After selling both new and used modular buildings for 25 years, you become quite knowledgeable about the market. Here's what I've learned about the most popular sizes for modular buildings in the United States, sorted by type.




If you're thinking about getting a modular building, it's best to stick with these size ranges. Most suppliers have these available and are more willing to negotiate rental and purchase prices for them compared to custom sizes that are less common. Choosing these standard sizes not only gives you more options but also better chances of getting a good deal.

For Schools and Churches:
1. 24' x 40' Single classroom
2. 24' x 60' Single and two classroom models

For Office Space:
1. 24' x 60' with offices and bathrooms
2. 36' x 60' with offices and bathrooms
3. 48' x 60' with offices, conference room, and bathrooms

Next step - start requesting some prices from local suppliers and see which one has the best overall price to offer you.



This blog post was approved by iModular.com, a GBM Marketing, Inc. web property.