{"title":"Polycarbonate polytunnels","description":"\u003cp\u003eFor growers who want an arched growing space with fixed panels, these SteelRoot polycarbonate polytunnels use twin-wall sheets on galvanised steel profiles. A film tunnel has flexible polythene stretched over hoops. Start with the width your garden can take, then check the base plan for your chosen length. The curve of the roof matters when planning tall crops beside the beds.\u003c\/p\u003e","products":[{"product_id":"steelroot-3-14m-galvanised-steel-arch-greenhouse","title":"SteelRoot Plot 3.14 Galvanised Steel Arch Greenhouse, Twin-Wall Polycarbonate, Walk-In","description":"\u003cdiv class=\"sr-desc\"\u003e\n  \u003cp class=\"sr-lead\"\u003eA galvanised-steel arch greenhouse, 3.00 m on the ground and 3.14 m at its widest, with screw-fixed twin-wall polycarbonate.\u003c\/p\u003e\n  \u003cul class=\"sr-specs\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFrame\u003c\/span\u003e\u003cspan\u003eClosed 40 × 20 mm RHS steel, ZAM coating\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eGlazing\u003c\/span\u003e\u003cspan\u003eScrew-fixed twin-wall polycarbonate\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eArch\u003c\/span\u003e\u003cspan\u003e1.0 m standard arch spacing; 0.67 m close-arch option\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFoundation\u003c\/span\u003e\u003cspan\u003eGround anchors are standard, so no concrete foundation is required. For extra stability, we recommend a firm, level base.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eIncluded\u003c\/span\u003e\u003cspan\u003eGround anchors and gable-door cross-ventilation\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eOptional\u003c\/span\u003e\u003cspan\u003eRoof auto-vents\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp class=\"sr-promise\"\u003e\u003cstrong\u003eUK mainland delivery included\u003c\/strong\u003e, typically within 1–4 weeks. Backed by our published frame and panel warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sr-desc\"\u003e\n\u003ch3 style=\"font-size:18px;font-weight:700;margin:28px 0 14px;color:rgb(31,58,42);\"\u003eAbout the SteelRoot arched polycarbonate greenhouse\u003c\/h3\u003e\n\u003cp\u003eSteelRoot is a walk-in arched greenhouse on a closed galvanised steel frame in rectangular hollow-section tube, clad in screw-fixed twin-wall polycarbonate in your choice of 4 or 6 mm. SteelRoot starts with 1.0 m standard arch spacing, with 0.67 m available as a close-arch option for more exposed plots. Screw-fixed panels stay seated where spring clips work loose, and the closed steel sections shed water instead of trapping it.\u003c\/p\u003e\n\u003cp\u003eFive lengths share one arch profile and width, so you choose by how you grow. The shortest suits a small garden or a first walk-in greenhouse, with room for staging down one side. The middle lengths carry a season of tomatoes, cucumbers and overwintering pots for a busy household plot. The longest runs give an allotment or a market garden a full bench either side and a clear central path.\u003c\/p\u003e\n\u003cp\u003eIt suits a grower who wants a polycarbonate greenhouse that stays put and stays clear: keen gardeners moving up from a small frame, allotment holders on an exposed site, and anyone who would rather fit twin-wall panels with a screwdriver than handle glass. Ground anchors are standard, so no concrete foundation is required. For extra stability, we recommend a firm, level base.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003csection class=\"wh-seo-block wh-steelroot-seo-architecture\"\u003e\n  \u003ch2\u003eSteelRoot arched polycarbonate greenhouse: the quick answer\u003c\/h2\u003e\n  \u003cp\u003eSteelRoot is the Waldenhaus galvanised steel arch greenhouse for growers who want a larger, practical structure without a film-cover replacement cycle. The frame uses 40 × 20 mm RHS galvanised steel with ZAM coating (zinc-aluminium-magnesium), screw-fixed twin-wall polycarbonate and a modular arched form for serious growing space.