Short answer: A 40ft container offers roughly double the storage of a 20ft for only 25–50% more in price, making it the better per-square-foot value — but only if your site has room for the longer footprint and delivery access.
A standard 20ft container covers roughly 160 square feet of floor space. It's the easier size to place on tight lots, narrow driveways, or urban sites, and it's simpler to reposition later if you need to move it with standard equipment. For buyers with limited or uncertain site access, 20ft removes a major point of risk from the purchase.
A 40ft container roughly doubles the floor space of a 20ft unit, but the price premium is typically only 25–50% — meaning you're paying less per square foot the larger you go. If your project needs real volume — full inventory storage, larger equipment, multi-use space — the 40ft is almost always the better financial choice, provided the site can accommodate delivery.
A 40ft container needs a longer, straighter delivery path and more room to maneuver the truck than a 20ft does. Before deciding on size, walk your delivery route and confirm there's a clear path at least the length of the container plus turning room — this matters more than the price difference for most buyers.
Choose 20ft if site access is limited or your storage needs are modest. Choose 40ft if you need volume and your site can accommodate the longer footprint. See our delivery cost guide for what to expect either way.
Read More Guides & FAQ
ContainersDirectSale