{"product_id":"4x4x48-ect-32-kraft-telescoping-inner-box-adjustable-design-25-pack","title":"4x4x48 ECT-32 Kraft Telescoping Inner Box - Adjustable Design, 25-Pack","description":"\u003cp\u003ePackrift's 4x4x48 telescoping inner box is engineered for warehouse managers and fulfillment directors shipping tall, non-standard products efficiently. The adjustable two-piece design compresses for storage, then expands to fit your specific item height, eliminating wasted space and reducing freight costs. Manufactured from ECT-32 single-wall corrugated kraft with a full overlap (FOL) bottom, these cartons deliver proven stacking performance and durability for high-volume distribution centers. Each bundle contains 25 inner boxes; combine with our T4448OUTER outer carton to complete the telescoping set. Choose Packrift for reliable corrugated shipping solutions that maximize your logistics ROI.\u003c\/p\u003e\n\n\u003c!-- packrift-enriched --\u003e\n\u003cdiv class=\"packrift-enrichment\"\u003e\n\u003csection class=\"pf-best-for\"\u003e\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cp\u003eIdeal for warehouse managers and fulfillment directors shipping tall, irregularly shaped items up to 48 inches in height. The 4x4x48\" telescoping design maximizes vertical space efficiency while reducing dimensional weight charges, making it use for e-commerce, specialty retail, and industrial distribution centers handling slender products like tubing, poles, or rolled materials.\u003c\/p\u003e\n\u003cp\u003eThis two-piece telescoping system adjusts to fit variable product heights, eliminating the need for multiple box sizes and reducing SKU complexity. ECT-32 single-wall kraft construction with full overlap (FOL) bottom provides reliable stacking strength and transit protection, while the compact 4x4\" footprint optimizes pallet density and freight efficiency for high-volume shipments.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"pf-specs\"\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eECT-32 Single Wall Kraft Corrugated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e4\" W x 4\" D x 48\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eTwo-Piece Telescoping with Full Overlap Bottom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eBundle of 25 Inner Boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRecyclable\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"pf-use-cases\"\u003e\u003ch3\u003eCommon Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShipping rolled materials, tubing, and cylindrical products\u003c\/li\u003e\n\u003cli\u003eE-commerce fulfillment for tall, slender items\u003c\/li\u003e\n\u003cli\u003eSpecialty retail distribution of poles, rods, or handles\u003c\/li\u003e\n\u003cli\u003eIndustrial equipment and component shipping\u003c\/li\u003e\n\u003cli\u003eAdjustable packaging for variable product heights\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pf-included\"\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e25 x 4x4x48\" Telescoping Inner Boxes (ECT-32 Kraft)\u003c\/li\u003e\n\u003cli\u003eNote: Outer boxes (T4448OUTER) sold separately—both pieces required to complete set\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pf-shipping\"\u003e\u003ch3\u003eShipping and Packaging\u003c\/h3\u003e\n\u003cp\u003eShips flat in a compressed bundle of 25 units to maximize freight efficiency. Minimal dimensional weight impact allows consolidation with other corrugated inventory. Requires pairing with T4448OUTER cartons for complete telescoping set assembly.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"pf-faq\"\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails\u003e\u003csummary\u003eHow does the two-piece telescoping design work?\u003c\/summary\u003e\u003cp\u003eThe inner box (T4448INNER) slides into the outer box (T4448OUTER) to create an adjustable fit. This allows you to customize box height to match product length, reducing void fill waste and dimensional weight charges while maintaining consistent bottom footprint dimensions across shipments.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat's the ECT-32 rating and why does it matter?\u003c\/summary\u003e\u003cp\u003eECT-32 indicates edge crush test strength of 32 pounds per linear inch—ideal for single-wall corrugated with moderate stacking loads. The full overlap bottom reinforces corner strength, making this box suitable for stacking 3-5 units high in warehouse environments without crush risk.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan I use the inner box alone, or do I need both pieces?\u003c\/summary\u003e\u003cp\u003eBoth the inner (T4448INNER) and outer (T4448OUTER) boxes are required to create the complete telescoping carton. They are sold separately, so you'll need to order both SKUs to assemble your full packaging solution.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhat products work best in 4x4x48\" boxes?\u003c\/summary\u003e\u003cp\u003eThis size excels for tall, narrow items: tubing (PVC, metal, cardboard), handles, rods, poles, rolled textiles, sports equipment, and specialty components. The adjustable height accommodation means you can use one box size for products ranging from 24\" to 48\" in length, reducing inventory complexity.\u003c\/p\u003e\u003c\/details\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- \/packrift-enriched --\u003e\n\n\u003c!-- packrift-pdp-link-enrichment:v1:start --\u003e\n\u003cp class=\"packrift-pdp-links\" style=\"margin-top:1.25em;font-size:0.95em;color:#222\"\u003e\u003cstrong\u003eRelated guides \u0026amp; tools:\u003c\/strong\u003e \u003ca href=\"https:\/\/packrift.com\/pages\/corrugated-boxes-guide\"\u003eCorrugated Boxes Guide\u003c\/a\u003e · \u003ca href=\"https:\/\/packrift.com\/pages\/box-size-calculator\"\u003eBox Size Calculator\u003c\/a\u003e · \u003ca href=\"https:\/\/packrift.com\/pages\/4x4x48-boxes\"\u003e4X4X48 Boxes\u003c\/a\u003e\u003c\/p\u003e\n\u003c!-- packrift-pdp-link-enrichment:v1:end --\u003e\n","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53446282019184,"sku":"T4448INNER","price":49.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/T4448INNER.jpg?v=1774851347","url":"https:\/\/packrift.com\/products\/4x4x48-ect-32-kraft-telescoping-inner-box-adjustable-design-25-pack","provider":"Packrift","version":"1.0","type":"link"}