\u003c\/p\u003e\n  \u003cp\u003eTo compare lengths and options, see the \u003ca href=\"\/collections\/all-metal-greenhouses\"\u003eSteelRoot range\u003c\/a\u003e. Weighing up a polytunnel? Read our \u003ca href=\"\/blogs\/news\/polytunnel-vs-greenhouse-uk\"\u003epolytunnel vs greenhouse guide\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eCommon questions\u003c\/h3\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eIs SteelRoot an arched polycarbonate greenhouse?\u003c\/dt\u003e\n    \u003cdd\u003eYes. It is an arched greenhouse clad in twin-wall polycarbonate, designed as a more permanent alternative to a film polytunnel for UK gardens and growing plots.\u003c\/dd\u003e\n    \u003cdt\u003eIs it a galvanised steel greenhouse?\u003c\/dt\u003e\n    \u003cdd\u003eYes. The frame is galvanised steel with ZAM coating (zinc-aluminium-magnesium).\u003c\/dd\u003e\n    \u003cdt\u003eIs 6 mm polycarbonate standard?\u003c\/dt\u003e\n    \u003cdd\u003eNo. SteelRoot uses 4 mm twin-wall polycarbonate as standard, with 6 mm available as a glazing option.\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n","brand":"Waldenhaus","offers":[{"title":"10 × 13 ft","offer_id":53504499417430,"sku":"SRG-314-04","price":899.0,"currency_code":"GBP","in_stock":true},{"title":"10 × 20 ft","offer_id":53504499450198,"sku":"SRG-314-06","price":1099.0,"currency_code":"GBP","in_stock":true},{"title":"10 × 26 ft","offer_id":53504499482966,"sku":"SRG-314-08","price":1299.0,"currency_code":"GBP","in_stock":true},{"title":"10 × 33 ft","offer_id":53504499515734,"sku":"SRG-314-10","price":1599.0,"currency_code":"GBP","in_stock":true},{"title":"10 × 39 ft","offer_id":53504499548502,"sku":"SRG-314-12","price":1799.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5380\/3862\/files\/steelroot-plot-314-open-door-garden-path.jpg?v=1793688711"},{"product_id":"steelroot-wide-4m-greenhouse","title":"SteelRoot Grand 4.00 Galvanised Steel Arch Greenhouse, Twin-Wall Polycarbonate, Walk-In","description":"\u003cdiv class=\"sr-desc\"\u003e\n  \u003cp class=\"sr-lead\"\u003eThe widest SteelRoot: a 4.00 m galvanised-steel arch greenhouse with screw-fixed twin-wall polycarbonate.\u003c\/p\u003e\n  \u003cul class=\"sr-specs\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFrame\u003c\/span\u003e\u003cspan\u003eClosed 40 × 20 mm RHS steel, ZAM coating (zinc-aluminium-magnesium)\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eGlazing\u003c\/span\u003e\u003cspan\u003eScrew-fixed twin-wall polycarbonate, 4 mm standard, 6 mm option\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eArch\u003c\/span\u003e\u003cspan\u003e1.0 m standard arch spacing; 0.67 m close-arch option\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFoundation\u003c\/span\u003e\u003cspan\u003eGround anchors are standard, so no concrete foundation is required. For extra stability, we recommend a firm, level base.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eIncluded\u003c\/span\u003e\u003cspan\u003eGround anchors and rear-window cross-ventilation\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eOptional\u003c\/span\u003e\u003cspan\u003eRoof auto-vents; Solid Extension Module (+2 m)\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp class=\"sr-promise\"\u003e\u003cstrong\u003eUK mainland delivery included\u003c\/strong\u003e, typically within 1–4 weeks. Backed by our published frame and panel warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sr-desc\"\u003e\n\u003ch3 style=\"font-size:18px;font-weight:700;margin:28px 0 14px;color:rgb(31,58,42);\"\u003eAbout the SteelRoot Grand 4.00 arched polycarbonate greenhouse\u003c\/h3\u003e\n\u003cp\u003eThe Grand 4.00 is the widest greenhouse in the SteelRoot range: 4.00 m across and 2.30 m to the ridge, on the same closed galvanised steel arch as the rest of the line, in rectangular hollow-section tube, clad in screw-fixed twin-wall polycarbonate in your choice of 4 or 6 mm. The extra width is the point: enough to run staging down both sides and still wheel a barrow up the middle, or to set three growing rows where a narrower house takes two. Screw-fixed panels stay seated where spring clips work loose, and the closed steel sections shed water instead of trapping it.