How to Build a Golf Simulator in Your Garage, Step by Step

A garage is the most common place to build a simulator, and it is also full of obstacles that a spare room does not have: a door on tracks, an opener in the ceiling, bare concrete, no heating and a car that needs a home. This plan walks through the build in the order that avoids rework. Treat it as a checklist, not a guarantee, because every garage is different.

The nine steps at a glance:

Step	Decide	Common trap
1. Measure	Bay width, length and height at the hitting spot	Measuring at the wall instead of where you stand
2. Ceiling	The lowest door track, opener, pipe or light	Forgetting the door tracks
3. Layout	Net, enclosure or retractable screen	Overlapping the car’s footprint
4. Power and network	Outlets, circuit, cable runs	Outlets only at floor level behind the mat
5. Lighting	Indirect, dimmable, flicker-free LED	Harsh shadows on the ball
6. Floor	Mat on cushion over concrete	Skipping the underlay
7. Screen	Enclosure, screen and projector position	Projector in the swing path
8. Climate	Heat, cold, damp, security	Electronics left in a freezing garage
9. Test	Swing every club before finishing	Finishing the walls first

Step 1: Measure the bay

Shop Indoor Golf’s garage page gives starting sizes. A mat-and-net setup fits in about 10 ft wide by 10 ft long by 9 ft high. Its SkyTrak SIG10 enclosure recommends 11 ft wide by 16 ft long by 9 ft high, and it says to add 6 ft of length when you include a projector with a SIGPRO enclosure. Its SIG8 needs only 9 ft of total width.

For a full projector bay, the room-size tables are the better guide. Carl’s Place builds depth as 1 ft behind the screen, 10 to 12 ft from the ball to the screen and 4 to 7 ft behind the golfer, which gives 15 ft minimum and 18 to 20 ft recommended. The full numbers are in the room-size guide.

Measure at the hitting spot, not at the wall. Golfbays advises measuring three times, ceiling at the hitting position and width at shoulder height.

Step 2: Find the lowest thing in the ceiling

In a garage the ceiling surface may not be the limit. The door tracks, the opener rail and any lights can hang lower than the joists. Measure to those. Carl’s Place says to map the lowest obstruction in the swing zone, and the same logic applies to a garage.

Then compare that height to your swing. The ceiling-height page shows how to mark your longest club’s arc and add 6 to 9 inches. Remember that the mat takes 2 to 3 inches.

Step 3: Pick the layout

Draw the bay on paper before you buy anything. Include the screen, the tee, the space behind the golfer and the buffer behind the screen. Shop Indoor Golf says the screen should sit 12 to 16 inches from the wall behind it, and Carl’s Place says at least 12 inches.

Decide where the car goes. A fixed bay means the car lives elsewhere. A retractable one means more work each time. Shop Indoor Golf describes the G-Trak retractable screen as attaching to the existing garage door rails and retracting for storage, though it gives no door dimensions, so confirm the fit with the seller.

Step 4: Power and network

Equipment draw is roughly 2,000 to 2,500 W, according to Golfer’s Authority. With a 20 percent margin it recommends planning for about 3,000 W and using a dedicated 20 A, 120 V circuit. One simulator maker’s manual calls for a dedicated 15 A circuit, so confirm what your equipment’s maker says.

Do not rely on a guide for this step. A qualified electrician should confirm circuit capacity, grounding and surge protection and tell you whether your town needs a permit. Golfjoy also advises putting outlets near the control station and the projector mount rather than only at floor level behind the hitting area.

Plan the network at the same time. If WiFi does not reach the garage, Shop Indoor Golf suggests an extender, a mesh system or Ethernet. Some monitors need a wired connection. The Uneekor EYE MINI LITE, for example, is listed as Ethernet only. Run cables before any wall or ceiling is closed.

Step 5: Lighting

Shop Indoor Golf recommends uniform, indirect, flicker-free LED lighting that can be dimmed, with natural light cut down by shades. Flicker matters because cameras read it. If you use a projector, a darker room gives a brighter, cleaner image, as Carl’s Place notes for basements, and a garage with windows or a door window will need blocking.

Step 6: Floor

A garage slab is hard and cold. Golfer’s Authority suggests 1.5 in foam board or 2 to 4 in rubber mats under the hitting mat, with 5/8 in gym mats as a budget option. Shop Indoor Golf lists landing pad turf and golf simulator flooring as upgrades for a stable base. The full layering and joint advice is in the flooring guide.

Mats for sim use start from $399 for a SwingTurf mat and $499.95 for the Carl’s Place HotShot mat. Sellers say foam under the turf protects joints, but no independent test links foam thickness to injury, so treat that as general advice, not medicine.

Step 7: Screen, enclosure and projector

An enclosure gives you the frame, screen and side panels in one kit. Carl’s Place’s DIY enclosure kit starts from $999.95, and the SIG8 package with an MLM2XPRO is $2,899.99. The DIY enclosure guide covers frames, fabric and padding.

Keep the projector out of the line of fire. BenQ says to mount a short-throw projector on the target line 7 to 8 ft from the screen to avoid ball strikes; the projector setup guide has the other mounting options. For brightness, PlayBetter says 3,000 or more lumens suits bright spaces such as garages.

Step 8: Climate and security

Shop Indoor Golf says to protect electronics from extreme cold or heat and to consider AC or heating, though it gives no range. BenQ suggests insulating the walls and door, hanging thermal curtains and using portable heaters. Humidity and condensation can matter more than cold. Keep the launch monitor and laptop indoors between sessions and run a dehumidifier if the garage is damp.

Shop Indoor Golf also advises cameras, locks and an alarm for expensive gear.

Step 9: Test before you finish

Do a slow-motion swing test with your longest club on the mat in the final position. Check that no one stands in the swing circle, that the screen has soft edges and padding, and that children and pets stay out of the room while someone is hitting. Ball rebound and ceiling strikes are real, so pad hard edges and keep the screen taut. Then calibrate the monitor and run a few shots before you trust any numbers.

What it costs

A mat-and-net start is the cheapest path. Rain or Shine’s Garmin R10 practice bundle starts from $1,599 and its Mevo Gen2 practice bundle from $2,149. Carl’s Place’s Ready-to-Golf Garmin R10 Bundle starts from $4,995 and adds a DIY enclosure with an impact screen; its listing says the projector and mat may be extra. Add electrical work, flooring, a PC and software on top. See the garage picks and the small-room picks for products matched to different bays.

Run the numbers

Step one is the measurements: the room size calculator checks them against common guidance, the projector calculator places the projector, and the cost calculator keeps the budget honest.