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  • 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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Small Postal Boxes Small Postal Boxes
Medium Postal Boxes Medium Postal Boxes
Large Postal Boxes Large Postal Boxes
Postal Boxes to fit A4 Postal Boxes to fit A4
Postal Boxes to fit A5 Postal Boxes to fit A5
Postal Boxes to fit A6 Postal Boxes to fit A6
Flat Packed Postal Boxes Flat Packed Postal Boxes
Rigid Two-Piece Postal Boxes Rigid Two-Piece Postal Boxes
Pizza Box Style Postal Boxes Pizza Box Style Postal Boxes
Book Wrap Mailers Book Wrap Mailers
Packing Items Packing Items
White Postal Boxes White Postal Boxes
Black Postal Boxes Black Postal Boxes
Kraft Postal Boxes Kraft Postal Boxes
Recycled Cardboard Envelopes Recycled Cardboard Envelopes
Recycled Postal Bags Recycled Postal Bags
Flexi-Hex® Postal Sleeves Flexi-Hex® Postal Sleeves
Recycled Jiffy Bags Recycled Jiffy Bags
Subscription Postal Boxes Subscription Postal Boxes
Flower Boxes Flower Boxes
Paper Mailing Bags Paper Mailing Bags
Postal Boxes with Coloured Lining Postal Boxes with Coloured Lining
Royal Mail Large Letter Boxes Royal Mail Large Letter Boxes
147 products
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147 products
Kraft 1-Piece A6 Corrugated Postal Box Kraft 1-Piece A6 Corrugated Postal Box
Kraft 1-Piece A6 Corrugated Postal Box
#FMKRA6 178 x 131 x 55mm
From £0.41£0.34
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Black 1-Piece A6 Corrugated Postal Box Black 1-Piece A6 Corrugated Postal Box
Black 1-Piece A6 Corrugated Postal Box
#FMBLA6 178 x 131 x 55mm
From £0.77£0.64
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Kraft 1-Piece Thin A6 Corrugated Postal Gift Box Kraft 1-Piece Thin A6 Corrugated Postal Gift Box
Kraft 1-Piece Thin A6 Corrugated Postal Gift Box
#FMA6KR22 178 x 131 x 22mm
From £0.35£0.29
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Black 1-Piece Thin A6 Corrugated Postal Box Black 1-Piece Thin A6 Corrugated Postal Box
Black 1-Piece Thin A6 Corrugated Postal Box
#FMA6BL22 178 x 131 x 22mm
From £0.58£0.48
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Kraft 1-Piece A5 Corrugated Postal Box Kraft 1-Piece A5 Corrugated Postal Box
Kraft 1-Piece A5 Corrugated Postal Box
#FMKRA5 244 x 180 x 55mm
From £0.59£0.49
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Black 1-Piece A5 Corrugated Postal Box Black 1-Piece A5 Corrugated Postal Box
Black 1-Piece A5 Corrugated Postal Box
#FMBLA5 244 x 180 x 55mm
From £1.20£1.00
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Slim A5 Corrugated Flat Mailing Box Slim A5 Corrugated Flat Mailing Box
Slim A5 Corrugated Flat Mailing Box
#FMA5KR22 238 x 180 x 22mm
From £0.55£0.46
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Slim A5 Flat Corrugated Mailing Box Slim A5 Flat Corrugated Mailing Box
Slim A5 Flat Corrugated Mailing Box
#FMA5BL22 238 x 180 x 22mm
From £1.04£0.87
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Kraft 1-Piece A4 Corrugated Postal Box Kraft 1-Piece A4 Corrugated Postal Box
Kraft 1-Piece A4 Corrugated Postal Box
#FMKRA4 322 x 228 x 55mm
From £0.85£0.71
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Black 1-Piece A4 Corrugated Postal Box Black 1-Piece A4 Corrugated Postal Box
Black 1-Piece A4 Corrugated Postal Box
#FMBLA4 322 x 228 x 55mm
From £1.81£1.51
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Slim A4 Corrugated Flat Mailing Box Slim A4 Corrugated Flat Mailing Box
Slim A4 Corrugated Flat Mailing Box
#FMA4KR22 322 x 228 x 22mm
From £0.80£0.67
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Slim A4 Flat Corrugated Mailing Box Slim A4 Flat Corrugated Mailing Box
Slim A4 Flat Corrugated Mailing Box
#FMA4BL22 322 x 228 x 22mm
From £1.13£0.94
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Kraft Brown Double Walled Postal Box for A4 Magnetic Box Kraft Brown Double Walled Postal Box for A4 Magnetic Box
Kraft Brown Double Walled Postal Box for A4 Magnetic Box
#FMKR31EB 330 x 235 x 75mm
From £1.02£0.85
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Kraft Brown Double Walled Postal Box for Square Magnetic Box Kraft Brown Double Walled Postal Box for Square Magnetic Box
Kraft Brown Double Walled Postal Box for Square Magnetic Box
#FMKR23EB 250 x 245 x 110mm
From £1.19£0.99
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Kraft Brown Double Walled Postal Box for Mailing Deep Magnetic Box Kraft Brown Double Walled Postal Box for Mailing Deep Magnetic Box
Kraft Brown Double Walled Postal Box for Mailing Deep Magnetic Box
#FMKR22EB 300 x 235 x 122mm
From £1.27£1.06
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Kraft Brown Double Walled Postal Box for Mailing Large Magnetic Box Kraft Brown Double Walled Postal Box for Mailing Large Magnetic Box
Kraft Brown Double Walled Postal Box for Mailing Large Magnetic Box
#FMKR40EB 420 x 315 x 116mm
From £1.73£1.44
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Kraft Brown Postal Box for Mailing Small Magnetic Box
Kraft Brown Postal Box for Mailing Small Magnetic Box
#FMKR12RF 160 x 135 x 78mm
From £0.50£0.42
