| Ceiling height | 9 ft absolute minimum · 10 ft comfortable for drivers |
| Room depth | 12–16 ft depending on launch monitor type |
| Room width | 10 ft minimum · 12+ ft for left and right handed |
| Ball-to-screen | 7–9 ft for camera units |
| Player-to-screen | 10–12 ft for safe, full swings |
Before you compare a single launch monitor, measure your room. Space is the one spec you can't upgrade, and it silently disqualifies more setups than budget does. Four numbers decide everything: ceiling height, depth, width, and where the unit needs to sit.
The four numbers
Ceiling height: the hard stop
Swing your driver where the bay will go. If the clubhead clears with less than a foot to spare, the room fails — adrenaline and new-grip enthusiasm add inches you don't have on a measured practice swing. Nine feet works for most golfers under six feet tall with careful mat placement; ten feet works for almost everyone.
Depth: where launch monitors live or die
Camera units that sit beside the ball (GC3, EYE MINI) need less total depth than radar units (Mevo Gen2, R10) that sit 7–8 feet behind it and need flight to track. This single difference is why a 12-foot garage runs a GC3 happily and turns a radar unit into a paperweight.
The offset trap
Floor units like SkyTrak sit beside the hitting position, not behind it — which means a narrow room can fit the swing but not the unit. Check the manufacturer's offset diagram against your actual wall-to-wall measurement before falling in love with anything.