{"title":"Triangular Postal Tubes","description":"\u003cp\u003eOur triangular postal tubes are designed for sending long, rigid items that need structure and crush resistance without the drawbacks of round tubes. Manufactured from high quality kraft B flute corrugated board, they provide consistent wall strength while remaining lightweight and easy to store.\u003c\/p\u003e\n\u003cp\u003eThe triangular format prevents rolling during handling and transport. This reduces movement on conveyor belts and improves stability through automated sortation, which is particularly useful when sending items through postal and courier networks.\u003c\/p\u003e\n\u003ch2\u003eWhat makes our triangular tubes different\u003c\/h2\u003e\n\u003cp\u003eAll sizes in this range are made from the same grade of kraft B flute board. B flute refers to the corrugation profile, offering a balance of rigidity and material weight, making it well suited to postal packaging. The roll-up design folds along pre-creased panels to form a strong triangular structure with reinforced edges.\u003c\/p\u003e\n\u003cp\u003eEach tube features a full length peel and seal strip. This is a pressure-sensitive adhesive strip that removes the need for tape, speeding up packing and giving a clean, tamper-resistant closure. Tuck-in end tabs add further security at each end, creating multiple layers of board at the corners where impact is most likely.\u003c\/p\u003e\n\u003ch2\u003eCommon uses\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePosters, prints and artwork\u003c\/li\u003e\n\u003cli\u003eTechnical drawings, plans and blueprints\u003c\/li\u003e\n\u003cli\u003eCalendars and point of sale materials\u003c\/li\u003e\n\u003cli\u003eLong components or lightweight cylindrical products\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable sizes\u003c\/h2\u003e\n\u003cp\u003eWe stock five popular sizes, all offered at highly competitive UK pricing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e310 x 100 x 100 mm\u003c\/li\u003e\n\u003cli\u003e430 x 100 x 100 mm\u003c\/li\u003e\n\u003cli\u003e640 x 100 x 100 mm\u003c\/li\u003e\n\u003cli\u003e750 x 127 x 127 mm\u003c\/li\u003e\n\u003cli\u003e950 x 142 x 142 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll sizes are supplied flat packed to reduce storage space and inbound transport costs. Once erected, the triangular shape allows the tubes to stack neatly without rolling, helping to keep packing benches and warehouse locations organised.\u003c\/p\u003e\n\u003ch2\u003eMaterial and sustainability\u003c\/h2\u003e\n\u003cp\u003eThe kraft corrugated board used in these triangular postal tubes is fully recyclable through standard cardboard recycling streams. The single wall construction keeps material usage sensible while still providing the rigidity needed for postal protection.\u003c\/p\u003e\n\u003cp\u003eIf you are looking for a reliable alternative to round postal tubes, with faster packing and better stability in transit, this triangular range offers a practical and cost-conscious option.\u003c\/p\u003e","products":[{"product_id":"triangular-postal-tubes-a3-310-x-100-x-100mm","title":"Triangular Postal Tubes A3 310 x 100 x 100mm","description":"\u003ch3 style=\"font-size: 18px;\"\u003eTriangular Postal Tubes at Unbeatable Prices\u003c\/h3\u003e\n\u003cul class=\"benefit\"\u003e\n\u003cli\u003eStrong kraft B flute corrugated board construction\u003c\/li\u003e\n\u003cli\u003eTriangular design prevents rolling during transit and storage\u003c\/li\u003e\n\u003cli\u003eFull length peel and seal strip with tuck-in end tabs\u003c\/li\u003e\n\u003cli\u003eSupplied flat packed for space-saving storage\u003c\/li\u003e\n\u003cli\u003eAlso known as triangular postal boxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis A3 triangular postal tube measures 310 x 100 x 100mm and is designed for securely posting posters, prints, artwork and other long, rigid items. The triangular format, often referred to as a triangular postal box, creates reinforced edges and improved crush resistance compared with round tubes, while remaining lightweight for postal use.