\u003c\/p\u003e\n\u003cp\u003eFive lengths share one width and arch profile, so you choose by how you grow. The shortest, at 4 m and 16 m², suits a generous private garden that wants real walk-around space and full standing headroom. The middle lengths carry a season of tomatoes, cucumbers and overwintering pots for a busy household plot, with room to work down both sides. The longest runs, up to 12 m and 48 m², give an allotment or a market garden a full bench either side and a clear central path.\u003c\/p\u003e\n\u003cp\u003eIt suits serious growers and shared plots that have the ground for a wider house and want to use every inch of it: keen gardeners moving up from a narrower frame, allotment holders working both sides, and anyone who would rather fit twin-wall panels with a screwdriver than handle glass. Ground anchors are standard, so no concrete foundation is required. For extra stability, we recommend a firm, level base.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003csection class=\"wh-seo-block wh-steelroot-seo-architecture\"\u003e\n  \u003ch2\u003eSteelRoot Grand 4.00 arched polycarbonate greenhouse: the quick answer\u003c\/h2\u003e\n  \u003cp\u003eThe SteelRoot Grand 4.00 is the widest Waldenhaus galvanised steel arch greenhouse for growers who want a larger, practical structure without a film-cover replacement cycle. It is 4.00 m across and 2.30 m to the ridge, with a frame of 40 × 20 mm RHS galvanised steel with ZAM coating (zinc-aluminium-magnesium), screw-fixed twin-wall polycarbonate (4 mm standard, 6 mm option) and a modular arched form for serious growing space.\u003c\/p\u003e\n  \u003cp\u003eTo compare lengths and options, see the \u003ca href=\"\/collections\/all-metal-greenhouses\"\u003eSteelRoot range\u003c\/a\u003e or the \u003ca href=\"\/products\/steelroot-3-14m-galvanised-steel-arch-greenhouse\"\u003enarrower SteelRoot Plot 3.14\u003c\/a\u003e side by side. Weighing up a polytunnel? Read our \u003ca href=\"\/blogs\/news\/polytunnel-vs-greenhouse-uk\"\u003epolytunnel vs greenhouse guide\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eGrand 4.00: common questions\u003c\/h3\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eHow wide is the SteelRoot Grand 4.00?\u003c\/dt\u003e\n    \u003cdd\u003e4.00 m across and 2.30 m to the ridge: the widest in the SteelRoot range, with room for staging both sides and a clear central path, available in five lengths from 4 m (16 m²) to 12 m (48 m²).\u003c\/dd\u003e\n    \u003cdt\u003eIs it a galvanised steel greenhouse?\u003c\/dt\u003e\n    \u003cdd\u003eYes. The frame is galvanised steel with ZAM coating (zinc-aluminium-magnesium).\u003c\/dd\u003e\n    \u003cdt\u003eIs 6 mm polycarbonate standard?\u003c\/dt\u003e\n    \u003cdd\u003eNo. The Grand 4.00 uses 4 mm twin-wall polycarbonate as standard, with 6 mm available as a glazing option.\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\u003c!--cb:1782887694--\u003e","brand":"Waldenhaus","offers":[{"title":"13 × 13 ft","offer_id":54383328887126,"sku":"SRG-4-04","price":1299.0,"currency_code":"GBP","in_stock":true},{"title":"13 × 20 ft","offer_id":54383328919894,"sku":"SRG-4-06","price":1499.0,"currency_code":"GBP","in_stock":true},{"title":"13 × 26 ft","offer_id":54383328952662,"sku":"SRG-4-08","price":1699.0,"currency_code":"GBP","in_stock":true},{"title":"13 × 33 ft","offer_id":54383328985430,"sku":"SRG-4-10","price":1949.0,"currency_code":"GBP","in_stock":true},{"title":"13 × 39 ft","offer_id":54383329018198,"sku":"SRG-4-12","price":2199.