100 vs 120 Inch Projector Screen: Which Size Fits a UST Setup?
Compare 100-inch and 120-inch UST projector screens by image width, seating, furniture footprint, projector placement and floor-rising case size.
A 120″ 16:9 image is about 17.4 inches (44.3 cm) wider than a 100″ image. That sounds modest until you add the wider screen case, the projector’s changed throw distance and the furniture needed to support the system.
| Dimension | 100″ | 120″ |
|---|---|---|
| Approx. image width | 87.2″ / 221.4 cm | 104.6″ / 265.7 cm |
| Approx. image height | 49.0″ / 124.5 cm | 58.8″ / 149.4 cm |
| Room feel | Large but easier to integrate | More cinematic, more demanding footprint |
| UST placement | Usually closer / more compact | Usually requires more projector offset |
Choose 100″ if...
- The room is multipurpose and furniture width is limited.
- Your seating is relatively close.
- You want easier placement and transport.
Choose 120″ if...
- You have enough wall and case width.
- Your projector supports the size at a workable throw position.
- You sit far enough back to enjoy the extra field of view.
S Pro P relevance
The Vividstorm S Pro P is offered in both 100 and 120″ on the linked merchant page, with 110″ as a useful middle step if 120″ creates placement problems.
Vividstorm S Pro P
72–120″ options at the linked merchant; 0.6 gain, 170° published viewing angle, floor-rising motorized design and perforated lower border.