\u003c\/p\u003e\n\u003cp\u003eManufactured from high quality kraft B flute corrugated board, these tubes offer a consistent balance of rigidity and material weight. B flute refers to the corrugation profile, which is well suited to postal packaging where strength and presentation both matter. Once erected, the triangular shape helps prevent movement on conveyor systems and stops the tube rolling during handling.\u003c\/p\u003e\n\u003cp\u003eThe roll-up design folds quickly along pre-creased panels and is secured using a full length peel and seal strip, removing the need for tape. Tuck-in end tabs add further security at each end, creating multiple layers of board where impact is most likely.\u003c\/p\u003e\n\u003cp\u003eSupplied in packs of 25, with a pallet quantity of 2400 units. All tubes are delivered flat packed to reduce storage space and inbound transport costs.\u003c\/p\u003e\n\u003cp\u003eLooking for bespoke printed triangular postal tubes to promote your brand? \u003ca href=\"https:\/\/thepackagingclub.co.uk\/pages\/contact\"\u003eTalk to our sales team today.\u003c\/a\u003e\u003c\/p\u003e","brand":"The Packaging Club","offers":[{"title":"Pack 25 units","offer_id":42093344849975,"sku":"TPT-310-100-100-PACK","price":9.0,"currency_code":"GBP","in_stock":true},{"title":"Pallet 2400 units","offer_id":42093344915511,"sku":"TPT-310-100-100-PALLET","price":672.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/0704\/8759\/files\/Triangularpostaltubes_0000_TPT-310-100-100.jpg?v=1772374819"},{"product_id":"triangular-postal-tubes-a3-430-x-100-x-100mm","title":"Triangular Postal Tubes A3 430 x 100 x 100mm","description":"\u003ch3 style=\"font-size: 18px;\"\u003eTriangular Postal Tubes at Unbeatable Prices\u003c\/h3\u003e\n\u003cul class=\"benefit\"\u003e\n\u003cli\u003eStrong kraft B flute corrugated board construction\u003c\/li\u003e\n\u003cli\u003eTriangular design prevents rolling during transit and storage\u003c\/li\u003e\n\u003cli\u003eFull length peel and seal strip with tuck-in end tabs\u003c\/li\u003e\n\u003cli\u003eSupplied flat packed for space-saving storage\u003c\/li\u003e\n\u003cli\u003eAlso known as triangular postal boxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis A3 triangular postal tube measures 430 x 100 x 100mm and is designed for securely posting posters, prints, artwork and other long, rigid items. It is particularly well suited to A3 documents, including oversized formats such as SRA3, giving extra clearance for easier rolling and insertion without damaging edges.\u003c\/p\u003e\n\u003cp\u003eThe triangular format, often referred to as a triangular postal box, creates reinforced edges and improved crush resistance compared with round tubes, while remaining lightweight for postal use.\u003c\/p\u003e\n\u003cp\u003eManufactured from high quality kraft B flute corrugated board, these tubes offer a consistent balance of rigidity and material weight. B flute refers to the corrugation profile, which is well suited to postal packaging where strength and presentation both matter. Once erected, the triangular shape helps prevent movement on conveyor systems and stops the tube rolling during handling.\u003c\/p\u003e\n\u003cp\u003eThe roll-up design folds quickly along pre-creased panels and is secured using a full length peel and seal strip, removing the need for tape. Tuck-in end tabs add further security at each end, creating multiple layers of board where impact is most likely.\u003c\/p\u003e\n\u003cp\u003eSupplied in packs of 25, with a pallet quantity of 1600 units. All tubes are delivered flat packed to reduce storage space and inbound transport costs.\u003c\/p\u003e\n\u003cp\u003eLooking for bespoke printed triangular postal tubes to promote your brand? \u003ca href=\"https:\/\/thepackagingclub.co.uk\/pages\/contact\"\u003eTalk to our sales team today.\u003c\/a\u003e\u003c\/p\u003e","brand":"The Packaging Club","offers":[{"title":"Pack 25 units","offer_id":42207262375991,"sku":"TPT-430-100-100-PACK","price":10.0,"currency_code":"GBP","in_stock":true},{"title":"Pallet 1600 units","offer_id":42207262408759,"sku":"TPT-430-100-100-PALLET","price":512.