Moving Box Sizes Guide

The size on the label matters less than what you put inside it. A better rule of thumb is to match the box to the weight of the item, not just how much room it takes up.

Dense, heavy items — go small, even when there’s room left over. Books, tools, small appliances, and canned goods add up fast. A large box completely filled with books is often too heavy to carry safely, even though it looked like it had plenty of space left when you started packing. Small boxes keep the weight manageable and make it obvious when a box is “full” by weight, not just by volume.

Lightweight, bulky items — go large. Bedding, pillows, stuffed animals, and lampshades take up a lot of room without adding much weight, so a large box stays easy to carry even when packed to the top. Using small boxes for these just means packing — and carrying — more boxes than you need.

Fragile items — use dish or specialty boxes when you can get them. Dish packs and cell boxes, the ones with built-in cardboard dividers, are built to keep glassware and stemware from knocking against each other in transit. No specialty boxes on hand? Wrap each fragile item individually and pack it snugly into a small or medium box with padding on every side — never a large one, where fragile items have more room to shift around.

Medium boxes are your all-purpose option — most kitchen items, toys, decor, and general household goods land here, which is why they make up the largest share of most moves.

If you’re buying rather than sourcing boxes for free, small and medium should make up most of your order — they’re the most versatile sizes and the easiest to carry fully packed. Large boxes are useful for the lightweight items above, but you’ll need far fewer of them than you might expect. Over-buying large boxes is one of the most common packing supply mistakes, since half-empty ones just waste space in the moving truck.

Wardrobe boxes are worth the extra cost only if you actually have a closet’s worth of hanging clothes you want to keep on hangers — suits, dresses, coats. If most of your clothing is folded or already lives in drawers, skip them and put that money toward more small and medium boxes instead.