Shipping container size guide
The right size depends on how much you need to store and whether the delivery equipment can safely reach the placement area. Compare the practical differences before requesting a quote.
The quick answer
A 20 ft container is usually the better fit for tighter properties and moderate storage needs. A 40 ft container provides roughly twice the floor length and often the best value per square foot, but it requires twice as much straight unloading space.
Side-by-side comparison
These are typical measurements for Standard-height shipping containers. Exact dimensions and weights may vary slightly by manufacturer and unit.
| Comparison | 20 ft container | 40 ft container |
|---|---|---|
| Exterior size | 20′ L × 8′ W × 8′ 6″ H | 40′ L × 8′ W × 8′ 6″ H |
| Typical interior size | 19′ 4″ L × 7′ 8″ W × 7′ 10″ H | 39′ 5″ L × 7′ 8″ W × 7′ 10″ H |
| Approximate empty weight | 4,800–5,200 lbs | 8,000–8,600 lbs |
| Minimum straight delivery clearance | 60 ft | 120 ft |
| Often best for | Tighter sites and moderate storage needs | Large-volume storage and maximum value per square foot |
Both sizes also require: a 12 ft clear travel path, a 14 ft entrance or gate, 14 ft of travel height, and up to 18 ft of unloading height. The route and placement area must be firm, reasonably level, and clear of obstacles.
Standard or High Cube
Standard containers are typically 8′ 6″ tall. High Cube containers are typically 9′ 6″ tall, adding one foot of interior height for shelving, tall equipment, and bulky items.
A 20 ft High Cube is offered in One-Trip condition and availability is more limited. A 40 ft High Cube is a common maximum-capacity option with Used and One-Trip choices available, subject to current inventory.
Common questions
A 40 ft container has approximately twice the interior floor length of a 20 ft container while keeping the same standard width. The exact usable capacity varies slightly by manufacturer and whether you choose Standard or High Cube.
No. A 20 ft container needs at least 60 ft of straight clearance for delivery, while a 40 ft container needs at least 120 ft. The full route must also meet the width, height, ground, and turning requirements.
Usually. Its shorter length and smaller delivery footprint make it more practical for residential properties, compact commercial sites, and locations with limited straight clearance.
A 40 ft container commonly provides a lower cost per square foot of storage. A 20 ft container can still be the better value when it supplies enough room and avoids access or placement problems.
Standard 20 ft and 40 ft containers are commonly available in Wind & Watertight, Cargo Worthy, and One-Trip condition. High Cube and specialty-door configurations have different condition choices, and all inventory must be confirmed for your ZIP code.
