{"product_id":"hotbed-and-propagating-frame-plan","title":"Hotbed \u0026 Propagating Frame","description":"\u003cp\u003eGet a head start on the garden with this heated propagating frame — a hotbed — from a 1964 USDA \/ University of Maryland Extension plan. It's a low 6'-0\" square frame on a 1×8 base: three ½\" thin-wall conduit arches bent to 120° at the ridge and eaves, 2×2 end frames under a 2×2 ridge, and clear plastic on the ends. The two side covers are welded-wire mesh wrapped in plastic and tied loosely to the ridge with cord, so you can lift them on warm days to vent and harden off the plants and drop them at night. A 360-watt soil-heating cable in the bed warms the root zone, so you can start seedlings weeks before the frost is out of the ground.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 6'-0\" × 6'-0\", ~3'-4\" to the ridge (183 × 183 × 102 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSkill:\u003c\/strong\u003e Beginner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild time:\u003c\/strong\u003e 1 weekend\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e approx. US$120–300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the plan:\u003c\/strong\u003e 18-page PDF, US Letter, 21 illustrated steps, imperial, with metric in the lists and steps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInside the 18-page plan\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe original public-domain sheet, restored and reproduced in full\u003c\/li\u003e\n\u003cli\u003eAn exploded drawing that shows how every part goes together\u003c\/li\u003e\n\u003cli\u003eDimensioned views of the finished build, in feet and inches\u003c\/li\u003e\n\u003cli\u003eMaterials list and hardware schedule, with today's actual lumber sizes and metric equivalents\u003c\/li\u003e\n\u003cli\u003eCut list, so you can cut everything before you start assembling\u003c\/li\u003e\n\u003cli\u003eClear illustrated step-by-step assembly drawings: one job per step, every part drawn, fastener positions marked\u003c\/li\u003e\n\u003cli\u003eA modern-build track: screws and today's materials, same dimensions\u003c\/li\u003e\n\u003cli\u003eThe Remix: build it as a Propagation Station\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eThe PDF plan is a digital download; nothing ships. The Printed Workshop Edition (PDF included) and the wall prints are printed to order and shipped. Adapted from USDA Cooperative Extension Service plan 5971, a public-domain original. Restored, redrawn and edited by Square \u0026amp; Furrow, produced with AI-assisted tools and checked against the original drawing.\u003c\/em\u003e\u003c\/p\u003e","brand":"Square \u0026 Furrow","offers":[{"title":"Default Title","offer_id":55170264400213,"sku":"SF-5971","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1085\/1811\/3621\/files\/hotbed-and-propagating-frame-plan-01-cover-b05596.jpg?v=1791201489","url":"https:\/\/squarefurrow.com\/products\/hotbed-and-propagating-frame-plan","provider":"Square \u0026 Furrow","version":"1.0","type":"link"}