For example, Epson suggests that a 120-inch screen should have a projector mounted somewhere between 147 to 160 inches back from the screen or around 12.5 feet. How Far Should a Projector Be From ...

The 120-inch Ayaoqiang Projector Screen is 53% off for a limited time at Walmart. Shoppers say it’s a “truly impressive” way to watch movies outside.

The Hisense laser projector on sale at Best Buy today (PL1 X-Fusion) will create anywhere from an 80-inch screen up to 120-inches. A real home movie theater.