Base Jacks & U-Heads
Scaffolding & Access
Priced on enquiry
Priced against spindle length, solid or hollow, and base plate size.
Tell us the size and where it is going.
About this product
- What it is: A threaded spindle on a welded base plate, with a winged nut that raises or lowers the…
- Spindle lengths: 100 · 200 · 300 · 400 · 500 · 600 · 750 mm
- Adjustment: About 40 – 450 mm on a 600 mm jack
- Spindle: Solid OD 26 – 48 mm · hollow 32, 34 and 38 mm
- Base plate: 150 × 150 mm standard, 5 – 8 mm thick.
- Load: About 100 kN, and failure about 150 kN on a 32–38 mm hollow spindle — both are…
All 7 options
Every option on one list. Tap any row to ask about that one.
| Size / product | Details | Enquire |
|---|---|---|
| Adjustable base jack — 400 mm | Solid spindle · 150 × 150 mm base plate · hot-dip galvanised | Ask |
| Adjustable base jack — 600 mm | Solid spindle · 150 × 150 mm base plate · the standard size, about 40–450 mm of adjustment | Ask |
| Adjustable base jack — 750 mm | Solid spindle · for deeper level changes | Ask |
| Adjustable base jack — hollow spindle | 32, 34 or 38 mm hollow spindle · lighter to handle, failure about 150 kN | Ask |
| U-head jack — 600 mm | Forked head to carry a primary beam · same thread and base as the base jack | Ask |
| Swivel base jack | Articulating base plate for a sloping surface, where a fixed plate would bear on one edge | Ask |
| Fixed base plate 150 × 150 mm | No adjustment · for level, prepared ground only | Ask |
- Solid spindle · 150 × 150 mm base plate · hot-dip galvanisedAsk on WhatsApp
- Solid spindle · 150 × 150 mm base plate · the standard size, about 40–450 mm of adjustmentAsk on WhatsApp
- Solid spindle · for deeper level changesAsk on WhatsApp
- 32, 34 or 38 mm hollow spindle · lighter to handle, failure about 150 kNAsk on WhatsApp
- Forked head to carry a primary beam · same thread and base as the base jackAsk on WhatsApp
- Articulating base plate for a sloping surface, where a fixed plate would bear on one edgeAsk on WhatsApp
- No adjustment · for level, prepared ground onlyAsk on WhatsApp
Priced against spindle length, solid or hollow, and base plate size.
What it is
The adjustable foot that takes a scaffold off uneven ground and back to level. Ground in this market is rarely flat and almost never level, which is why the jack is not an optional extra.
Specification
Everything published for this product. Anything not listed here is not published — ask and we will confirm it for the unit you are buying.
- What it is
- A threaded spindle on a welded base plate, with a winged nut that raises or lowers the standard sitting on it. A U-head is the same jack with a forked head instead of a plate, for carrying a beam.
- Spindle lengths
- 100 · 200 · 300 · 400 · 500 · 600 · 750 mm
- Adjustment
- About 40 – 450 mm on a 600 mm jack
- Spindle
- Solid OD 26 – 48 mm · hollow 32, 34 and 38 mm
- Base plate
- 150 × 150 mm standard, 5 – 8 mm thick. EN 74 §5.2.3 and EN 12811-1 §5.7.1 both set the end plate at not less than 150 cm² with a minimum width of 120 mm — two separate requirements. A square 120 × 120 plate is only 144 cm² and does not meet the area rule, so where a specification names either standard we quote 150 × 150. EN 12811-1 also asks for at least 6 mm on a base jack end plate.
- Load
- About 100 kN, and failure about 150 kN on a 32–38 mm hollow spindle — both are manufacturers' tested figures. Neither EN 74 nor EN 12811-1 states a load for a base jack; they set the geometry (plate area and thickness, overlap, spindle tilt) and leave capacity to the maker's test and the scaffold design. Ask for the test report with the quotation.
- Standards
- EN 74 §5.2.3 for the base plate · EN 12811-1 §5.7 for the jack — minimum overlap 25% of the shaft or 150 mm, whichever is greater, and spindle tilt not more than 2.5% unloaded · BS 1139-2.2
- Finish
- Hot-dip galvanised · painted on request
Technical Procurement & Ordering Guides
10 drawings covering every answer we need to price Base Jacks & U-Heads — every figure comes from the price table above or from the published standard it is made to.
Base jackGetting level
1 of 10
Send us the size, wall and length — or send the drawing and we will read it off.
Ready to price your base jacks & u-heads?
Send us the size and the site. We quote the same day, and we deliver across all seven Emirates.
