300 Inch Projector Screen: Dimensions & Buying Guide
Dimensions
| Diagonal | 300" |
|---|---|
| 16:9 (widescreen) | 261.5" W × 147.1" H |
| 4:3 (standard) | 240" W × 180" H |
Dimensions are calculated from the diagonal using standard aspect-ratio geometry (Pythagorean theorem), not a manufacturer spec sheet. Confirm exact viewable area for a specific product on its own product page.
Suggested Viewing Distance
As a general guideline (not a manufacturer spec), a comfortable viewing distance for this size is roughly 32.7–54.5 feet from the screen, measured at 16:9. For projector placement, use the Screen Calculator, which also works out throw distance from your projector's throw ratio.
SPS Acmera Screens in This Size
Frequently Asked Questions
How wide is a 300" projector screen?
At 16:9, a 300" diagonal screen is approximately 261.5" wide by 147.1" high. At 4:3 it's approximately 240" wide by 180" high.
How far should I sit from a 300" screen?
As a general guideline, a comfortable viewing distance is roughly 1.5 to 2.5 times the screen width — for this size, approximately 32.7 to 54.5 feet. Content type and projector resolution shift this range.