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Your UK specialists in eco-friendly and sustainable gift packaging
Can't find what you're looking for? We have our own UK factory to create your perfect packaging

Flat Packed Postal Boxes

At Tiny Box Company we have an impressive range of flat-packed boxes. There are many different sizes to choose from so we are confident you will find mailing boxes to suit your personal needs.

These flat-pack boxes are not only easy to put together but are also handy for storing away. These is no order limit on any of these delivery boxes so if you want either 1 or 100 that is fine with us!

Our mandate is to provide and use as much recycled material as we possibly can so we take particular pride in telling our customers that all of our Kraft brown flat packed mailing boxes are fully recycled.

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54 products

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  1. White Mailing Box For 103 X 85 X 60mm White White Corrugated Postal Box For 103 X 85 X 60mm
    Brand OnlineNo Insert White Corrugated Postal Box For 103 X 85 X 60mm
    FMWH01 103 x 85 x 60mm
    From £0.37£0.31
    £0.55 £0.46
  2. White Mailing Box For 125 X 114 X 85mm White White Corrugated Postal Box For 125 X 103 X 80mm
    Brand OnlineNo Insert White Corrugated Postal Box For 125 X 103 X 80mm
    FMWH02 125 x 103 x 80mm
    From £0.43£0.36
    £0.70 £0.58
  3. White Mailing Box For 154 X 150 X 60mm White White Corrugated Postal Box For 154 X 150 X 60mm
    Brand OnlineNo Insert White Corrugated Postal Box For 154 X 150 X 60mm
    FMWH03 154 x 150 x 60mm
    From £0.43£0.36
    £0.68 £0.57
  4. White Mailing Box For 178 X 144 X 56mm White White Corrugated Postal Box
    Brand OnlineNo Insert White Corrugated Postal Box
    FMWH08 178 x 144 x 56mm
    From £0.48£0.40
    £0.74 £0.62
  5. White Mailing Box For 320 X 238 X 68mm White White Corrugated Postal Box
    Brand OnlineNo Insert White Corrugated Postal Box
    FMWH07 310 x 237 x 62mm
    From £0.54£0.45
    £0.83 £0.69
  6. White Flat Packed Plain Mug Gift Box White Flat Packed Micro Corrugated Mug Gift Box
    Brand me White Flat Packed Micro Corrugated Mug Gift Box
    FCWHMU 112 x 112 x 112mm
    £1.14 £0.95
  7. Kraft Flat Packed Plain Mug Gift Box Kraft Flat Packed Micro Corrugated Mug Gift Box
    Brand me Kraft Flat Packed Micro Corrugated Mug Gift Box
    FCKRMU 112 x 112 x 112mm
    £1.14 £0.95
  8. Black Postal Mail Box Black 1-Piece Tabbed Corrugated Postal Box
    Brand Online Black 1-Piece Tabbed Corrugated Postal Box
    FMBL07 310 x 237 x 62mm
    From £1.55£1.29
    £1.86 £1.55
  9. Black Postal Mailer Box | Black Slim 1-Piece Flat Black Corrugated Postal Box
    Slim 1-Piece Flat Black Corrugated Postal Box
    FMBL09 322 x 180 x 20mm
    From £0.92£0.77
    £1.14 £0.95
  10. Black 1-Piece A6 Corrugated Postal Box Black 1-Piece A6 Corrugated Postal Box
    Brand Online Black 1-Piece A6 Corrugated Postal Box
    FMBLA6 178 x 131 x 55mm
    From £0.74£0.62
    £0.91 £0.76
  11. Black 1-Piece A4 Postal Box Black 1-Piece A4 Corrugated Postal Box
    Brand Online Black 1-Piece A4 Corrugated Postal Box
    FMBLA4 322 x 228 x 55mm
    From £1.76£1.47
    £2.03 £1.69
  12. Black 1-Piece A5 Corrugated Postal Box Black 1-Piece A5 Corrugated Postal Box
    Brand Online Black 1-Piece A5 Corrugated Postal Box
    FMBLA5 244 x 180 x 55mm
    From £1.16£0.97
    £1.33 £1.11
  13. Kraft Brown Postal Box For Mailing Large Magnetic Box
    Kraft Brown Postal Box For Mailing Large Magnetic Box
    FMKR40 420 x 315 x 116mm
    From £1.45£1.21
    £1.85 £1.54
  14. kraft corrugated cardboard wrap mailer with perforated tab opening and strong self adhesive seal 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 £0.43£0.36