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/0704\/8759\/files\/Triangularpostaltubes_0004_TPT-430-100-100.jpg?v=1777901105"},{"product_id":"triangular-postal-tubes-a2-640-x-100-x-100mm","title":"Triangular Postal Tubes A2 640 x 100 x 100mm","description":"\u003ch3 style=\"font-size: 18px;\"\u003eTriangular Postal Tubes at Unbeatable Prices\u003c\/h3\u003e\n\u003cul class=\"benefit\"\u003e\n\u003cli\u003eStrong kraft B flute corrugated board construction\u003c\/li\u003e\n\u003cli\u003eTriangular design prevents rolling during transit and storage\u003c\/li\u003e\n\u003cli\u003eFull length peel and seal strip with tuck-in end tabs\u003c\/li\u003e\n\u003cli\u003eSupplied flat packed for space-saving storage\u003c\/li\u003e\n\u003cli\u003eAlso known as triangular postal boxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis A2 triangular postal tube measures 640 x 100 x 100mm and is designed for securely posting posters, prints, artwork and other long, rigid items. It is ideally suited to A2 documents, while also comfortably accommodating smaller formats such as A3 without excessive rolling.\u003c\/p\u003e\n\u003cp\u003eThe triangular format, often referred to as a triangular postal box, creates reinforced edges and improved crush resistance compared with round tubes, while remaining lightweight for postal use.\u003c\/p\u003e\n\u003cp\u003eManufactured from high quality kraft B flute corrugated board, these tubes offer a consistent balance of rigidity and material weight. B flute refers to the corrugation profile, which is well suited to postal packaging where strength and presentation both matter. Once erected, the triangular shape helps prevent movement on conveyor systems and stops the tube rolling during handling.\u003c\/p\u003e\n\u003cp\u003eThe roll-up design folds quickly along pre-creased panels and is secured using a full length peel and seal strip, removing the need for tape. Tuck-in end tabs add further security at each end, creating multiple layers of board where impact is most likely.\u003c\/p\u003e\n\u003cp\u003eSupplied in packs of 25, with a pallet quantity of 1600 units. All tubes are delivered flat packed to reduce storage space and inbound transport costs.\u003c\/p\u003e\n\u003cp\u003eLooking for bespoke printed triangular postal tubes to promote your brand? \u003ca href=\"https:\/\/thepackagingclub.co.uk\/pages\/contact\"\u003eTalk to our sales team today.\u003c\/a\u003e\u003c\/p\u003e","brand":"The Packaging Club","offers":[{"title":"Pack 25 units","offer_id":42207264800823,"sku":"TPT-640-100-100-PACK","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"Pallet 1600 units","offer_id":42207264833591,"sku":"TPT-640-100-100-PALLET","price":768.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/0704\/8759\/files\/Triangularpostaltubes_0000_TPT-640-100-100.jpg?v=1777901166"},{"product_id":"triangular-postal-tubes-a1-950-x-142-x-142mm","title":"Triangular Postal Tubes A1 750 x 127 x 127mm","description":"\u003ch3 style=\"font-size: 18px;\"\u003eTriangular Postal Tubes at Unbeatable Prices\u003c\/h3\u003e\n\u003cul class=\"benefit\"\u003e\n\u003cli\u003eStrong kraft B flute corrugated board construction\u003c\/li\u003e\n\u003cli\u003eTriangular design prevents rolling during transit and storage\u003c\/li\u003e\n\u003cli\u003eFull length peel and seal strip with tuck-in end tabs\u003c\/li\u003e\n\u003cli\u003eSupplied flat packed for space-saving storage\u003c\/li\u003e\n\u003cli\u003eAlso known as triangular postal boxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis A1 triangular postal tube measures 750 x 127 x 127mm and is designed for securely posting posters, prints, artwork and other long, rigid items. It is suitable for A1 documents when tightly rolled, and offers ample space for A2 and smaller formats where a looser roll is preferred to protect edges and print quality.\u003c\/p\u003e\n\u003cp\u003eThe triangular format, often referred to as a triangular postal box, creates reinforced edges and improved crush resistance compared with round tubes, while remaining lightweight for postal use.\u003c\/p\u003e\n\u003cp\u003eManufactured from high quality kraft B flute corrugated board, these tubes offer a consistent balance of rigidity and material weight. B flute refers to the corrugation profile, which is well suited to postal packaging where strength and presentation both matter. Once erected, the triangular shape helps prevent movement on conveyor systems and stops the tube rolling during handling.