Golf Simulator Depth: 10 ft vs 18 ft — The Difference
The exact depth you need for camera, radar, and overhead launch monitors — with ball position math, safety clearance, and real room measurements for every common space.
Camera LMs need 10 ft. Radar needs 18 ft. Pick the wrong one and your data is garbage. Complete depth guide with ball position math and real room measurements.
The Short Answer
Camera LMs need 10 ft. Radar needs 18 ft. Pick the wrong one and your data is garbage. Complete depth guide with ball position math and real room measurements.
How much room depth do you need for a golf simulator in 2026? Camera-based launch monitors need 10 feet of total room depth. Radar-based units need 16-18 feet. Overhead units need 10-12 feet. The difference comes down to where the launch monitor sits — next to the ball (camera), behind the player (radar), or above the hitting area (overhead). Ball position, enclosure frame, and safety clearance all eat into your usable depth. Measure your room from the screen wall to the opposite wall, subtract the enclosure depth, and match your launch monitor type to what is left.
Depth is the dimension people get wrong most often.
They measure the room, see 14 feet, and think they have plenty of space. Then they buy a Garmin R10 because the reviews are good, set it up, and spend the next three weeks asking on forums why their readings are inconsistent. The answer is always the same: the room is too shallow for radar.
The problem is that depth is the only dimension where your launch monitor choice changes the requirement by almost double. A camera unit needs 10 feet. A radar unit needs 16-18 feet. Pick the wrong launch monitor for your room depth and you get bad data or no data.
This guide covers exactly how much depth you need for each launch monitor type, where the ball goes, where you stand, and where the LM sits.
The Three Depth Zones
Every golf simulator has three depth zones. The sum of the three is your total room depth requirement.
Zone 1: Ball to Screen. This is the distance the ball travels before hitting the screen. Camera units need 7-10 feet here. Radar units need 6-8 feet. Overhead units need 6-8 feet.
Zone 2: Stance (Behind the Ball). This is where you stand and swing. Camera units need 2-3 feet. Radar units need 2-3 feet. Overhead units need 3-4 feet. The stance zone is roughly the same across all LM types — your body occupies the same space regardless of what tracks the ball.
Zone 3: Behind the Player. This is the space behind your stance. For camera units, this is just a buffer — 0-1 foot. For radar units, this is where the LM sits — 8 feet minimum. For overhead units, this is also a buffer — 0-1 foot.
The zone that changes everything is Zone 3. Camera units need essentially nothing behind you. Radar units need 8 feet. That is the entire difference between a 10-foot room and an 18-foot room.
| LM Type | Ball to Screen | Stance | Behind Player | Total Depth |
|---|---|---|---|---|
| Camera | 7-10 ft | 2-3 ft | 0-1 ft | 10-13 ft |
| Radar | 6-8 ft | 2-3 ft | 8 ft | 16-18 ft |
| Overhead | 6-8 ft | 3-4 ft | 0-1 ft | 10-12 ft |
Camera-Based Launch Monitors: 10-13 Feet
Camera units sit on the floor next to the ball. They take a photo of the impact and use the first few milliseconds of data to calculate everything — speed, launch angle, spin, club path. They do not need to track the ball through the air. They do not need space behind you.
The standard setup: Ball 7-8 feet from the screen. You stand 2-3 feet behind the ball. The LM sits on the floor beside the ball. Total: 10-11 feet minimum.
The comfortable setup: Ball 9-10 feet from the screen. You stand 3 feet behind the ball. Total: 12-13 feet. The extra ball-to-screen distance gives you a better field of view.
Units that work: SkyTrak+ ($1,995), Bushnell Launch Pro ($2,499), Square Golf Omni ($1,495), Uneekor Eye Mini ($2,799), GC3 ($5,999), GCQuad ($11,999).
The gotcha: Camera units need consistent lighting. Uneven light creates shadows that the camera reads as part of the ball. Fix this with evenly spaced LED shop lights before you blame the launch monitor.
