A 10x10 storage unit holds more than most people expect, but knowing exactly when you've outgrown it and need a 10x20 instead comes down to real cubic footage, not a guess. Saddle Peak Storage maintains an actual sizing calculator for exactly this reason, and working through the math helps you avoid paying for space you don't need or running out of room halfway through move-in.
What a 10x10 Actually Genuinely Fits
A 10x10 unit offers 100 square feet of floor space, roughly comparable to a standard bedroom or a small one-bedroom apartment's worth of belongings. Using Saddle Peak's own published item sizing, a king-size bed runs about 70 cubic feet, a dresser or chest of drawers around 30 cubic feet, and smaller items like a cedar chest, ironing board, side table, or mirror each run roughly 10 to 15 cubic feet apiece. Add those up: a bedroom set with a king bed, a dresser, and a handful of smaller items comfortably fills a 10x10 without much room to spare for additional boxes on top.
For a single room's worth of furniture, a studio apartment, or genuine overflow from a move, a 10x10 is usually the right call for most renters in this situation.
When You've Actually Genuinely Outgrown It
Once you're combining more than one room's worth of belongings, the math tips toward a 10x20 fairly quickly. A double bed alone runs about 55 cubic feet, and a bunk bed set runs closer to 70. Stack a second bedroom's furniture, a couch, or a dining set on top of what a 10x10 already holds, and you're well past what 100 square feet can reasonably fit without stacking items dangerously high or blocking access to anything you'll actually need later on.
A 10x20 doubles the floor space to 200 square feet, comparable to a one-car garage, and comfortably handles a full apartment's worth of furniture, multiple bedrooms combined, or a household move that's outgrown a single room's footprint entirely.
Using the Size Calculator Before You Ever Guess
Rather than ...
—
September 24th, 2026
