What 39 Signature Templates Reveal About Professional Design
We treated our own template library as a dataset — 39 production templates, 11 layout archetypes, 7 content fields — and mined it for the patterns that separate a professional signature from an amateur one.
By Engineering Team, Engineers, Gas Alley Studios · Updated 2026-10-12 · 8 min
An original analysis of 39 email signature templates: how often each contact field appears, which layouts dominate, how colour and typography are actually used, and what the averages tell you about building your own signature.
The dataset
This article is built from something most design commentary never has access to: a complete, machine-readable template library. SignatureCraft currently ships 39 production templates, each defined as structured data — category, layout archetype, enabled contact fields, font stack, font size, primary and secondary colours, divider style, border treatment, padding and line-height. Every number below is computed directly from that dataset, not estimated or recalled from memory.
The templates fall into six categories: corporate (9 templates), creative (8), modern (7), minimal (7), professional (5) and reply-only (3). Those categories sit on top of 11 distinct layout archetypes — from the accent-bar layout (7 templates, the single most common pattern) through classic-stacked (5), photo-divider (5), centered-personal (4) and card-shadow (4), down to single-instance layouts like banner-bottom.
Layout: horizontal wins, but not by the margin you might expect
23 of the 39 templates (59%) use a horizontal layout — logo or photo on one side, contact details on the other. Vertical (stacked) layouts account for 11 templates (28%), and compact single-block layouts for the remaining 5 (13%). Horizontal dominance is unsurprising: it mirrors the business-card metaphor people already understand, and it makes efficient use of the wide whitespace that sits under every email body.
What is more interesting is that vertical and compact layouts together still make up more than 4 in 10 templates. Vertical layouts dominate the categories where the sender's identity is the product — creative and personal-brand designs — because a stacked name, title and company reads like a letterhead. The lesson is not that one layout is 'correct'; it is that the layout should follow the communication's intent. Corporate sender? Horizontal. Creative professional? Vertical reads as deliberate, not outdated.
Content: every signature has a name — nothing else is universal
The section data is the most actionable part of the dataset. The name field appears in all 39 templates (100%), email in 38 (97%), and job title in 37 (95%). Those three fields are effectively non-negotiable. Company appears in 24 templates (62%), phone in 23 (59%), and website in 18 (46%). A physical address appears in just 7 (18%).
The average template enables 4.8 fields, with a range from 3 to 7. That range matters: the most stripped-down template carries three lines and nothing else, and it does not look sparse — it looks confident. At the other end, seven fields is the ceiling before the signature starts to compete with the email itself. If your signature currently lists nine or ten items, the dataset suggests you are well outside the professional norm, and cutting back to five or six will read as a design improvement, not a loss of information.
The address figure deserves a note. At 18% inclusion, a street address is clearly not expected for most senders — but for regulated industries (law, finance, real estate) it is frequently a legal requirement rather than a design choice. The dataset reflects that split: address-heavy templates cluster in the corporate category, where compliance drives the decision.
Typography: web-safe stacks, and a strong bias toward medium
Across the 39 templates there are 12 distinct font stacks, and every single one is a web-safe family — Arial (8 templates, 21%), Georgia (7, 18%), Times New Roman (6, 15%), Verdana (4), Trebuchet MS (4), Tahoma (2), Courier New (2), Inter (2), and one instance each of Lucida Console, Helvetica Neue and Playfair Display. This is not aesthetic conservatism; it is deliverability engineering. Email clients strip imported web fonts inconsistently — Outlook famously ignores them entirely — so a font stack that only renders on 60% of recipients' machines makes the signature look broken on the other 40%.
The serif/sans split is close to even (serif families account for roughly 41% of templates), which contradicts the common assumption that business signatures must be sans-serif. Georgia's strong showing (18% as the sole primary stack, more as a secondary) suggests serif typography reads as 'editorial' and 'established' rather than dated when paired with the right colour and spacing.
Font sizing is overwhelmingly moderate: 30 of 39 templates (77%) use the medium size, 6 (15%) small, and only 3 (8%) large. Nobody builds a signature that shouts. If yours uses oversized name text, the dataset says you are in a 8% minority — and almost always for the wrong reason.
Colour: blue and near-black carry the category, accents do the personality
Bucketing every template's primary colour by hue: blue leads with 12 templates (31%), near-black follows with 7 (18%), then green (5), red (4), purple (3), orange/gold (3), teal/cyan (2), pink/magenta (2) and neutral gray (1). Blue plus near-black — the two hues that read as 'institutional trust' — cover almost half the library, which is precisely what you would expect for a medium where the sender is asking to be believed.
Secondary colours tell the personality story. Neutral grays are the most common secondary (10 templates), but accent hues — gold, violet, cyan, emerald, amber — appear across the creative and modern categories, typically as the divider colour or the small caption text under the name. The pattern across the dataset: primary colour signals seriousness, one accent hue signals character. Templates that use two strong competing hues are rare — the library has effectively zero examples of a signature built on two saturated primary colours.
Structure: dividers, borders and the spacing envelope
Divider styles split into gradient (16 templates, 41%), plain line (8), no divider at all (8), double line (5), and one each of dashed and dotted. The gradient divider — a colour accent that fades out — is the library's single most common structural flourish, and its popularity is easy to explain: it draws the eye to the transition between identity and contact details without adding visual weight the way a full-width rule does.
Borders are enabled on 30 of 39 templates (77%), almost always as a left-edge accent bar, with an average width of 3.5px. The 23% that go border-free cluster in the minimal and reply categories. Padding averages 20.3px (range 10–28px) and line-height averages 1.51 (range 1.25–1.7). Those two numbers are the quiet difference between signatures that look composed and signatures that look cramped: roughly 20px of breathing room around the block, and line-height midway between tight and airy.
None of these numbers are rules. But they are a base rate — what a large, deliberately-designed library actually converges on. If your signature deviates from all of them at once (ten fields, a huge name, a web font, two saturated colours, zero padding), that is not a personal style; it is an accumulation of small choices nobody reviewed.
How to use this data
Three practical takeaways. First, if you are starting from zero, the modal signature in this dataset is: horizontal layout, 4–5 contact fields (name, title, email, phone, company), a web-safe font at medium size, a blue or near-black primary with one accent hue, a gradient divider, and a left accent bar around 3–4px wide with ~20px padding. That description matches a dozen templates in the library, and it matches what looks professional in practice.
Second, use the outliers deliberately, not accidentally. Vertical layouts, serif stacks, larger type and address blocks all appear in the dataset — but attached to specific categories and specific intents. Deviate from the base rate on one axis because your role or industry calls for it, not because a setting happened to be on.
Third, grade yourself before you ship. We built a free interactive tool — the Signature Grader — that scores your current signature against these same principles: field selection, contactability, typography, colour discipline and structure. It takes about a minute, runs entirely in your browser, and every recommendation links straight into the editor so you can fix what it flags. The dataset above is the 'why'; the grader is the 'what about mine'.
Put these tips into practice
Gas Alley Studios engineers build the SignatureCraft editor and export pipeline, and spend an unreasonable amount of time inside Outlook 2016 debugging table layouts.