5 metres for strength and durability. A polytunnel is a steel framed tunnel with a polythene cover used by gardeners and commercial growers for growing vegetables, fruits and flowers. • All our tunnels have a 5 year polythene with an ultra violet light inhibitor, to protect from break down by the suns rays. Brace bars when installed are approximately 1. Different shapes and sizes of polytunnels can be built, to create microclimates suited for different types of vegetation. Polytunnel repairs and refurbishments are just two of the services offered by a polytunnel company, they also offer different quality grades of polytunnel covers to produce different growing…The Quickcrop mini tunnel kit is a DIY kit for building a sturdy and long lasting mini polytunnel for plant and raised bed protection. 36 (Inc. 01-0731. Product offerings include farm supplies, aquaponic, poultry supplies, agriculture products, animal housing, home improvement, commercial high tunnels and hoop houses, fodder growing kits, livestock care and greenhouse equipment, including garden carts and poly film. Select options Quick View. 9FT Tall working height throughout with 2FT 6" straight sides (slow gradual curve to 9ft, giving maximum. Little Cottage Co. Our 18ft wide polytunnels are perfect for farmers and professional food producers. All our Polytunnel Kits Include Everything you need to Start Growing FEATURES, SPECIFICATIONS & WHATS INCLUDED: 18FT Wide X 24FT Long; 9FT Tall and has maximum working height throughout, full standing height from approx 1FT in from sides perfect for all your gardening and growing needs ;We have a wide range of polytunnel fixing kits to match your polytunnel size, including our garden range and pro range. 33mm Diameter Thick Walled Heavy Duty. £19. This polytunnel greenhouse structure allows for excellent ventilation. These structures, primarily used for growing plants… Polytunnel Ground Anchor Kit. Complete Polytunnels delivered to you, installation available. The trench needs to be approx. VAT, excl. Mar 10. Polytunnel 19mm 4m x 2m. Ornamental canopies are very popular for businesses offering them additional outdoor spaces. With. Direct Polytunnels 14ft Wide x 36ft Long Conventional Polytunnel KitAll our Polytunnel Kits Include Everything you need to Start GrowingFEATURES, SPECIFICATIONS & WHATS INCLUDED: 14FT Wide X 36FT Long 7FT 6" Tall and has excellent working. Commercial Horticulture. Greenhouse Garden Polytunnel Grow Tunnel Vegetable Allotment 0. Round frames are best for snow load, and high. Greenhouse Tunnel Kit, 0. 90. Add to basket. The polytunnel kit includes: Heavy duty galvanised ground tubes; Galvanised high-strength steel framework; Tanalised timber end frames; Galvanised/electroplated fittings & fasteners FarmTek offers the best customer service and most economical prices on products for the agricultural industry. Quickcrop Mini Polytunnel Connector Kit Only. We supply heavy-duty self-assembly polytunnel kits at affordable prices. 3m x 2m Polytunnel "Strongest In It's Class" a fully Galvanised Structure with more Diagonal & Roof Bracing than all others. long. We use superior materials in our products to achieve this: - Tanelith E treated timbers for outdoor use. Each one comes with thick steel pins and anchor down brackets so you can get the job done smoothly. Large Outdoor Polytunnel Greenhouse with Heavy Duty Steel Frame, for Garden Plant Tomato Growhouse Hot House, 2m/3m/4m/5m/6m Long Walk in Greenhouse Tunnel ( Color : White , Size : 600x200x200cm ) $69518. 44m) wide model with 3ft 3in (0. What are Poly Tunnels? Demand for Polytunnels. This helps us ensure that we are providing the structural solutions that are built to withstand the worst. Placing a single path down the center of a polytunnel between two beds when it is wider than eight feet can make it very difficult to access the backs of the beds. £249. We offer greenhouse film; benders and jigs for high tunnels and low tunnels; and supports, anchors, and hardware to keep it all together. Long Lifespan: Our High Tunnel Greenhouse frame comes with a 3 year prorated warranty, so you know they have been built strong. 