If you’re new here, this is the orientation I’d want on day one — the shortest honest path from “I want a golf sim” to a build you won’t regret by February.
Measure the room before you love a monitor
Every failed sim build I’ve seen — including my own early mistakes — started with falling for hardware before measuring the space. Ceiling height kills more sim dreams than budget does. The working minimum for a full driver swing is about 9 feet, 10 to be comfortable, and you verify it the boring way: your longest club, your actual swing, slow-motion first, in the actual spot. Then depth: you need room for you, the ball flight to the screen, and the screen’s offset from the wall — radar units like my Garmin R10 want several feet of ball flight to read well indoors, while photometric units measure at impact and tolerate tighter rooms. The room decides your launch monitor category before any review does.
The buying order that protects your money
After years of building and rebuilding this space, my standing rule: room first, mat and containment second, launch monitor third, projection last. A quality mat protects your wrists and your data honesty at the same time — a board-hard budget mat teaches you to flinch. A proper net or impact screen is a safety system, not an accessory. And the difference between a $600 and a $6,000 launch monitor is mostly about which numbers you can trust, not which screen looks prettier — entry radar gives you carry and ball speed you can practice with all winter. Projection is the glamour purchase, and it’s last for a reason: a net, a mat, and a tablet showing real numbers is already a golf simulator.
What to read next
Take it in this order: the sim builds page for the build tiers and what each actually costs, the room size checker to test your space against your height and longest club, the guides for monitor comparisons and build walkthroughs, and the glossary when you hit a term like spin axis or screen offset.
One promise
No showroom glamour here. I built my enclosure with my own hands, fought my projector into alignment, and run my launch monitors against the same swings before writing a word about either. The winters in Sweden are long — the practice data is real, and so are the mistakes I left in the build logs for your benefit.