A presentation carton, still a postal size
White postal boxes are a 125WK/T finish. Shell-and-slide versions include foam. The category says the white postal boxes in stock qualify as Royal Mail small parcels.
A trade reorder of white outers does not get a larger maximum. The outside limit on our changes page is 450 x 350 x 160 mm.
With tape and fill
White cartons can sit on the same Packaging Wholesale order as tape and void fill. In by 3pm, they leave that day. Free UK delivery starts over £50 ex VAT.