Category Framing

7. Start second row with half sheet so ends will be staggered.

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Six Steps for Setting First Sheet of Sheathing

2 x 4 wall

Block

One 16d nail per joist

Studs

Double if longer than 4′.

If longer than 6′, support with framing anchors or hangers.

Tail joist

If joists lap over an interior wall, they can be rough-cut approximately two inches beyond the wall. Do not let lapped joists go more than six inches beyond the wall.

Joist spread and marked, ready to cut

This chapter illustrates the basic sequence for floor framing. Straight cuts and tight nailing make for a neat and professional job. Pay particular attention to the corners. It is important that they stay square and plumb up from the walls below, so the building does not gain or lose in size. Also pay close attention to laying the first sheet of subfloor sheathing. If it is laid straight and square, the entire subfloor will go down easily and you can avoid making extra cuts.

If you make a sloppy start on the first sheet, you’ll struggle to make each sheet fit, you’ll waste valuable time, and you won’t be proud of the results.

Step 1-Crown & Place Joists

Spread joists so crowns are in the same direction. The crown is the highest point of a curved piece of lumber.

If the joists are resting on a foundation instead of a stud wall, then a sill plate, or mudsill, would be attached to the foundation, and the joists would rest on the plate or sill.

Look for crown

Mark joist crown up

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Joist

Double plate

Stud

Two nails at 24" O. C.

Fascia

Framers (and the eventual homeowner) like to have the roof installed as soon as possible. The roofing provides a dry workspace and protects all the installed framing from the weather. Be careful not to leave hammer head marks in the fascia, since it is a finish product.

Two 16d or 3” x,131" nails on the end of each joist,

Nail Trusses to Wall

Nail Rafters to Wall

Nail Blocks

Nail Joist Blocking