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Brand OnlineNo Insert White Corrugated Postal Box 103mm lengthFMWH01 103 x 85 x 60mmFrom £0.38£0.32£0.56 £0.47
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Brand OnlineNo Insert White Corrugated Postal Box 125mm lengthFMWH02 125 x 103 x 80mmFrom £0.44£0.37£0.72 £0.60
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Brand OnlineNo Insert White Corrugated Postal Box 154mm lengthFMWH03 154 x 150 x 60mmFrom £0.44£0.37£0.71 £0.59
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Brand OnlineNo Insert White Corrugated Postal Box 178mm lengthFMWH08 178 x 144 x 56mmFrom £0.49£0.41£0.77 £0.64
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Brand OnlineNo Insert White Corrugated Postal Box 310mm lengthFMWH07 310 x 237 x 62mmFrom £0.55£0.46£0.85 £0.71
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Brand Online Black 1-Piece A6 Corrugated Postal BoxFMBLA6 178 x 131 x 55mmFrom £0.77£0.64£0.94 £0.78
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Brand Online Black 1-Piece A4 Corrugated Postal BoxFMBLA4 322 x 228 x 55mmFrom £1.81£1.51£2.09 £1.74
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Brand Online Black 1-Piece A5 Corrugated Postal BoxFMBLA5 244 x 180 x 55mmFrom £1.20£1.00£1.37 £1.14
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Brand Online Kraft Brown Postal Box for Mailing Large Magnetic BoxFMKR40 420 x 315 x 116mmFrom £1.50£1.25£1.91 £1.59
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Kraft Perforated Wrap Small Mailing Box with Tear StripFMKR54 257 x 165 x 45mmFrom £0.44£0.37£0.73 £0.61
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Kraft Perforated Wrap Medium Mailing Box with Tear StripFMKR58 317 x 211 x 67mmFrom £0.68£0.57£0.85 £0.71
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Kraft Perforated Wrap Large Mailing Box with Tear StripFMKR64 347 x 255 x 47mmFrom £0.83£0.69£0.98 £0.82
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Brand meNo Insert Apricot Crush Orange Deep 1-Piece A6 Mailing Gift BoxFMACA6 178 x 131 x 55mm£1.22 £1.02
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Brand OnlineNo Insert White Corrugated Postal Box White InternalFMWW07 310 x 237 x 62mmFrom £0.98£0.82£1.20 £1.00
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Brand OnlineNo Insert White Corrugated Postal Box White Internal 154mm lengthFMWW03 154 x 150 x 60mmFrom £0.62£0.52£0.74 £0.62
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Brand OnlineNo InsertBestseller Kraft 1-Piece A6 Corrugated Postal BoxFMKRA6 178 x 131 x 55mmFrom £0.41£0.34£0.62 £0.52
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Brand OnlineNo InsertBestseller Kraft 1-Piece A5 Corrugated Postal BoxFMKRA5 244 x 180 x 55mmFrom £0.59£0.49£0.95 £0.79
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Brand OnlineNo Insert Kraft 1-Piece A4 Corrugated Postal BoxFMKRA4 322 x 228 x 55mmFrom £0.85£0.71£1.34 £1.12
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Brand OnlineNo Insert Kraft Brown Postal Box for Mailing Medium Magnetic BoxFMKR16 218 x 175 x 90mmFrom £0.73£0.61£0.85 £0.71
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Brand OnlineNo Insert Kraft Brown Postal Box for Mailing Deep Magnetic BoxFMKR22 300 x 235 x 122mmFrom £0.94£0.78£1.14 £0.95
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Brand OnlineNo Insert Kraft Brown Postal Box for Mailing Small Magnetic BoxFMKR12 160 x 135 x 78mmFrom £0.42£0.35£0.49 £0.41
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Brand OnlineNo Insert Kraft 1-Piece Cube Postal BoxFMKRCU 127 x 127 x 127mmFrom £0.26£0.22£0.42 £0.35
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Brand OnlineNo Insert Kraft 1-Piece Thin A6 Corrugated Postal Gift BoxFMA6KR22 178 x 131 x 22mmFrom £0.35£0.29£0.55 £0.46
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Brand Online Slim A5 Corrugated Flat Mailing BoxFMA5KR22 238 x 180 x 22mmFrom £0.55£0.46£0.89 £0.74
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Brand Online Slim A4 Corrugated Flat Mailing BoxFMA4KR22 322 x 228 x 22mmFrom £0.80£0.67£1.21 £1.01
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Brand OnlineNo Insert Kraft Brown Double Walled Postal Box for Deep Magnetic BoxFMKR31EB 330 x 235 x 75mmFrom £1.02£0.85£1.19 £0.99
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Brand OnlineNo Insert Kraft Brown Double Walled Postal Box for Deep Magnetic BoxFMKR23EB 250 x 245 x 110mmFrom £1.19£0.99£1.36 £1.13
Our flat-pack postal boxes are available in various sizes and styles, including classic boxes, pizza-style boxes, and book wrap mailers, perfect for all your shipping needs.
What’s a flat-pack box?
A flat-pack box is packaging that arrives flat and easily folds into shape. Unlike rigid boxes, flat-pack boxes save storage space and shipping costs by being compact until needed.
Discover our range of rigid two-piece postal boxes here, also ideal for premium gift packaging.
Key benefits:
Space-saving: Store flat and assemble only when needed, ideal for businesses managing limited storage space.
Easy assembly: Quick-fold designs with self-locking tabs - no tape or glue required.
Durable protection: Strong corrugated cardboard ensures safe shipping for delicate items.
Customisable: Easily branded with logos or custom designs, enhancing your customer's unboxing experience.
Common uses:
E-commerce shipping: Secure, professional packaging for online retailers.
Gifts & subscriptions: Durable and stylish for a memorable unboxing experience.
Storage & organisation: Convenient for storing documents, books, and supplies at home or in the office.
Explore our complete selection of postal boxes here!