1m, and 14m. The fan is 12 inches in diameter and has three speed settings and a sixty minute timer. In this episode I show you how to build a polytunnel kit. I would recommend something that you can leave open all the time. co. VonHaus Polytunnel Greenhouse – 3m x 2m Walk in Pollytunnel Tent – Heavy Duty Weatherproof 6m² Poly Tunnel for Garden and Outdoor – Steel Frame and Steel Frame Door – Insect Proof Roll Up Mesh Windows. Polytunnel Kit – width 30ft (9. We warmly welcome you to wholesale high-grade poly tunnel greenhouse kits made in China here from our factory. We supply heavy-duty self-assembly polytunnel kits at affordable prices. Our innovative technology allows for maximum efficiency with minimal environmental impact. Mini polytunnels can be fixed to raised beds to create a compact growhouse, fixed to the ground with our peg system or used inside a full sized tunnel to create a heat retaining double glazing effect. 6. Shop great deals on Polytunnels Frames. £58. The EasyGro range is our starter polytunnel which Includes high spec steelwork, polythene and commercial grade fittings. This greenhouse is also great for extreme rains and winds. £84. The polytunnel kits come well organised when purchasing from an online garden shop these will come all bundled up with the instructions on how to erect the polytunnel up. What are Poly Tunnels? Demand for Polytunnels. We can go as small as 8 feet wide x 20 feet long x 8 1/2 feet high or as big as 38 feet wide, 15 feet high and 100 feet long. Greenhouses require more time to construct. £8799. 1 Roll Polythene Repair Tape. FEATURES, SPECIFICATIONS & WHAT'S INCLUDED: 14FT Wide X 24FT Long. Some customer use heavy-duty, galvanised weldmesh, whereas others choose timber slats. The heat retained inside the polytunnel allows grower to maintain a certain temperatiure and humidity in order to grow crops and flowers even during off-season periods. Outsunny 3 x 2 x 2m Greenhouse Replacement Walk-in PE Hot House Cover with 6 Windows Roll-Up and Zipper Door, White. We have an easy-to-follow video tutorial to guide you through each step. 00 Caterpillar Tunnel Kit. Advantages of Polytunnel Greenhouses. Polytunnel fittings. However, the kit needs some work. See Options. 4x Securing Down Brackets. 18FT Wide X 30FT Long; 9FT Tall and has maximum working height throughout, full standing height from approx 1FT in from sides. Bungee cords are not included. We are also happy to answer any questions by email. €24. The mini tunnel kit does not have to be used outside, it can be used in an existing polytunnel or greenhouse to create a sort of double glazing effect. Ideal for growing out of season salad produce, early vegetables, bedding plants etc. Large Polytunnels. £26. THE START OF GROWING SEASON 2022 IS IN FULL SWING & A POLYTUNNEL CAN GIVE YOU BUMPER. Our tunnels are available in a variety of sizes. Heavy Duty Direct From Manufacturer Full Kit (No Doors) £799. Polytunnels are cheaper than greenhouses per square foot. Polytunnel Kit – width 12ft (3. Frame Guard tape supplied. 72 (Inc. This structure also helps with substantial amount of sun-lighting intake. Our kits include everything you need from timber frame to all the fixings and. Palram - Canopia | Prestige 2 Series Greenhouse Kit. The kit comes with a 16mm OD (1/2” ID) commercial dripline, with pressure compensating emitters positioned every 30cm (12”) along the pipe to ensure even irrigation over three runs per side. Commercial Horticulture. Stay in touch and learn more about Keder Greenhouse, join out mailing list. Available in lengths from 18 to 90 feet these are among our most popular polytunnels. A polytunnel (hoop greenhouse) is great for gardeners that can’t afford a real greenhouse. Complete Mini Polytunnel Kit With Poly Cover. Check Price. 57'') Structural Material: Galvanized Steel Galvanization: 2 layers, hot dip rich galvanizationSheds & Glasshouses. View more detail about the polytunnel kit >> Available standard polytunnel kits sizes: Width: 10ft, 12ft, 14ft, 16ft, 18ft Length: 13ft, 20ft, 27ft, 33ft, 40ft, 46ft, 52ft. I would recommend something that you can leave open all the time. Mini polytunnels can be fixed to raised beds to create a compact. Polyculture and Crop Rotation. We supply aluminium or timber base and side rail fittings, for garden and commercial polytunnels used for fixing the polythene cover to the polytunnel. This kit is a polytunnel gutter only, designed to be used in conjunction with a Timber Side Rail kit or our Aluminium Side Rail kit. 3m Long x 33mm OD x 1. Large Polytunnels. The exception here is if you only have a small space. Exclusions apply. 25. Add to basket. It is possible to order a polytunnel, usually in kit form, from a. Fast & Free shipping on many items! Polytunnel kit from supplier; Cement, for foundation tubes if required; Hammers; Wooden block; Adjustable spanners; Screwdrivers; Spirit level; Anti hot-spot tape We are a leading polytunnel manufacturer in Kerry since 2010. These range from 10 to 18 feet wide with a variety of lengths of up to 90 feet. About the kit. $93. FAX: 651-463-2479. 