{"product_id":"polytunnel-greenhouse-large-sigma","title":"Polycarbonate Greenhouse with Reinforced Steel Frame","description":"\u003cp\u003eThe Sigma Lux greenhouse is built to provide a stable and protected growing space for plants across a range of weather conditions. Its combination of steel, aluminium and polycarbonate materials supports consistent growing throughout the year.\u003c\/p\u003e\n\u003cp\u003eSuitable for use in both UK and Irish climates, it offers a reliable environment for cultivating vegetables, herbs and flowers in gardens and allotments.\u003c\/p\u003e\n\n\u003ch2\u003eKey Benefits of This Greenhouse\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReinforced steel frame designed to withstand wind and snow conditions\u003c\/li\u003e\n\u003cli\u003eAlu-zinc coated structure to help reduce corrosion outdoors\u003c\/li\u003e\n\u003cli\u003e6mm polycarbonate panels support insulation and temperature consistency\u003c\/li\u003e\n\u003cli\u003eAluminium end frames, doors and vents that do not rust\u003c\/li\u003e\n\u003cli\u003eModular design allows the greenhouse length to be extended\u003c\/li\u003e\n\u003cli\u003eVentilation options available for airflow and climate control\u003c\/li\u003e\n\u003cli\u003eSuitable for vegetables, herbs and flower growing all year round\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAvailable Greenhouse Sizes\u003c\/h2\u003e\n\u003cp\u003eChoose from a range of widths and lengths to suit your space:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2m Wide:\u003c\/strong\u003e 2m, 4m, 6m, 8m, 10m, 12m lengths\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.5m Wide:\u003c\/strong\u003e 4m, 6m, 8m, 10m, 12m lengths\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3m Wide:\u003c\/strong\u003e 4m, 6m, 8m, 10m, 12m lengths\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReinforced Steel Frame with Alu-Zinc Coating\u003c\/h2\u003e\n\u003cp\u003eThe frame is made from a 20 x 40 mm steel profile with a thickness of 1 mm, forming a strong and stable structure. The alu-zinc coating, made from aluminium, zinc and silicon, helps protect against corrosion and outdoor exposure.\u003c\/p\u003e\n\n\u003ch2\u003e6mm Polycarbonate Panels for Insulation\u003c\/h2\u003e\n\u003cp\u003eFitted with 6mm polycarbonate panels, the greenhouse helps retain heat while allowing light to pass through evenly. This supports plant growth within a more controlled environment.\u003c\/p\u003e\n\n\u003ch2\u003eAluminium Doors End Walls and Ventilation\u003c\/h2\u003e\n\u003cp\u003eThe end walls, doors and vents are constructed from aluminium, providing strength without the risk of rust. Ventilation options allow airflow adjustment to help manage temperature and humidity.\u003c\/p\u003e\n\n\u003ch2\u003eEasy Assembly with Ground Anchor System\u003c\/h2\u003e\n\u003cp\u003eThe greenhouse is designed for straightforward assembly with a clear instruction manual included. T-shaped anchors fix directly into the ground, removing the need for a separate base.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e20 x 40 mm reinforced steel frame, 1 mm thickness\u003c\/li\u003e\n\u003cli\u003eAlu-zinc coated structure\u003c\/li\u003e\n\u003cli\u003e6mm polycarbonate covering\u003c\/li\u003e\n\u003cli\u003eAluminium end walls, doors and vents\u003c\/li\u003e\n\u003cli\u003eModular extension system\u003c\/li\u003e\n\u003cli\u003eSuitable for year round growing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e10 year warranty on the frame against through corrosion (subject to proper use and maintenance)\u003c\/li\u003e\n\u003cli\u003eFull manufacturer warranty included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs this greenhouse suitable for UK and Irish weather?\u003c\/h3\u003e\n\u003cp\u003eYes, the Sigma Lux greenhouse is designed for UK and Irish climates, with a reinforced frame and durable panels to handle wind, rain and snow.\u003c\/p\u003e\n\n\u003ch3\u003eDo I need a concrete base?\u003c\/h3\u003e\n\u003cp\u003eNo, the greenhouse includes a ground anchor system with T-shaped anchors, allowing it to be installed directly into the ground.\u003c\/p\u003e\n\n\u003ch3\u003eHow well does the greenhouse retain heat?\u003c\/h3\u003e\n\u003cp\u003eThe 6mm polycarbonate panels provide insulation, helping to maintain a more stable internal temperature during colder periods.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the greenhouse require maintenance?\u003c\/h3\u003e\n\u003cp\u003eThe alu-zinc coated steel frame and aluminium components are designed to resist corrosion, so only minimal maintenance is required.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Gardening Naturally","offers":[{"title":"2m x 2m","offer_id":56467966820678,"sku":"SIG222","price":890.0,"currency_code":"GBP","in_stock":true},{"title":"2m x 4m","offer_id":56467966853446,"sku":"SIG224","price":1120.0,"currency_code":"GBP","in_stock":true},{"title":"2m x 6m","offer_id":56467966886214,"sku":"SIG226","price":1350.0,"currency_code":"GBP","in_stock":true},{"title":"2m x 8m","offer_id":56467966918982,"sku":"SIG228","price":1570.0,"currency_code":"GBP","in_stock":true},{"title":"2m x 10m","offer_id":56467966951750,"sku":"SIG2210","price":1790.0,"currency_code":"GBP","in_stock":true},{"title":"2m x 12m","offer_id":56467966984518,"sku":"SIG2212","price":2050.0,"currency_code":"GBP","in_stock":true},{"title":"2.5m x 4m","offer_id":56467967017286,"sku":"SIG254","price":1120.0,"currency_code":"GBP","in_stock":true},{"title":"2.5m x 6m","offer_id":56467967050054,"sku":"SIG256","price":1350.0,"currency_code":"GBP","in_stock":true},{"title":"2.5m  x 8m","offer_id":56467967082822,"sku":"SIG258","price":1570.0,"currency_code":"GBP","in_stock":true},{"title":"2.5m  x 10m","offer_id":56467967115590,"sku":"SIG2510","price":1790.0,"currency_code":"GBP","in_stock":true},{"title":"2.5m  x 12m","offer_id":56467967148358,"sku":"SIG2512","price":2050.0,"currency_code":"GBP","in_stock":true},{"title":"3m x 4m","offer_id":56467967181126,"sku":"SIG34","price":1120.0,"currency_code":"GBP","in_stock":true},{"title":"3m x 6m","offer_id":56467967213894,"sku":"SIG36","price":1350.0,"currency_code":"GBP","in_stock":true},{"title":"3m x 8m","offer_id":56467967246662,"sku":"SIG38","price":1570.0,"currency_code":"GBP","in_stock":true},{"title":"3m x 10m","offer_id":56467967279430,"sku":"SIG310","price":1790.0,"currency_code":"GBP","in_stock":true},{"title":"3m x 12m","offer_id":56467967312198,"sku":"SIG312","price":2050.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/6623\/0598\/files\/large-polytunnel-greenhouse-outide.png?v=1777458731","url":"https:\/\/www.twowests.co.uk\/products\/polytunnel-greenhouse-large-sigma","provider":"Two Wests \u0026 Elliot","version":"1.0","type":"link"}