Find the Right Storage Unit Size at Grand Teton Storage in Ammon, ID
Units from 4' x 5' up to 17' x 30', starting at $15 a month.
Not sure which one fits your stuff? Keep reading, or just call 208-523-9820 and we'll figure it out together in a couple minutes.
What Fits in Each Size
Here's a general guide to what each size typically holds. Think of it as a starting point, not a hard rule; everyone's boxes and furniture are a little different.
4' x 5' (20 sq ft)
Our smallest unit, about the size of a small closet. Good for a handful of boxes, seasonal decorations, sports gear, or the overflow that just needs to be out of the way.
5' x 5' (25 sq ft)
About the size of a small closet or half bathroom. Holds a chest of drawers or a desk, a mattress set, several boxes and small items, or roughly 50 file boxes.
5' x 10' (50 sq ft)
Comparable to a walk-in closet. Fits a mattress set, a sofa, a dining room set or chest of drawers, plus boxes and small items.
5' x 15' (75 sq ft)
Like a large walk-in closet or small bedroom. Holds the standard furnishings of a one-bedroom apartment without appliances, or around 150 file boxes.
10' x 10' (100 sq ft)
About the size of an average bedroom. Fits a one-bedroom apartment's furnishings, including a refrigerator and washer/dryer, plus patio furniture and boxes, or roughly 200 file boxes.
10' x 15' (150 sq ft)
Comparable to a large bedroom. Holds a two-bedroom apartment or small house's worth of furnishings and appliances, a vehicle or small boat, or enough room for carpet rolls and building materials.
10' x 20' (200 sq ft)
About the size of a small one-car garage. Fits a two-bedroom house's furnishings with appliances and patio furniture, or a vehicle or small boat, or construction equipment.
10' x 25' (250 sq ft)
Like a large one-car garage. Holds a three-bedroom house's furnishings, garage extras, and miscellaneous items, or a vehicle or boat.
10' x 30' (300 sq ft)
Comparable to an extra-long one-car garage. Fits a four- or five-bedroom house's furnishings, garage extras, and miscellaneous items, or a vehicle or boat.
12' x 30' (360 sq ft)
Comparable to a one-and-a-half-car garage. Built for full household moves, an oversized vehicle or boat, business inventory, or anything that needs serious square footage.
17' x 30' (510 sq ft)
Our largest unit, comparable to a large two-car garage. Built for full household moves, oversized vehicles or boats, business inventory, or anything that just needs serious square footage.
Contact Us
Call us at 208-523-9820 and we'll walk you through what's currently open in your size range.
Choosing Between Two Sizes?
Most people end up debating between two sizes right up until moving day.
Here's the easy rule: if you're unsure, size up.
An extra couple of feet costs less than a second trip to the storage lot with the stuff that didn't fit.
Or skip the guesswork entirely and call 208-523-9820. We do this every day and can usually tell you the right fit within a minute or two of hearing what you've got.

Frequently Asked Questions About Storage Sizes in Ammon, ID
What's the biggest unit you have?
Our largest unit is 17' x 30' (510 sq ft), about the size of a large two-car garage. Give us a call to check current availability.
Can I switch to a different size after I move in?
Yes, give us a call and we'll see what's available. It happens more often than you'd think; people get in and realize they need a bit more or less room.
Is RV or vehicle storage a separate size category?
Yes. Inside RV and vehicle storage is available alongside our standard unit sizes. Call us for space availability and details.
I still don't know what size I need. What do I do?
That's exactly what the phone is for. We've been helping Ammon locals find the right size since 1980. Call us, tell us roughly what you're storing (a couple rooms of furniture, a garage's worth of boxes, whatever it is), and we'll point you to the right unit.
Does the price change depending on the size I pick?
Yes. Pricing starts at $15 a month for our smallest units and goes up from there depending on size. Call us and we'll give you an exact quote for the size you need.
We love ourmilitary and seniors! Discounts are awarded!
Still weighing your options? Reach out to us, and we'll help you land on the right size.
The Right Size Is One Call Away
Whatever you're storing, from a few boxes to a full garage, we've likely got a unit that fits. We're family owned and locally operated, and we treat every customer like family.
