Single tunnels (Solo) — free-standing tunnels on ground anchors
A single tunnel is a free-standing polytunnel in which each hoop is anchored on both sides in its own ground anchors screwed into the soil. It is easy to move to another field, and it is warmer inside — that is why it works well for a very early crop.
Width 6–11 m, round or gothic arch, up to 5 m high on upset anchors.
- from 28 zł/m² net with film, excluding transport and assembly
- 6–11 m width, round or gothic arch
- up to 5 m high on upset anchors
- E370+Z275 anchor steel
- 3 years warranty on the film
What a single tunnel is for
Single tunnels extend the growing season: plants can also be grown in late autumn, winter and early spring. The structure protects the crop from rain, wind and snow, and light ground anchors let you dismantle the tunnel quickly and move it to another plot when you change the rotation or the crop.
- Mobility
- The structure can be dismantled and set up on another field — ground anchors are screwed into the soil without foundations.
- Earlier crop
- A single tunnel is warmer, so it works better for very early production.
- Strong ground anchors
- Ground anchors in E370+Z275 steel — c. 10% stronger than S350+Z275, at the same price.
- Up to 5 m high
- Upset anchors 1.25–2.0 m allow very high tunnels, e.g. over trees.
Technical specification
Ground anchors
We match anchor length to the soil type and the crop. Ground anchors in E370+Z275 steel.
| Variant | Diameter | Anchor lengths | When to choose |
|---|---|---|---|
| Solo 40 | Ø40 mm | 700, 850, 1000 mm | light, seasonal crops and smaller areas with a low load |
| Solo 50 | Ø50.8 mm (2″) | 700, 850, 1000 mm | budget variant — clearly stronger than Ø40, cheaper than Ø60.3 |
| Solo 60 | Ø60.3 mm (2 3/8″) | 700, 850, 1000 mm; with an upset 1.25 / 1.5 / 1.75 / 2.0 m | most often chosen by professionals; with an upset — tunnels up to 5 m high |
Hoop tubes
Hoops determine the shape and strength of the tunnel. We make them from S350+Z275 steel.
| Profile | Size | Use |
|---|---|---|
| round | Ø40 mm | light garden and seasonal tunnels |
| round | Ø50.8 mm (2″) | standard for medium-size agricultural tunnels of medium load capacity |
| round | Ø60.3 mm (2 3/8″) | reinforced year-round tunnels of large span |
| oval | 80×40 mm | high stability at a moderate weight |
| oval | 90×50 mm | tunnels where wind and snow loads are critical |
Shape, dimensions, film
| Parameter | Value |
|---|---|
| Arch shape | round (even force distribution) or gothic (better rain and snow shedding) |
| Tunnel width | 6–11 m |
| Height | up to 5 m on upset anchors |
| Film | single, 150–200 µm; 3-year warranty on the film |
Reinforcements against wind and snow
In single tunnels the ridge tube is standard. You add T or V horizontal bracing as an option — it strengthens the tunnel most against snow.
Standard
Ridge tube
The tube runs the full length of the tunnel, 20 or 40 cm below the peak of the hoops.
It stiffens the tunnel from above and stops the arches from spreading.
Ridge tube: parametry Tube Ø35×1.5 mm Position 20 or 40 cm below the peak, along the full length of the tunnel Protects against spreading of the arches 
Option
T or V horizontal bracing
A horizontal tube joins both sides of the arch. Together with the hoop it forms a truss.
It strengthens the tunnel most against snow.
- T
- a vertical tube from the horizontal bracing to the hoop
- V
- two short diagonal braces, left and right, from the horizontal bracing to the hoop (in the drawing)
T or V horizontal bracing: parametry Horizontal bracing Ø40×1.5 mm tube, length 4–7 m depending on bay width T and V members Ø35×1.5 mm tube Fitting on every hoop Protects against snow
Stronger steel at the same price
We have manufactured steel structures since 1995. We state the specifications plainly — just as in the offer.
E370+Z275
Y-legs and ground anchors in stronger steel
E370+Z275 steel is c. 10% stronger than classic S350+Z275 — and it costs you the same.
| Y-legs | E370+Z275 |
|---|---|
| Ground anchors | E370+Z275 |
| Hoops | S350+Z275 |
- 90×50 mm
- Oval hoop tube: 29% higher strength than 80×40 at a similar price.
- 100%
- of accessories from our own production: ground anchors, clamps, clips, connectors, film and gutter fastenings.
- ISO
- 9001, 1090 and 3834 — quality management, steel structures and welding.
- 3 years
- warranty on the film.
Accessories from our own production
We make 100% of the accessories in our plant, so they fit the structure and we also fulfil non-standard orders.
- single and double ground anchors
- hingeless and hinged clamps
- metal clips
- connectors
- film fastening systems
Our single tunnels in the field
Single tunnel versus multibay
| Feature | Single tunnels (Solo) | Multibay tunnels (Multibay) |
|---|---|---|
| Structure | free-standing tunnel, each hoop on its own ground anchors | bays joined side by side on shared rows of legs |
| Founding | ground anchors screwed into the soil, steel E370+Z275 | Y-legs screwed into the soil, steel E370+Z275 |
| Hoops | steel S350+Z275, round or gothic arch | steel S350+Z275, round or gothic arch |
| Width | 6–11 m | 6–11 m per bay |
| Gutters and rainwater | no | yes, gutters between the bays |
| Flexibility | easy dismantling and relocation to another field | modular extension with further bays |
| Early crop | warmer inside — better for a very early crop | — |
| Price of structure with film | from 28 zł/m² net | from 23 zł/m² net |
How much does a single tunnel cost?
Single tunnels: from 28 zł/m² net for the steel structure with film, excluding transport and assembly. Assembly: from 8 zł/m² net.
from 28 zł/m²
net, steel structure with film, excluding transport and installation
Prices and what affects the priceFrom enquiry to a tunnel in the field
Enquiry
You call, write or fill in the configurator: crop, field dimensions, timing.
Site visit
We match the tunnel type, bay width, tube profile and arch shape to the crop and the conditions in the field.
Production
We make the structure and accessories at our own plant in Bralin (Wielkopolska Voivodeship) — c. 10 ha of tunnels per month.
Delivery
We bring the packed parts to the field, and the tubes are bent on site, at the customer's. Transport is quoted separately.
Assembly
We assemble the tunnels as a full service or support your crew with our fitter. Assembly: from 8 zł/m² net.
Frequently asked questions
Can a single tunnel be moved to another field?
Yes. The tunnel stands on ground anchors screwed into the soil, without foundations, so the structure can be dismantled and set up on another plot.
Why does a single tunnel work better for an early crop?
A single tunnel is warmer than a multibay one, so we recommend it for very early production.
Which anchor length should I choose?
Anchors are 700, 850 or 1000 mm, and in the Ø60.3 mm variant also 1.25–2.0 m with an upset. We match the length to the soil type and tunnel height during the field visit.
How much does a single tunnel cost?
Single tunnels: from 28 zł/m² net for the steel structure with film, excluding transport and assembly. Assembly: from 8 zł/m² net.
How do I reinforce a single tunnel against wind and snow?
As standard a single tunnel has a Ø35×1.5 mm ridge tube, run 20 or 40 cm below the peak along the full length of the tunnel — it stiffens it from above and stops the arches from spreading. As an option we add horizontal bracing from Ø40×1.5 mm tube in a T or V variant, which together with the hoop forms a truss and strengthens the tunnel most against snow.
Let's talk about your field
Call or configure a tunnel online — a sales advisor will get back to you with an offer.