Mobile Base (No Concrete)
10x20 Tornado Shelter – Mobile Base (No Concrete)
The CSB2010 is an above-ground steel tornado shelter (10' x 20') for up to 66 persons Maximum Occupancy (40 at design occupancy), on its own steel Mobile Base — no concrete to pour, and it relocates with your project. It has one storm-rated door and 200 sq ft of protected floor area. Designed to FEMA P-361 and ICC 500 criteria for EF-5 tornadoes (250 mph winds).
- Maximum Occupancy
- Up to 66 persons
- Footprint
- 10' x 20' · 200 sq ft
- Storm-rated doors
- 1
- Wind rating
- EF-5 · 250 mph
Also available as a Concrete Slab Install (CS2010).
CSB2010 specifications
| Model | CSB2010 |
|---|---|
| Footprint | 10' x 20' |
| Protected floor area | 200 sq ft |
| Maximum Occupancy | Up to 66 persons (3 sq ft / person) |
| Design occupancy | 40 persons (5 sq ft / person) |
| Storm-rated doors | 1 |
| Install type | Mobile Base (No Concrete) |
| Wind rating | EF-5 tornado, 250 mph |
| Standards | Designed to FEMA P-361 and ICC 500 criteria |
| Construction | Solid-welded steel |
Mobile Base (No Concrete)
- Sits on its own steel base — no concrete to pour.
- Relocates with your project: job sites, turnarounds, seasonal and temporary workforces.
- Faster site prep and flexible rental terms.
Inside every shelter
- Interior bench seating and LED lighting
- Natural ventilation with shielded vents
- One storm-rated access door
Designed to FEMA P-361 and ICC 500 criteria for EF-5 tornadoes (250 mph winds).
Full engineering details, 3D model and anchoring specs: CSB2010 on US Tornado Shelter.
Compare mobile base (no concrete) sizes
| Model | Footprint | Maximum Occupancy | Design occupancy | Doors | Install type |
|---|---|---|---|---|---|
| CSB1008 | 8' x 10' | Up to 26 persons | 16 persons | 1 | Mobile Base (No Concrete) |
| CSB1010 | 10' x 10' | Up to 33 persons | 20 persons | 1 | Mobile Base (No Concrete) |
| CSB2008 | 8' x 20' | Up to 53 persons | 32 persons | 1 | Mobile Base (No Concrete) |
| CSB2010 | 10' x 20' | Up to 66 persons | 40 persons | 1 | Mobile Base (No Concrete) |
| CSB3008 | 8' x 30' | Up to 80 persons | 48 persons | 2 | Mobile Base (No Concrete) |
| CSB3010 | 10' x 30' | Up to 100 persons | 60 persons | 2 | Mobile Base (No Concrete) |
| CSB4008 | 8' x 40' | Up to 106 persons | 64 persons | 2 | Mobile Base (No Concrete) |
| CSB5008 | 8' x 50' | Up to 131 persons | 77 persons | 2 | Mobile Base (No Concrete) |
| CSB4010 | 10' x 40' | Up to 133 persons | 80 persons | 2 | Mobile Base (No Concrete) |
| CSB5010 | 10' x 50' | Up to 164 persons | 97 persons | 2 | Mobile Base (No Concrete) |
More about the CSB2010
CSB2010 – TORNADO SHELTER
10×20 Community Storm Shelter
1 Storm-Rated Access Door
Occupancy: 40 – Maximum: 66
Tornado Shelter Standards
» Tornado Rated up to EF-5 Tornado
» Wind Load Resistance of 250 mph
» FEMA 320 / 361 & ICC500 Compliant
» IBC Structural Design Compliant
» Natural Air Ventilation
» Interior Bench Seating and LED Lighting
Frequently asked questions
How many people does each tornado shelter hold?
From up to 26 persons (8x10) to up to 198 persons (10x60) Maximum Occupancy, at 3 sq ft per person. Each model page also lists design occupancy at 5 sq ft per person.
Do tornado shelters need a concrete slab?
Only the Concrete Slab Install. The Mobile Base (No Concrete) shelter sits on its own steel base with no pour.
How many doors does a shelter have?
8x10 through 10x20 shelters have one storm-rated door; 8x30 and larger have two.
What standards are the shelters built to?
Our shelters are designed to FEMA P-361 and ICC 500 criteria for EF-5 tornadoes with 250 mph winds.
Talk to a specialist
Get a quote for the CSB2010
Tell us what you need and where it is going. We reply within one business day with availability, lead time and a rental quote. In-stock units ship in days with rush processing; turnkey delivery and pickup are quoted per site.
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