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White Corrugated Postal Box 310mm length White Corrugated Postal Box 310mm length
White Corrugated Postal Box 310mm length
#FMWH07 310 x 237 x 62mm
From £0.55£0.46
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White Corrugated Postal Box 178mm length White Corrugated Postal Box 178mm length
White Corrugated Postal Box 178mm length
#FMWH08 178 x 144 x 56mm
From £0.49£0.41
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White Corrugated Postal Box 154mm length White Corrugated Postal Box 154mm length
White Corrugated Postal Box 154mm length
#FMWH03 154 x 150 x 60mm
From £0.44£0.37
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White Corrugated Postal Box 125mm length White Corrugated Postal Box 125mm length
White Corrugated Postal Box 125mm length
#FMWH02 125 x 103 x 80mm
From £0.44£0.37
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White Corrugated Postal Box 103mm length White Corrugated Postal Box 103mm length
White Corrugated Postal Box 103mm length
#FMWH01 103 x 85 x 60mm
From £0.38£0.32
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E-Commerce Corrugated Kraft Boxes 330mm length E-Commerce Corrugated Kraft Boxes 330mm length
E-Commerce Corrugated Kraft Boxes 330mm length
#ECKR33 330 x 220 x 150mm
From £1.84£1.53
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Reversible Flower Letterbox Postal Mailing Box Reversible Flower Letterbox Postal Mailing Box
Reversible Flower Letterbox Postal Mailing Box
#FLKR33 590 x 175 x 34mm
£1.04 £0.87
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Kraft 1-Piece Cube Postal Box
Kraft 1-Piece Cube Postal Box
#FMKRCU 127 x 127 x 127mm
From £0.26£0.22
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Kraft Perforated Wrap Large Mailing Box with Tear Strip Kraft Perforated Wrap Large Mailing Box with Tear Strip
Kraft Perforated Wrap Large Mailing Box with Tear Strip
#FMKR64 347 x 255 x 47mm
From £0.83£0.69
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Kraft Perforated Wrap Medium Mailing Box with Tear Strip Kraft Perforated Wrap Medium Mailing Box with Tear Strip
Kraft Perforated Wrap Medium Mailing Box with Tear Strip
#FMKR58 317 x 211 x 67mm
From £0.68£0.57
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Kraft Perforated Wrap Small Mailing Box with Tear Strip Kraft Perforated Wrap Small Mailing Box with Tear Strip
Kraft Perforated Wrap Small Mailing Box with Tear Strip
#FMKR54 257 x 165 x 45mm
From £0.44£0.37
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Lilac Deep 1-Piece A6 Mailing Gift Box Lilac Deep 1-Piece A6 Mailing Gift Box
Lilac Deep 1-Piece A6 Mailing Gift Box
#FMLIA6 178 x 131 x 55mm
From £1.22 £1.02
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Rose Quartz Deep 1-Piece A6 Mailing Gift Box Rose Quartz Deep 1-Piece A6 Mailing Gift Box
Rose Quartz Deep 1-Piece A6 Mailing Gift Box
#FMRQA6 178 x 131 x 55mm
From £1.22 £1.02
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Sage Green Deep 1-Piece A6 Mailing Gift Box Sage Green Deep 1-Piece A6 Mailing Gift Box
Sage Green Deep 1-Piece A6 Mailing Gift Box
#FMSGA6 178 x 131 x 55mm
From £1.22 £1.02
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Radiant Red Deep 1-Piece A6 Mailing Gift Box Radiant Red Deep 1-Piece A6 Mailing Gift Box
Radiant Red Deep 1-Piece A6 Mailing Gift Box
#FMRRA6 178 x 131 x 55mm
From £1.22 £1.02
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Apricot Crush Orange Deep 1-Piece A6 Mailing Gift Box Apricot Crush Orange Deep 1-Piece A6 Mailing Gift Box
Apricot Crush Orange Deep 1-Piece A6 Mailing Gift Box
#FMACA6 178 x 131 x 55mm
From £1.22 £1.02
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Lilac 1-Piece A6 Mailing Gift Box Lilac 1-Piece A6 Mailing Gift Box
Lilac 1-Piece A6 Mailing Gift Box
#FMA6LI22 178 x 131 x 22mm
From £0.36 £0.30
ex. VAT £0.78
£0.78
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Rose Quartz 1-Piece A6 Mailing Gift Box Rose Quartz 1-Piece A6 Mailing Gift Box
Rose Quartz 1-Piece A6 Mailing Gift Box
#FMA6RQ22 178 x 131 x 22mm
From £0.36 £0.30
ex. VAT £0.78
£0.78
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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 £0.36 £0.30
ex. VAT £0.78
£0.78
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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 £0.36 £0.30
ex. VAT £0.78
£0.78
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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 £1.60£1.33
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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 £0.95£0.79
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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 £0.89£0.74
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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 £2.08£1.73
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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 £2.02£1.68
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Showing 44 of 147 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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