{"product_id":"polytunnel-trench-rails","title":"Large Polytunnel Available in 8ft, 10ft or 12ft with Trench or Rail Base","description":"\u003cp\u003eA polytunnel provides a covered growing space that helps improve conditions for plants throughout the year. By enclosing crops, it supports warmer temperatures, limits exposure to wind and rain, and allows a wider range of vegetables, herbs and fruit to be grown more reliably.\u003c\/p\u003e\n\u003cp\u003eOffering a practical alternative to a greenhouse, polytunnels give generous space for planting, maintenance and harvesting. The curved design promotes natural airflow, while the cover helps retain warmth and distribute light more evenly across the growing area.\u003c\/p\u003e\n\u003cp\u003eSuitable for gardens, allotments and larger growing areas, this range is available in different widths so you can select the most suitable option for your space.\u003c\/p\u003e\n\u003ch2\u003eAvailable Polytunnel Width Options\u003c\/h2\u003e\n\u003cp\u003eSelect from multiple widths to match your available area and planting requirements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e8ft wide polytunnel\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e10ft wide polytunnel\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12ft wide polytunnel\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach size provides a practical growing space with good headroom and flexibility for a range of crops.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/polytunnel-crop-bar-kit\" title=\"cross bars\"\u003eCrop bar kits\u003c\/a\u003e are also available as an optional extra to provide additional internal support.\u003c\/p\u003e\n\u003ch2\u003eBase And Door Configuration Options\u003c\/h2\u003e\n\u003cp\u003eEach model is available with a choice of base type and door style, allowing you to tailor the setup to your site and preferred access.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eStandard Door with Trench Base\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSliding Door with Trench Base\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eStandard Door with Rail Base\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSliding Door with Rail Base\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoosing Between Trench And Rail Base\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eTrench base\u003c\/strong\u003e models are installed by securing the cover into the ground around the perimeter. This method provides a firm hold and is commonly used for more permanent installations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRail base\u003c\/strong\u003e models use a rail system with anchor plates, removing the need for digging a trench. This can simplify installation while still offering a secure and stable structure.\u003c\/p\u003e\n\u003ch2\u003eDoor Options For Access\u003c\/h2\u003e\n\u003cp\u003eDepending on the selected version, the tunnel can be fitted with either a hinged door or a sliding door. This gives flexibility based on available space and how you plan to access the tunnel during use.\u003c\/p\u003e\n\u003ch2\u003eAdvantages Of Using A Polytunnel\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eExtends the growing season with a warmer, more stable environment\u003c\/li\u003e\n\u003cli\u003eShields plants from wind, heavy rain and sudden weather changes\u003c\/li\u003e\n\u003cli\u003eEncourages stronger growth through improved light and warmth\u003c\/li\u003e\n\u003cli\u003eSupports earlier planting in spring and later harvesting in autumn\u003c\/li\u003e\n\u003cli\u003eCreates a controlled space for vegetables, herbs, fruit and seedlings\u003c\/li\u003e\n\u003cli\u003eHelps reduce crop damage from outdoor conditions\u003c\/li\u003e\n\u003cli\u003eOffers a cost effective alternative to traditional greenhouses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDurable Galvanised Steel Frame\u003c\/h2\u003e\n\u003cp\u003eThe structure is built from galvanised steel tubing designed for outdoor conditions. The hoop frame provides strength and helps maintain the tunnel’s shape in varying weather.\u003c\/p\u003e\n\u003cp\u003eThe galvanised coating helps protect against rust, supporting long term use in garden and growing environments.\u003c\/p\u003e\n\u003ch2\u003eUV Stabilised Polytunnel Cover\u003c\/h2\u003e\n\u003cp\u003eThe cover allows high levels of light into the tunnel while helping spread it evenly across the space. This creates a balanced growing environment for plants.\u003c\/p\u003e\n\u003cp\u003eUV stabilisation improves durability outdoors, while the material helps retain warmth inside the tunnel, particularly during cooler periods.\u003c\/p\u003e\n\u003ch2\u003eSuitable For Growing A Wide Range Of Crops\u003c\/h2\u003e\n\u003cp\u003ePolytunnels are widely used for growing crops that benefit from warmth and protection from the elements.\u003c\/p\u003e\n\u003cp\u003eTypical uses include tomatoes, cucumbers, peppers, chillies, herbs, salad crops, strawberries and other fruit and vegetables.\u003c\/p\u003e\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cp\u003eEach polytunnel is supplied with the main components required for assembly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGalvanised steel hoop frame\u003c\/li\u003e\n\u003cli\u003ePolytunnel cover\u003c\/li\u003e\n\u003cli\u003eDoor and frame components\u003c\/li\u003e\n\u003cli\u003eFixings and hardware\u003c\/li\u003e\n\u003cli\u003eAnti hot spot tape\u003c\/li\u003e\n\u003cli\u003eAssembly instructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Details\u003c\/h2\u003e\n\u003cp\u003eThe polytunnel is delivered flat packed for assembly. Installation is typically easier with two people and standard tools. Trench base models require ground preparation, while rail base models are secured using rails and anchors.\u003c\/p\u003e\n\u003cp\u003eOnce installed, the structure provides a sheltered and productive growing space for use throughout the season.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAvailable in 8ft, 10ft and 12ft widths\u003c\/li\u003e\n\u003cli\u003eChoice of trench base or rail base\u003c\/li\u003e\n\u003cli\u003eChoice of hinged or sliding door\u003c\/li\u003e\n\u003cli\u003eGalvanised steel frame construction\u003c\/li\u003e\n\u003cli\u003eUV stabilised cover for outdoor use\u003c\/li\u003e\n\u003cli\u003eSuitable for fruit, vegetables, herbs and seedlings\u003c\/li\u003e\n\u003cli\u003eDesigned for gardens, allotments and larger growing areas\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Gardening Naturally","offers":[{"title":"8ft \/ 10ft \/ Standard Door and Trench 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