PiP postal guide

PiP postal guide: Royal Mail Pricing in Proportion and BFPO size guidelines

Royal Mail base their postal charges on size as well as weight, and have recently introduced some new sizes. Ensure you keep your postage costs to a minimum by selecting the most suitable products from our range.

Pricing in Proportion size	Letter	Large letter	Small parcel	Medium parcel	Large parcel
Maximum length	240 mm	353 mm	450 mm	610 mm	> 610 mm OR
Maximum width	165 mm	250 mm	350 mm	460 mm	> 460 mm OR
Maximum height	5 mm	25 mm	160 mm	460 mm	> 460 mm
Maximum weight	100 g	750 g	2 kg	20 kg	30 kg
Examples
Greetings cards
Folded letters
Unfolded A4 documents
CDs / DVDs
Magazines
Board game
Clothing
Computer
Suitable postal products from our range
White postal boxes click to view	none	240 x 210 x 20 mm 347 x 242 x 20 mm	110 x 100 x 70 mm 152 x 127 x 95 mm 160 x 150 x 75 mm 220 x 190 x 20 mm 222 x 150 x 88 mm 240 x 240 x 40 mm 240 x 240 x 80 mm 290 x 208 x 95 mm 340 x 110 x 110 mm 375 x 255 x 150 mm 400 x 330 x 40 mm 426 x 342 x 74 mm	366 x 266 x 279 mm 525 x 350 x 210 mm 102 x 102 x 102 mm	560 x 460 x 340 mm 600 x 400 x 85 mm
Brown postal boxes click to view	none	none	110 x 100 x 70 mm 152 x 127 x 95 mm 160 x 150 x 75 mm 180 x 120 x 30 mm 185 x 140 x 55 mm 220 x 190 x 19 mm 222 x 150 x 88 mm 240 x 210 x 19 mm 240 x 240 x 40 mm 250 x 150 x 100 mm 254 x 254 x 63 mm 254 x 254 x 102 mm 290 x 208 x 95 mm 330 x 220 x 150 mm 340 x 110 x 110 mm 347 x 242 x 19 mm 375 x 255 x 150 mm 426 x 300 x 150 mm 426 x 342 x 74 mm	430 x 400 x 80 mm	none
Large letter postal boxes click to view	none	101 x 101 x 19 mm 160 x 110 x 19 mm 217 x 108 x 19 mm 225 x 160 x 19 mm 320 x 230 x 19 mm	none	none	none
E-commerce boxes postal boxes click to view	none	none	110 x 100 x 70 mm 160 x 150 x 75 mm 222 x 150 x 88 mm 290 x 208 x 95 mm 290 x 208 x 95 mm 330 x 220 x 150 mm 375 x 255 x 150 mm 426 x 300 x 150 mm	none	none
Kite mailer bubble lined envelopes click to view	none	Size KM1 Size KM2 Size KM3 Size KM4 Size KM5 Size KM6	Size KM7 Size KM8 Size KM9 Size KM10	many sizes	Size KM12
Jiffy bubble lined envelopes click to view	none	Size 000 Size 00 Size 0 Size 1 Size 2 Size 3 Size 4	Size 5 Size 6 Size 7	many sizes	Size 8
Standard mailing bags click to view	none	KE1 KE2	KE3 KE4	KE5 KE6	KE7 KE8 KE9
White mailing bags click to view	none	KEW1	KEW2	KEW3 KEW4	KEW5
Book wrap mailers click to view	none	none	Size 1 Size 2 Size 3 Size 4	Size 5	none