Cross Support For Floor Joist

The joist support helps reinforce the floor so it can handle the weight load it needs to.

Cross support for floor joist.

A joist support is the horizontal beam that supports the floor joists. You can use cross bracing instead. The bigger you make your deck the more you ask of the framing timbers that hold up the deck s structure and the joists and beams that support the. The layout term for joists is on center which is the center to center measurement from one joist to the next.

The difference is that the cross bracing uses two pieces of support in a diagonal shape that creates an x between the joists instead of a solid block in blocking. Most decks use 16 on center spacing for joists. Although not as good as solid or cross bridging a 2 x 4 supporting the duct work as shown in figure 4 would provide more support and load sharing than a light piece of metal. Recommended beam joist spans for deck framing.

Solid blocking should be used where floor joists overlap over beams. Most decking is not strong enough to support longer spans than 16. It should be placed at eight foot intervals between any floor joists 2x10 or longer. In some cases additional joist supports will have to be installed before there can be extra heavy objects on the floor.