Masonry Joist Hangers - Timber to Masonry
Masonry Joist Hangers - Timber to Masonry
Masonry joist hangers are used, where masonry walls would meet with the timber floor. Using joist hangers would eliminate the labour extensive work of making holes in the walls. Its not easy to make exact size holes in such walls. Most times, the only masonry walls are on the perimeter of the building, but in some buildings there are masonry internal walls, and to join them with timber floor, masonry joist hangers are used extensively.
Advantages
- For connecting joists to masonry and supporting beams,
- Build into new brick or blockwork,
- For extensions and renovation work,
- Eliminate the need to build around joists or cut holes in facing brick work,
- Can be used for timber to timber applications
Types of Masonry Joist Hangers
- Single Piece Joist Hanger,
- Welded Masonry Joist Hanger,
- Welded Masonry Return Joist Hanger,
- Return Joist Hanger with Adjustable Lock Plates,
- Straddle Welded Joist Hanger
The Single Piece Joist hanger and the Welded Masonry Joist hanger are the traditionally used joist hangers in construction. The back plate of the hanger should lie flat against the vertical masonry support and the flange of the hanger is placed in a dry slot. At least a minimum of 3 courses bricks (675mm) laid above the flange. The masonry is then allowed to mature before any load is applied.
It is possible to use a lock plate to transform the above masonry hangers work as return masonry hangers. such lock plates can be bought separately. This plate is easily be transformed into a hook over joist hanger. No special tools or rivets are required. Just insert Lock Plate at 90, rotate and tap into place.
Welded Masonry Return Joist Hangers are availble in two categories; hanger with fixed return and the hanger with adjustable return plate. The Masonry Return Joist Hangers are designed for similar applications and installation as the standard Masonry Joist Hangers. The return adds additional lateral support by wrapping around the back of the masonry or timber. They have a 25mm drop on the return flange as standard.
Hanger with a fixed return Hanger with an adjustable return
How to install masonry joist hanger with an adjustable lock plate.
Straddle Joist Hanger is actually two hangers joined together by a plate on the masonry flange to enable exact alignment of two joists positioned directly opposite each other on either side of a wall or beam. This plate can be either fixed or adjustable.
