Single helix
One helix at the tip
- Carries compression and tension
- Fast and economical
- For homes, extensions, modular buildings, jetties and carports
Screw piles
Screw piles: foundations without concrete
A screw pile is a steel tube with one or more helices that we screw down to load-bearing ground. No digging, no concrete and no waiting: you build on the same day. We measure the torque of every pile, so its capacity is known.
100 yearswarranty on the steel (manufacturer)
Ø 60–324 mmtube diameters
1,000 kNup to, per pile
132 kNminstallation torque
Why screw piles?
- No digging, no soil to remove
- No concrete and no curing: ready to load
- Vibration-free and quiet, even next to existing buildings
- Capacity measured for every pile through torque
- Works in clay, sand, peat and on the water
- 60 to 80% less CO₂, removable and reusable
How we install screw piles
On site: helical piles as tension anchors under solar panels
Which pile type fits your project?
Click a type: the animation shows how the pile carries its load, the steps explain it.
Multi-helix
Two or three helices
- More capacity in softer ground
- Strong in uplift and alternating loads
- For BESS, solar parks, halls and bridges
Winged pile
Wings below ground level
- Extra lateral stiffness
- A smaller diameter will do
- For signs, lighting and free-standing structures
Block pile
Concrete block around the pile head
- Spreads lateral forces
- Shorter, lighter piles possible
- For noise barriers and fences
HELIX (small)
Small, installed by hand
- 0.7 to 3.2 m, 160 mm helix
- No machines needed
- For terraces, fences, sheds and jetties
The Paalupiste range
We work with screw piles from Paalupiste, a Finnish manufacturer of screw piles since 2001.
| Tube diameters | 60.3 · 76.1 · 88.9 · 114.3 · 139.7 · 168.3 · 219.1 · 273.0 · 323.9 mm |
|---|---|
| Helix diameters | 150 to 1,000 mm, one or more helices |
| Capacity | up to 1,000 kN per pile |
| Steel | high-strength SSAB steel |
| Certification | EN 1090, ISO 9001 and ISO 14001 |
| Finish | black or hot-dip galvanised |
| Length | extendable, many metres deep |
Applications
Installation and control
- Hydraulic tracked machines and excavators with Prodig and Digga drive heads, up to 132 kNm
- Hand-held machines for gardens and narrow passages, a pontoon for work on the water
- Torque recorded for every pile: capacity is measured, not guessed
- Pile heads set to level with a laser
- Installation report with depth and torque per pile
- Load tests in compression and tension where the project calls for it
For engineers and engineering firms
We provide the manufacturer's product data and capacity tables and align the pile proposal with your structural engineer. Our free e-book (in Dutch) explains how to design steel screw piles to Eurocode 7.
Download the e-book (Dutch)Frequently asked questions
How deep does a screw pile go?
At least below frost depth, and further until the helix sits in a layer that can carry the load. For homes or soft ground that can be 6, 10 or even 15 m.
How do you know a screw pile will hold?
During installation we measure the torque, which is directly related to the capacity. For larger projects we also start from a CPT sounding.
How long does a screw pile last?
Decades. The manufacturer guarantees the steel for up to 100 years, and we account for corrosion according to EN 1993-5.
Read also: Pile calculator · The birth of the screw pile · All projects