{"product_id":"extra-heavy-duty-boxes-size-1-10","title":"Extra Heavy Duty Boxes - Size 1-10 - (Per Unit)","description":"\u003ch3\u003e\u003cstrong\u003eExtra Heavy Duty Boxes – Strong, Secure \u0026amp; Reliable\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOur \u003cstrong\u003eextra heavy duty boxes\u003c\/strong\u003e are engineered for maximum strength and protection when shipping bulky, fragile or high‑value items. Made from reinforced corrugated cardboard with \u003cstrong\u003eup to 185% recycled content\u003c\/strong\u003e, these boxes deliver exceptional crush resistance and stability during transit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAvailable in \u003cstrong\u003esizes 1–10\u003c\/strong\u003e, each box features a rigid structure ideal for industrial packing, e‑commerce fulfilment, removals, storage and export shipments. Their tall, wide and deep profiles accommodate large or awkward items while maintaining reliable stacking strength.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese \u003cstrong\u003eextra heavy duty boxes\u003c\/strong\u003e are supplied flat‑packed for efficient storage and fast assembly. With strong walls, secure edges and consistent performance, they’re the perfect choice for businesses needing dependable packaging that withstands pressure, stacking and long‑distance delivery.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul role=\"list\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan role=\"button\" data-url=\"ca:\/\/s?q=Explain_reinforced_corrugated_board\" tabindex=\"0\"\u003eReinforced corrugated board\u003c\/span\u003e\u003c\/strong\u003e for maximum strength\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan role=\"button\" data-url=\"ca:\/\/s?q=What_is_185_percent_recycled_content\" tabindex=\"0\"\u003e185% recycled content\u003c\/span\u003e\u003c\/strong\u003e for eco‑friendly packaging\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan role=\"button\" data-url=\"ca:\/\/s?q=Crush_resistant_box_design\" tabindex=\"0\"\u003eCrush‑resistant structure\u003c\/span\u003e\u003c\/strong\u003e ideal for heavy or fragile items\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan role=\"button\" data-url=\"ca:\/\/s?q=Benefits_of_flat_packed_boxes\" tabindex=\"0\"\u003eFlat‑packed\u003c\/span\u003e\u003c\/strong\u003e for efficient storage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan role=\"button\" data-url=\"ca:\/\/s?q=Extra_heavy_duty_box_sizes\" tabindex=\"0\"\u003eAvailable in sizes 1–10\u003c\/span\u003e\u003c\/strong\u003e for a wide range of uses\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan role=\"button\" data-url=\"ca:\/\/s?q=Uses_for_heavy_duty_boxes\" tabindex=\"0\"\u003eSuitable for shipping, storage and removals\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e📦 Size Guide\u003c\/h3\u003e\n\u003cp\u003eAll measurements shown are internal dimensions. Choose your required size from the options above.\u003c\/p\u003e\n\u003ctable style=\"width: 100.087%; height: 327px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003cth style=\"width: 25.4071%; height: 39.1875px;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"width: 27.1323%; height: 39.1875px;\"\u003eInternal Measurements (mm)\u003c\/th\u003e\n\u003cth style=\"width: 46.7601%; height: 39.1875px;\"\u003eInternal Measurements (inches)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003eSize 1\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e180 × 180 × 180\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e7 × 7 × 7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003eSize 2\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e255 × 255 × 255\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e10 × 10 × 10 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003eSize 3\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e457 × 305 × 305\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e18 × 12 × 12 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003eSize 4\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cdiv class=\"dimension\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e508 × 508 × 508\u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e20 × 20 × 20 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eSize 5\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e600 × 600 × 625\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e23.5 × 23.5 × 24.5 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eSize 6\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e610 × 457 × 457\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e24 × 18 × 18 \u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eSize 7\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e720 × 525 × 430\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e28.25 × 20.75 × 17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eSize 8\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e800 × 500 × 500\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e31.5 × 19.75 × 19.75\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eSize 9\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e1,010 × 510 × 510\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e39.75 × 20 × 20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 25.4071%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eSize 10\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003e1,200 × 300 × 300 \u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%; height: 19.5938px;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e47.25 × 11.75 × 11.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 25.4071%;\"\u003eSize 11\u003c\/td\u003e\n\u003ctd style=\"width: 27.1323%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e1,200 × 600 × 600\u003c\/td\u003e\n\u003ctd style=\"width: 46.7601%;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e47.25 × 23.5 × 23.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e  \u003cbr\u003e\u003c\/p\u003e","brand":"Salisbury Pack \u0026 Post","offers":[{"title":"Size 1","offer_id":58299279475075,"sku":"CB-XHD-S1-N","price":3.5,"currency_code":"GBP","in_stock":false},{"title":"Size 2","offer_id":58299279507843,"sku":"CB-XHD-S2-N","price":5.5,"currency_code":"GBP","in_stock":false},{"title":"Size 3","offer_id":58299279540611,"sku":"CB-XHD-S3-N","price":12.0,"currency_code":"GBP","in_stock":false},{"title":"Size 4","offer_id":58314566795651,"sku":"CB-XHD-S4-N","price":29.0,"currency_code":"GBP","in_stock":false},{"title":"Size 5","offer_id":58314567516547,"sku":"CB-XHD-S5-N","price":35.0,"currency_code":"GBP","in_stock":false},{"title":"Size 6","offer_id":58314568171907,"sku":"CB-XHD-S6-N","price":28.0,"currency_code":"GBP","in_stock":false},{"title":"Size 7","offer_id":58314568794499,"sku":"CB-XHD-S7-N","price":32.0,"currency_code":"GBP","in_stock":false},{"title":"Size 8","offer_id":58314569253251,"sku":"CB-XHD-S8-N","price":33.0,"currency_code":"GBP","in_stock":false},{"title":"Size 9","offer_id":58314569843075,"sku":"CB-XHD-S9-N","price":48.0,"currency_code":"GBP","in_stock":false},{"title":"Size 10","offer_id":58314570400131,"sku":"CB-XHD-S10-N","price":30.0,"currency_code":"GBP","in_stock":false},{"title":"Size 11","offer_id":62034129387907,"sku":"CB-XHD-S11-N","price":78.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/4924\/5827\/files\/Extra_Heavy_Duty_Boxes.png?v=1783283857","url":"https:\/\/salisburypackandpost.co.uk\/products\/extra-heavy-duty-boxes-size-1-10","provider":"Salisbury Pack \u0026 Post","version":"1.0","type":"link"}