538 Reviews. After you have driven all of your foundation tubes into the ground, check them with a spirit level to make sure they are level. This greenhouse is also great for extreme rains and winds. Ideal for both polytunnels and raised beds. 68. Then, drape a sheet of heavy duty polytunnel. 99 – £ 70. Hobby Single Sliding Aluminium Door Kit 167. Polytunnels, with their wide and diverse applications, come in various sizes and types tailored for different growing purposes and adaptations. · 32mm hoops as standard. . £58. You’ll need PVC pipes or metal tubing for the frame, polythene sheeting for the cover, and various connectors and screws to hold everything together. Our Raised Beds have the option of integral cloche hoops. Polyculture and Crop Rotation. Size. 5m x 2m (8ft 2in x 6ft 7in) Premium Polytunnel Galvanised Frame by New Leaf™. 10M wide Polytunnel Kit. 6m High (900mm with No Netting) 4. These include foundation tubes, steel tubes, complete accessory kits, specialist clamps and basic fixings & fastenings. View more detail about the polytunnel kit >> Available standard polytunnel kits sizes: Width: 10ft, 12ft, 14ft, 16ft, 18ft Length: 13ft, 20ft, 27ft, 33ft, 40ft, 46ft, 52ft. Polytunnel Kits. 6. Buy & Sell on Ireland's Largest All Sections Marketplace. Polytunnel Parts. 95. 20 . Polytunnel Greenhouse Kits - Factory, Suppliers, Manufacturers from China. Designed in-house by our highly skilled and experienced team, the polytunnel gutter kit is designed to be used in conjunction with our timber or aluminium side rails. Polytunnels kits come with a complete range of components and accessories which allow you to construct purpose-built protection to suit your garden shape and size and the type of plants you will be growing. 85m above the ground. The Evolution of Polytunnels in the UK. Exclusions apply. No. To assist with pollination. Polytunnels are available for sale in a range of sizes with spans from 2m right up to 7m. 1-48 of 264 results for "polytunnel" Results Price and other details may vary based on product size and color. Domestic polytunnels have come a long way in recent years, in both the manufactured makes and different models now available. mp4. The polythene used is 720 guage (180 microns) or 800 guage and comes in clear or opaque. Specifications: 3. Jun 5, 2015 - Total Polytunnels are leading supplier & manufactures of high quality polytunnels. There is a range of different-width polytunnels for sale that will allow domestic gardeners to create an undercover growing area and produce more of their own, fresh food and beautiful plants. In my 10-foot-wide tunnel, I. £2899. Shop great deals on Polytunnels Frames. 95 - €134. On aluminium side rails the gutters simply slot. 55. 00. 5m for the centre, mark it on the poly so. Get 10% DISCOUNT off your new polytunnel and any other products from Direct Plants, by using my code LIZ10 at JFM Polytunnels. The kits are supplied with plenty of pipe and fittings for both sides of the polytunnel. Sizes from 25mm, 35mm, 50. Ornamental canopies are very popular for businesses offering them additional outdoor spaces. Our 18ft wide polytunnels are perfect for farmers and professional food producers. 5-Great Exotic Vegetables or Crops for Commercial Polytunnels. Greenhouses & Polytunnels for sale in Ireland - Buy Greenhouse Online - Polycarbonate Polyunnels - Vegetable Seeds and Greenhouse Accessories - We are specialists in polycarbonate polytunnels and greenhouses. 18ft wide polytunnels. 99. £219. The 14-foot width provides a huge amount of planting space and with generous head. From: €1,650. This means that the sides are vertical for about 3 feet before they start curving to make an arched polytunnel. We're professional poly tunnel greenhouse kits manufacturers and suppliers in China, specialized in providing high quality products and service. £39. These type. Timber side rails are exactly the same as base rails, but these rails are placed around the polytunnel framework at the top of. A wooden garden stake cut to 1m is useful to get the gap from the first poly pipe. You can personalise your tunnel with many optional extras to ensure your Polyshadehouse matches your location and your crop growing needs. Gazebo, Canvas, Nylon, UV Resistant Air Bed Paddling Pool Puncture Repair Kit. Polytunnel Kits. Polytunnel Gutters provide an easy, cost-effective way of collecting rainwater from your polytunnel, ensuring you can always keep watering. Side Rail Kit (Right Side) Timber Side Rail Kit (Right side) £143. This means that the sides are vertical for about 3 feet before they start curving to make an arched polytunnel. 