Often carpenters will make quick work of cutting fiberboard sheathing by making their cut marks with a chalkline instead of a carpenter's pencil. Hook the end of the chalkline on one end, hold down the other end, and snap to make the line. The same idea can be used on other sheet material.
Designers recommend placing seats back at least twice the width of your screen, but also a few feet away from the back wall, so you can savor your surround sound. If you don’t want the rest of the house to shake, invest in heavy carpet and padding to absorb sounds. Don’t automatically assume basements are the best place for a home theater (they’re prone to flooding). But if the basement is your only option, don’t run wires or cables along the floor.