{"product_id":"calf-warming-box-plan","title":"Calf Warming Box","description":"\u003cp\u003eA portable heated box that brings a chilled newborn calf back from the edge, from a 1988 USDA \/ Minnesota Extension plan. A 5\/8\" exterior plywood box on 2×4 skids, 4'-0\" wide × 2'-6\" deep and 4'-0\" tall at the door falling to 3'-8\" at the back, holds a 1500-watt thermostatically-controlled heater and a 250 CFM fan behind expanded metal, with a plastic-coated perforated floor so warm air circulates under the calf. A 3'-0\" square strap-hinged calf door with a 12\" plexiglass window lets you watch drying progress, and an adjustable 1×6 cover meters gravity ventilation. Suitable indoors or outdoors (the sheet calls for preservative pressure-treated lumber and waterproofing outside).\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 48\" W × 30\" D × 48\" H at the front, 44\" at the back (122 × 76 × 122\/112 cm) · 49-1\/2\" (126 cm) over the skids\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 (needs an electrician)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e approx. US$550–1,200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the plan:\u003c\/strong\u003e 21-page PDF, US Letter, 28 illustrated steps, imperial, with metric in the lists and steps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInside the 21-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 an Insulated Dog House\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 6397, 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":55170264826197,"sku":"SF-6397","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1085\/1811\/3621\/files\/calf-warming-box-plan-01-cover-ec2264.jpg?v=1791201489","url":"https:\/\/squarefurrow.com\/products\/calf-warming-box-plan","provider":"Square \u0026 Furrow","version":"1.0","type":"link"}