5m lengths of pre-drilled and socketed uPVC pipe, Access mini-spin nozzles, drip-stop valves, downtubes, entry filter and ‘geka’ hose fitting. Polytunnel kit from supplier; Cement, for foundation tubes if required; Hammers; Wooden block; Adjustable spanners; Screwdrivers;. We supply heavy-duty self-assembly polytunnel kits at affordable prices. This kit is a polytunnel gutter only, designed to be used in conjunction with a Timber Side Rail kit or our Aluminium Side Rail kit. Sizes are much smaller than polytunnels, which is an obvious advantage for most homeowners. 00 £121. Polytunnels are quicker to erect than glasshouses. 1 OF 4. £26. 44m x 4. Follow @ukpolytunnelsrus and get more of the good stuff by joining Tumblr today. 50. Direct Polytunnels 14ft Wide Straight Sided x 18ft Long Polytunnel Kit All our Polytunnel Kits Include Everything you need to Start Growing FEATURES, SPECIFICATIONS & WHAT'S INCLUDED:. Domestic polytunnels have come a long way in recent years, in both the manufactured makes and different models now available. Designed in-house by our highly skilled and experienced team, the polytunnel gutter kit is designed to be used in conjunction with our timber or aluminium side rails. "Strongest In It's Class" a fully Galvanised Structure with more internal bracing than all others!Polytunnel Kits. 48 Sale price. We're professional mini polytunnel greenhouse kit manufacturers and suppliers in China, specialized in providing high quality products and service. Roll-up side windows with insect net 🌬️. It is most often constructed using steel and is covered in polythene. All polytunnels are provided as self-assembly kits. . 10ft x 20ft (3. Minimising wastage and maximising. Product Name. We all love it when things come together… and this time we mean it literally. Tape Dimensions: 50mm x 50m. Domestic Gardening. Prices from £4096. 99 £69. Free standard delivery on orders over £75. The best way to water a polytunnel to reduce the amount of water lost through evaporation, is to water your plants early in the morning or in the evening, rather than during the heat of the day. Basic Principle: Build a wooden frame using 2 x 4 or 4 x 4 boards to the size of your Polytunnel’s base (so that the base frame rests in the center part of the wood throughout) Concrete corner and center stakes onto the ground, onto which you can fasten the frame. You may also see polytunnels referred to as polyhouses or hoophouses. . Outsunny 6 x 3 x 2 m Polytunnel Greenhouse Pollytunnel Tent w/ Steel Frame White. 50m-200m. Horizontal brace bars for 16ft polytunnels come standard with crop hangers and are approx $127. Proven to grow plants faster than the competition, our High Tunnel Greenhouse Kit comes with. Add to Wishlist. 6M (8’6″) high. The option includes an extra centre post of 3″ x 2″ timber for fixing panel, bolts. Outsunny 3 x 2 x 2m Greenhouse Replacement Walk-in PE Hot House Cover with 6 Windows Roll-Up and Zipper Door, White. Poly-Tex High Tunnel greenhouses are a quick and inexpensive way to lengthen your growing season, protect your crop from pests and disease, decrease water usage, and. , Ltd: We're well-known as one of the leading greenhouses, carports, sheds, polytunnel greenhouses, portable greenhouses manufacturers and suppliers in China. All polytunnels are provided as self-assembly kits. Grow bigger plants, faster with our custom arched or round High Tunnel Greenhouse. The kits will usually come with the steel hoops (which will need putting together), the doors, the polythene, the screws. Polytunnel 8ft wide. We simply screwed in 16 C shaped brackets around the sides of the garden box. 5 oz polyethylene greenhouse cover kit proven to grow plants more efficiently. 95 - £124. The kit comes with a 16mm OD (1/2” ID) commercial dripline, with pressure compensating emitters positioned every 30cm (12”) along the pipe to ensure even irrigation over three runs per side. R FIRST TUNNELS Dixon Street, Barrowford Lancashire BB9 8PL Telephone 012 8 2 6 012 5 3 Facsimile 012 8 2 612 4 2 0 Email [email protected] Call us: 01239 851 551Buy Now. · Wooden base and side rails. Diagonal brace bars which attach to the second foundation tube, and part way up the front hoop to the give the end of the tunnel support. Most are kit form construction with galvanized steel frames with timber supports for extra stability. 