10ft containers: tight sites and small overflow storage
Holding roughly 560 cubic feet, a 10ft container is about equal to a one-car garage packed with boxes. It's ideal for storing tools and seasonal gear, or for backyard spots with tight access, since a smaller flatbed, or even a tilt trailer, can move it. The limited interior means you should steer clear of it for pallets, whole households, or anything that needs a forklift to load. It's also the simplest size to resell or move again down the road should your needs shift.
20ft containers: the all-purpose middle ground
Weighing in at roughly 1,170 cubic feet, the 20ft container tops the popularity charts for good reason: it slots into most residential driveways and lots, swallows the contents of a 2-3 bedroom home, and still lets a standard tri-axle delivery truck set it down without a lot of room to spare. Contractors like 20ft units as job-site lockboxes because two people can walk pallets or gear inside without a forklift. When you can't decide on a size, 20ft is the safest fallback.
40ft containers: bulk storage and conversions
A standard 40ft container gives you around 2,350 cubic feet, effectively doubling the 20ft's capacity while adding less than double the footprint, since the width and height stay the same. It's the size most buyers reach for when building out a workshop conversion, storing large equipment, or pulling together a multi-room household. Because delivery calls for a full-length tilt-bed truck plus roughly 60-70 feet of straight, unobstructed approach, verify your driveway and turning radius before you place the order.
High cube vs standard height
The interior height of standard containers is 8'6", whereas high cube containers tack on a full extra foot to reach 9'6", a difference that counts for a lot when you're installing shelving, routing HVAC ductwork, or turning the unit into livable or workshop space. High cube versions run modestly higher in price but pay off on any conversion. For plain pallet or box storage where vertical build-out isn't a priority, standard height is typically the more budget-friendly route.
Matching size to ground and access conditions
Ahead of settling on a size, walk the drop location and look out for overhead wires, low tree branches, and a stretch of at least 10-15 feet of clearance along the approach side so the delivery truck can tilt and slide the container off. A 40ft unit calls for a firm, level pad, compacted gravel or a concrete strip does the job, to keep the doors from falling out of alignment over time; 10ft and 20ft units handle minor grade changes better but should still rest on blocks or a paved surface rather than bare soil.
Frequently asked questions
How much can a 20ft container actually hold?
Roughly 1,170 cubic feet of interior room, which comes out to about what a fully loaded 2-3 bedroom home holds once you count furniture and boxes, or somewhere in the neighborhood of 8-10 standard pallets of freight.
Will a 40ft container fit in a standard driveway?
In many cases yes, provided the driveway runs straight and measures 8 feet wide or more. Keep in mind, though, that the truck delivering it needs somewhere around 60-70 feet of unobstructed straight-line approach to tilt the bed and slide the unit down, so take a tape measure to both your street and your driveway before committing.
Is a high cube container worth the extra cost?
If your plan is to turn the container into a workshop, office, or livable room, the answer is yes, because you'll want that additional foot of overhead room for insulation, ductwork, or shelving. When the unit is only going to hold storage, the extra height is a nice-to-have rather than a requirement.
Can I stack two containers on top of each other?
By design, standard shipping containers can be stacked once their corners line up on a level, well-compacted base, but doing so calls for units in container-grade shape (meaning no serious rust or damage at the corner posts) and frequently a local permit as well. Verify your area's codes before you stack anything.