A custom WordPress build takes 4 to 8 weeks for a standard business website, 8 to 12 weeks for a larger site with custom functionality, and 3 to 6 months for e-commerce platforms or marketplace-style projects.
That clock covers discovery, design, development, content entry, and testing. A template-based site can launch in 1 to 2 weeks, but fully custom work (unique design, custom post types, integrations) rarely goes live in under a month.
The single biggest variable isn’t the developer. It’s how fast the client delivers content and feedback.
Where the weeks actually go
A typical 8-week custom project breaks down like this: discovery and planning take the first week or two, design in Figma runs weeks two through four, development weeks four through seven, and the final stretch goes to content, QA, and launch prep. Those phases overlap on a well-run project, which is how good teams compress timelines without cutting scope.
Development itself is usually the most predictable part. A developer converting an approved design into a custom theme knows roughly what they’re facing. Design approval is where projects stall, because “I’ll know it when I see it” can eat three revision rounds and two weeks.
If you’re comparing timelines against budgets, the two move together. We’ve broken down the money side separately in how much a professional WordPress site costs, and the short version is that longer timelines almost always mean custom functionality, which is also what drives price.
Timelines by project type
A five-to-ten page brochure site with custom design: 4 to 6 weeks. A 20+ page corporate site with a blog, team system, and case studies: 8 to 12 weeks. A WooCommerce store with custom checkout logic or ERP syncing: 12 to 20 weeks. And a two-sided platform, say a booking marketplace or auction site, can run 4 to 6 months even with an experienced team, since you’re really building an application on top of WordPress. The full scope of that kind of work is covered in our guide to custom WordPress development.
One honest caveat: agency timelines assume your project has a slot. Good shops book 2 to 6 weeks out, so add that lead time to everything above.
What makes builds run late
Content. Almost always content. The site sits 90% finished while the About page copy lives in someone’s drafts folder for a month. If you do one thing to protect your timeline, have copy and images ready before development starts, or pay someone to write them as part of the project.
Other repeat offenders: adding features mid-build (“can we also have a members area?”), slow feedback loops where every revision waits a week for a stakeholder meeting, and third-party dependencies like API access the client’s IT team takes forever to grant.
The developer matters too, obviously. A solo freelancer juggling four projects moves differently than a dedicated team, which is worth weighing when you hire WordPress developers for anything with a hard deadline.
Launch isn’t the finish line
Plan for a 1-to-2 week stabilization period after go-live. Real traffic surfaces things staging never does: a form notification landing in spam, a caching conflict, a layout bug on some Android browser nobody tested. This is also when ongoing WordPress maintenance should start, not six months later when the first plugin update breaks something.
So when someone quotes you “two weeks” for a custom build, ask what they mean by custom. Two weeks buys a configured template with your logo on it. That’s sometimes exactly what a business needs. But it isn’t a custom build, and pretending otherwise is how projects end up rebuilt a year later.
