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Trans 1) Deck Overview Trans
2) Materials & Tools
3) Preparing Siding for Ledger Board
4) Preparing Ledger Board
5) Attaching Ledger Board
6) Digging Footings & Pouring Concrete
7) Cutting & Raising Posts
8) Installing Beams
9) Installing Joists
10) Installing Deck Boards
11) Building Stairs
12) Installing Railings

Installing Joists

Flush Beam After finishing the beams and rim joists, and squaring those up, measure the rest of the joists, cut them and set them in place.

On a flush beam, slide them into the joist hangers. Secure them by nailing through the holes in the joist hangers into the joists.

TIP: If they're stubborn going in, tap them with a hammer to push them down into the hangers, which are sometimes tight.

But if they're tight against the beam or ledger board, don't force them in because that could actually push your posts out of plumb. Instead, cut a little off the ends of the stubborn ones to make them fit.

 

Checking for Crown

Checking for Crown Dimensional joists are never perfectly straight. They almost always bow or arc slightly toward one side. That bowing is known as the crown.

 

TIP: Before installing your joists, check each one by sighting down the edge and mark the side that's crowned. Then make sure that side is up when you install the joist.

That way the joists will all be slightly high in the center and will slowly sag back towards level as the deck ages, rather than starting out low in the center and sinking even further over time.

 

Installing Joists over Dropped Beam

Installing Joists over Dropped Beam Mark out the joist positions on the top of a dropped beam to match the layout of the joist positions on the ledger board.

Measure, cut and set the joists in place on top of the dropped beam.



Dropped Beam

deck joist clipsToenail through the sides of the joists down into the beams to hold them solid. You might also consider using a connector called a “hurricane tie” (we sometimes call them “joist clips”) to strengthen the connection where the joist crosses the beam.

With a dropped beam, you can also cantilever the ends of the joists up to a couple feet beyond the beam. That makes the beam a little less conspicuous. Check with local building officials to see how far they allow joists to cantilever past a beam.

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