The Quick Verdict
Get the SIG12 Simulator Enclosure. It's $495.01 less at list, the screen is a known size (11'5" × 8'7", 14'3" diagonal), and the screen, surround, foam padding and frame poles all come in the box — though you won't know from The Indoor Golf Shop whether your room can handle it. The Net Return Simulator Bay 12 is worth the extra for anyone who needs a firm answer on the room before buying: it's the only one of these two that tells you exactly what you need — 14 ft wide, 9 ft ceiling, 14 ft deep. Check price at The Indoor Golf Shop →
What They Have in Common
Both are 12-ft-wide enclosures. Both include the screen, side barriers and frame hardware in the base price. Both are rated for 250 mph ball speed. Neither publishes a weight or a stored size, and neither states a setup time.
Where They Differ
Room Requirements
This is the most important thing on the page, and one maker answers it while the other doesn't. The Net Return publishes the room the Simulator Bay 12 needs: 14 ft wide, 9 ft ceiling, 14 ft deep. Measure those three things before you order. The Indoor Golf Shop publishes no room requirement for the SIG12 — they note on their site that you may need more than a 10 ft ceiling, and that's where the guidance ends. The SIG12's frame footprint is 12 ft 2 in × 9 ft 4 in × 5 ft, but a frame's footprint is not the room a swing needs, so don't use it as one.
If you're measuring a low garage and need a hard number, the SIG12 doesn't give you one.
Screen Size and What's Published
The SIG12 has a concrete screen spec: 11 ft 5 in wide by 8 ft 7 in tall, 14 ft 3 in diagonal. That's a figure you can plan around. The Simulator Bay 12 publishes the frame dimensions — 12 ft wide, 8 ft 6 in tall, 3 ft 6 in deep — but The Net Return doesn't publish the screen's own dimensions, only that a floating super white HD screen is included. If the screen size matters to your setup, the SIG12 answers it and the Simulator Bay 12 doesn't.
Frame Footprint
The SIG12's frame is wider, taller and deeper than the Simulator Bay 12's. The SIG12 runs 12 ft 2 in wide, 9 ft 4 in tall and 5 ft deep; the Simulator Bay 12 is 12 ft wide, 8 ft 6 in tall and 3 ft 6 in deep. Both depths are published — what the difference means for your specific room is your calculation to make.
Warranty
The Net Return covers the Simulator Bay 12 for 3 years on its nets and 1 year on its screen. The Indoor Golf Shop gives the SIG12's SIGPRO Premium screen 1 year residential. On the screen — the part both enclosures have — the two land in the same place. The Bay 12's extra coverage is on its netting, which the SIG12's published warranty doesn't mention.
Price
The SIG12 lists at $2,499.99. The Simulator Bay 12 lists at $2,995 — a $495.01 gap at list.
Who Should Buy Which
Get the SIG12 Simulator Enclosure if:
- You want a larger screen with published dimensions for projector planning
- $495.01 at list is meaningful and the room question is something you're comfortable sorting out yourself
- You've already confirmed ceiling clearance independently and the 1-year screen warranty is acceptable
Get The Net Return Simulator Bay 12 if:
- You need the maker to publish the room requirement before you commit — 14 ft wide, 9 ft ceiling, 14 ft deep, stated outright
- You want three years of cover on the netting on top of the same one-year screen warranty
- Your room fits those published dimensions and you want the planning work done for you
The Bottom Line
Two 12-ft enclosures at similar list prices, and the gap between them is mostly about information. The SIG12 tells you the screen size; The Net Return tells you the room size. Neither publishes a weight or setup time. On warranty they land in the same place on the screen — one year each — with the Bay 12 adding three years on its netting. My read is that most buyers will find the SIG12's $495.01 savings and published screen dimensions persuasive — as long as they can live without a published room requirement. If that requirement matters to you, it only comes from one of these.