{"title":"Greenhouse Foundation \u0026 Anchoring","description":null,"products":[{"product_id":"canopia-hobby-grand-gardener-base-kit","title":"Palram - Canopia | Hobby\/Grand Gardener Base Kit","description":"\u003cp\u003eThe Palram - Canopia Base was engineered to provide additional stability or additional headroom for Palram - Canopia Greenhouse. Manufactured with heavy duty 100% UV-protected resins and engineered with a U-shape, honeycomb design for extra durability. Filled with soil this base kit provides a solid foundation and provides an additional 12cm (about 5 inches) of headroom and growing space. Like all Palram - Canopia products, the Base Kit assembles in a snap.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePush-fit assembly\u003c\/li\u003e\n\u003cli\u003eSnaps together quickly\u003c\/li\u003e\n\u003cli\u003eElevates greenhouse approximately five inches\u003c\/li\u003e\n\u003cli\u003eHeavy duty 100% UV-protected resin frame\u003c\/li\u003e\n\u003cli\u003eImproves greenhouse stability and durability\u003c\/li\u003e\n\u003cli\u003eWe always recommend anchoring your greenhouse properly with ground anchors, hurricane straps, a lumber base frame, a concrete perimeter footing, etc., especially in areas with strong winds\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Palram - Canopia","offers":[{"title":"8x8 ft","offer_id":40735466782869,"sku":"HG7130","price":358.99,"currency_code":"USD","in_stock":true},{"title":"8x12 ft","offer_id":40735466815637,"sku":"HG7131","price":468.99,"currency_code":"USD","in_stock":true},{"title":"8x16 ft","offer_id":40735466848405,"sku":"HG7132","price":558.99,"currency_code":"USD","in_stock":true},{"title":"8x20 ft","offer_id":40735466881173,"sku":"HG7133","price":658.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/products\/palram-canopia-greenhouse-accessories-8-x-8-palram-canopia-hobby-grand-gardener-base-kit-hg7130-31598250197141.jpg?v=1751051133"},{"product_id":"canopia-ecogrow-base-kit","title":"Palram - Canopia | EcoGrow Base Kit","description":"\u003cp\u003eThe Palram - Canopia Base was engineered to provide additional stability or additional headroom for \u003cstrong\u003eEcoGrow 2\u003c\/strong\u003e Greenhouses. Manufactured with heavy duty 100% UV-protected resins and engineered with a U-shape, honeycomb design for extra durability. Filled with soil this base kit provides a solid foundation that improves stability and durability against strong winds. The Base Kit can also be used to provide an additional five inches of headroom or additional growing space. Like all Palram - Canopia products, the Base Kit assembles in a snap.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePush-fit assembly\u003c\/li\u003e\n\u003cli\u003eSnaps together quickly\u003c\/li\u003e\n\u003cli\u003eElevates greenhouse up to five inches\u003c\/li\u003e\n\u003cli\u003eHeavy duty 100% UV-protected resin frame\u003c\/li\u003e\n\u003cli\u003eAreas with strong winds may require additional stakes or concrete footers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Palram - Canopia","offers":[{"title":"6x6 ft","offer_id":40735469797525,"sku":"HG7031","price":268.99,"currency_code":"USD","in_stock":true},{"title":"6x8 ft","offer_id":40735469830293,"sku":"HG7032","price":298.99,"currency_code":"USD","in_stock":true},{"title":"6x10 ft","offer_id":40735469863061,"sku":"HG7033","price":358.99,"currency_code":"USD","in_stock":true},{"title":"6x12 ft","offer_id":40735469895829,"sku":"HG7034","price":388.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/products\/palram-canopia-greenhouse-accessories-6-x-6-palram-canopia-ecogrow-base-kit-hg7031-31598255341717.jpg?v=1751051127"},{"product_id":"palram-canopia-anchor-kit-for-mythos-hybrid-essence-greenhouses","title":"Palram - Canopia | Anchor Kit for Mythos, Hybrid, Essence Greenhouses","description":"\u003cp\u003eEnsuring the safety and stability of your Palram - Canopia Nature Series (Mythos, Hybrid, Essence) greenhouse has never been easier. Proper anchoring is the ultimate way to prevent your greenhouse from becoming damaged from unstable weather, even if you don’t live in an area prone to high winds. The anchoring system offers the most effective, lightweight and economical solution to anchor your greenhouse.