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5380\/3862\/files\/A3_e4m-summer-5.jpg?v=1785170279"},{"product_id":"steelroot-climber-2-10-greenhouse","title":"SteelRoot Climber 2.10 Galvanised Steel Greenhouse, Narrow Arch, Twin-Wall Polycarbonate, Walk-In","description":"\u003cdiv class=\"sr-desc\"\u003e\n  \u003cp class=\"sr-lead\"\u003eA tall, narrow galvanised-steel arch greenhouse: the one built for climbing crops.\u003c\/p\u003e\n  \u003cp class=\"sr-usp-intro\"\u003eAt 2.10 m wide the Climber slips into a side return or the strip along a fence where a full-width greenhouse will not go: yet you walk in under a 2.30 m ridge, with the height to train cucumbers, tomatoes and beans straight up.\u003c\/p\u003e\n  \u003cul class=\"sr-usp\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFits the tight spots\u003c\/strong\u003e: 2.10 m across, for side returns and fence lines.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeight to climb\u003c\/strong\u003e: a 2.30 m ridge, so tall crops go up rather than along.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNo cover to replace\u003c\/strong\u003e: rigid twin-wall polycarbonate, not polythene film.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGrows with the plot\u003c\/strong\u003e: five lengths, 4 m to 12 m, from £949.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cul class=\"sr-specs\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFrame\u003c\/span\u003e\u003cspan\u003eClosed 40 × 20 mm RHS steel, ZAM coating\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eGlazing\u003c\/span\u003e\u003cspan\u003eScrew-fixed twin-wall polycarbonate, 4 mm standard, 6 mm option\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eArch\u003c\/span\u003e\u003cspan\u003e1.0 m standard spacing; 0.67 m close-arch option for exposed plots\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFootprint\u003c\/span\u003e\u003cspan\u003e2.10 m wide × 2.30 m to the ridge; five lengths, 4–12 m\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFoundation\u003c\/span\u003e\u003cspan\u003eGround anchors included, so no concrete foundation is required\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eIncluded\u003c\/span\u003e\u003cspan\u003eGround anchors and an opening window in each arched door\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eOptional\u003c\/span\u003e\u003cspan\u003e6 mm glazing; 0.67 m close-arch spacing; roof auto-vents at £99 each\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eWarranty\u003c\/span\u003e\u003cspan\u003e2-year manufacturing defect warranty on cellular polycarbonate panels + 10-year anti-corrosion warranty on the galvanised steel frame\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp class=\"sr-promise\"\u003e\u003cstrong\u003eMade to order, delivered to your kerb, typically within 1–4 weeks.\u003c\/strong\u003e Flat-packed on one pallet with a labelled parts box and ground anchors. Surcharges apply to the Scottish Highlands and addresses off the UK mainland.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sr-desc\"\u003e\n\u003ch3 style=\"font-size:18px;font-weight:700;margin:28px 0 14px;color:rgb(31,58,42);\"\u003eAbout the SteelRoot Climber 2.10 narrow-arch polycarbonate greenhouse\u003c\/h3\u003e\n\u003cp\u003eThe Climber 2.10 is the narrowest greenhouse in the SteelRoot range, from £949. It sits on the same closed galvanised steel arch as the rest of the range: 40 × 20 mm rectangular hollow-section tube with a ZAM coating (zinc-aluminium-magnesium): clad in screw-fixed twin-wall polycarbonate in 4 or 6 mm. Panels are fixed with stainless screws and EPDM washers rather than spring clips, and the closed sections shed water instead of trapping it.