{"product_id":"greenhouse-multi-span-tunnel","title":"Greenhouse | Multi-Span Tunnel","description":"\u003cp dir=\"auto\"\u003eDurable \u003cstrong\u003eMultispan Greenhouse Tunnels\u003c\/strong\u003e for Large-Scale Commercial Farming in South Africa – \u003cstrong\u003eMultispan Greenhouses for Sale\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eTake your commercial agriculture to the next level with our premium \u003cstrong\u003emultispan greenhouse tunnels\u003c\/strong\u003e, purpose-built for South African farmers requiring expansive, high-efficiency growing spaces. These advanced \u003cstrong\u003emulti-span structures\u003c\/strong\u003e connect multiple tunnel bays into one seamless, large-scale unit—sharing internal supports for maximized land use, superior climate control, and uniform environmental management. Available in robust \u003cstrong\u003emild steel\u003c\/strong\u003e or \u003cstrong\u003egalvanized steel\u003c\/strong\u003e options, our \u003cstrong\u003emultispan greenhouse tunnels\u003c\/strong\u003e excel in harsh weather, delivering exceptional durability, optimal crop protection, and year-round high-yield production. Perfect for extensive vegetable farming, hydroponics, nursery operations, tomatoes, herbs, flowers, exotic crops, and more.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Structural Features\u003c\/strong\u003e Engineered for strength, scalability, and longevity, our \u003cstrong\u003emultispan greenhouse tunnels\u003c\/strong\u003e include:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpright\/slightly angled side poles\u003c\/strong\u003e: 48mm x 1.6mm round pipe for enhanced stability and superior wind resistance across wide spans.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArches\u003c\/strong\u003e: 38mm x 1.6mm round pipe, creating a strong, interconnected curved framework capable of supporting heavy loads over larger areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTie beams\u003c\/strong\u003e and \u003cstrong\u003econnecting poles\u003c\/strong\u003e (top, corners, gutters, and others): All 38mm x 1.6mm round pipe for robust assembly, structural integrity, and efficient multi-bay integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteel quality\u003c\/strong\u003e: Manufactured to SAE 1008 standards, with \u003cstrong\u003ehot-dip galvanization\u003c\/strong\u003e (for galvanized options) ensuring outstanding corrosion resistance and a significantly extended lifespan in demanding South African conditions, including Gauteng's variable climate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePremium Covering\u003c\/strong\u003e Enclosed with imported 200-micron \u003cstrong\u003eLONG LIFE greenhouse plastic\u003c\/strong\u003e—a high-performance 3-layer material featuring added nickel for exceptional \u003cstrong\u003eUV protection\u003c\/strong\u003e, optimal light diffusion, and long-term durability. This covering ensures stable temperatures, controlled humidity, healthy plant development, and reduced replacement frequency, making it ideal for large commercial setups.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eAvailable Configurations and Customization\u003c\/strong\u003e Our \u003cstrong\u003emultispan greenhouse tunnels\u003c\/strong\u003e provide versatile, scalable solutions tailored to commercial needs (note: not all sizes or bay configurations include every upgrade—contact us to confirm options for your project):\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard multispan tunnel\u003c\/strong\u003e – Efficient connected structure for reliable, expansive protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultispan with roll-up windows\u003c\/strong\u003e – Improved natural ventilation through side roll-ups for better airflow and temperature regulation in larger spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultispan with full irrigation included\u003c\/strong\u003e – Precision drip system integrated for uniform watering across extensive areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultispan with roll-up windows and complete irrigation system installation\u003c\/strong\u003e – Comprehensive turnkey package for ultimate efficiency, automation, and resource savings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eDesigned for large-scale operations, common configurations include wide multi-bay setups such as \u003cstrong\u003e20m, 30m, or larger widths\u003c\/strong\u003e (e.g., dual-bay 20m x 30m+, tri-bay 30m+, and beyond), offering vast growing areas while optimizing space and climate consistency.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eOptional Advanced Irrigation System\u003c\/strong\u003e Enhance productivity with our customized \u003cstrong\u003edrip irrigation for multispan greenhouse tunnels\u003c\/strong\u003e, engineered for precision and sustainability in water-scarce regions:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-volume 0.45kW chemical-resistant pump\u003c\/strong\u003e (mountable on a dedicated station or separately for flexibility in large installations).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump station\u003c\/strong\u003e featuring a 40mm inline screen filter with discharge valve, 40mm Baccarat solenoid valves (as required for multi-zone control), and Hunter irrigation computer for easy programming and automated schedules across expansive bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrip accessories\u003c\/strong\u003e: Irritec 4L\/h or 8L\/h drippers, 4-way manifolds, 2L\/h dripper arrows, and flexible 3x5mm piping for even, leak-proof moisture distribution to every row.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThis system drastically cuts evaporation, eliminates overwatering, lowers labor demands, and promotes eco-friendly practices ideal for high-volume commercial farming.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhy Choose Our Multispan Greenhouse Tunnels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum space efficiency\u003c\/strong\u003e: Connected bays eliminate wasted land between units, enable single-system climate\/irrigation control, and support higher yields per hectare compared to single-span tunnels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnmatched durability\u003c\/strong\u003e: Galvanized steel options deliver exceptional rust protection and wind resistance, outperforming non-galvanized alternatives in South Africa's tough outdoor environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-effective and sustainable\u003c\/strong\u003e: LONG LIFE plastic plus efficient irrigation reduce water, energy, and maintenance costs over time—ideal for scaling operations profitably.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully versatile\u003c\/strong\u003e: Customize for commercial-scale tomatoes, berries, flowers, or specialized crops—grow bigger, smarter, and more consistently.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eReady to upgrade to a high-performance \u003cstrong\u003emultispan greenhouse tunnel for sale\u003c\/strong\u003e that maximizes your farm's potential? Contact us today for competitive pricing, detailed customization, bay configuration advice, and expert guidance on \u003cstrong\u003egalvanized steel multispan tunnels\u003c\/strong\u003e, \u003cstrong\u003emild steel options\u003c\/strong\u003e, roll-up ventilation, and integrated irrigation systems. Scale up your success—reach out now and cultivate more efficiently!\u003c\/p\u003e","brand":"Agri Tunnels","offers":[{"title":"Mild Steel \/ 30m x 20m x 4m (Standard)","offer_id":47693270614254,"sku":"GH-MULTI-MS-30X20X4-STANDARD","price":200000.0,"currency_code":"ZAR","in_stock":true},{"title":"Mild Steel \/ 30m x 30m x 4m (Standard)","offer_id":47693270647022,"sku":"GH-MULTI-MS-30X30X4-STANDARD","price":300000.0,"currency_code":"ZAR","in_stock":true},{"title":"Mild Steel \/ 30m x 20m x 4m (Roll-Up)","offer_id":47693270679790,"sku":"GH-MULTI-MS-30X20X4-ROLLUP","price":220000.0,"currency_code":"ZAR","in_stock":true},{"title":"Mild Steel \/ 30m x 30m x 4m (Roll-Up)","offer_id":47693270712558,"sku":"GH-MULTI-MS-30X30X4-ROLLUP","price":330000.0,"currency_code":"ZAR","in_stock":true},{"title":"Mild Steel \/ 30m x 20m x 4m (Incl. 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