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAnchors greenhouse to the ground or foundation\u003c\/li\u003e\n\u003cli\u003eProvides extra stability and support against high winds and elements\u003c\/li\u003e\n\u003cli\u003eEasy installation over the top of your greenhouse\u003c\/li\u003e\n\u003cli\u003eWorks with Palram - Canopia Nature Series (Mythos, Hybrid, Essence) greenhouses\u003c\/li\u003e\n\u003cli\u003e1 Year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Palram - Canopia","offers":[{"title":"Default Title","offer_id":40735508398229,"sku":"HG1029","price":118.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/products\/palram-canopia-greenhouse-accessories-palram-canopia-anchor-kit-for-mythos-hybrid-essence-greenhouses-hg1029-31598326218901.jpg?v=1751051042"},{"product_id":"canopia-rion-hanging-anchoring-greenhouse-kit","title":"Palram - Canopia | Hanging \u0026 Anchoring Greenhouse Kit","description":"\u003cp\u003eThe Palram - Canopia Hanging \u0026amp; Anchoring Kit can be used for two different things. The hangers can be used to anchor your Palram - Canopia greenhouse to a wood or cement base. They can also be used from the roof framework to hang pots or string up vine crops.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for hanging plants, flowerpots and vine crops\u003c\/li\u003e\n\u003cli\u003eGround anchoring for strengthening the greenhouse\u003c\/li\u003e\n\u003cli\u003eSimply click and lock into profile channel\u003c\/li\u003e\n\u003cli\u003eEach bag includes 10 hangers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Palram - Canopia","offers":[{"title":"Default Title","offer_id":40735509348501,"sku":"HG1025","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/products\/palram-canopia-greenhouse-accessories-palram-canopia-hanging-anchoring-greenhouse-kit-hg1025-31598328840341.jpg?v=1751051039"},{"product_id":"hoklartherm-riga-2s-greenhouse-foundation-frame","title":"Hoklartherm | Riga Greenhouse 6 inch High Foundation Frame","description":"\n\u003cp\u003eThis 6\" high Foundation Frame only works with the \u003cstrong\u003eHoklartherm RIGA Greenhouses\u003c\/strong\u003e. It can be used to replace concrete or wooded footing. It will be buried in a trench to easily and securely anchor the whole greenhouse. This is a great option if other anchoring methods, such as concrete, are not desired or possible.\u003c\/p\u003e\n\u003cp\u003eNote:  When ordering this foundation frame without the Riga Greenhouse, it will cost extra.  Please contact us for a more accurate quote.\u003c\/p\u003e\n\u003ch6\u003eINSTALLATION VIDEO\u003c\/h6\u003e\n\u003cp\u003e\u003ciframe title=\"RIGA Greenhouse 6 inch High Foundation Frame Installation Video\" src=\"https:\/\/www.youtube.com\/embed\/VGGycKJlyTg\" class=\"responsive-video\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Hoklartherm","offers":[{"title":"RIGA S2 (7'8\" W x 7' L x 6\" H)","offer_id":42972916875413,"sku":"RIGA-IIS-BASE","price":700.0,"currency_code":"USD","in_stock":true},{"title":"RIGA S3 (7'8\" W x 10'6\" L x 6\" H)","offer_id":42972916908181,"sku":"RIGA-IIIS-BASE","price":891.0,"currency_code":"USD","in_stock":true},{"title":"RIGA S4 ( 7'8\" W x 14' L x 6\" H)","offer_id":42992444735637,"sku":"RIGA-IVS-BASE","price":1189.0,"currency_code":"USD","in_stock":true},{"title":"RIGA L3 (9'8\" W x 10'6\" L x 6\" H)","offer_id":42992298164373,"sku":"RIGA-III-BASE","price":1104.0,"currency_code":"USD","in_stock":true},{"title":"RIGA L4 (9'8\" W x 14' L x 6\" H)","offer_id":42992439459989,"sku":"RIGA-IV-BASE","price":1274.0,"currency_code":"USD","in_stock":true},{"title":"RIGA L5 (9'8\" W x 17'6\" L x 6\" H)","offer_id":42992693379221,"sku":"RIGA-V-BASE","price":1486.0,"currency_code":"USD","in_stock":true},{"title":"RIGA XL5 (14' W x 16'5\" L x 6\" H) (Special Order)","offer_id":43035437170837,"sku":"RIGA-XL-5-BASE","price":1784.0,"currency_code":"USD","in_stock":false},{"title":"RIGA XL6 (14' W x 19'10\" L x 6\" H)","offer_id":43039032279189,"sku":"RIGA-XL-6-BASE","price":1869.0,"currency_code":"USD","in_stock":true},{"title":"RIGA XL7 (14' W x 23' L x 6\" H) (Special Order)","offer_id":43070656905365,"sku":"RIGA-XL-7-BASE","price":2166.0,"currency_code":"USD","in_stock":false},{"title":"RIGA XL8 (14' W x 26'3\" L x 6\" H) (Special Order)","offer_id":43070656938133,"sku":"RIGA-XL-8-BASE","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"RIGA XL9 (14' W x 29'6\" L x 6\" H)","offer_id":43070656970901,"sku":"RIGA-XL-9-BASE","price":2676.