\u003c\/p\u003e\n\u003cp\u003eMost buyers at this size are also weighing a polytunnel. A tunnel of a similar footprint is cheaper on day one, typically £400–£1,000, but the cover is a consumable: allow £200–£400 and a day of re-trenching every five to seven years. Tensioned film is also turned down by many allotment committees and in conservation areas on appearance alone. The Climber is one purchase, with a rigid twin-wall skin and no cover to buy again.\u003c\/p\u003e\n\u003cp\u003eFive lengths share one span and one arch profile: 4 m for a first walk-in greenhouse against a fence, 6 m and 8 m for a season of tomatoes and cucumbers, 10 m and 12 m for an allotment strip where the width is fixed but the length is not. Ground anchors are standard, so no concrete foundation is required. For extra stability, we recommend a firm, level base.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003csection class=\"wh-seo-block wh-steelroot-seo-architecture\"\u003e\n  \u003ch2\u003eSteelRoot Climber 2.10 narrow polycarbonate greenhouse: the quick answer\u003c\/h2\u003e\n  \u003cp\u003eThe narrowest Waldenhaus galvanised steel arch greenhouse: 2.10 m across, 2.30 m to the ridge, five lengths 4–12 m, from £949, in screw-fixed twin-wall polycarbonate on a ZAM-coated frame.\u003c\/p\u003e\n  \u003cp\u003eCompare the line on the \u003ca href=\"\/collections\/all-metal-greenhouses\"\u003eSteelRoot range page\u003c\/a\u003e, or the wider \u003ca href=\"\/products\/steelroot-garden-2-64-greenhouse\"\u003eSteelRoot Garden 2.64\u003c\/a\u003e. Weighing up a polytunnel? Read our \u003ca href=\"\/blogs\/news\/polytunnel-vs-greenhouse-uk\"\u003epolytunnel vs greenhouse guide\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eClimber 2.10: common questions\u003c\/h3\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eWhy pay this much instead of a polytunnel for the same growing area?\u003c\/dt\u003e\n    \u003cdd\u003eA polytunnel costs less upfront, typically £400–£1,000 for an equivalent footprint. Over a decade that rebalances: the cover needs replacing every five to seven years at £200–£400 plus a day of re-trenching. If you want the lowest cost per square metre, a polytunnel remains a sensible answer.\u003c\/dd\u003e\n    \u003cdt\u003eDo I need a concrete base?\u003c\/dt\u003e\n    \u003cdd\u003eNo. Ground anchors are standard. We do recommend a firm, level base.\u003c\/dd\u003e\n    \u003cdt\u003eHow long does delivery take, and what is covered?\u003c\/dt\u003e\n    \u003cdd\u003eTypically 1–4 weeks, delivered kerbside, with a 2-year manufacturing defect warranty on cellular polycarbonate panels + 10-year anti-corrosion warranty on the galvanised steel frame. See \u003ca href=\"\/pages\/warranty\"\u003eour warranty page\u003c\/a\u003e.\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e","brand":"Waldenhaus","offers":[{"title":"7 × 13 ft","offer_id":54729641034070,"sku":"SRC-C210-04","price":949.0,"currency_code":"GBP","in_stock":true},{"title":"7 × 20 ft","offer_id":54729641099606,"sku":"SRC-C210-06","price":1099.0,"currency_code":"GBP","in_stock":true},{"title":"7 × 26 ft","offer_id":54729641165142,"sku":"SRC-C210-08","price":1299.0,"currency_code":"GBP","in_stock":true},{"title":"7 × 33 ft","offer_id":54729641197910,"sku":"SRC-C210-10","price":1599.0,"currency_code":"GBP","in_stock":true},{"title":"7 × 39 ft","offer_id":54729641230678,"sku":"SRC-C210-12","price":1799.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5380\/3862\/files\/02-steelroot-climber-210-greenhouse-2m-door-ajar-tomatoes-basil-surrey-garden.jpg?v=1790439278"},{"product_id":"steelroot-garden-2-64-greenhouse","title":"SteelRoot Garden Galvanised Steel Greenhouse, Compact Arch, Twin-Wall Polycarbonate, Walk-In","description":"\u003cdiv class=\"sr-desc\"\u003e\n  \u003cp class=\"sr-lead\"\u003eA compact galvanised-steel arch greenhouse: the easy all-rounder of the SteelRoot range.