Galvanised Single Piece Masonry Joist Hanger Box of 10
SKU: MH-1
Category: Builders Metalwork
Tags: building, content-updated, galvanise, hanger, masonry, piece, single
Brand: Discount Trade Supplies
From £18.90£22.68 EX VATINC VAT
Single piece galvanised masonry joist hangers for supporting timber joists from brick or block walls. Straight top flange, no welds, pre-galvanised for corrosion resistance. Available in a wide range of sizes. Sold in boxes of 10.
| Size | Price | QTY |
|---|---|---|
| 47 x 100mm | £18.90£22.68 | |
| 47 x 125mm | £19.46£23.35 | |
| 47 x 140mm | £19.96£23.95 | |
| 47 x 165mm | £20.98£25.18 | |
| 47 x 190mm | £22.98£27.58 | |
| 47 x 215mm | £23.98£28.78 |
Total:
£0.00
These galvanised single piece masonry joist hangers are designed to support timber joists directly from brick or block walls, providing a clean, reliable connection without the need for welded construction. The straight top flange sits flush into the mortar course as the wall is built, transferring the joist load directly into the masonry. If you need a masonry joist hanger that installs quickly and holds properly, this is the standard product used on brick and block builds across the UK.
Each hanger is pressed from pre-galvanised steel in a single piece, so there are no weld points to corrode or fail over time. The galvanised finish provides good corrosion resistance for use in standard internal and sheltered external conditions, which is exactly where these hangers spend most of their working life: first-floor and ground-floor joist installations in new build and renovation projects.
Masonry Joist Hanger Sizing: What to Know Before You Order
The range covers a wide spread of sizes, from 47mm wide right up to 150mm wide, and from 100mm to 215mm in depth. That covers most standard timber joist profiles you will encounter on a typical build.
One important detail worth knowing: hangers with a depth of 150mm or more are manufactured 10mm shallower than the nominal size. This allows for notching and accommodates regularised timber, which tends to run slightly undersized compared to its stated dimensions. If you are ordering for 150mm deep joists, for example, the hanger depth accounts for this already. It is a small detail that catches people out if they are not expecting it, so worth confirming before you fix anything in place.
Straight Top Flange Design
The straight top flange is built into the masonry course as the wall goes up, rather than being nailed or bolted on afterwards. This means the hanger needs to be in the correct position before the brickwork reaches that course level. Planning the joist layout before the walls are too far up is essential, which is obvious in theory and occasionally forgotten in practice.
Because these are single piece hangers with no welded joints, they behave consistently across the range. There is no weak point at a fabrication join, and the pre-galvanised steel holds up well against the alkaline environment of mortar and block work.
Each box contains 10 hangers in your chosen size. If you are fitting out a floor or a series of joist bays, ordering by the box keeps things straightforward. Most joist layouts will need a hanger at each end of each joist, so a quick count of your joists tells you exactly how many boxes to order. The masonry joist hanger is one of those products where under-ordering on site costs more time than it saves money, so rounding up by a box is rarely a bad call.
Pro Tip: Always set your masonry joist hangers into the mortar bed as the course is laid, rather than trying to bed them in afterwards: the flange needs full mortar contact to transfer the load correctly, and retrofitting into a completed wall rarely achieves the same bearing.
Galvanised single piece masonry joist hangers are used wherever timber floor or ceiling joists need to bear onto a brick or block wall. They are standard on new build residential projects, domestic extensions, and structural renovation work where the joist line meets a masonry leaf. Groundworkers and bricklayers build them into the wall during construction, with joiners following up to drop the joists into position once the courses are complete.
They are also used in commercial light construction, barn conversions, and agricultural buildings where timber-framed floors meet block or brick perimeter walls. Any situation where a joist hanger needs to be built into the masonry rather than face-fixed to a timber or steel member is where this product applies.
