Long Leg Jiffy Joist Hanger – Timber to Timber
From £49.94£59.93 EX VATINC VAT
Long leg joist hanger designed for timber to timber applications where a standard hanger won’t reach. Ideal for loft conversions and under-slung floor joist situations. Pre-galvanised steel with increased leg lengths to suit joists up to 250mm deep. Conforms to Eurocode 5 and service class 2.
| Size | QTY | Price | QTY |
|---|---|---|---|
| 44mm | 50 | £99.17£119.00 | |
| 47mm | 50 | £99.17£119.00 | |
| 50mm | 50 | £99.17£119.00 | |
| 75mm | 50 | £99.17£119.00 | |
| 100mm | 50 | £99.17£119.00 | |
| 125mm | 10 | £49.94£59.93 | |
| 150mm | 10 | £49.94£59.93 |
Total:
£0.00
The long leg timber to timber joist hanger is built for situations where a standard hanger simply falls short — sometimes literally. When you’re working on a loft conversion or dealing with an under-slung floor joist arrangement where the hanger needs to drop below the supporting beam, the extra leg length makes all the difference. These hangers are specifically proportioned so that all available widths can accommodate joists up to 250mm deep, giving you genuine flexibility across a range of structural scenarios without having to bodge something together or order bespoke metalwork.
Manufactured from pre-galvanised steel, they arrive ready for use in conditions where moisture is a factor. Service class 2 compliance, as defined under Eurocode 5, means they’re rated for interior environments with some humidity variation — think bathrooms above, rooflines nearby, or anywhere a loft conversion sits between conditioned and unconditioned space. The galvanising isn’t a thin cosmetic coating either; it provides a meaningful level of corrosion resistance that holds up over the long term once built in.
Where Long Leg Timber to Timber Joist Hangers Get Used
The clue is in the name with these. Timber to timber means the hanger connects one structural timber to another, as opposed to a masonry or steel beam connection. That’s a common arrangement in older buildings, traditional cut roofs, and modern timber frame construction alike. The extended legs are what separates this product from a standard joist hanger — they allow the hanger to reach down past the supporting beam’s face to grip the joist properly, even where the geometry would otherwise make a flush fit impossible.
Loft Conversions and Structural Alterations
Loft conversion work is probably where you’ll see these most often. When you’re adding a new floor structure or tying new joists into existing ridge beams and purlins, the supporting timbers aren’t always the same depth as what you’re hanging off them. The long leg design handles that offset without compromise. They’re equally at home in floor joist repairs, extensions with exposed beam structures, and agricultural or outbuilding timber framing — anywhere the structural carpentry involves beams of varying depths.
Available in a range of sizes from 44mm up to 150mm width, and supplied in boxes of 10 or 50, these suit both small repair jobs and larger structural packages. Nailing pattern is straightforward, fixing directly through the pre-punched holes into both the supporting beam and the joist itself. A solid, well-proven product for any structural timber work that steps beyond the basics.
Pro Tip: When fixing into the supporting beam, use the full nailing pattern through every pre-punched hole in the hanger flange rather than just a few nails to speed things up — the load rating assumes full fixings throughout, and any structural inspector worth their clipboard will check.
Long leg timber to timber joist hangers are used wherever a structural timber joist needs to be supported from, or hung below, another timber beam and the standard hanger leg length won't reach. They're a staple in loft conversion work, particularly where new floor joists tie into existing purlins or ridge beams of differing depths. You'll also find them in floor joist repairs, extension structures, barn conversions, and any traditional cut roof carpentry where timber-to-timber connections are part of the structural design.
Best For
- Loft conversion floor structures
- Under-slung floor joist applications
- Timber to timber beam connections
- Structural alterations in existing buildings
- Barn and agricultural timber framing
- Extension and new-build roof carpentry
Compatible With
- Joists up to 250mm deep across all widths
- 44mm, 47mm, 50mm, 75mm, 100mm, 125mm, 150mm timber widths
- Standard structural timber and engineered joists
- Timber frame construction systems
Key Properties
- Pre-galvanised steel construction
- Extended leg length for under-slung applications
- Conforms to Eurocode 5
- Service class 2 rated
- Pre-punched nail holes for straightforward fixing
- Available in boxes of 10 or 50
Not suitable for: Not suitable for masonry or steel beam connections — this is a timber to timber hanger only. Standard leg joist hangers should be used where joist and beam depths are matched and no leg extension is required.
Before fitting, confirm the joist width matches the hanger size and that the supporting beam is structurally sound and adequately sized for the load. Position the hanger against the supporting timber at the correct height to achieve the finished floor or ceiling level you need, accounting for the drop of the extended legs below the beam face.
Hold the hanger in place and fix through the flange into the supporting beam first, using the full nailing pattern through every pre-punched hole. Slot the joist into the hanger seat, check it's level and correctly seated, then nail through the side tabs into the joist. Do not leave any holes unfilled — the load rating depends on complete fixings throughout.
- Check the joist width matches your selected hanger size before opening the box
- Mark the hanger position on the supporting beam at the correct height for your floor or ceiling level
- Hold the hanger against the supporting beam and nail through the top flange holes first to secure the position
- Complete the full nailing pattern into the supporting beam through every pre-punched hole in the flange
- Offer the joist up into the hanger seat and check it sits square and level
- Nail through the side tabs into the joist face using the correct joist hanger nails, filling all holes
What is the maximum joist depth these hangers can accommodate?
All widths in the long leg range are designed to take joists up to 250mm deep. The extended leg length is what makes this possible across every size, which is why these are specified for loft conversions and under-slung applications where standard hangers can't reach.
What fixings should I use with these joist hangers?
Use joist hanger nails through every pre-punched hole in the hanger. The load rating quoted for the product assumes the full nailing pattern is completed in both the supporting beam flange and the joist side tabs. Using fewer fixings reduces the rated capacity and may not meet building control requirements.
Manufactured from pre-galvanised steel, these long leg joist hangers provide corrosion resistance suitable for service class 2 environments as defined under Eurocode 5. The extended leg profile allows the hanger to sit below the supporting beam face, accommodating joists up to 250mm in depth across all available widths. Pre-punched nail holes are positioned to deliver the rated structural load capacity when fully fixed to both the supporting timber and the carried joist.
| Material | Pre-galvanised steel |
|---|---|
| Available Widths | 44mm, 47mm, 50mm, 75mm, 100mm, 125mm, 150mm |
| Maximum Joist Depth | 250mm |
| Standard | Eurocode 5 |
| Service Class | 2 |
| Connection Type | Timber to timber |
| Pack Sizes | 10 or 50 |
| SKU | THLL |
| Size | 100mm, 125mm, 150mm, 50mm, 75mm, 44mm, 47mm |
|---|---|
| Box Quantity | 10, 50 |
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