Modulars.org is an independent guide to commercial modular buildings. We publish what these buildings actually cost, what sizes and specifications are standard, what the code requirements are, and how long delivery really takes. Then we connect buyers with suppliers who serve their area.
We do not manufacture, sell, or deliver buildings. What we do is the research most buyers do not have time to do, and the supplier comparison most buyers do not know how to run.
Why We Built This
Commercial modular is a category where almost nobody publishes a price.
Go looking for what a modular medical clinic or a portable classroom costs and you will find dozens of manufacturer pages, every one of them ending in a quote form. The few sites that do publish numbers usually give a single range with no indication of whether it covers the building alone or the building delivered, installed and connected to utilities. Those are two very different numbers, often differing by half, and the gap is why so many buyers are shocked by their first real quote.
Meanwhile the cost claims that do circulate are frequently inflated, repeated from one page to the next without a source behind them.
We built Modulars.org to be the site that answers the question directly: here is what it costs, here is what that figure includes, here is what it excludes, and here is where the number came from.
How We Research What We Publish
Every cost figure on this site comes from one of four places, and we name which one:
- Published manufacturer and supplier pricing, where a company actually publishes it rather than gating it behind a form.
- Public procurement records — awarded municipal contracts, school district bid tabulations, cooperative purchasing price lists. These are real prices that real buyers paid, and they are the most reliable data in this industry.
- Industry cost data from construction cost publishers and trade associations.
- Code and regulatory sources — the International Plumbing Code, ADA Standards, FGI Guidelines, state licensing regulations and state modular building programs, read directly rather than paraphrased from somebody else’s summary.
When sources disagree, we say so rather than splitting the difference and presenting the average as fact. When we cannot find a reliable figure, we say that too. There is more of that in this category than you might expect, and we would rather tell you a number does not exist publicly than invent one.
We update pricing as the market moves. Construction costs have not been stable, and a cost guide that has not been touched since 2022 is worse than no guide at all.
What We Do Not Do
Worth being explicit, because plenty of sites in this space blur the line:
- We do not manufacture or sell buildings. We have no factory, no yard, and no inventory.
- We do not deliver or install anything.
- We are not a broker and we do not negotiate on your behalf. You deal directly with the supplier.
- We do not publish paid placements dressed up as recommendations. Nobody buys a better position in our guides.
- We do not review companies we have no basis to review. Where we cover a manufacturer, we cover what they build, where they operate and what they publish, not a star rating we invented.
How We Make Money
We earn a referral fee when a reader requests supplier quotes through the forms on this site.
That is the whole model, and a few things follow from it that are worth knowing:
- It costs you nothing. Your price from the supplier is the same whether you come through us or contact them directly.
- We are paid on the introduction, not the sale. We have no financial reason to push you toward a more expensive building than you need, and no incentive tied to which supplier you choose.
- Requesting quotes puts you under no obligation. Compare them and walk away if none of them work.
We think comparing several suppliers is genuinely the right move in this category regardless of whether you use our form, because pricing is not published anywhere and the spread between quotes on identical scope is routinely 30% or more. If you would rather contact suppliers directly using what you learned here, that is a fine outcome.
Our full affiliate disclosure has the formal version.
Who Runs Modulars.org
Ian Hart, Founder
I came to modular buildings sideways. My family ran a metal scrap recycling business in Kentucky for decades, and that is where I first got around structural steel, what it costs, where it comes from and what happens to a building at the end of its life. Metal prefab construction was a short step from there, and modular buildings a short step from that.
It is not the standard route into this industry, and I think it is a useful one. Coming at these buildings from the material side rather than the sales side is a large part of why this site is built around specifications and real numbers instead of marketing copy.
I have spent the years since building and running research sites in the prefab and modular category, including Barndominium.org on the residential side. Modulars.org is the commercial counterpart, covering the buildings that businesses, schools, clinics, contractors and municipalities buy: modular classrooms, medical and healthcare facilities, daycare centers, mobile office trailers, prefab restroom buildings and commercial modular construction generally.
Modulars.org is published by Ian Hart Design LLC, based in North Carolina near Research Triangle Park in Raleigh. We work with suppliers across the lower 48.
Get In Touch
If you spot a figure on this site that looks wrong, tell us. Cost data in this industry moves and no source is perfect, and corrections from people who have actually bought these buildings are the most useful feedback we get.
If you are a manufacturer or supplier and we have something wrong about your company or your products, tell us that too and we will fix it.
Contact: info@modulars.org
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