\u003c\/p\u003e\n  \u003cp class=\"sr-usp-intro\"\u003eAt 2.64 m wide the Garden is a proper walk-in: two beds and a full central path: yet tidy enough for an ordinary back garden, under a 2.03 m ridge in the Standard width. Choose Standard 2.64 m or Wide 2.99 m.\u003c\/p\u003e\n  \u003cul class=\"sr-usp\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThe right size\u003c\/strong\u003e: 2.64 m for two beds and a full central path.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOr a little wider\u003c\/strong\u003e: a Wide 2.99 m version of the same model.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNo cover to replace\u003c\/strong\u003e: rigid twin-wall polycarbonate, not polythene film.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFive lengths\u003c\/strong\u003e: 4 m to 12 m on one arch profile, from £949.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cul class=\"sr-specs\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFrame\u003c\/span\u003e\u003cspan\u003eClosed 40 × 20 mm RHS steel, ZAM coating\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eGlazing\u003c\/span\u003e\u003cspan\u003eScrew-fixed twin-wall polycarbonate, 4 mm standard, 6 mm option\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eArch\u003c\/span\u003e\u003cspan\u003e1.0 m standard spacing; 0.67 m close-arch option for exposed plots\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eWidth\u003c\/span\u003e\u003cspan\u003eStandard 2.64 m (2.03 m to the ridge) or Wide 2.99 m\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eFoundation\u003c\/span\u003e\u003cspan\u003eGround anchors included, so no concrete foundation is required\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eIncluded\u003c\/span\u003e\u003cspan\u003eGround anchors and an opening window in each arched door\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eOptional\u003c\/span\u003e\u003cspan\u003e6 mm glazing; 0.67 m close-arch spacing; roof auto-vents at £99 each\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"sr-k\"\u003eWarranty\u003c\/span\u003e\u003cspan\u003e2-year manufacturing defect warranty on cellular polycarbonate panels + 10-year anti-corrosion warranty on the galvanised steel frame\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp class=\"sr-promise\"\u003e\u003cstrong\u003eMade to order, delivered to your kerb, typically within 1–4 weeks.\u003c\/strong\u003e Flat-packed on one pallet with a labelled parts box and ground anchors. Surcharges apply to the Scottish Highlands and addresses off the UK mainland.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"sr-desc\"\u003e\n\u003ch3 style=\"font-size:18px;font-weight:700;margin:28px 0 14px;color:rgb(31,58,42);\"\u003eAbout the SteelRoot Garden 2.64 compact arch polycarbonate greenhouse\u003c\/h3\u003e\n\u003cp\u003eThe Garden 2.64 is the compact all-rounder of the range, from £949: 2.64 m across and 2.03 m to the ridge in the Standard width, with a Wide 2.99 m version for plots that can spare the extra half metre. The frame is the closed galvanised steel used across the line: 40 × 20 mm rectangular hollow-section tube with a ZAM coating (zinc-aluminium-magnesium), clad in screw-fixed twin-wall polycarbonate, 4 or 6 mm, with stainless screws and EPDM washers rather than spring clips.\u003c\/p\u003e\n\u003cp\u003eAt this size the honest comparison is a polytunnel. A tunnel of a similar footprint costs less on day one, typically £400–£1,000, but the cover is a consumable: allow £200–£400 and a day of re-trenching every five to seven years. Tensioned film is also turned down by many allotment committees and in conservation areas on appearance alone. The Garden is one purchase, with no cover to buy again.