{"title":"Heavy Duty Shipping Boxes (Double Wall, ECT-44 to ECT-51)","description":"\u003cp\u003eHeavy duty shipping boxes for freight-class weight: every box here is double wall construction or rated ECT-44, ECT-48, or ECT-51 — the grades built for stacking strength and 65–120 lb contents that standard ECT-32 singlewall can't safely carry. Kraft corrugated, sold in bundle quantities with case pricing on the product page, shipped from 5 US regional warehouses.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e ECT-44 double wall for dense products up to ~65 lb per box; ECT-48 for ~80 lb or sharp-cornered industrial parts; ECT-51 for the heaviest palletized freight. If you're replacing a 275# burst-test spec, ECT-44+ double wall is the equivalent class. Not sure which grade? See the \u003ca href=\"\/pages\/shipping-box-size-chart\"\u003eshipping box size chart\u003c\/a\u003e or \u003ca href=\"\/pages\/guides\"\u003ebuying guides\u003c\/a\u003e, or \u003ca href=\"\/pages\/contact\"\u003eask us for a spec match\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eECT grades at a glance\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eGrade\u003c\/th\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003cth\u003eTypical contents limit\u003c\/th\u003e\n\u003cth\u003eReplaces (burst-test class)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eECT-44\u003c\/td\u003e\n\u003ctd\u003eHeavy single wall \/ light double wall\u003c\/td\u003e\n\u003ctd\u003e~65 lb\u003c\/td\u003e\n\u003ctd\u003e275# single wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECT-48\u003c\/td\u003e\n\u003ctd\u003eDouble wall\u003c\/td\u003e\n\u003ctd\u003e~80–100 lb\u003c\/td\u003e\n\u003ctd\u003e275# double wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eECT-51\u003c\/td\u003e\n\u003ctd\u003eDouble wall, heavy\u003c\/td\u003e\n\u003ctd\u003e~120 lb\u003c\/td\u003e\n\u003ctd\u003e350# class\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eTypical industry guidance — the certificate stamp printed on each box governs. Every product page lists the exact grade.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does ECT mean on a box?\u003c\/strong\u003e\u003cbr\u003eECT is the Edge Crush Test rating — how much stacking force a corrugated box wall withstands, in pounds per inch of width. Higher ECT means more stacking strength: ECT-32 is standard shipping grade, while ECT-44 through ECT-51 are heavy-duty grades for dense or palletized loads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between single wall and double wall boxes?\u003c\/strong\u003e\u003cbr\u003eDouble wall boxes have two fluted corrugated layers between three liners instead of one, roughly doubling stacking strength and puncture resistance. They hold their shape under heavy contents and pallet stacking where single wall would bulge or crush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat replaces a 275 lb test box?\u003c\/strong\u003e\u003cbr\u003eAs a rule of thumb, 275# burst-test single wall corresponds to about ECT-44, and 275# double wall to about ECT-48. When replacing a specified box, match the certificate stamp class rather than the nominal name.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo heavy duty boxes cost more to ship?\u003c\/strong\u003e\u003cbr\u003eThey weigh slightly more per box, but carriers price mostly on total shipment weight and dimensions. Packrift shows live carrier-quoted freight at checkout from 5 US regional warehouses, so you see the real landed cost before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eUpdated August 1, 2026. Grades and counts refresh automatically as catalog stock changes.\u003c\/small\u003e\u003c\/p\u003e\n\n\u003c!-- PHRASE-COVERAGE-20260801 --\u003e\n\u003cp\u003eLooking for sturdy shipping boxes that hold up under real freight? Every grade here is rated for exactly that — the ECT stamp tells you how sturdy, in numbers instead of adjectives.\u003c\/p\u003e","products":[{"product_id":"20x20x45-ect-48-wardrobe-packing-boxes-hanger-ready-shipping-case-of-3","title":"20x20x45 ECT-48 Wardrobe Packing Boxes - Hanger-Ready Shipping, Case of 3","description":"\u003cp\u003eShip or store clothing on hangers without removal, Packrift ' s wardrobe packing boxes eliminate folding, wrinkles, and damage. Each case of 3 includes 20x20x45 \"  corrugated shipping cartons plus hanger bars. ECT-48 double wall construction handles repeated use and rough handling.