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/products\/exaco-hoklartherm-riga-2s-greenhouse-foundation-frame-riga-iis-base-35601648877717.jpg?v=1751050380"},{"product_id":"hoklartherm-riga-door-extension-kit","title":"Hoklartherm | Riga Greenhouse Drop Door Extension Kit","description":"\u003ch2\u003e\u003cstrong\u003eRiga Door Extension Kit – Raise Your Riga Greenhouse for Enhanced Versatility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eRiga Greenhouse Drop Door Extension Kit\u003c\/strong\u003e is designed to elevate your Riga greenhouse by 20 inches when mounted on a stem wall, providing additional height and improved functionality. This kit is compatible with all Riga greenhouse models and includes extensions for both doors, ensuring a seamless fit.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Height\u003c\/strong\u003e: Raises the greenhouse by 20 inches to accommodate taller plants or additional storage space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Design\u003c\/strong\u003e: Specifically made for all Riga XL (5-9), 3, 4, 5, 2S, 3S, 4S greenhouse models, ensuring a perfect fit and easy installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor Dimensions\u003c\/strong\u003e: Requires a stem wall door opening of 40 inches wide for proper installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Kit\u003c\/strong\u003e: Includes extensions for two doors for a balanced and uniform appearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient Shipping\u003c\/strong\u003e: Ships in two packages (poly components shipped separately) for safe and efficient delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your Riga greenhouse with this door extension kit to create a more versatile and functional growing space. Perfect for gardeners who need extra height or want to customize their greenhouse setup.\u003c\/p\u003e","brand":"Hoklartherm","offers":[{"title":"2S \/ 2025 and Later","offer_id":45676061294741,"sku":"RIGA-DOOR-EXT-S","price":379.0,"currency_code":"USD","in_stock":true},{"title":"2S \/ 2024 and Earlier","offer_id":46315118067861,"sku":"RIGA-DOOR-EXT-S","price":379.0,"currency_code":"USD","in_stock":true},{"title":"3S \/ 2025 and Later","offer_id":45676061327509,"sku":"RIGA-DOOR-EXT-S","price":379.0,"currency_code":"USD","in_stock":true},{"title":"3S \/ 2024 and Earlier","offer_id":46315118100629,"sku":"RIGA-DOOR-EXT-S","price":379.0,"currency_code":"USD","in_stock":true},{"title":"4S \/ 2025 and Later","offer_id":45676061360277,"sku":"RIGA-DOOR-EXT-S","price":379.0,"currency_code":"USD","in_stock":true},{"title":"4S \/ 2024 and Earlier","offer_id":46315118133397,"sku":"RIGA-DOOR-EXT-S","price":379.0,"currency_code":"USD","in_stock":true},{"title":"3 \/ 2025 and Later","offer_id":45676061196437,"sku":"RIGA-DOOR-EXT","price":439.0,"currency_code":"USD","in_stock":true},{"title":"3 \/ 2024 and Earlier","offer_id":46315118166165,"sku":"RIGA-DOOR-EXT-PRE-2024","price":439.0,"currency_code":"USD","in_stock":true},{"title":"4 \/ 2025 and Later","offer_id":45676061229205,"sku":"RIGA-DOOR-EXT","price":439.0,"currency_code":"USD","in_stock":true},{"title":"4 \/ 2024 and Earlier","offer_id":46315118198933,"sku":"RIGA-DOOR-EXT-PRE-2024","price":439.0,"currency_code":"USD","in_stock":true},{"title":"5 \/ 2025 and Later","offer_id":45676061261973,"sku":"RIGA-DOOR-EXT","price":439.0,"currency_code":"USD","in_stock":true},{"title":"5 \/ 2024 and Earlier","offer_id":46315118231701,"sku":"RIGA-DOOR-EXT-PRE-2024","price":439.0,"currency_code":"USD","in_stock":true},{"title":"XL5 \/ 2025 and Later","offer_id":45676061163669,"sku":"RIGA-XL-DOOR-EXT","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL5 \/ 2024 and Earlier","offer_id":46315118264469,"sku":"RIGA-XL-DOOR-EXT-PRE-2024","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL6 \/ 2025 and Later","offer_id":46315167023253,"sku":"RIGA-XL-DOOR-EXT","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL6 \/ 2024 and Earlier","offer_id":46315167056021,"sku":"RIGA-XL-DOOR-EXT-PRE-2024","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL7 \/ 2025 and Later","offer_id":46315167088789,"sku":"RIGA-XL-DOOR-EXT","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL7 \/ 2024 and Earlier","offer_id":46315167121557,"sku":"RIGA-XL-DOOR-EXT-PRE-2024","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL8 \/ 2025 and Later","offer_id":46315167154325,"sku":"RIGA-XL-DOOR-EXT","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL8 \/ 2024 and Earlier","offer_id":46315167187093,"sku":"RIGA-XL-DOOR-EXT-PRE-2024","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL9 \/ 2025 and Later","offer_id":47139692904597,"sku":"RIGA-XL-DOOR-EXT","price":1299.0,"currency_code":"USD","in_stock":true},{"title":"XL9 \/ 2024 and Earlier","offer_id":47139692937365,"sku":"RIGA-XL-DOOR-EXT-PRE-2024","price":1299.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Riga-Door-Extention-Kit-MyGreenhouseStore-com.jpg?v=1751049839"},{"product_id":"janssens-drop-door-kit","title":"Exaco | Drop Door Kit","description":"\u003cp\u003eDrop-Door Kit -  for Hinged Door or Sliding Door.  This allows a standard Royal Victorian greenhouse such as a VI-23, VI-34, VI-46 to be placed on top of a knee wall - usually 20\" - 36\" high (24\" might be best).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis kit \u003cspan style=\"color: rgb(255, 42, 0);\"\u003edoes not include\u003c\/span\u003e the small new glass panels needed above the doors - they should be ordered locally to size.\u003c\/strong\u003e This is because of potential variations in the wall or threshold details - we don't want to send glass that will not fit. \u003c\/p\u003e\n\u003cp\u003eWe can supply extra polycarbonate at a nominal cost for you to cut to size, if you prefer.\u003c\/p\u003e\n\u003cp\u003eNOTE: we strongly recommend upgrading to Hinged Doors when the greenhouse stands on a wall.\u003c\/p\u003e\n\u003cp\u003eWe send enough framing material for 30\" walls, it is cut to fit in place on site - if more is needed let us know.\u003c\/p\u003e","brand":"Janssens","offers":[{"title":"Sliding Door (single or double) \/ Black","offer_id":45894704038037,"sku":"VIC-DROP-DOOR-SLIDING-BLACK","price":190.0,"currency_code":"USD","in_stock":true},{"title":"Sliding Door (single or double) \/ Green","offer_id":45894704070805,"sku":"VIC-DROP-DOOR-SLIDING-GREEN","price":190.0,"currency_code":"USD","in_stock":true},{"title":"Hinged Door (single or double) \/ Black","offer_id":45894704103573,"sku":"VIC-DROP-DOOR-HINGED-BLACK","price":140.0,"currency_code":"USD","in_stock":true},{"title":"Hinged Door (single or double) \/ Green","offer_id":45894704136341,"sku":"VIC-DROP-DOOR-HINGED-GREEN","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/janssens-drop-door-double-hinged-doors.jpg?v=1751050036"},{"product_id":"kgt-drop-door-kit-for-nelke-pro-4-greenhouse","title":"KGT | Drop Door Kit for Nelke PRO 4 Greenhouse on Stem Wall","description":"\u003cp\u003eYou can use a \u003cstrong\u003eKGT Drop Door Kit\u003c\/strong\u003e to place your Nelke PRO 4 Greenhouse on a 20\" knee\/stem wall. The kit has aluminum pieces to replace the vertical extrusions on either side of the door with taller extrusions that run from the ground all the way up to the eaves in one continuous piece for added strength.  The kit includes a piece of polycarbonate to fill the header space above the doorway.\u003c\/p\u003e","brand":"KGT","offers":[{"title":"Default Title","offer_id":45898997137557,"sku":"NELKE-DROP-DOOR","price":1099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/janssens-drop-door-double-hinged-doors.jpg?v=1751050036"},{"product_id":"kgt-foundation-frame-for-nelke-pro-4-greenhouse","title":"KGT | Foundation Frame for Nelke PRO 4 Greenhouse","description":"\u003cp\u003eThe KGT Nelke PRO 4 greenhouse aluminum foundation frame is a useful accessory. If you do not want to fasten your greenhouse with screws and plugs or if there is no suitable surface for this, the foundation frame provides a stable connection between the greenhouse and the ground. The foundation frame is hooked under the floor profile and is then simply buried in the ground. This creates a secure, all-round connection to the substrate. Save yourself the time and work of creating a concrete foundation and use the optional aluminum foundation frame.