Will a simulator actually fit your room?

The most expensive mistake in a home sim is buying the launch monitor first and worrying about the room afterwards. It should be the other way round. Your space sets hard limits on what you can swing and what can read your ball — and once you know your three dimensions, the list of units that'll actually work in your room often shrinks to a handful. Measure first; shop second.

Three numbers decide it: ceiling height, depth and width. Take them in turn.

Ceiling height — the dealbreaker

Height is the constraint that most often rules a room out, because it's the one you can't negotiate with — either your club clears the ceiling at the top of the swing or it doesn't. Most adults need around 9 feet of clear height for a full driver swing; taller players, and anyone with a steep, upright action, want closer to 10. The honest test is to take your own driver and make a slow full swing against a wall, then measure how high the clubhead reaches. Do that before you spend a penny.

If your height is tight — a garage at 8 feet, say — you're not necessarily out. Plenty of golfers run a sim with a slightly shortened backswing, and the data is still useful for practice. But know that going in, rather than discovering it after the screen is up.

Depth — and why it picks your launch monitor

Depth is the front-to-back distance from the screen to the back of the room, and it's the dimension that decides the radar-versus-camera question more than anything else.

A radar unit like the FlightScope Mevo+ sits behind you and tracks the ball through a stretch of its flight to gather data. That means it wants real depth — typically several feet of clearance behind the ball and a healthy distance up to the screen, so the radar has flight to read. Starve it of depth indoors and its accuracy suffers, which is exactly why radar shines outdoors and at the range.

A camera (photometric) unit like the SkyTrak+ sits beside the ball and photographs it at the instant of impact. It doesn't need the ball to travel, so it needs very little depth — which is why camera units are the standard answer for shallow indoor bays. If your room is short, a camera unit is usually the only category that will work well, and that's worth knowing before you fall for a radar unit's spec sheet. Our small-room ranking is built around exactly this constraint.

Width — room to swing

Width is the most forgiving of the three, but it still matters. You want enough side-to-side room to swing freely without flinching away from a wall, plus space for the enclosure frame around the hitting area. Around 10 to 12 feet is comfortable for most players and lets a right- and a left-hander share the same bay from opposite sides. You can build narrower for a single-hander, but tight width makes every swing feel cramped and quietly raises the chance of clipping a wall mid-downswing.

Making it work in the space you've got

Most home sims end up in one of three rooms, and each has its own catch:

• Garage. Usually plenty of depth and width, but height is the question — many garages sit near 8 feet. If yours is taller, it's often the ideal room; if not, a shortened swing or a different room may be needed.
• Basement. Often the opposite problem — good footprint, but low ceilings and ductwork that eats into your clear height. Measure to the lowest obstruction in your swing path, not the highest point of the ceiling.
• Spare room. Frequently shallow, which pushes you firmly toward a camera unit. Width and height are usually fine; depth is the thing to check.

Whatever the room, the order is the same: measure your three numbers, let them narrow the launch monitors that fit, then choose from what's left. The buying guide walks through the rest of the stack, and the overall ranking scores every product on the same four factors once you know what your space allows.