Large Letter

Large Letter PiP Postal Boxes

These narrow, single-wall white large letter boxes are the perfect size to comply with the Royal Mail’s large letter size specifications. In order to stay within the guidelines set out by Royal Mail, these large letter posting boxes all have a height, or thickness, of no larger than 25mm.

Be sure not to overfill this large letter box packaging, as they may not stay within these strict specifications when overfilled. Cardboard large letter postal boxes also have a maximum weight capacity of 750g, with the length and width of the item not being able to exceed 353mm and 250mm respectively.

- White and brown large letter boxes are the perfect size for Royal Mail’s large letter specification

- Fits through a letter box without becoming damaged or creasing for convenience

- Made from a highly durable and sturdy cardboard material which is also significantly more eco-friendly than bubble mailers

- These letter postal boxes are 100% recyclable and biodegradable

It is essential that you remember not to overstuff large letter postage boxes as the cardboard will bend around the object - preventing the package from being classed as a large letter by the Royal Mail; meaning you’re likely to incur higher postal prices.

In order to prevent incurring higher prices in the postal system, make sure that the box lid lays flat on the item within.

£1.64 - £5.81

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Why Use Royal Mail Large Letter Boxes?

There’s a wide range of additional benefits to using Royal Mail large letter boxes. Primarily, you can accurately calculate your postage costs when consistently using this style of packaging as you’ll establish regularity in terms of costs when compared to the differing widths and weights that come into play when using an alternative postage method.

Next, these corrugated cardboard boxes also have the advantage of being significantly more durable and rigid compared to mailing bags - helping to provide a greater degree of damage resistance to its contents. If you’re packing items smaller than the Royal Mail large letter box, simply fill the void with cushioning in order to prevent the item from moving within the box and safeguard against potential damage.

There are five available sizes, with their Internal dimensions being:

C7 (A7): Die-cut 101 x 101 x 20mm large letter
C6 (A6): Die-cut 160 x 110 x 20mm large letter
C5 (A5): Die-cut 222 x 160 x 20mm large letter
C4 (A4): Die-cut 322 x 229 x 20mm large letter
DL: Die-cut 216 x 110 x 20mm large letter

					Price Per Unit Pack					14
Code	Ref	Internal Dimensions mm (LxWxH)	Board Grade	Pack Quantity	1-4 Packs	5-9 Packs	10-14 Packs	15-39 Packs	40+ Packs	Qty
9086_25	C7	101 x 101 x 20	Single Wall Brown	25	£0.106	£0.083	£0.078	£0.067	£0.066
9051_25	C6	160 x 110 x 20	Single Wall Brown	25	£0.120	£0.104	£0.100	£0.096	£0.090
9052_25	C5	222 x 160 x 20	Single Wall Brown	25	£0.162	£0.142	£0.150	£0.139	£0.123
9053_25	C4	322 x 229 x 20	Single Wall Brown	25	£0.207	£0.202	£0.197	£0.196	£0.196
9087_25	DL	216 x 110 x 20	Single Wall Brown	25	£0.138	£0.107	£0.103	£0.098	£0.096
9088_25	C7	101 x 101 x 20	Single Wall White	25	£0.116	£0.091	£0.086	£0.078	£0.073
9054_25	C6	160 x 110 x 20	Single Wall White	25	£0.144	£0.124	£0.121	£0.114	£0.095
9055_25	C5	222 x 160 x 20	Single Wall White	25	£0.144	£0.141	£0.136	£0.128	£0.123
9056_25	C4	322 x 229 x 20	Single Wall White	25	£0.233	£0.218	£0.211	£0.200	£0.195
9089_25	DL	216 x 110 x 20	Single Wall White	25	£0.144	£0.123	£0.120	£0.104	£0.102