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Knowledge Centre
Guides to Specifying Metal Sign Letters
Material guides, design guides and buying guides written from what we build — grades, thicknesses, finishes, lighting and installation, without the marketing.
How to Start a Metal Sign Business
Market research, registration, workshop layout, equipment and the skills a metal sign shop actually needs.
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Stainless Steel 304 vs 316 for Sign Letters
Which grade to specify, and the one question about the site that settles it.
Read the guide →Brushed vs Mirror Polished Stainless Steel Letters
How each finish behaves under daylight, spotlights and dirt — and where each one fails.
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Halo-Lit vs Front-Lit Channel Letters
Two ways to light a letter, two very different results at fifty metres.
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Installing Relief Sign Letters With a 1:1 Template
The set-out method that lets a general fitter hang a letter set in one visit.
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Choosing Letter Thickness and Height
Where 6 mm is enough, when to go thicker, and how letter height drives every other decision.
Read the guide →How to Order Custom Sign Letters From China
Artwork, approval drawing, lead time, shipping and payment — the whole sequence in order.
Read the guide →Answers
Quick Answers
What is the smallest letter you can make?
Letter height starts at 40 mm. Below that the return depth and the fixing studs stop being practical.
Are the LED components certified?
The LED modules and power supplies we use in illuminated letters are CE, RoHS and UL approved.
What stainless grade do you use?
Stainless steel 304 or 316, chosen on request. 304 suits ordinary inland exposure; 316 is the better choice near the coast or anywhere with a high salt or chemical load.
Do you work from our own artwork?
Yes — that is the normal way we work. Send vector artwork and we cut from it. If all you have is a sketch or a photograph, we will redraw it and send the drawing back for approval first.
Still Not Sure What to Specify
Send the artwork and the site address. We will tell you what we would build and why before you commit to anything.