Best For
- Supporting timber joists from brick or block walls
- New build and extension floor structures
- First and ground floor joist installations
- Renovation projects with masonry perimeter walls
- Agricultural and light commercial builds
Available Sizes
- 47 x 100mm to 47 x 215mm
- 75 x 140mm to 75 x 215mm
- 90 x 140mm to 90 x 165mm, 90 x 190mm, 90 x 215mm
- 100 x 150mm to 100 x 215mm
- 150 x 190mm and 150 x 215mm
Key Properties
- Single piece construction, no welds
- Pre-galvanised steel for corrosion resistance
- Straight top flange for mortar bed installation
- Hangers 150mm+ made 10mm short for regularised timber
- Sold in boxes of 10
Not suitable for: Not suitable for face-fixing to timber or steel frames: these hangers are designed to be built into a masonry mortar course as the wall is constructed. Not recommended for fully exposed external or below-ground applications where heavy-duty hot-dip galvanising would be required.
Galvanised masonry joist hangers are installed during the bricklaying stage, not after the wall is complete. The straight top flange is bedded into the mortar course at the correct height for the joist line, with the hanger body projecting inward to receive the joist end. Position needs to match your joist spacing layout before that course is laid.
Once the mortar has cured and the wall is complete, the timber joist drops into the hanger and is secured through the nail holes in the hanger sides and base. Check that the joist sits fully into the hanger with good bearing contact. Hangers in the 150mm-plus range are sized 10mm short to account for the actual size of regularised timber, so verify your timber dimensions match the hanger size before ordering.
- Calculate joist spacing and mark hanger positions on the wall before bricklaying reaches the required course height.
- Select the correct hanger size to match your joist width and depth, remembering that hangers 150mm and above are 10mm shallower than stated to suit regularised timber.
- Bed the straight top flange of each hanger into the mortar course at the correct height, ensuring the hanger body is level and square to the wall face.
- Continue bricklaying above the flange, allowing the mortar to cure fully before loading the hangers.
- Drop the timber joist into the hanger, checking it sits fully into the seat with adequate bearing.
- Fix the joist through the nail holes in the hanger sides and base using the appropriate structural nails.
- Check all hangers for level and correct alignment before the floor deck is laid.
Why are the deeper hangers made 10mm shorter than the stated size?
Hangers with a nominal depth of 150mm or more are manufactured 10mm shallower than their stated dimension. This accounts for notching allowance and the fact that regularised timber typically runs slightly undersized compared to its nominal size. It ensures the joist sits correctly in the hanger without sitting proud of the wall face.
Can these masonry joist hangers be retrofitted into an existing wall?
No. These are designed to be built into the mortar course during construction. The straight top flange needs to be fully bedded into the mortar as the wall is laid to achieve the required load transfer. If you need to fix a joist hanger to an existing masonry wall, you would need a different type of hanger designed for face-fixing or resin anchoring.
How many hangers come in a box, and do I need one at each end of every joist?
Each box contains 10 hangers. In most floor constructions, a joist hanger is required at both ends of each joist where it bears onto a masonry wall, so you need two hangers per joist. Count your joists, multiply by two for any walls where hangers are required, and order accordingly. Rounding up by a box avoids a return trip to the merchant.
These masonry joist hangers are pressed from pre-galvanised mild steel in a single piece, eliminating fabricated or welded joints that could act as corrosion initiation points. The pre-galvanised coating provides a zinc layer applied before forming, giving consistent coverage across the full surface including folded edges. The straight top flange profile is designed for mortar bed installation in standard brick or block construction. Hangers at 150mm depth and above are produced 10mm under nominal size to accommodate notching tolerances and the typical undersizing of regularised structural timber.
| Material | Pre-galvanised mild steel |
|---|---|
| Construction | Single piece, no welds |
| Top Flange Type | Straight |
| Available Widths | 47mm, 75mm, 90mm, 100mm, 150mm |
| Available Depths | 100mm, 125mm, 140mm, 150mm, 165mm, 175mm, 190mm, 215mm |
| Depth Tolerance Note | Hangers 150mm depth and above are manufactured 10mm under nominal size |
| Box Quantity | 10 |
| Finish | Galvanised |
| Application | Masonry built-in installation |
| Size | 100 x 150mm, 100 x 165mm, 100 x 190mm, 100 x 215mm, 150 x 190mm, 150 x 215mm, 47 x 100mm, 47 x 125mm, 47 x 140mm, 47 x 165mm, 47 x 190mm, 47 x 215mm, 75 x 140mm, 75 x 175mm, 75 x 190mm, 75 x 215mm, 90 x 140mm, 90 x 165mm, 90 x 190mm, 90 x 215mm |
|---|---|
| Box Quantity | 1 |
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