{"v":"2.0","page_type":"product","title":"Mainstays Half-Fold Steel Box Spring, Multiple Sizes: Structure made from durable, heavy-gauge steel for maximum strength Folds in half for convenient transport and storage No assembly required Made from steel; naturally resistant to bed bugs Coverlet adds support and increases breathability of the mattress Twin: open 74\" x 38\" x 7.5\"; folded 38\" x 4.17\" x 44.13\" Full: open 74\" x 53\" x 7.5\"; folded 53\" x 4.17\" x 44.13\" Queen: open 79\" x 59.5\" x 7.5\"; folded 59.5\" x 4.17\" x 46.61\" King (Comes with two): open 79\" x 76\" x 7.5\"; folded 37.75\" x 4.17\" x 46.61\" Weight Capacity: T/F 1,200 lbs; Q/K 2,400 lbs 5 year limited warranty Mattresses sold separately. Bed frames sold separately.","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Inno-Sports","href":"/python/html6/menu_brand_products/1000/193000/menu_brand_products_InnoSports_1_7af70c34ce.html"},{"label":"Half-Fold","href":null}],"content":{"product":{"mpn":"Half-Fold","manufacturer":"Inno-Sports","brand":"Inno-Sports","brand_url":"/python/html6/menu_brand_products/1000/193000/menu_brand_products_InnoSports_1_7af70c34ce.html","title":"Mainstays Half-Fold Steel Box Spring, Multiple Sizes: Structure made from durable, heavy-gauge steel for maximum strength Folds in half for convenient transport and storage No assembly required Made from steel; naturally resistant to bed bugs Coverlet adds support and increases breathability of the mattress Twin: open 74\" x 38\" x 7.5\"; folded 38\" x 4.17\" x 44.13\" Full: open 74\" x 53\" x 7.5\"; folded 53\" x 4.17\" x 44.13\" Queen: open 79\" x 59.5\" x 7.5\"; folded 59.5\" x 4.17\" x 46.61\" King (Comes with two): open 79\" x 76\" x 7.5\"; folded 37.75\" x 4.17\" x 46.61\" Weight Capacity: T/F 1,200 lbs; Q/K 2,400 lbs 5 year limited warranty Mattresses sold separately. Bed frames sold separately.","description":"","attributes":[{"name":"Brand name","values":[{"value":"Inno-Sports","url":"/python/html6/menu_attr_pair/1000/230000000/230084000/menu_attr_pair_Brandname_InnoSports_1_0eeb7cc33f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/230000000/230084000/menu_attr_pair_Brandname_InnoSports_1_0eeb7cc33f.html"},{"name":"Manufacturer name","values":[{"value":"Inno-Sports","url":"/python/html6/menu_attr_pair/1000/193000000/193124000/menu_attr_pair_Manufacturername_InnoSports_1_2bde778ea7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/193000000/193124000/menu_attr_pair_Manufacturername_InnoSports_1_2bde778ea7.html"},{"name":"Manufacturer","values":[{"value":"Inno-Sports","url":"/python/html6/menu_attr_pair/1000/211000000/211870000/menu_attr_pair_Manufacturer_InnoSports_1_66289e299f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/211000000/211870000/menu_attr_pair_Manufacturer_InnoSports_1_66289e299f.html"}],"images":[],"distributors":[{"name":"Walmart","sku":"49920615","url":"https://www.walmart.com/ip/Mainstays-7-5-Half-Fold-Steel-Box-Spring-Easy-No-Tools-Setup-Multiple-Sizes/49920615","pricing":[{"quantity":1,"price_usd":89.0}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://i5.walmartimages.com/asr/785f68b0-f374-4231-bd7c-c4154bba968f_1.fa031cd75f69190465eb7c69dc99de85.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF"}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-16","last_updated":"2026-09-16","data_sources":["Walmart"],"completeness":0.55,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}