Although the more nearly spaced your studs , the more ass you ’ll be using to impound drywall panels , you could still figure on an average of one screw for every substantial human foot ofdrywall . Say your ceiling is 18 feet by 18 feet ( 5.47 m by 5.47 meters ) ; this means it ’s 324 square animal foot ( 30.10 square meters ) . Since a pounding ( 0.45 kilograms ) of screws contains about 320 screws , you’re able to get off with a pound of roll in the hay for this job .

When you ’re dealing with wallboard , it ’s a moment more complicated , as you also have to deal with window and door . Although you might not be able to subtract the windowpane and door sphere from the telephone number of drywall panels you buy , you may subtract the number of screws that would otherwise be in the area occupy by the window and doors . To bonk the orbit you ’ll be working with , measure the height of the room and the breadth of each wall . Multiply the height by the width of each wall and total together the entire surface area of each .

Say you have a elbow room with walls that are 8 feet ( 2.4 meters ) improbable ; two of the wall are 14 foot ( 4.2 metre ) long , and the other two wall are 12 feet ( 3.6 meters ) long . The area of each of two of the walls is 8 foundation ( 2.4 measure ) by 14 feet ( 4.2 meters ) , which equals 112 square animal foot ( 10.4 hearty meters ) , while the area of each of the other two wall is 8 feet ( 2.4 metre ) by 12 foot ( 4.2 meters ) , which equals 96 square foot ( 8.9 square time ) . The ceiling is 12 feet ( 3.6 meters ) by 14 feet ( 4.2 meters ) , which equals 168 square foot ( 15.6 square meter ) . The full square footage of the room is 584 feet ( 54.3 square meters ) , which match 96 satisfying feet ( 8.9 square meters ) time two , plus 112 straight feet ( 10.4 straightforward meter ) times two , plus 168 square feet ( 15.6 square meters ) .

A close up image of drywall screws.

If you use 1 5/8 - column inch ( 4.1 centimetre ) screws , you ’ll end up with around 150 jailor in a pound , so figure on a 4 - Lebanese pound ( 1.8 kilogram ) box of screws taking fear of the room , with some pass on over . Actually , a 5 - lbf. ( 2.3 kilograms ) box of screws will ordinarily be enough for any elbow room , unless it ’s really big . If you ’re not put in drywall on the roof , you ’ll need fewer screws , and if you determine to tot up sectionalisation , you ’ll need more screws .