 ft pit would not fit with its clear space. The choice then is a 20 ft pit at about 12 sq ft a player, or two groups taking turns. What the numbers rule out is a 26 ft pit squeezed in with 4 ft of clearance.

Building your own octagon

The KaBOOM! plan builds an octagon from twelve 2x12 boards, 16 ft long, each cut in half. That makes 24 pieces of 96 in, with both ends cut at 22.5 degrees. Three boards stack to make each wall, held by 1x6 straps, and hinges join the corners. One side has only two boards and is the way in for smaller children¹¹. KaBOOM! warns to check that the court "is actually an octagon and doesn't resemble an egg-shape"¹¹.

An octagon's side length is the width across flats times 0.414. So KaBOOM!'s 96 in sides make a pit about 19.3 ft across, with about 300 sq ft inside. For other sizes, change the board length. A 16 ft board gives two sides up to 96 in, so past about 19 ft each side needs a board of its own:

Gopher and Action Play Systems build from UV-stable recycled plastic³⁵. Wood needs more care, and timber rot and repair covers the upkeep.

Where this answer stops

The 15 sq ft per player figure is this page's arithmetic on makers' counts. No standard or study sets it. The 6 ft clear space is the CPSC general rule applied to a piece of equipment the handbook never names¹⁴. That is how GameTime draws its own pit, but a local code or your insurer may ask for something else. This page also does not cover children standing or walking on top of the wall. If they do, the wall is a raised surface they can fall from, and the 6 ft ring may need protective surfacing. Ask a certified playground safety inspector (CPSI) to look at it; CPSI certification explains what that inspector does.

What to decide next

Count the players at the start of a round, divide by about 15 sq ft each, and pick 15, 20 or 26 ft from the table. Add 6 ft on every side and check that the ground fits. Then choose the floor, plan the path to the gate, and choose a taller wall if the players are teenagers.

If space is the hard limit, start from small site design. For a school yard, school playgrounds shows where a ball game sits in the recess plan.