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Over 18 years Experience in Luxury & Sustainable Packaging
  • The Tiny Box Company
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Delivery Boxes

Shop our large range of postal boxes in sizes from small, medium, and large, with Royal Mail large letter boxes, book wrap mailers, and flower boxes available too.
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149 products
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149 products
Sage Green 1-Piece A6 Mailing Gift Box Sage Green 1-Piece A6 Mailing Gift Box
Sage Green 1-Piece A6 Mailing Gift Box
#FMA6SG22 178 x 131 x 22mm
From £0.78 £0.65
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Radiant Red 1-Piece A6 Mailing Gift Box Radiant Red 1-Piece A6 Mailing Gift Box
Radiant Red 1-Piece A6 Mailing Gift Box
#FMA6RR22 178 x 131 x 22mm
From £0.78 £0.65
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White Flat Packed Micro Corrugated Mug Gift Box White Flat Packed Micro Corrugated Mug Gift Box
White Flat Packed Micro Corrugated Mug Gift Box
#FCWHMU 112 x 112 x 112mm
From £1.26 £1.05
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Kraft Flat Packed Micro Corrugated Mug Gift Box Kraft Flat Packed Micro Corrugated Mug Gift Box
Kraft Flat Packed Micro Corrugated Mug Gift Box
#FCKRMU 112 x 112 x 112mm
From £1.26 £1.05
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Black 1-Piece Tabbed Corrugated Postal Box Black 1-Piece Tabbed Corrugated Postal Box
Black 1-Piece Tabbed Corrugated Postal Box
#FMBL07 310 x 237 x 62mm
From £1.33£1.60
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Slim 1-Piece Flat Black Corrugated Postal Box Slim 1-Piece Flat Black Corrugated Postal Box
Slim 1-Piece Flat Black Corrugated Postal Box
#FMBL09 322 x 180 x 20mm
From £0.79£0.95
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Black 1-Piece Matchbox Corrugated Postal Box Black 1-Piece Matchbox Corrugated Postal Box
Black 1-Piece Matchbox Corrugated Postal Box
#FMBL11 139 x 139 x 20mm
From £0.74£0.89
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 210mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 210mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 210mm length
#RMKR26 210 x 160 x 70mm
From £1.73£2.08
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 140mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 140mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 140mm length
#RMKR4B 140 x 102 x 50mm
From £1.68£2.02
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 145mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 145mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 145mm length
#RMKR5B 145 x 102 x 64mm
From £1.42£1.70
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 152mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 152mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 152mm length
#RMKR8N 152 x 115 x 50mm
From £1.49£1.79
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 178mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 178mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 178mm length
#RMKR6B 178 x 105 x 64mm
From £1.33£1.60
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 105mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 105mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 105mm length
#RMKR01 105 x 70 x 40mm
From £1.25£1.50
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 120mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 120mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 120mm length
#RMKR02 120 x 80 x 45mm
From £1.17£1.40
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Brown Kraft Rigid 2-Piece Postal Box / Gift Box 206mm length Brown Kraft Rigid 2-Piece Postal Box / Gift Box 206mm length
Brown Kraft Rigid 2-Piece Postal Box / Gift Box 206mm length
#RMKR8B 206 x 90 x 26mm
From £1.15£1.38
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White Rigid 2-Piece Postal Box / Gift Box 120mm length White Rigid 2-Piece Postal Box / Gift Box 120mm length
White Rigid 2-Piece Postal Box / Gift Box 120mm length
#RMWH02 120 x 80 x 45mm
From £2.08 £1.73
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White Rigid 2-Piece Postal Box / Gift Box 105mm length White Rigid 2-Piece Postal Box / Gift Box 105mm length
White Rigid 2-Piece Postal Box / Gift Box 105mm length
#RMWH01 105 x 70 x 40mm
From £1.96 £1.63
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Black Rigid 2-Piece Postal Box / Gift Box 105mm length Black Rigid 2-Piece Postal Box / Gift Box 105mm length
Black Rigid 2-Piece Postal Box / Gift Box 105mm length
#RMBL01 105 x 70 x 40mm
From £1.96 £1.63
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Digital Lavender Rigid 2-Piece Postal Box / Gift Box 105mm length Digital Lavender Rigid 2-Piece Postal Box / Gift Box 105mm length
Digital Lavender Rigid 2-Piece Postal Box / Gift Box 105mm length
#RMLV01 105 x 70 x 40mm
From £1.96 £1.63
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Black Rigid 2-Piece Postal Box / Gift Box 120mm length Black Rigid 2-Piece Postal Box / Gift Box 120mm length
Black Rigid 2-Piece Postal Box / Gift Box 120mm length
#RMBL02 120 x 80 x 45mm
From £2.08 £1.73
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Digital Lavender Rigid 2-Piece Postal Box / Gift Box 120mm length Digital Lavender Rigid 2-Piece Postal Box / Gift Box 120mm length
Digital Lavender Rigid 2-Piece Postal Box / Gift Box 120mm length
#RMLV02 120 x 80 x 45mm
From £2.08 £1.73
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White Slim A6 Corrugated Mailing Box
White Slim A6 Corrugated Mailing Box
#FMA6WH20 160 x 110 x 20mm
From £0.24£0.29
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A5 Slim White Corrugated Mailing Box A5 Slim White Corrugated Mailing Box
A5 Slim White Corrugated Mailing Box
#FMA5WH20 222 x 160 x 20mm
From £0.35£0.42
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Kraft Bottle Postal Box for Mailing Kraft Bottle Postal Box for Mailing
Kraft Bottle Postal Box for Mailing
#FMKR33 345 x 105 x 105mm
From £0.43£0.52
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A4 Slim White Corrugated Mailing Box
A4 Slim White Corrugated Mailing Box
#FMA4WH20 324 x 230 x 20mm
From £0.67£0.80
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White Corrugated Postal Box White Internal White Corrugated Postal Box White Internal
White Corrugated Postal Box White Internal
#FMWW07 310 x 237 x 62mm
From £0.82£0.98
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Pack of 10 E-Commerce Corrugated Kraft Boxes 205mm length Pack of 10 E-Commerce Corrugated Kraft Boxes 205mm length
Pack of 10 E-Commerce Corrugated Kraft Boxes 205mm length
#W2ASCEB1 205 x 150 x 100mm
£14.03 £11.69
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Pack of 10 E-Commerce Corrugated Kraft Boxes 450mm length Pack of 10 E-Commerce Corrugated Kraft Boxes 450mm length
Pack of 10 E-Commerce Corrugated Kraft Boxes 450mm length
#W2ASCEB3 450 x 300 x 150mm
£29.92 £24.93
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Pack of 25 Square Single Wall Kraft Packing Boxes 155mm Pack of 25 Square Single Wall Kraft Packing Boxes 155mm
Pack of 25 Square Single Wall Kraft Packing Boxes 155mm
#W2ASCV060606 155 x 155 x 155mm
£15.23 £12.69
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Pack of 35 A4 Book Mailer Kraft Wraps
Pack of 35 A4 Book Mailer Kraft Wraps
#W2ASCMP00C4 310 x 250 x 70mm
£36.12 £30.10
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Pack of 50 Single Wall White Packing Boxes
Pack of 50 Single Wall White Packing Boxes
#W2ASCV030306 76 x 76 x 152mm
£14.82 £12.35
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Pack of 50 Small White Corrugated Postal Boxes 95mm length Pack of 50 Small White Corrugated Postal Boxes 95mm length
Pack of 50 Small White Corrugated Postal Boxes 95mm length
#W2ASCDB1 95 x 75 x 38mm
£13.60 £11.33
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Pack of 50 Small White Corrugated Postal Boxes 120mm length Pack of 50 Small White Corrugated Postal Boxes 120mm length
Pack of 50 Small White Corrugated Postal Boxes 120mm length
#W2ASCDB2 120 x 120 x 52mm
£16.86 £14.05
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Pack of 50 Medium White Corrugated Postal Boxes 152mm length Pack of 50 Medium White Corrugated Postal Boxes 152mm length
Pack of 50 Medium White Corrugated Postal Boxes 152mm length
#W2ASCDB26 152 x 100 x 70mm
£17.68 £14.73
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Pack of 50 Medium White Corrugated Postal Boxes 232mm length Pack of 50 Medium White Corrugated Postal Boxes 232mm length
Pack of 50 Medium White Corrugated Postal Boxes 232mm length
#W2ASCDB34 232 x 158 x 95mm
£36.43 £30.36
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Pack of 50 Medium White Corrugated Postal Boxes 240mm length Pack of 50 Medium White Corrugated Postal Boxes 240mm length
Pack of 50 Medium White Corrugated Postal Boxes 240mm length
#W2ASCDB8 240 x 165 x 70mm
£25.84 £21.53
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Showing 72 of 149 products

