Over Joist Attic Decking

Standard joist spacing for the installation of attic flooring materials is 16 inches on center oc meaning the distance from the center of one joist to the center of the next joist is 16 inches.

Over joist attic decking. Attach metal covers to electrical junction boxes and move any electrical wires out of the way or notch the frame to fit. Build a frame on 16 centers perpendicular to the attic floor joists. Here s how to go about it. Place the sheets of plywood so that the edges of each board ends at the center of the floor joists with a 1 8 inch gap between adjacent boards on the same joist to allow for wood expansion.

Redesigned to fit either 16 or 24 on center joist spacing supports up to 250 lbs making it easier than ever to get those cluttered spaces organized. Installing flooring material over the attic doesn t quite leave room for the recommended insulation space needed to provide efficient home energy. Screw the frame to the joists to. Cut 2 thick lumber to length for the frame.

Place a 2 inch by 3 inch board directly on top of the joist nearest to the edge of the attic with its largest. Attics that have no flooring unless expressly built so an attic s joists are meant for carrying the load of the ceiling below and related elements collectively known as the dead load. Attic flooring panels are easy to install with their interlocking edges. Joist spacing and attic use the joist spacing in some attics is 24 inches and 1 2 inch sheets will sag and possibly break when spanning that distance.

A raised platform of lumber in dimensions of 2 4 or 2 6 with insulation placed between joists and covered up with a 12 inch plywood helps build the right flooring. Attic dek flooring provides additional storage space that supports up to 250 pounds making it easier than ever to get those cluttered spaces organized. You need 3 4 inch plywood. Walk to one end of the attic by carefully stepping only on the wooden ceiling joists.

A single 4 pack covers approximately 10 sq.