\u003c\/p\u003e\n\u003cp\u003eMade of rot-proof aluminum, the foundation frame can be removed without leaving any residue even after years.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"KGT","offers":[{"title":"Default Title","offer_id":45899854807189,"sku":"NELKE-PRO-4-BASE","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Hoklartherm_foundation_frame.jpg?v=1751049826"},{"product_id":"exaco-janssens-drop-door-kit-top-window-lexan-panel","title":"Exaco | Janssens Drop Door Kit Top Window Lexan Panel","description":"\n\u003cp\u003e\u003cspan\u003eThe \u003cstrong\u003eJanssens Drop Door Kit Top Window Lexan Panel\u003c\/strong\u003e is an optional \u003c\/span\u003eclear Lexan panel you can cut to fit above your drop door when using the drop door kit.\u003c\/p\u003e\n\u003ch6\u003eWARRANTY\u003c\/h6\u003e\n\u003cp\u003e15 Year Limited Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/2022-Victorian-greenhouse-warranty-_originated-Jan-2017.pdf\" title=\"Jannsens Retro Victorian Greenhouse Warranty MyGreenhouseStore\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Jannsens_Retro_Victorian_Greenhouse_Warranty_MyGreenhouseStore.jpg\" style=\"border: 1px solid #bdbdbd;\" width=\"250\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Janssens","offers":[{"title":"Default Title","offer_id":45903302328469,"sku":"VI-LOUVRE-COVER","price":144.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Janssens-Drop-Door-Kit-Top-Window-Lexan-Panel.png?v=1780061306"},{"product_id":"janssens-pro210-foundation-anchor-post","title":"Janssens | PRO210 Foundation Anchor Post","description":"\u003ch2\u003eAnchoring Your Janssens Greenhouse\u003c\/h2\u003e\n\u003cp\u003eAll Greenhouses must be securely anchored. All Victorian greenhouses include aluminum PRO210 corner L brackets (also called angle brackets or anchor posts) to be attached to the foundation base frame that extend an additional 12” below ground level. The VI 36 and 46 include an additional pair of PRO210's to use at the midpoint of the long wall. If you are in a high wind area or are trying to meet the structural specifications for a permit - you may wish to purchase additional PRO210 corner anchor posts for use at the vertical members.\u003c\/p\u003e\n\u003cp\u003eSome users have chosen a variety of alternative anchoring methods based on their climate, location, soil composition, and site considerations. These include full concrete slabs, concrete footers, pier and beam constructions, and even timbers. If you are considering the use of wood in your construction, be aware that your greenhouse will likely outlast your wood. If you use pressure-treated wood, it is recommended to use a barrier material between the wood and the aluminum frame. When planning your anchoring method, you should keep in mind frost line\/ground heaving, wind load, greenhouse location, ground composition, weather, climate, and local building code. If you are unsure, you should consult with a local and experienced builder. Janssens Warranty coverage does not extend to damage resulting from improper anchoring of the greenhouse outside of the manufacturer’s recommendations (see the official Janssens Assembly Manual for your greenhouse).\u003c\/p\u003e\n\u003cp\u003eFor the anchoring to your concrete slab or perimeter footing - there are 4 basic recommendations, in addition to the 4 or 6 corner aluminum angle PRO210 anchor posts that come with your greenhouse.\u003c\/p\u003e\n\u003ch3\u003eAnchoring the Corners\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003ePreferred way: Embedding the corner anchors into your concrete.\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eRefer to the foundation and anchoring pages in your manual.  You can see the recommended embedded usage of the PRO210's to anchor the corners.  