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Robinson Polytunnels Limited Pasture Barn East, Pasture Lane, Barrowford, Lancashire, BB9 6QX, United Kingdom.

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12ft Polytunnel - 35ft Long

Our prices INCLUDE VAT
Our 12ft Wide Polytunnels

Our 12ft Wide Polytunnels

Our 12ft span polytunnel is great for a larger allotment where you really can grow enough of everything to feed the whole family. Everything grows better inside a polytunnel so with our 12ft wide polytunnel you can grow quantity as well as quality. This size is also a popular choice with schools.

Features of our polytunnels include:
  • Heavy duty galvanised ground tubes
  • Galvanised high-strength steel framework
  • Tanalised timber end frames
  • Galvanised/electroplated fittings & fasteners
  • Polythene tensioning/re-tensioning after sheeting
  • Choice of diffused or clear thermal polythene

See below for a more detailed specification.

Click here for 12ft Polytunnel Assembly Instructions

Build Your 12ft Wide Polytunnel

12ft x 35ft Polytunnel

. . . Now select your options


Choose Polythene Type:
12ft X 35ft Polytunnel - Clear Thermal 800g Polythene 581.00
12ft X 35ft Polytunnel - Diffused Thermal 800g Polythene 598.00

Anti Hot Spot Tape Choice:
No Anti Hot Spot Tape thanks.
Anti Hot Spot Tape for 12ft x 35ft Polytunnel 25.50

Door Choice:
No doors thanks.
Hinged Door Kit (for BOTH Ends) 50.00

Polythene Fixing Method:
Trench the polythene
Timber Base Rail for BOTH Sides 35ft Long 106.00

Timber Side Rail & Net (Only available if Timber Base Rail selected)
No side ventilation thanks
Timber Side Rail & Net for ONE Side 35ft Long 87.00
Timber Side Rail & Net for BOTH Sides 35ft Long 157.00

Roll Up Curtain (Only available if Timber Side Rail & Net selected)
No Roll Up Curtain thanks
Roll Up Curtain for ONE Side 35ft Long 139.00
Roll Up Curtain for BOTH Sides 35ft Long 239.00

Aluminium Gutter - Side 1
No gutters thanks.
Aluminium Polytunnel Gutter ONE Side 35ft Long 78.00
Aluminium Polytunnel Gutter ONE Side 35ft (Side Rail Fixing) 54.50

Aluminium Gutter - Side 2
No gutters thanks.
Aluminium Polytunnel Gutter ONE Side 30ft Long 68.00
Aluminium Polytunnel Gutter ONE Side 30ft (Side Rail Fixing) 47.00



Ground Anchor Plates for 35ft Long Polytunnel - 37.00




Crop Bar Kit for 12ft x 35ft Polytunnel - 62.00




Ground Cover & Pegs for 12ft x 35ft - 31.00




Polytunnel Overhead Spray Irrigation, 35ft Long, 16ft Cover - 34.00


12ft Polytunnel Dimensioned Image

12ft Span Polytunnels - Specification Overview

Foundation Tubes:Thick-walled, heavy galvanised with cover tensioning system.Hoops and Ridge Tube:Z35 galvanised steel tube, diameter 25.4mm with a thicker wall of 1.5mm.


Polythene:5 year guarantee with 7-8 years life expectancy.
2 choices of polythene -
  • 800g Clear for the most natural light conditions, better for ripening crops.
  • 800g Diffused scatters light for benefit of whole crop, better for sunnier locations.
  • End Frames:Tanalith treated timber, 1" x 3" (actual size), planed with rounded corners for easier handling and smooth appearance.
    Double-row of " x 1" Tanalith treated battens to secure the polythene cover.


    Brackets:Galvansised for improved resistance to corrosion.
    Purpose-designed so each type of bracket is perfect for its intended use.
    Corner Braces:Z35 galvanised steel tube, diameter 25.4 x 1.5mm.
    Best design to ensure they don't encroach into the usable space whilst still supporting the end hoop at the optimum position.


    Bolts, Screws & Nails:Galvansised or zinc plated for corrosion resistance.
    Coach bolts are used for timber connections.
    Steel-to-steel connections use Nylock nuts which can't vibrate loose.