Postal Boxes - Recyclable, Sustainable & Ready to Mail

At Tiny Box Company, we offer a wide range of postal boxes and mailing boxes for everything from personal parcels to high-volume business orders. Our collection includes flat pack and rigid styles in sizes including A6, A5, and A4 - including Royal Mail large letter boxes.

Made from eco-friendly materials like corrugated cardboard, our boxes are strong, secure, and sustainable - ideal for eco-conscious individuals and businesses alike. Use them to ship everything from photographs and stationery to artwork, gifts, or corporate brochures.

What's corrugated cardboard? Quite simply, it's made up of three layers of board - two sheets covering the outside and one in the middle that has a rippled shape. This is what makes it so strong, which is why it's often used for mailing!

Read more here on selecting the perfect material for your gift/postal boxes.

Brighten up your packaging with colourful A6 mailing boxes or go classic with kraft brown and white finishes. For delicate items like books or flowers, explore our kraft mailers and flower letterboxes with circular hole cutouts.

They’re not just for shipping - our boxes are also great for storage, gift presentation, or keeping handmade items protected. And when space is limited, our flat pack options fold down neatly. Need some help choosing the right postal box for your business? Check out our guide here!

Add your logo with digital printing to make a lasting impression. Whether you need a few or are ordering in wholesale quantities, we offer flexible options for every business size.

Finish the look with our eco-friendly postal bags, kraft tape, shredded paper filler, and more packaging accessories - all designed to keep your products safe and stylish.

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