Letterheads and Compliment Slips: Sizes, Paper and Word Setup

A UK letterhead is A4 (210×297mm) on 100–120gsm uncoated stock — uncoated because it must run through your office laser or inkjet without smudging. The compliment slip is its 99×210mm sibling (one-third of A4, fits a DL envelope). Design both together so they match, and remember limited companies have required details to include.

The spec

Item	Size	Stock	Notes
Letterhead	A4	100–120gsm uncoated	Must be printer-compatible
Compliment slip	99×210mm	100–120gsm	Room to handwrite a note
Continuation sheet	A4	Match letterhead	Logo only or blank

What must a company letterhead include?

For UK limited companies: registered company name, registered office address, company number, and place of registration. (Sole traders: your name and business address.) Verify current requirements for your structure — but design the footer zone to hold it all legibly from the start.

Setting up the Word template

We supply the printed sheets; you print letters onto them. Set your Word template with the top margin cleared for the printed header (typically 40–50mm) and bottom margin above the footer block. Test-print one sheet before a mail run — every office printer grips paper slightly differently.

Do printed letterheads still matter?

Less volume, more signal: contracts, quotes for serious work, and anything legal reads differently on real letterhead than on a PDF's fake one. Most businesses now order smaller quantities than a decade ago — which short-run digital pricing suits perfectly. Document printing prices here.

FAQ

Can you print my letterhead design from Word? Yes, though a PDF export is safer — file checklist. Matching business cards? Same brand kit, one order — card prices. Minimum quantity? Short runs welcome; 250 sheets suits most small firms for a year.