Life safety
Tornado Shelters – Mobile Base (No Concrete)
A Mobile Base (No Concrete) shelter sits on its own steel base, so there is no slab to pour and the shelter can move with your project. Ten sizes, from the 8x10 for up to 26 persons to the 10x50 for up to 164 persons Maximum Occupancy. Designed to FEMA P-361 and ICC 500 criteria for EF-5 tornadoes (250 mph winds).
10 of 10 models
Mobile Base (No Concrete)CSB1008 · 8' x 10'
8x10 Tornado Shelter – Mobile Base (No Concrete)
- Up to 26 persons
- 80 sq ft
- 1 door
Mobile Base (No Concrete)CSB1010 · 10' x 10'
10x10 Tornado Shelter – Mobile Base (No Concrete)
- Up to 33 persons
- 100 sq ft
- 1 door
Mobile Base (No Concrete)CSB2008 · 8' x 20'
8x20 Tornado Shelter – Mobile Base (No Concrete)
- Up to 53 persons
- 160 sq ft
- 1 door
Mobile Base (No Concrete)CSB2010 · 10' x 20'
10x20 Tornado Shelter – Mobile Base (No Concrete)
- Up to 66 persons
- 200 sq ft
- 1 door
- Mobile Base (No Concrete)
CSB3008 · 8' x 30'
8x30 Tornado Shelter – Mobile Base (No Concrete)
- Up to 80 persons
- 240 sq ft
- 2 doors
- Mobile Base (No Concrete)
CSB3010 · 10' x 30'
10x30 Tornado Shelter – Mobile Base (No Concrete)
- Up to 100 persons
- 300 sq ft
- 2 doors
- Mobile Base (No Concrete)
CSB4008 · 8' x 40'
8x40 Tornado Shelter – Mobile Base (No Concrete)
- Up to 106 persons
- 320 sq ft
- 2 doors
- Mobile Base (No Concrete)
CSB5008 · 8' x 50'
8x50 Tornado Shelter – Mobile Base (No Concrete)
- Up to 131 persons
- 400 sq ft
- 2 doors
- Mobile Base (No Concrete)
CSB4010 · 10' x 40'
10x40 Tornado Shelter – Mobile Base (No Concrete)
- Up to 133 persons
- 400 sq ft
- 2 doors
- Mobile Base (No Concrete)
CSB5010 · 10' x 50'
10x50 Tornado Shelter – Mobile Base (No Concrete)
- Up to 164 persons
- 500 sq ft
- 2 doors
No models match every filter. or tell us what you need — we have more configurations than we list.
Compare shelter 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) |
Concrete Slab Install or Mobile Base?
Concrete Slab Install
- Anchored to an engineered concrete slab for permanent placement.
- Best for schools, plants, campuses and community sites that need a long-term shelter.
- Plan for slab design, site prep and local permitting in your schedule — we help you scope it.
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.
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 tornado shelter quote
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.
Call 888-264-2449Free Consultation
Tell Us What You Need
On submit you agree to all Terms and Privacy Policy.
Or call 888-264-2449 · Mon–Fri 8AM–5PM