2m Wide x 0. They’re perfect for exposed sites. Straight sided modern frame design for ultimate height, but still retaining aerodynamics & strength for exposed & windy sites. com. EZ-Clip. These structures feature straight sidewalls and a roof that comes to a point at its center. These greenhouses models are named Tropical greenhouses because their use is widespread in this region, and also asymmetric, because, unlike the Gothic and chapel greenhouses, its geometry is asymmetric, with one side of the roof steeper than the other. There are four main types of lettuce: Loose-leaf lettuce. 1m) Wide Animal Housing Polytunnel Kit. You can purchase a high-quality commercial grade polytunnel for under £400. Quite like traditional greenhouses a polytunnel. Ordered a misting kit that is still yet to come. The hoop house range, includes outdoor structures that can be up to 20 meters long, by 5 meters wide. On the other hand, the cover will typically last three or four seasons in areas that see a lot of snow. When preparing the surface beneath your greenhouse, you're going to want to consider one of three things: Paving slab basesSpecifications. BEST PRICES DIRECT . Direct Polytunnels 14ft Wide Straight Sided x 30ft Long Polytunnel Kit. Polytunnel greenhouse 4,5x4,5m (25 pages) Greenhouse Kit Dancover GH152100 Manual. Our polytunnel greenhouse range. You can either use tubes provided in a pre-fabricated polytunnel. The contraption above is our latest design which builds on the success of our mini polytunnel kits and mixes a raised bed and removable crop protection tunnels. polytunnel gardening . Polyeco Classic Polycarbonate PolyTunnel Greenhouse - Steel Frame, Twin Wall, UV. Close ×. 8mm thick steel frame 140g transparent PE material with green checker or clear is UV protected for longer life. Direct Polytunnels 14ft Wide Straight Sided x 30ft Long Polytunnel Kit All our Polytunnel Kits Include Everything you need to Start Growing FEATURES, SPECIFICATIONS & WHAT'S INCLUDED: 14FT Wide X 30FT Long; 9FT Tall working height throughout with 2FT 6" straight sides (slow gradual curve to 9ft, giving maximum head height) perfect for all. A 14ft wide polytunnel kit will give you everything that you need to set up your tunnel on soil or grass in your garden or on an allotment. 4x2 m, 1 m², Green/TransparentPolyshade tunnels have quality commercial grade knitted 30% shadecloth in white colour fitted to the end walls and the door as standard. Our school kits have been created using the most. Ventilation is essental for 2 reasons: To keep airflow going so that the tunnel doesn't get too damp in winter or too hot in summer. Secure Anchoring: All High Tunnel Greenhouse frames come equipped with 30 inch base pipes. polytunnel plastic . 05m x 6. Whether you’re a gardener, allotment owner or commercial grower Direct Polytunnels have the heavy duty, high-quality polytunnel kits you’re looking for. Free Shipping. Whether you grow from earliest spring to late fall or run your production year-round, our season-extension supplies provide the versatility and durability you need to protect your crops from the elements. We’ve also. An industrial strength tube ideal for adding extra supports or creating structures within a polytunnel. We have a wide range of polytunnel fixing kits to match your polytunnel size, including our garden range and pro range. . Whether you’re a gardener, allotment owner or commercial grower Direct Polytunnels have the heavy duty, high-quality polytunnel kits you’re looking for. Greenhouses, Hobby Greenhouse Kits designed with Single Glass, Double Glass, Twinwall Polycarbonate and Five Wall Polycarbonate. The frames can be covered with a clear polythene cover to make a mini greenhouse, with some garden mesh netting to protect against pests like cabbage and carrot root fly, bird netting, or with some garden fleece for cold. 🌱 🏡 With their UV treated design, they've been tailored to thrive under South. 03m) providing. 57 delivery Jun 1 - 16. If you require a longer. We are located in Australia. Your 4m Modular Greenhouse Polytunnel Kit includes: Galvanised steel poles for the endoskeleton 🏗️. ; 🌦️ Built for All Weathers: Features a durable, double-layer polyethylene (PE) cover (180g/m2) with an inner mesh for rip-stop protection. Custom High Tunnel Coldframe Greenhouse. SECRET GARDEN | LITTLE ACORNS | BUSY BEES | DIG IT. Placing a single path down the center of a polytunnel between two beds when it is wider than eight feet can make it very difficult to access the backs of the beds. The quality products that you get in your kit, is far superior to what they used to be. 06. Direct Polytunnels. Polytunnel kits are designed for self-assembly, containing all required components, from frames to covers and anchors, simplifying the construction process for gardeners and commercial growers alike. Polytunnels come in all shapes and sizes, from small models designed for home gardeners to much larger tunnels which are meant for commercial use. $ 0. 