Large Storage Units in Twin Falls, ID - 8x20 Drive-Up & 12x30 Powered Sizes
SJ Storage is Twin Falls' large-unit specialist. We don't rent small 5×5 or 10×10 lockers — our two sizes are built for RVs, boats, contractor gear, and whole-household moves.
Not sure which size you need? Try our storage space calculator to see what fits in each unit, drawn to scale — a car, the boxes, and more.
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View current unit sizes, pricing, and availability. Reserve your unit online today — no long-term commitment required.
Find The Right Storage
SJ Storage is Twin Falls' large-unit specialist. We don't rent small 5x5 or 10x10 lockers. Our two sizes are built for big loads: an 8x20 drive-up container and a 12x30 powered indoor unit. Whether you're storing an RV or boat, clearing out a whole house, or holding business inventory, you get a secure, accessible space that keeps everything organized.
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What Fits in Each Size
Both of our units are large. Here's a real-world feel for how much each one holds.
8x20 Drive-Up Container (160 sq ft)
Roughly the contents of a 2 to 3 bedroom home, a vehicle parked next to a stack of boxes, or several ATVs and motorcycles together. Pull right up to the door and load straight off your trailer.
12x30 Powered Indoor Unit (360 sq ft)
Room for an RV or a boat on its trailer, a large household move, or a full household plus business inventory. The low-amp outlets let you trickle-charge a battery while it sits.
Need power for your gear? Learn how our powered units work.
Exact dimensions: 8x20 = 160 sq ft. 12x30 = 360 sq ft with a 10x12 roll-up door. Want help picturing it? Use the storage space calculator or check current specials.
Storage Units & Rates
Flexible month-to-month rentals with no long-term commitment. Deposits are fully refundable.
| Unit Type | Size | Key Features | Monthly Rate | Deposit |
|---|---|---|---|---|
| 8x20 Outdoor Container | 160 sq ft | Drive-up access, gated & surveilled | $110 | $50 (refundable) |
| 12x30 Indoor Unit | 360 sq ft | Powered outlets, 10'x12' roll-up doors, indoor & enclosed (not climate-controlled) | $210 | $210 (refundable) |
8x20 Outdoor Container
160 sq ft · Drive-up
$110
per month
- 160 square feet of space
- Drive-up access
- Ideal for vehicles, ATVs, motorcycles
- Seasonal items & household goods
- Contents of a 2-3 bedroom home
- Gated & surveilled facility
$50 refundable deposit at move-in
12x30 Indoor Unit
360 sq ft · Powered
$210
per month
- 360 square feet of indoor space
- 10' wide x 12' high roll-up doors
- Low-amp power outlets included
- Perfect for RVs, boats on trailers
- Trickle charge batteries while stored
- Protected from wind, rain & sun
$210 refundable deposit at move-in
Ready to Reserve Your Unit?
Check real-time availability and reserve your storage space online.