The most secure way to anchor the greenhouse is to embed the anchor posts into the concrete. The manufacturer recommends an 8” wide concrete strip foundation that extends down to the frost line in your area. Please consult your local building codes for this information. It is recommended to leave a 4” diameter hole at the corner for the anchors to be embedded in concrete after the greenhouse frame is assembled and it is confirmed to be level and square. You can also place a PVC pipe or Sonotube embedded into your concrete. The PVC or Sonotube should be at least 4” wide in diameter.\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Janssens_corner_anchoring_600x600.png?v=1754493647\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/3W62iOgLVG4?si=V2wIibtMwJTZwdIi\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cu\u003eAlternate way: Cutting the corners anchor posts and using concrete screws.\u003c\/u\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eIf needed and the voids for the corner PRO210's were not included in the foundation pour, the PRO210's can be used to connect the two PRO6120's in the corner, then cut flush to the slab, and the remaining leftover parts of the PRO210 can be cut into three pieces and used as angle brackets to attach the corners to the foundation.  This assumes there is an adequate 'inside lip' on the foundation from the inside of the greenhouse frame.\u003c\/p\u003e\n\u003cp\u003eSteps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYou will have (4) 15 3\/4” long PRO210 L brackets. VI 36 \u0026amp; 46 will have (6) long PRO210 L Brackets\u003c\/li\u003e\n\u003cli\u003eCut off 4\" of the PRO210 to connect the foundation frame pieces together.\u003c\/li\u003e\n\u003cli\u003eCut the remaining 11 3\/4\" into thirds and flip horizontally to mount the top half into the foundation frame and the bottom half into the concrete or other foundation.\u003c\/li\u003e\n\u003cli\u003eUse self-tapping screws or pre-drill and use normal screws to mount the top part into the foundation frame of the greenhouse.\u003c\/li\u003e\n\u003cli\u003eUse concrete anchor screws such as \u003cmeta charset=\"utf-8\"\u003e \u003ca href=\"https:\/\/www.homedepot.com\/p\/Tapcon-1-4-in-x-1-3-4-in-410-Stainless-Steel-Hex-Head-Concrete-Anchors-8-Pack-26120\/202097033\" target=\"_blank\"\u003eTapcon Concrete Anchor Screws\u003c\/a\u003e to attach the bottom part to your concrete. We HIGHLY recommend pre-drilling and using a hammer drill to drill the anchors in.\u003ca href=\"https:\/\/www.homedepot.com\/p\/Tapcon-1-4-in-x-1-3-4-in-410-Stainless-Steel-Hex-Head-Concrete-Anchors-8-Pack-26120\/202097033\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Alternative_Janssens_corner_anchoring_600x600.png?v=1754493646\" alt=\"\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eAnchoring the Walls:\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eAdditional anchoring options along all walls\u003c\/b\u003e, as needed for high-wind areas, securing permitting, etc.:\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cb\u003eEmbedded option 1)\u003c\/b\u003e\u003c\/u\u003e Use additional PRO210's \u003cb\u003eembedded\u003c\/b\u003e in the concrete perimeter (leave voids for them and pour concrete after the base frame PRO6120 is in final position and greenhouse frame is square and level). These are nice black (or green) angle brackets, and are embedded 12\" into the concrete after being attached to the base frame - put one at each glazing bar\/stud \u003cmeta charset=\"utf-8\"\u003e(\u003cmeta charset=\"utf-8\"\u003ePRO1456) (slightly offset if needed to avoid interfering with the PRO1456 glazing bar\/stud bolt - see assembly closeups in the manual), all around the perimeter.  Count the glazing bars\/studs for your greenhouse model and order the correct amount with your greenhouse order.  For example, you'll need 16 for the M34 Modern.  