The real-world example: A 10x10 spare bedroom with a 9-foot ceiling. Ball 7 feet from the screen, stance 3 feet back. SkyTrak+ on the floor beside the ball. Total depth used: 10 feet. This works. The room is tight, the screen is small, but the data is accurate.
Radar-Based Launch Monitors: 16-18 Feet
Radar units sit behind the player and bounce radio waves off the ball as it flies toward the screen. They need to track the ball over 6-8 feet of flight to calculate spin, launch angle, and speed. The radar beam needs to see the ball from the moment of impact until it hits the screen.
The standard setup: Ball 6-8 feet from the screen. You stand 2-3 feet behind the ball. The LM sits 8 feet behind you on a tripod or stand. Total: 16-18 feet.
The problem: Most people do not have 16-18 feet of unobstructed depth in their home. A two-car garage is 20 feet deep, which works. A finished basement is usually 14-16 feet, which is tight. A spare bedroom is 10-12 feet, which does not work.
Units that need this depth: Garmin R10 ($599), FlightScope Mevo+ ($1,095), Mevo Gen 2 ($1,995), Rapsodo MLM2Pro ($699), TrackMan 4 ($19,995).
The gotcha: The LM needs to be level with the ball and pointed directly at the hitting zone. If the tripod is on a different surface than the mat, the radar beam misses the ball. Put the LM on the same surface as the hitting mat. Also, radar units struggle in rooms with metal wall studs, ductwork, or garage doors in the beam path — the radar waves bounce off everything and create noise in the data.
The real-world example: A two-car garage, 20 feet deep. Ball 8 feet from the screen, stance 2 feet behind the ball, Garmin R10 on a tripod 8 feet behind the stance. Total depth used: 18 feet. Two feet of buffer behind the LM. The R10 tracks every shot.
Overhead Launch Monitors: 10-12 Feet
Overhead units mount to the ceiling above the hitting area. They use multiple cameras to track the ball and club from above. They need the least depth because they do not sit on the floor in front of or behind you.
The standard setup: Ball 6-8 feet from the screen. You stand 3-4 feet behind the ball. The LM is mounted to the ceiling directly above the ball. Total: 10-12 feet.
The catch: You need ceiling height. Overhead units need 9-10 feet of clearance for the camera to see the full swing and ball flight. At 8 feet, the camera cannot see enough ball flight to calculate spin accurately.
Units that work: Uneekor Eye XO ($5,999), Uneekor Eye XR ($5,499), Foresight Falcon ($7,999), GOLFZON Wave ($4,995).
The gotcha: The ceiling mount needs to be solid. The LM weighs 5-10 pounds. If the ceiling is drywall with no stud where you need to mount, add a mounting plate or brace. Do not trust drywall anchors with a $6,000 launch monitor.
The real-world example: A basement with 10-foot ceilings. Ball 7 feet from the screen, stance 3 feet behind the ball. Uneekor Eye XO mounted to the ceiling 2 feet behind the ball. Total depth: 10 feet.
Depth by Room Type
Here is how the depth math works out for the most common room types.
Two-car garage (20x20). You can use any launch monitor type. For radar, 20 feet gives you 8 feet of ball flight, 3 feet of stance, 8 feet behind for the LM, and 1 foot of buffer. The enclosure frame takes 1 foot, leaving 19 feet of usable depth. Plenty of room.
One-car garage (10x20). Same depth as a two-car garage. Width is the constraint. Any launch monitor type works for depth.
Finished basement (12x14 to 14x18). A 14-foot basement works for camera units only. Radar needs 18 feet at minimum. An 18-foot basement works for radar if you optimize: ball at 6 feet, stance at 2 feet, LM at 8 feet behind. Total: 16 feet. You have 2 feet of buffer. But if the enclosure frame takes 1 foot and a duct takes 6 inches, your usable depth drops to 16.5 feet. Tight for radar.
