Choosing the wrong storage container size can lead to wasted money, extra rentals, or rushed last-minute adjustments. With portable containers costing $150 to $350 per month, getting it right the first time can save you hundreds while keeping your belongings safe and accessible.

​To help you make the right choice, this straightforward guide explains key container sizes, what fits inside each, and how to choose the best match for your needs.

What Are the Most Common Portable Storage Container Sizes?

Standard containers come in three main sizes, each designed for different volumes. Most companies only deliver 10 ft and 20 ft containers, with mini options available as budget-friendly or space-saving alternatives. Mini Warehousing offers sizes ranging from 6 ft to 40 ft:

• ​Small (6 ft or 8 ft): About 200 to 400 cubic feet.
• Medium (10 ft): Around 600 cubic feet.
• Large (20 ft): Up to 1,200 cubic feet.
• X-Large (40 ft or 45 ft): Ranging from 2,000 to 3,000 cubic feet.

How Many Items Fit in Each Size?

Visualizing what fits can help avoid surprises. Here’s how much stuff each size can contain;​

1. Small containers:
   1. Small office cleanup or garage declutter
   2. 50 to 75 medium boxes plus small furniture (sofa, mattress, dresser)
2. Medium containers (most popular):
   1. Kitchen or basement renovation debris
   2. 150 to 200 boxes, plus major appliances (refrigerator, washer/dryer)
3. Large/X-Large containers:
   1. Major construction or renovation projects
   2. Entire household moves, lawn equipment, and multiple large appliances

When Should You Size Up or Down?

It’s better to slightly overestimate space, as having some empty space is cheaper than needing a second container. Here are some quick rules used by rental experts:​

• Size up if: you have bulky items (like pianos or gym equipment), are storing for the long term (so you have easier access with room to walk), or are combining a move with a renovation.
• Size down if: You have limited driveway space, are on a tight budget, or are only storing seasonal items or furniture from one room.
• Consider two smaller containers if you need separate access (for example, if you want holiday décor in one and renovation materials in another) or if parking restrictions prevent a 20-ft delivery.
• Pro tip: Pack vertically by stacking boxes up to ceiling height (7 to 8 ft interior) to maximize space.

Shop Storage Containers at Mini Warehousing, Inc.

The right container turns storage stress into simple logistics. What project are you tackling: decluttering, moving, or renovating? Let Mini Warehousing help you achieve your goals.

We provide 6-ft, 8-ft, 10-ft, and 20-ft containers with clear sizing guides, free on-site consultations, and flexible month-to-month rentals. We’ll help measure your space and inventory to recommend the ideal fit. No upsells, no surprises. Get the right size delivered quickly. Request your quote today.