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Large Postal Boxes

Explore our collection of large postal boxes, from A4 mailing boxes to book wrap mailers and rigid two-piece solutions. Use these for a range of goods and bulkier items - take a look here...
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16 products
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16 products
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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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 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 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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Large Kraft Recycled Cardboard Envelope Large Kraft Recycled Cardboard Envelope
Large Kraft Recycled Cardboard Envelope
#CMKR31 310 x 209 x 37mm
From £0.67£0.56
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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 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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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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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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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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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 £0.98£0.82
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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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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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Showing 16 of 16 products

Large Postal Boxes – Strong, Spacious & Sustainable

Explore our range of large postal boxes, ideal for sending bulkier items securely and professionally. Whether you’re a small business, online retailer, or simply sending a gift, these boxes offer reliable protection and a clean, presentable look.

Choose from flat-pack A4 mailing boxes, book wrap mailers, and rigid two-piece boxes - with lots of options designed to fit larger or multi-item shipments.

Use our large mailing boxes to ship clothing, footwear and accessories, homeware and decor like candles, kitchenware, and ornaments, and gift hampers and subscription boxes.

Why Choose Our Large Postal Boxes?

Durable and protective: Made from sturdy cardboard for safe transit.

Eco-friendly: Recyclable and sustainable, supporting greener shipping.

Space-efficient: Flat-pack design makes storage and assembly simple.

Wholesale-ready: Great for bulk orders and business logistics.

Looking to personalise? Many boxes can be digitally printed with your logo or message, or you can apply branded stickers for a simple finish.

Need smaller sizes? See our full range of postal boxes for more options - with A6 and A5 mailing boxes as well as postal bags, packing tape, and more.

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