The Quick Verdict
Get The Net Return Simulator Bay 8. At $1,995 list versus $2,499.99, it's $504.99 less at list and it's the only one of these two that tells you exactly what room you need — 10 ft wide, 9 ft ceiling, 14 ft deep. The SIG12 Simulator Enclosure is the pick if your space is large enough to take advantage of a much bigger screen and you can live without a published room requirement to measure against before you buy.
What They Have in Common
Both are simulator enclosures with an impact screen, side barriers, and frame padding included in the base price. Both are rated to 250 mph ball speed — on the SIG12 that rating is published for the screen. Neither publishes a weight or a folded storage size, and neither includes turf, a projector, or a launch monitor.
Where They Differ
Room Requirements
This is where the two products diverge most sharply, and it matters before you buy anything else. The Net Return publishes exactly what you need: a room at least 10 ft wide, 9 ft of ceiling clearance, and 14 ft of depth. You can pull out a tape measure right now and know whether this enclosure fits your space.
The Indoor Golf Shop doesn't publish a room requirement for the SIG12. The shop notes that you may need more than a 10 ft ceiling — but no width, no depth, and no floor-to-ceiling minimum is stated. The SIG12's frame is 12 ft 2 in wide, 9 ft 4 in tall, and 5 ft deep, but a frame's footprint is the enclosure's structure, not the room a full swing needs. Those aren't the same number. If the room is what you're trying to figure out, the SIG12 leaves you on your own.
Size and Screen
The SIG12 is wider, taller, and deeper than the Simulator Bay 8. Its frame spans 12 ft 2 in wide versus 8 ft wide for the Bay 8 — 4 ft 2 in more frame width. The SIG12's SIGPRO Premium screen measures 11 ft 5 in wide by 8 ft 7 in tall, with a 14 ft 3 in diagonal. The Net Return doesn't publish a screen size for the Bay 8, only the frame dimensions, so there's no screen-to-screen comparison to make.
If image size is the priority, the SIG12 is the one you can size up before it arrives.
Price and Warranty
The Net Return Simulator Bay 8 lists at $1,995. The SIG12 lists at $2,499.99. That's a $504.99 gap at list. The Bay 8's cover splits: 3 years on the nets, 1 year on the screen. The SIG12's warranty is 1 year, residential, on the SIGPRO Premium screen — the scope of coverage on the rest of the enclosure isn't stated. So the screens match at a year, and the Bay 8's extra three years sit on the netting.
One other thing worth flagging: The Indoor Golf Shop's own published data gives two different depths for the SIG12, 5 ft on the product page and 16 ft in their store data. I'd confirm that before ordering.
Who Should Buy Which
Buy The Net Return Simulator Bay 8 if:
- Your room is tight and you need a published minimum — 10 ft wide, 9 ft ceiling, 14 ft deep — to know whether this fits before you spend anything
- You want 3 years on the netting on top of the same 1-year screen cover the SIG12 gives
- You'd rather save $504.99 at list and put it toward turf, a projector, or a launch monitor
Buy the SIG12 Simulator Enclosure if:
- You have a large dedicated space and want the biggest screen you can get — the 14 ft 3 in diagonal and 11 ft 5 in × 8 ft 7 in hitting area are the published numbers for the larger setup
- You're comfortable measuring your ceiling against the 9 ft 4 in frame height yourself and accepting that the actual swing clearance needed isn't published
- The extra width and image real estate matter more than the warranty length or the price gap
The Bottom Line
The room question is the one thing every simulator buyer is trying to answer before they pull the trigger. The Net Return Simulator Bay 8 answers it. The SIG12 Simulator Enclosure doesn't, and its own data has a depth discrepancy worth sorting out with the retailer. The Bay 8 is also $504.99 less at list and carries a 3-year warranty on its netting. If the SIG12's larger screen is genuinely the priority and you've got the space to verify it fits, it's worth considering — but you'll be doing that room math yourself.