This is the A3-B postage box.
It comes in 3mm thick board.
Internal measurement of 438x304x254mm / 17x12x10"
Pack of 25
Remember we can send out up to 25kg of boxes for just one postage price of £6.65(ex vat).
Made from recycled material, our cardboard boxes are manufactured at our factory in York. If this size isn't quite right for you then get in touch as you may find our bespoke service useful if you would prefer a custom box. Whether you require it for postage, packaging or storage, we’ll make the box that you need.