Cross Support For Floor Joist

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.

Cross support for floor joist.

You can use cross bracing instead. A joist support is the horizontal beam that supports the floor joists. Solid blocking should be used where floor joists overlap over beams. The joist support helps reinforce the floor so it can handle the weight load it needs to.

In some cases additional joist supports will have to be installed before there can be extra heavy objects on the floor. 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. Providing more support and rigidity than cross bracing solid blocking is a reasonable alternative but can be an obstacle for running plumbing pipes and electrical wire between floor 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. Most decks use 16 on center spacing for joists. Cross bracing or bridging is another system that reinforces a structure of a building just like blocking does. Figure 4 2 x 4 installed below duct work table 1 provides the correct quantity of bridging relative to the span of the floor joist.