Triple Joist Timber Floor Definition

Double and triple joist hangers are wider to accommodate either a thicker piece of lumber or two or three joists placed side by side.

Triple joist timber floor definition.

Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor. This is the simplest type of timber floor used for residential buildings where spans are short or moderate say up to 4 m and loads are comparatively lighter. But larger is not always better when builders are constructing a home or adding a room addition. Double and triple joist hangers.

The main reason for doubling up floor joists is to double the strength of a single floor joist. Single joist timber floors. Framed or triple joists timber floors. In these cases the joist hangers will be 4.

This allows you to install a supporting post off the double floor joist to hold a second storey or a. With all joined timbers supported by fully nailed proprietary joist hangers. Why would you use a double floor joist. Most floor joists consist of 2 by 6 inch lumber but they can use 2 by 8 or 2 by 10 as well which will require longer joist hangers.

Around floor openings such as stairs it will be necessary to install larger or double triple timber trimmers bolted together to carry the floor joists see guide leaflet 6 for information.