\u003c\/p\u003e\n\u003cp\u003eFive lengths share one arch profile: 4 m for a first real walk-in greenhouse, 6 m and 8 m for a full season of tomatoes and cucumbers, 10 m and 12 m for an allotment with a bench either side. Ground anchors are standard, so no concrete foundation is required. For extra stability, we recommend a firm, level base.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003csection class=\"wh-seo-block wh-steelroot-seo-architecture\"\u003e\n  \u003ch2\u003eSteelRoot Garden 2.64 compact polycarbonate greenhouse: the quick answer\u003c\/h2\u003e\n  \u003cp\u003eThe compact Waldenhaus galvanised steel arch greenhouse: 2.64 m across, 2.03 m to the ridge, a Wide 2.99 m version, five lengths 4–12 m, from £949, in screw-fixed twin-wall polycarbonate on a ZAM-coated frame.\u003c\/p\u003e\n  \u003cp\u003eCompare the line on the \u003ca href=\"\/collections\/all-metal-greenhouses\"\u003eSteelRoot range page\u003c\/a\u003e, the narrow \u003ca href=\"\/products\/steelroot-climber-2-10-greenhouse\"\u003eClimber 2.10\u003c\/a\u003e, or the straight-walled \u003ca href=\"\/products\/steelroot-gable-2-77-greenhouse\"\u003eGable 2.77\u003c\/a\u003e. Weighing up a polytunnel? Read our \u003ca href=\"\/blogs\/news\/polytunnel-vs-greenhouse-uk\"\u003epolytunnel vs greenhouse guide\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eGarden 2.64: common questions\u003c\/h3\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eWhy pay this much instead of a polytunnel for the same growing area?\u003c\/dt\u003e\n    \u003cdd\u003eA polytunnel costs less upfront, typically £400–£1,000 for an equivalent footprint. Over a decade that rebalances: the cover needs replacing every five to seven years at £200–£400 plus a day of re-trenching. For the lowest cost per square metre, a polytunnel is still a fair answer.\u003c\/dd\u003e\n    \u003cdt\u003eHow wide is it, and what is the Wide version?\u003c\/dt\u003e\n    \u003cdd\u003eStandard is 2.64 m across and 2.03 m to the ridge: two growing beds and a full central path. Wide is 2.99 m across, in the same five lengths.\u003c\/dd\u003e\n    \u003cdt\u003eHow long does delivery take, and what is covered?\u003c\/dt\u003e\n    \u003cdd\u003eTypically 1–4 weeks, delivered kerbside, with a 2-year manufacturing defect warranty on cellular polycarbonate panels + 10-year anti-corrosion warranty on the galvanised steel frame. See \u003ca href=\"\/pages\/warranty\"\u003eour warranty page\u003c\/a\u003e.\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e","brand":"Waldenhaus","offers":[{"title":"Standard \/ 4 m","offer_id":54773180465494,"sku":"SRGDN264-04","price":949.0,"currency_code":"GBP","in_stock":true},{"title":"Standard \/ 6 m","offer_id":54773180498262,"sku":"SRGDN264-06","price":1199.0,"currency_code":"GBP","in_stock":true},{"title":"Standard \/ 8 m","offer_id":54773180531030,"sku":"SRGDN264-08","price":1299.0,"currency_code":"GBP","in_stock":true},{"title":"Standard \/ 10 m","offer_id":54773180563798,"sku":"SRGDN264-10","price":1699.0,"currency_code":"GBP","in_stock":true},{"title":"Standard \/ 12 m","offer_id":54773180596566,"sku":"SRGDN264-12","price":1899.0,"currency_code":"GBP","in_stock":true},{"title":"Wide \/ 4 m","offer_id":54773180629334,"sku":"SRGDN299-04","price":1049.0,"currency_code":"GBP","in_stock":true},{"title":"Wide \/ 6 m","offer_id":54773180662102,"sku":"SRGDN299-06","price":1299.0,"currency_code":"GBP","in_stock":true},{"title":"Wide \/ 8 m","offer_id":54773180694870,"sku":"SRGDN299-08","price":1399.0,"currency_code":"GBP","in_stock":true},{"title":"Wide \/ 10 m","offer_id":54773180727638,"sku":"SRGDN299-10","price":1799.0,"currency_code":"GBP","in_stock":true},{"title":"Wide \/ 12 m","offer_id":54773180760406,"sku":"SRGDN299-12","price":1949.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5380\/3862\/files\/steelroot-garden-2-64-greenhouse-hero-square.jpg?v=1784698121"}],"url":"https:\/\/waldenhaus.uk\/collections\/polycarbonate-polytunnels.oembed","provider":"waldenhaus","version":"1.0","type":"link"}