\u003c\/p\u003e\n\u003cp\u003eThe roll-up design folds quickly along pre-creased panels and is secured using a full length peel and seal strip, removing the need for tape. Tuck-in end tabs add further security at each end, creating multiple layers of board where impact is most likely.\u003c\/p\u003e\n\u003cp\u003eSupplied in packs of 25, with a pallet quantity of 800 units. All tubes are delivered flat packed to reduce storage space and inbound transport costs.\u003c\/p\u003e\n\u003cp\u003eLooking for bespoke printed triangular postal tubes to promote your brand? \u003ca href=\"https:\/\/thepackagingclub.co.uk\/pages\/contact\"\u003eTalk to our sales team today.\u003c\/a\u003e\u003c\/p\u003e","brand":"The Packaging Club","offers":[{"title":"Pack 25 units","offer_id":42207265783863,"sku":"TPT-750-127-127-PACK","price":20.5,"currency_code":"GBP","in_stock":true},{"title":"Pallet 800 units","offer_id":42207265816631,"sku":"TPT-750-127-127-PALLET","price":576.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/0704\/8759\/files\/Triangularpostaltubes_0003_triangularboxestuberangeshot.jpg?v=1777901129"},{"product_id":"triangular-postal-tubes-a1-or-b1-950-x-142-x-142mm","title":"Triangular Postal Tubes A1 or B1 950 x 142 x 142mm","description":"\u003ch3 style=\"font-size: 18px;\"\u003eTriangular Postal Tubes at Unbeatable Prices\u003c\/h3\u003e\n\u003cul class=\"benefit\"\u003e\n\u003cli\u003eStrong kraft B flute corrugated board construction\u003c\/li\u003e\n\u003cli\u003eTriangular design prevents rolling during transit and storage\u003c\/li\u003e\n\u003cli\u003eFull length peel and seal strip with tuck-in end tabs\u003c\/li\u003e\n\u003cli\u003eSupplied flat packed for space-saving storage\u003c\/li\u003e\n\u003cli\u003eAlso known as triangular postal boxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis large format triangular postal tube measures 950 x 142 x 142mm and is designed for securely posting A1 and B1 documents, posters, plans and other long, rigid items. The extended length and wider diameter allow for a looser roll, which helps protect edges, reduce curl memory and maintain print quality during transit.\u003c\/p\u003e\n\u003cp\u003eThe triangular format, often referred to as a triangular postal box, creates reinforced edges and improved crush resistance compared with round tubes, while remaining lightweight for postal use. The larger profile also increases internal capacity, making it suitable for bulkier or multiple rolled items.\u003c\/p\u003e\n\u003cp\u003eManufactured from high quality kraft B flute corrugated board, these tubes offer a consistent balance of rigidity and material weight. B flute refers to the corrugation profile, which is well suited to postal packaging where strength and presentation both matter. Once erected, the triangular shape helps prevent movement on conveyor systems and stops the tube rolling during handling.\u003c\/p\u003e\n\u003cp\u003eThe roll-up design folds quickly along pre-creased panels and is secured using a full length peel and seal strip, removing the need for tape. Tuck-in end tabs add further security at each end, creating multiple layers of board where impact is most likely.\u003c\/p\u003e\n\u003cp\u003eSupplied in packs of 25, with a pallet quantity of 800 units. All tubes are delivered flat packed to reduce storage space and inbound transport costs.\u003c\/p\u003e\n\u003cp\u003eLooking for bespoke printed triangular postal tubes to promote your brand? \u003ca href=\"https:\/\/thepackagingclub.co.uk\/pages\/contact\"\u003eTalk to our sales team today.\u003c\/a\u003e\u003c\/p\u003e","brand":"The Packaging Club","offers":[{"title":"Pack 25 units","offer_id":42207272075319,"sku":"TPT-950-142-142-PACK","price":27.5,"currency_code":"GBP","in_stock":true},{"title":"Pallet 800 units","offer_id":42207272108087,"sku":"TPT-950-142-142-PALLET","price":664.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/0704\/8759\/files\/Triangularpostaltubes_0003_triangularboxestuberangeshot.jpg?v=1777901129"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/0704\/8759\/collections\/Triangularpostaltubes_0000_TPT-310-100-100_d59eb8f3-17c9-49ef-99c7-feec9b15e509.jpg?v=1777901470","url":"https:\/\/thepackagingclub.co.uk\/collections\/triangular-postal-tubes.oembed","provider":"The Packaging Club","version":"1.0","type":"link"}