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53444756799856,"sku":"WARDCOMBO","price":69.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/WARDCOMBO.jpg?v=1774849973"},{"product_id":"14x4x68-ect-44-kraft-side-loading-boxes-10-pack-bundle","title":"14x4x68 ECT-44 Kraft Side Loading Boxes - 10 Pack Bundle","description":"\u003cp\u003eThe 14x4x68\" ECT-44 kraft side-loading box is a long flat shipping carton for narrow panels, framed prints, signs, trim, and other low-profile items. The side-loading opening lets flat products slide in across the long face instead of through a small end opening. Listed inside dimensions are 14\" x 4\" x 68\", with 44 ECT kraft corrugated board. Sold in bundles of 10 for side-load mailing and flat e-commerce shipping.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445083726192,"sku":"HD14468FOL","price":139.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD14468FOL.jpg?v=1774850392"},{"product_id":"20x8x60-ect-44-kraft-side-loading-box-bundle-of-5","title":"20x8x60 ECT-44 Kraft Side Loading Box - Bundle of 5","description":"\u003cp\u003eThe 20x8x60\" ECT-44 kraft side-loading box is a long flat shipping carton for panels, framed prints, signs, shelves, trim, and other low-profile items. The side-loading opening helps pack wide, flat products without forcing them through a narrow end. Listed inside dimensions are 20\" x 8\" x 60\", with 44 ECT kraft corrugated board. Sold in bundles of 5 for side-load mailing and long e-commerce shipping.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445092082032,"sku":"HD20860FOL","price":69.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD20860FOL.jpg?v=1774850397"},{"product_id":"48x24x12-ect-48-double-wall-corrugated-boxes-heavy-duty-kraft-bundle-of-5","title":"48x24x12 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Kraft, Bundle of 5","description":"\u003cp\u003e48x24x12 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Kraft, Bundle of 5. 48x24x12 double wall corrugated shipping cartons built from ECT-48 kraft material deliver maximum stacking performance and impact protection. Heavy-duty construction handles demanding warehouse environments and long-haul freight. Bundle of 5 ships flat to maximize storage efficiency and reduce freight costs.\u003c\/p\u003e \u003cp\u003eIdeal for shipping apparel, shoes, books, household goods, and everyday ecommerce orders. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.\u003c\/p\u003e\n\u003c!-- PACKRIFT-UCP-SEMANTIC-BOX-USECASE-R01 bucket=medium --\u003e\n\u003cp\u003e\u003cstrong\u003eEcommerce shipping boxes:\u003c\/strong\u003e Good fit for shipping apparel, shoes, books, household goods, small appliances, warehouse picks, and everyday ecommerce orders. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445133861232,"sku":"HD482412DW","price":67.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD482412DW.jpg?v=1774850427"},{"product_id":"48x24x28-ect-48-double-wall-gaylord-boxes-heavy-duty-corrugated-bundle-of-5","title":"48x24x28 ECT-48 Double Wall Gaylord Boxes - Heavy-Duty Corrugated (Bundle of 5)","description":"\u003cp\u003eThe 48x24x28 ECT-48 Double Wall Gaylord Boxes - Corrugated is a corrugated gaylord box for bulk parts, warehouse storage, pallet loads, returns, and loose inventory. Listed specs include inside dimensions 48\" x 24\" x 28\"; corrugated material; ECT-48, double-wall; 28 box. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e \u003cp\u003eIdeal for shipping bulky items, moving supplies, large equipment, and bulk fulfillment. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445159125360,"sku":"GL482428DW","price":89.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/GL482428DW.jpg?v=1774850437"},{"product_id":"60x12x12-ect-48-double-wall-kraft-boxes-heavy-duty-shipping-bundle-of-5","title":"60x12x12 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping, Bundle of 5","description":"\u003cp\u003eThe 60x12x12 ECT-48 Double Wall Kraft Boxes is a long corrugated shipping box for rods, trim, tubes, banners, rolled goods, shelves, and replacement parts. Listed specs include inside dimensions 60\" x 12\" x 12\"; kraft material; ECT-48, double-wall; 12 box. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445175542128,"sku":"HD601212DW","price":89.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD601212DW.jpg?v=1774850448"},{"product_id":"20x8x50-ect-44-kraft-side-loading-boxes-bundle-of-5","title":"20x8x50 ECT-44 Kraft Side Loading Boxes - Bundle of 5","description":"\u003cp\u003eThe 20x8x50 ECT-44 Kraft Side Loading Boxes is a side-loading corrugated shipping box for flat or narrow items such as framed prints, signs, panels, trim, shelves, and low-profile parts. Listed specs include inside dimensions 20\" x 8\" x 50\"; kraft material; ECT-44; box 20850. The side-loading opening lets flat products slide in across the long face instead of through a small end.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445267489136,"sku":"HD20850FOL","price":52.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD20850FOL.jpg?v=1774850504"},{"product_id":"24x20x46-ect-48-wardrobe-boxes-hanging-garment-shipping-bundle-of-5","title":"24x20x46 ECT-48 Wardrobe Boxes - Hanging Garment Shipping, Bundle of 5","description":"\u003cp\u003eThe 24x20x46 ECT-48 Wardrobe Boxes - Hanging Garment Shipping is a corrugated shipping box for e-commerce orders, parts, samples, retail goods, returns, and warehouse shipments. Listed specs include inside dimensions 24\" x 20\" x 46\"; corrugated material; ECT-48; 46 box. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445275812208,"sku":"242046WARD","price":107.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/242046WARD.jpg?v=1774850510"},{"product_id":"18x7x52-ect-44-kraft-side-loading-boxes-bundle-of-5","title":"18x7x52 ECT-44 Kraft Side Loading Boxes - Bundle of 5","description":"\u003cp\u003eThe 18x7x52 ECT-44 Kraft Side Loading Boxes is a side-loading corrugated shipping box for flat or narrow items such as framed prints, signs, panels, trim, shelves, and low-profile parts. Listed specs include inside dimensions 18\" x 7\" x 52\"; kraft material; ECT-44; box 18752. The side-loading opening lets flat products slide in across the long face instead of through a small end.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445301076336,"sku":"HD18752FOL","price":76.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD18752FOL.jpg?v=1774850520"},{"product_id":"24x8x57-ect-48-double-wall-telescoping-outer-boxes-adjustable-bundle-of-5","title":"24x8x57\" ECT-48 Double Wall Telescoping Outer Boxes - Adjustable, Bundle of 5","description":"\u003cp\u003eECT-48 kraft telescoping outer cartons designed for tall and irregularly shaped items with maximum crush resistance. Adjustable two-piece construction expands to accommodate variable heights while maintaining full overlap (FOL) bottom strength. Sold as bundle of 5, pair with T24857INDW inner carton for complete telescoping box set.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445334270320,"sku":"T24857OUTDW","price":101.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/T24857OUTDW.jpg?v=1774850537"},{"product_id":"20x20x45-ect-48-double-wall-wardrobe-boxes-hanger-storage-bundle-of-5","title":"20x20x45 ECT-48 Double Wall Wardrobe Boxes - Hanger Storage, Bundle of 5","description":"\u003cp\u003eThe 20x20x45 ECT-48 Double Wall Wardrobe Boxes - Hanger Storage is a corrugated file storage box for folders, records, binders, manuals, archive paperwork, and office moves. Listed specs include inside dimensions 20\" x 20\" x 45\"; corrugated material; ECT-48, double-wall; 45 box. The file-box format keeps paperwork grouped for shelving, retrieval, transport, and office storage.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445359305072,"sku":"202045WARD","price":99.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/202045WARD.jpg?v=1774850548"},{"product_id":"48x16x16-ect-48-double-wall-kraft-boxes-heavy-duty-shipping-cartons-bundle-of-10","title":"48x16x16 ECT-48 Double Wall Kraft Boxes - Heavy-Duty Shipping Cartons, Bundle of 10","description":"\u003cp\u003eThe 48x16x16 ECT-48 Double Wall Kraft Boxes Cartons is a long corrugated shipping box for rods, trim, tubes, banners, rolled goods, shelves, and replacement parts. Listed specs include inside dimensions 48\" x 16\" x 16\"; kraft material; ECT-48, double-wall; bundle of 10. