Floor Joist Beams Supports

Joists also may get support from beams located at or near the middle of the joist span.

Floor joist beams supports.

So we now have adequately sized floor joists and an adequately sized floor joist beam for our 24 x 13 house. The joist support helps reinforce the floor so it can handle the weight load it needs to. This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction. Our floor joist beam can span a maximum of 13.

Moving from beam calculations to beam supports. Considering the cross section of a typical joist the overall depth of the joist is critical in establishing a safe and stable floor or ceiling system. Floor joists or beams provide the below surface support for the wood subfloor of a room. In some cases additional joist supports will have to be installed before there can be extra heavy objects on the floor.

In many countries the fabrication and installation of all framing members including joists must meet building code standards. A joist support is the horizontal beam that supports the floor joists. Though joists may be any size that you desire using typical floor joist and beam specifications ensures that you can find hardware to fit the joists and that the floor provides adequate support for furniture and other items in a room. This beam supports the floor joists of the house s ground floor.

True floor joist span calculations can only be made by a structural engineer or contractor.