Deck Joist To Beam Connection Detail

Nine joists will be needed for the 16 foot width.

Deck joist to beam connection detail.

For the strongest connection of joists to the support beam the joists should sit on top of the beam. Joists may bear on the beam and extend past the beam face up to the lesser of l o or l 4 as shown in figures 1a and 2 or the joists may attach to the side of the beam with joist hangers as shown in figure 1b. That means these joists can span the 12 foot depth of the deck and the beam can be located at the perimeter. See joist to beam connection details figure 6.

I joists installation and handling attaching railing post to a 4x8 beam and flush 2x8 joist deck unit attaching pergola posts to deck beams joists building stronger post to beam. When this system of connections is made properly loads are transferred. A double 2x beam can rest on a notched 6x6 post as shown. Stafford county typical deck detail 9 1 2019 page 9 joist to beam connection each joist shall be attached to the beam in accordance with figure 12.

They are sometimes not required at the header if they rest on a nearby drop beam and you drive nails through the face of the header into the joists. But even in that situation some inspectors will want to see joist hangers. In our photo the 6x6 post was notched to leave a thick component that could be through bolted or lag bolted to the girder. Codes typically call for attaching joists with joist hangers at the ledger.

Deck framing page 16 beam to post page 12 post to concrete page 11 joist to beam page 14 a system of key connections throughout the deck framing also known as a continuous load path is essential to building a safe code compliant deck. For that i want a wood bridge between the beam and the post. The best post beam connection involves notching a cavity into the tops of support posts to set the beams using carriage bolt fasteners see below. Post beam connector hardware are especially useful in situations where notching a post is not practical such as at the intersection of an angled corner of the deck.

The specific detail i use depends on the size of the post the position of the beam and whether the installation is for a new deck or a retrofit. The deck connection and fastening guide provides instructions on how to recognize defects and deficiencies in existing decks and guidance for building strong safe long lasting deck structures. Beam rotation isn t a problem with every post to beam connection though so i plan accordingly. Installation shall be per manufacturer s instructions.

I prefer to double the outside joists as do some deck builders which adds 2 joists for a total of 11. Notching a 6x6 post to support connect to a deck beam.