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445450793328,"sku":"HD481616DW","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD481616DW.jpg?v=1774850587"},{"product_id":"54x8x28-ect-44-kraft-side-loading-boxes-bundle-of-5","title":"54x8x28 ECT-44 Kraft Side Loading Boxes - Bundle of 5","description":"\u003cp\u003eThe 54x8x28 ECT-44 Kraft Side Loading Boxes is a side-loading corrugated shipping box for flat or narrow items such as framed prints, signs, panels, trim, shelves, and low-profile parts. Listed specs include inside dimensions 54\" x 8\" x 28\"; kraft material; ECT-44; box 54828. The side-loading opening lets flat products slide in across the long face instead of through a small end.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445525963120,"sku":"HD54828FOL","price":124.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD54828FOL.jpg?v=1774850630"},{"product_id":"12x12x48-ect-48-double-wall-kraft-boxes-heavy-duty-shipping-cartons-bundle-of-10","title":"12x12x48 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons, Bundle of 10","description":"\u003cp\u003eThe 12x12x48 ECT-48 Double Wall Kraft Boxes Cartons is a long corrugated shipping box for rods, trim, tubes, banners, rolled goods, shelves, and replacement parts. Listed specs include inside dimensions 12\" x 12\" x 48\"; kraft material; ECT-48, double-wall; bundle of 10. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445534744944,"sku":"HD121248DW","price":111.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD121248DW.jpg?v=1774850636"},{"product_id":"36x24x18-ect-48-double-wall-corrugated-boxes-heavy-duty-shipping-5-bundle","title":"36x24x18 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, 5-Bundle","description":"\u003cp\u003eThe 36x24x18 ECT-48 Double Wall Corrugated Boxes, 5-Bundle is a corrugated shipping box for e-commerce orders, parts, samples, retail goods, returns, and warehouse shipments. Listed specs include inside dimensions 36\" x 24\" x 18\"; corrugated material; ECT-48, double-wall; 18 box. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e \u003cp\u003eIdeal for shipping bulky items, moving supplies, large equipment, and bulk fulfillment. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.\u003c\/p\u003e\n\u003c!-- PACKRIFT-UCP-SEMANTIC-BOX-USECASE-R01 bucket=large --\u003e\n\u003cp\u003e\u003cstrong\u003eLarge shipping boxes:\u003c\/strong\u003e Good fit for shipping bulky household goods, moving supplies, large equipment, soft goods, and bulk fulfillment. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445584454000,"sku":"HD362418DW","price":102.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD362418DW.jpg?v=1774850658"},{"product_id":"30x30x16-ect-48-double-wall-corrugated-boxes-heavy-duty-shipping-bundle-of-5","title":"30x30x16 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 5","description":"\u003cp\u003eECT-48 heavy-duty double wall corrugated boxes designed for demanding warehouse and fulfillment operations. 30 \"  x 30 \"  x 16 \"  dimensions deliver maximum cubic capacity with stacking performance and crush resistance. Ships flat in bundles of 5 to minimize storage footprint and freight costs.\u003c\/p\u003e \u003cp\u003eIdeal for shipping bulky items, moving supplies, large equipment, and bulk fulfillment. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.\u003c\/p\u003e\n\u003c!-- PACKRIFT-UCP-SEMANTIC-BOX-USECASE-R01 bucket=large --\u003e\n\u003cp\u003e\u003cstrong\u003eLarge shipping boxes:\u003c\/strong\u003e Good fit for shipping bulky household goods, moving supplies, large equipment, soft goods, and bulk fulfillment. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445634556272,"sku":"HD303016DW","price":83.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD303016DW.jpg?v=1774850692"},{"product_id":"36x24x8-ect-48-double-wall-kraft-boxes-heavy-duty-shipping-cartons-bundle-of-10","title":"36x24x8 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons, Bundle of 10","description":"\u003cp\u003eThe 36x24x8 ECT-48 Double Wall Kraft Boxes Cartons is a corrugated shipping box for e-commerce orders, parts, samples, retail goods, returns, and warehouse shipments. Listed specs include inside dimensions 36\" x 24\" x 8\"; kraft material; ECT-48, double-wall; bundle of 10. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445676269936,"sku":"HD36248DW","price":153.