The 90 degree angle gives strength, but will protrude into the greenhouse space along the base frame. Contact us for the specific spacing plan for your greenhouse. For example for the M34 Modern: Exterior greenhouse corner to center of 1\u003csup\u003est \u003c\/sup\u003ePRO1456 glazing bar\/stud is ~ 32”. Center of PRO1456 glazing bar\/stud to center of PRO1456 glazing bar\/stud is ~ 29”\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cb\u003eEmbedded option 2)\u003c\/b\u003e\u003c\/u\u003e Purchase your own galvanized steel or aluminum foundation anchor straps, cut into roughly 16\" lengths, and bolt them into the base frame at each glazing bar\/stud as above using appropriate spacing, instead of the PRO210 angles. Then \u003cb\u003eembed\u003c\/b\u003e 12\" or so of each strap into your concrete \u003cmeta charset=\"utf-8\"\u003e(leave voids for them and pour concrete after the base frame PRO6120 (\u003cspan\u003e1.84mm thick, which is 13 gauge\u003c\/span\u003e) is in position and greenhouse position, level, etc. is finalized). You can paint these to match your frame color and they will be nearly invisible in the interior of the greenhouse.\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cb\u003eNon-embedded option 3)\u003c\/b\u003e\u003c\/u\u003e Get additional PRO210's and cut them in thirds.  Use each piece as an angle bracket to bolt the base frame to the concrete at each PRO1456 glazing bar\/stud, similar to the above corner method. This is not as strong as embedding PRO210's or anchor straps into the concrete, but can be done 'after the fact' if no voids were left in the foundation pour.\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cb\u003eNon-embedded option 4)\u003c\/b\u003e\u003c\/u\u003e Use long anchors into\/through foundation frame. Drill access holes vertically into the top of and down through the bottom of the PRO6120 base, where each glazing bar\/stud is going to attach, using the PRO1456 attachment holes as your guide. Be sure to line these up with the holes in the vertical flange so they will be covered by a vertical glazing bar\/stud (PRO1456) to avoid water entry! Use appropriate long anchor fasteners for your foundation (not included).\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Janssens_Alternative_Wall_Anchoring_600x600.png?v=1754493647\" alt=\"\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch6\u003eFEATURES\u003c\/h6\u003e\n\u003cul\u003e\n\u003cli\u003eColor: Black or Green\u003c\/li\u003e\n\u003cli\u003eMaterial: Aluminum\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2.24mm thick which is approximately 12 gauge\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eMade in Belgium by Janssens\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e15 Year Limited Warranty\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6\u003eWARRANTY\u003c\/h6\u003e\n\u003cp\u003e15 Year Limited Warranty\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Jannsens Retro Victorian Greenhouse Warranty MyGreenhouseStore\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/2022-Victorian-greenhouse-warranty-_originated-Jan-2017.pdf\" target=\"_blank\"\u003e\u003cimg width=\"250\" style=\"border: 1px solid #bdbdbd;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Jannsens_Retro_Victorian_Greenhouse_Warranty_MyGreenhouseStore.jpg\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Janssens","offers":[{"title":"Black","offer_id":46286344323221,"sku":"PRO210BL","price":29.0,"currency_code":"USD","in_stock":true},{"title":"Green","offer_id":46286344355989,"sku":"PRO210G","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/JanssensCornerAnchorPost.png?v=1754495319"},{"product_id":"alton-greenhouse-anchoring-bracket","title":"Alton | Greenhouse Anchoring Bracket","description":"\u003cp\u003eThese 9 3\/4\" long angle iron anchors are designed to attach to the base of the Alton Greenhouse and then be embedded into concrete below ground level to securely anchor the greenhouse.  Your Alton greenhouse will include several, but this is the option to purchase more if you are in a windy area.\u003c\/p\u003e","brand":"Alton","offers":[{"title":"Default Title","offer_id":47351525408917,"sku":"ALTEVO232M","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0097\/9959\/8140\/files\/Alton-anchoring-bracket-2.png?v=1779058570"}],"url":"https:\/\/mygreenhousestore.com\/collections\/greenhouse-foundation-anchoring\/kgt.oembed","provider":"MyGreenhouseStore.com","version":"1.0","type":"link"}