Spare bedroom (10x12 to 12x12). Camera units only. A 12-foot room gives you 8 feet ball flight, 3 feet stance, 1 foot buffer. Tight for camera but functional with a SkyTrak+ or Square Golf Omni. Radar does not fit.
Living room (12x16 to 14x20). Works for radar if you move furniture. Usable depth is whatever is left after the couch is pushed back.
Dedicated new construction. Give your contractor 18 feet of clear depth and 10 feet of ceiling height. This fits any launch monitor with room for seating behind the hitting area. The enclosure frame takes 1 foot, leaving 17 feet of usable depth.
Where to Place the Ball
Ball position is the lever you pull to make depth work. Move the ball closer to the screen and you get more room behind. Move it farther and you get better image quality.
Closer to the screen (6-7 feet): The ball returns faster on high-speed shots. The field of view is narrower. The benefit is more room behind the ball for the LM or stance.
Farther from the screen (9-10 feet): The ball flight looks more realistic. The image fills more of your peripheral vision. The tradeoff is less room behind the ball.
The standard: 8 feet balances ball flight tracking, image quality, and safety. Push it to 7 feet if you need depth for a radar LM. Push it to 10 feet if you have a camera LM and want the best image.
| Ball to Screen | Stance | Behind Player | Total Depth | LM Type |
|---|---|---|---|---|
| 6 ft | 2 ft | 8 ft | 16 ft | Radar (tight) |
| 7 ft | 2 ft | 8 ft | 17 ft | Radar (standard) |
| 8 ft | 3 ft | 8 ft | 19 ft | Radar (comfortable) |
| 7 ft | 3 ft | 1 ft | 11 ft | Camera (standard) |
| 9 ft | 3 ft | 1 ft | 13 ft | Camera (comfortable) |
| 10 ft | 3 ft | 1 ft | 14 ft | Camera (ideal) |
| 6 ft | 4 ft | 1 ft | 11 ft | Overhead (standard) |
| 8 ft | 4 ft | 1 ft | 13 ft | Overhead (comfortable) |
How the Enclosure Frame Changes the Math
The enclosure frame is the thing people forget to account for. The frame sits between the screen wall and the screen. It takes up 6-12 inches of depth.
DIY EMT conduit frame: 6 inches of depth. The screen attaches to the front of the frame.
Carl’s Place DIY kit: 8-12 inches of depth. The screen bungees to the front face.
SIG10 premium enclosure: 12 inches of depth. The screen is recessed inside the frame.
Retractable screen (G-TRAK): 18-24 inches of depth. The housing mounts to the wall or ceiling.
If your room is 14 feet deep and your Carl’s Place frame takes 10 inches, your usable depth is 13 feet 2 inches. That is still enough for a camera unit but not for radar. The frame depth matters most at the margins — the difference between 14 and 13 feet is the difference between works and barely works.
The Decision Tree
Depth is the dimension where you need to make a choice. You either have a deep room (16+ feet) and can use any launch monitor, or you have a shallow room (10-14 feet) and need a camera-based or overhead unit.
If you have a 12-foot room, do not buy a Garmin R10. I have seen this exact scenario play out on the forums a hundred times. Someone buys a radar unit because it is cheaper, sets it up in a 12-foot room, and spends six weeks trying to get consistent readings. The answer is always the same: you need a camera unit.
If you have a 14-foot room and want to use radar, you can make it work by pushing the ball to 6 feet from the screen and the LM to 8 feet behind. But you have zero margin. Any misalignment or furniture in the way breaks the setup. You are better off with a camera unit and 14 feet of space.
If you have a 20-foot garage, you have the ideal depth. Use whatever launch monitor you want. The depth is not your constraint.
Measure your room depth from the screen wall to the opposite wall. Subtract the enclosure frame depth. If the result is 13 feet or less, buy a camera-based launch monitor. If it is 16 feet or more, you can use radar. If it is 14-15 feet, camera is still the better choice — the radar margin is too tight.
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