Does Your Company Need a Design System?
By CodexierPublished 5 min read
A design system is a shared library of components, rules and tokens that every product and page in a company is built from. Large companies need one. Most small ones are sold one before they need it, and end up with a beautiful Figma file nobody maintains. This guide gives you the signs that a system will pay for itself, the lighter alternatives, and an honest rule for when to wait.
The short answer
We sell design systems and UI kits, and we turn down a fair share of enquiries for them, because the lighter option is usually right for a company under a certain size.
Signs you need one
The signs are about coordination cost, not about ambition. A design system pays when the same decision is currently being made by several people, several times, with different outcomes.
- Two or more products, or a product and a website, that customers see side by side and that look like different companies.
- Several developers or an external agency building screens, each with their own button.
- A rebrand or accessibility fix that would have to be applied in dozens of places by hand.
- Designers spending their time redrawing basic components instead of solving user problems.
- Onboarding a new developer takes weeks because there is no reference for how things should look and behave.
If three or more of these are true, the system will save more time than it costs. If none is true, it will not, however good it looks in the proposal.
What a design system contains
| Layer | What it is | Who uses it |
|---|---|---|
| Foundations and tokens | Colour, type, spacing, radius, shadow, defined once and named by purpose | Designers and developers |
| Components | Buttons, inputs, cards, tables, navigation, with all states and variants | Designers in Figma, developers in code |
| Patterns | How components combine: forms, empty states, error handling, page layouts | Everyone building a screen |
| Guidelines | Tone of voice, accessibility rules, do and do not examples | Writers, designers, developers |
| Code package | The components as an installable library, versioned and documented | Developers only |
The last row is what separates a design system from a Figma library. Without the code package, developers still rebuild everything by hand.
Lighter options: style guides and UI kits
Brand style guide
A few pages: logo use, colours, type, imagery, tone. Enough for a marketing site and printed material. Right for companies without a software product.
UI kit
A Figma component library with tokens and states for one product, plus matching code components in that product's repository. Right for a single product team.
Adopted open-source system
Take an established component library, apply your tokens, document the exceptions. Right for internal tools and early SaaS products that need consistency more than distinctiveness.
Full design system
Everything above as a separately maintained, versioned asset shared across products and teams. Right when the signs in the previous section apply.
Most of what makes a system valuable, tokens and consistent components, you get from a UI kit at a fraction of the cost. How that kit is handed to developers is covered in our guide to Figma handover.
Who maintains it
A design system is never finished. New components are needed, old ones need accessibility fixes, the brand evolves, the framework it is built on releases a breaking version. Somebody has to own that, review contributions, and publish versions. In a large company that is a team. In a small one it is a named person with a few hours a month and the authority to say no to one-off variants. If you cannot name that person, you are not ready for a system; buy a UI kit and revisit in a year.
Maintenance can be bought as a retainer, but the decisions cannot be outsourced. The supplier can build the component; only you can decide that the company has exactly one kind of primary button.
When it is premature
Do not buy a design system, from us or anyone, if you are still finding out what your product is. Early products change their screens every month, and a system built around today's screens will document decisions you will reverse. Do not buy one to fix a bad product design; a system makes a design consistent, not good. And do not buy one because a larger competitor has one; their coordination cost is not yours.
Decision rule: one product and one team, get a UI kit. Several products or several builders that are drifting apart, and a person who will own it, get a system. If you are not sure which side you are on, book a call and describe what you build and who builds it; the fixed prices for both options are on our pricing page.
Frequently asked questions
How long does it take to build a design system?
A UI kit for one product takes weeks; a full system with a code package and documentation takes months and then continues indefinitely. The first version should cover the components the products actually use, not every component imaginable.
Can we build a design system on top of an existing library like Material or Radix?
Yes, and for most small companies that is the sensible path. You keep the library's accessibility work and structure, apply your tokens, and document only what differs. Distinctiveness comes from layout, content and imagery more than from a bespoke button.
Does a design system help with accessibility?
It is the most effective place to do the work. Contrast, focus states, keyboard handling and labels fixed once in a component are fixed everywhere it is used. Without a system, each fix is repeated per screen and drifts over time.
What does a design system cost to run?
The main cost is the maintainer's time, typically a few hours a month for a small system, plus occasional work when the underlying framework changes. We cover the numbers and what drives them in a separate guide on design system cost.
Not sure whether a kit or a system is right for you?
Tell us what products you have, who builds them and where they are drifting apart. In fifteen minutes we say whether you need a style guide, a UI kit or a full system, and what each would cost.
Book a free 15-minute call