    £0.71 £0.59
  15. kraft corrugated cardboard wrap mailer with perforated tab opening and strong self adhesive seal 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 £0.66£0.55
    £0.83 £0.69
  16. kraft corrugated cardboard wrap mailer with perforated tab opening and strong self adhesive seal 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 £0.80£0.67
    £0.96 £0.80
  17. Black One Piece Matchbox Postal Box |Closed Black 1-Piece Matchbox Corrugated Postal Box
    Black 1-Piece Matchbox Corrugated Postal Box
    FMBL11 139 x 139 x 20mm
    From £0.86£0.72
    £1.02 £0.85
  18. Kraft Earring Holder with earrings Earring Holder Kraft Mailer
    Brand me Earring Holder Kraft Mailer
    EMKR65 65 x 65 x 12mm
    £0.23 £0.19
  19. Earrings shown in white earring holder Earring Holder White Mailer
    Brand me Earring Holder White Mailer
    EMWH65 65 x 65 x 12mm
    £0.23 £0.19
  20. Bottle Packaging protective mailer Rollor™ Medium Kraft Protective Bottle Mailer
    Rollor™ Medium Kraft Protective Bottle Mailer
    BWRPKRME 433 x 147 x 135mm
    £5.54 £4.62
  21. Kraft Flower Letterbox Mailing Box Reversible Flower Letterbox Postal Mailing Box
    No Insert Reversible Flower Letterbox Postal Mailing Box
    FLKR33 590 x 175 x 34mm
    £1.01 £0.84
  22. Lilac Deep A6 Mailing Box Lilac Deep 1 Piece A6 Mailing Gift Box
    Brand meNo Insert Lilac Deep 1 Piece A6 Mailing Gift Box
    FMLIA6 178 x 131 x 55mm
    £1.19 £0.99
  23. Sage Green Deep 1 Piece A6 Mailing Box Sage Green Deep 1 Piece A6 Mailing Gift Box
    Brand meNo Insert Sage Green Deep 1 Piece A6 Mailing Gift Box
    FMSGA6 178 x 131 x 55mm
    £1.19 £0.99
  24. Radiant Red Deep 1 Piece A6 Mailing Box Radiant Red Deep 1 Piece A6 Mailing Gift Box
    Brand meNo Insert Radiant Red Deep 1 Piece A6 Mailing Gift Box
    FMRRA6 178 x 131 x 55mm
    £1.19 £0.99
  25. Lilac 1 Piece A6 Mailing Box Lilac 1 Piece A6 Mailing Gift Box
    Brand me Lilac 1 Piece A6 Mailing Gift Box
    FMA6LI22 178 x 131 x 22mm
    £0.76 £0.63
  26. Rose Quartz 1 Piece A6 Mailing Box Rose Quartz 1 Piece A6 Mailing Gift Box
    Brand meNo Insert Rose Quartz 1 Piece A6 Mailing Gift Box
    FMA6RQ22 178 x 131 x 22mm
    £0.76 £0.63
  27. Sage Green 1 Piece A6 Mailing Box Sage Green 1 Piece A6 Mailing Gift Box
    Brand meNo Insert Sage Green 1 Piece A6 Mailing Gift Box
    FMA6SG22 178 x 131 x 22mm
    £0.76 £0.63
  28. Radiant Red 1 Piece A6 Mailing Box Radiant Red 1 Piece A6 Mailing Gift Box
    Brand meNo Insert Radiant Red 1 Piece A6 Mailing Gift Box
    FMA6RR22 178 x 131 x 22mm
    £0.76 £0.63
  29. Apricot Crush Orange Mailing Box Apricot Crush Orange Deep 1 Piece A6 Mailing Gift Box
    Brand meNo Insert Apricot Crush Orange Deep 1 Piece A6 Mailing Gift Box
    FMACA6 178 x 131 x 55mm
    £1.19 £0.99
  30. Apricot Crush Orange Thin Mailing Box Apricot Crush Orange 1 Piece A6 Mailing Gift Box
    Brand me Apricot Crush Orange 1 Piece A6 Mailing Gift Box
    FMA6AC22 178 x 131 x 22mm
    £0.76 £0.63
  31. 1 Piece A6 Mailing Gift Box Kraft Kraft 1-Piece A6 Corrugated Postal Box
    Brand OnlineNo InsertBestseller Kraft 1-Piece A6 Corrugated Postal Box
    FMKRA6 178 x 131 x 55mm
    From £0.40£0.33
    £0.60 £0.50
  32. Mailing Box For Medium Snap Shut Box - 218 X 175 X 90mm Kraft
    Brand OnlineNo Insert Kraft Brown Postal Box For Mailing Medium Magnetic Box
    FMKR16 218 x 175 x 90mm
    From £0.71£0.59
    £0.83 £0.69
  33. Mailing Box For Deep Snap Shut Box - 300 x 235 x 122mm Kraft
    Brand OnlineNo Insert Kraft Brown Postal Box For Mailing Deep Magnetic Box
    FMKR22 300 x 235 x 122mm
    From £0.91£0.76
    £1.10 £0.92
  34. Mailing Box For Small Snap Shut Box - 158 X 135 X 75mm Kraft
    Brand OnlineNo Insert Kraft Brown Postal Box For Mailing Small Magnetic Box
    FMKR12 160 x 135 x 78mm