18FT Wide X 24FT Long; 9FT Tall and has maximum working height throughout, full standing height from approx 1FT in from sides. Ideal for both polytunnels and raised beds. 5 stars. 2. $4. Compare. 16 - £99. Our tunnels are made from polyethylene for longer life and better performance. Complete Mini Polytunnel Kit With Bird Netting Cover. Whether you’re a gardener, allotment owner or commercial grower Direct Polytunnels have the heavy duty, high-quality polytunnel kits you’re looking for. Our Small Holder and Commercial Ranges, are extremely successful and we have recently completed some great projects across the whole of the UK, supporting many growers as they expand and diversify. Direct Polytunnels. If using a pre-fab polytunnel kit, they will be provided. This includes the incredibly strong frame. Our in-house design team are always innovating new products using the latest state-of-the-art 3D computer modelling system and structural analysis software. Grow bigger plants, faster with our High Tunnel Greenhouse 30 X 60 X 12 ft. Y enthusiasts. ie at a very affordable price. The hoop house range, includes outdoor structures that can be up to 20 meters long, by 5 meters wide. Our polytunnel staging kits are a low cost solution where a full length bench is required for your polytunnel. We all love it when things come together… and this time we mean it literally. Exclusions apply. To secure it you can either attach it to the base rail if you have one (as most pre-made kits will), or simply bury a skirt of polythene in a trench approximately 30cm deep. AU $15. 00 Sale. Free postage. 36 (Inc. 00 1200 Series Gothic Arch Package. Free Shipping. This is the smallest one, the 8′ x 8′ Petite Greenhouse Panelized Kit. Within this article, we’ll explore the benefits of a polytunnel supply company, who has both small polytunnels for sale and larger… 4 min read · Feb 301-0456 845-013 845-071. 45m x 3m x 0. + Zinc coated greenhouse pipes = superior frame durability. POLYTUNNELS FROM DANCOVER Online sale of Polytunnels. Extra Strong Greenhouse Repair Tape, 1 Roll - 10cm width/ 25m Length, Clear Polythene Polytunnel repair Tape, Gardening, Farming. FREE Delivery. Browse our hoop houses, high tunnels and cold frames below. Polytunnel Construction. 00 1100 Series Hoop House Package. 99. 65. 3m x 2m (9ft 10in x 6ft 7in) Premium Polytunnel Galvanised Frame by New Leaf™. Add to Cart The item has been added. Polytunnel Cover available in lengths of: 7. Close ×. One bonus was that we didn’t have to worry about bending the grey. Welcome to visit our company and factory. Different shapes and sizes of polytunnels can be built, to create microclimates suited for different types of vegetation. 30ft (9. Toggle menu. It works the same way a normal greenhouse made of glass would, by attracting and. Polytunnels Ireland are located in Galway. Metal Hinged Door | Rear Zippered Wide Access Door | Groundbar Kit. Items 1 to 12 of 12. This panel allows full airflow through your tunnel, whilst keeping your human entrance door closed and keeping pests, dogs, children, chickens etc out. Our in-house design team are always innovating new products using the latest state-of-the-art 3D computer modelling system and structural analysis software. Advertisement #12 09-09-2015 8:33pm. Horizontal brace bars for 16ft polytunnels come standard with crop hangers and are approx $127. A box with all the required fittings. This is the smallest one, the 8′ x 8′ Petite Greenhouse Panelized Kit. Compared with glass, tunnels have the following advantages. Some of the new, reinforced covers will last longer. Can be retrospectively fitted to an existing polytunnel. £1,013. Extend your growing season and keep those bugs off your vegetables! Why not turn your raised bed into a mini polytunnel & extend your growing season with our mini polytunnel kits?! Our mini. Crisphead/ Batavia/ Iceberg lettuce. Small, mini polytunnels are perfect for residential gardens as they can be set up anywhere and moved around as needed. Mini Polytunnel complete frame kit- wood, kit and tubes. Then screw the board up into the poly.