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD36248DW.jpg?v=1774850714"},{"product_id":"36x24x12-ect-48-double-wall-boxes-heavy-duty-kraft-cartons-bundle-of-5","title":"36x24x12 ECT-48 Double Wall Boxes - Heavy-Duty Kraft Cartons, Bundle of 5","description":"\u003cp\u003eThe 36x24x12 ECT-48 Double Wall Boxes - Kraft Cartons is a corrugated shipping box for e-commerce orders, parts, samples, retail goods, returns, and warehouse shipments. Listed specs include inside dimensions 36\" x 24\" x 12\"; kraft material; ECT-48, double-wall; 12 box. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445684527472,"sku":"HD362412DW","price":57.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD362412DW.jpg?v=1774850720"},{"product_id":"40x20x20-ect-48-double-wall-corrugated-boxes-heavy-duty-shipping-bundle-of-5","title":"40x20x20 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 5","description":"\u003cp\u003eThe 40x20x20 ECT-48 Double Wall Corrugated Boxes is a corrugated shipping box for e-commerce orders, parts, samples, retail goods, returns, and warehouse shipments. Listed specs include inside dimensions 40\" x 20\" x 20\"; corrugated material; ECT-48, double-wall; 20 box. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e \u003cp\u003eIdeal for shipping bulky items, moving supplies, large equipment, and bulk fulfillment. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.\u003c\/p\u003e\n\u003c!-- PACKRIFT-UCP-SEMANTIC-BOX-USECASE-R01 bucket=large --\u003e\n\u003cp\u003e\u003cstrong\u003eLarge shipping boxes:\u003c\/strong\u003e Good fit for shipping bulky household goods, moving supplies, large equipment, soft goods, and bulk fulfillment. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445701304688,"sku":"HD402020DW","price":83.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD402020DW.jpg?v=1774850731"},{"product_id":"30x30x12-ect-48-double-wall-kraft-boxes-heavy-duty-shipping-bundle-of-5","title":"30x30x12 ECT-48 Double Wall Kraft Boxes - Heavy-Duty Shipping, Bundle of 5","description":"\u003cp\u003eHeavy-duty ECT-48 kraft double wall cartons engineered for maximum protection and stacking performance. 30 \"  x 30 \"  x 12 \"  dimensions optimize pallet loads and freight costs. Ships flat in bundles of 5, save storage space and reduce inbound shipping.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53445768380784,"sku":"HD303012DW","price":78.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/HD303012DW.jpg?v=1774850764"},{"product_id":"36x5x48-ect-44-kraft-side-loading-boxes-bundle-of-5","title":"36x5x48 ECT-44 Kraft Side Loading Boxes - Bundle of 5","description":"\u003cp\u003eThe 36x5x48 ECT-44 Kraft Side Loading Boxes is a side-loading corrugated shipping box for flat or narrow items such as framed prints, signs, panels, trim, shelves, and low-profile parts. Listed specs include inside dimensions 36\" x 5\" x 48\"; kraft material; ECT-44; box 36548. 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Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e \u003cp\u003eIdeal for shipping bulky items, moving supplies, large equipment, and bulk fulfillment. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.\u003c\/p\u003e\n\u003c!-- PACKRIFT-UCP-SEMANTIC-BOX-USECASE-R01 bucket=large --\u003e\n\u003cp\u003e\u003cstrong\u003eLarge shipping boxes:\u003c\/strong\u003e Good fit for shipping bulky household goods, moving supplies, large equipment, soft goods, and bulk fulfillment. 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Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.\u003c\/p\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53446074532208,"sku":"T48638INHD","price":189.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/T48638INHD.jpg?v=1774851222"},{"product_id":"26x26x12-ect-48-double-wall-kraft-boxes-heavy-duty-shipping-bundle-of-10","title":"26x26x12 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping, Bundle of 10","description":"\u003cp\u003eThe 26x26x12 ECT-48 Double Wall Kraft Boxes is a corrugated shipping box for e-commerce orders, parts, samples, retail goods, returns, and warehouse shipments. Listed specs include inside dimensions 26\" x 26\" x 12\"; kraft material; ECT-48, double-wall; bundle of 10. 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