What Size Is a DL Envelope?
DL envelope dimensions, what paper it holds, and postage rates.
Exact dimensions
Quick answer
110mm x 220mm. The standard size for tri-folded A4 letters. DL is the standard for formal letters, bills, and bank statements. A DL envelope fits within Royal Mail standard letter dimensions when under 5mm thick.
Common uses
DL is the standard for formal letters, bills, and bank statements. This is one of the most commonly used sizes in the UK for both personal and business purposes. Understanding the exact dimensions helps you choose the right packaging, frame, or postage rate.
Need to know about postage? Check stamp prices or large letter stamp costs.
Postage information
A DL envelope fits within Royal Mail standard letter dimensions when under 5mm thick. Always check the thickness and weight of your item as well as the dimensions. Items that exceed standard letter limits (240mm x 165mm x 5mm, 100g) need large letter postage. Items exceeding large letter limits (353mm x 250mm x 25mm, 750g) go as small parcels.
Envelopes and mailers in every size
C5, C6, DL, and custom sizes available. Quality envelopes for personal and business post.
Browse envelopesFrequently asked questions
110mm x 220mm. The standard size for tri-folded A4 letters.
A DL envelope fits within Royal Mail standard letter dimensions when under 5mm thick. Check Royal Mail size and weight limits for the correct rate.
Post Offices, stationery shops, supermarkets, and online retailers like ProcuraPack stock common envelope and stationery sizes.
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