Rated for 77 people at FEMA occupancy and up to 131 at maximum capacity, the TornadoLock™ CS5008 is an 8′ × 50′ solid-steel storm shelter engineered for high-headcount sites. Permanently anchored to a concrete slab, it includes a pair of ICC 500 certified exit doors, a composting toilet with privacy enclosure, and a hand-sanitizer station for extended occupancy. Every unit is independently tested to FEMA P-361 and ICC 500 and rated for EF-5 winds up to 250 MPH, protecting large crews at plants, warehouses, and university campuses. Size this shelter to your headcount with the free Tornado Shelter Planner.
400 sq ft of welded steel protection, engineered to FEMA P-361 and ICC-500 criteria for EF-5 events at 250 MPH, anchored to an engineered foundation as a permanent fixture of the site. The 8-foot width keeps the footprint narrow enough to place near the buildings it serves while still running a full 50 feet of protected floor.
Both entry points are ICC-500 code-compliant and debris-impact rated, with three stainless sliding locks apiece, six total, every one operated from inside. The shelter cannot be locked from the outside, and it's rated to remain operable after impact so nobody is sealed in waiting on rescue.
Occupancy runs off the FEMA and ICC-500 formula: 5 sq ft per person for design, 3 sq ft per person at maximum, calculated against usable floor area. Bench seating is integrated into the shell rather than added after, high-grit flooring handles wet boots, and ADA full-size access doors are standard per ICC-500.
Roof-mounted solar and a backup battery keep the interior lit through a grid outage, so the shelter stays lit whether or not the facility it serves still has power. Steel-plate-shielded vents meet ICC-500 net-free-area for natural ventilation while resisting debris and wind-driven rain.
1/4-inch structural steel plate in ASTM A36 and A572, solid-welded across wall, roof, and floor, with an interior truss system engineered for extreme load at 250 MPH. Nothing about the shell changes between our rental and permanent units, and the engineering is independently third-party reviewed against published standards.
The CS5008 is set and anchored on a concrete foundation engineered to carry the uplift, sliding, and overturning loads a 250 MPH event puts into the structure. Placement is worked out around your existing buildings and travel distances, so the shelter sits where crews can actually reach it inside the warning time they'll have.
Engineered, built, and independently third-party reviewed to recognized life-safety standards for violent tornadoes.
| Model | CS5008 — CS Series (permanent-install) |
|---|---|
| Type | Above-ground commercial tornado shelter / community safe room |
| Design wind speed | EF-5 / 250 MPH |
| Governing standards | FEMA P-361, FEMA P-320, ICC-500, IBC |
| Protection level | Near-Absolute Protection (NSSA criteria) |
| Debris impact tested | Withstands a 100 MPH missile impact |
| Engineering review | Independent third-party reviewed |
| Product brand | TornadoLock™ Tornado-Safe Storm Shelters |
| ADA full-size access doors | Standard |
| Manufactured | Wilkesboro, North Carolina, USA |
| Nominal footprint | 8' W x 50' L × 8′ H |
|---|---|
| Extreme-load structural steel truss system | Standard |
| Protected floor area | 400 sq ft |
| FEMA design occupancy | 77 persons (5 sq ft / person) |
| Maximum capacity | 131 persons (3 sq ft / person) |
| Storm-safe entry / egress doors | 2 |
| High-security 1″ stainless sliding locks | 6 — three per door, interior-operated |
| Seating | Integrated bench seating — standard |
| High-grit textured flooring | Throughout |
| Interior lighting | Integrated solar with battery backup |
| Air ventilation | Steel-plate-shielded vents |
| Electrical grounding rod system | Standard |
| Emergency toilet & privacy screen | Optional |
| Anchorage | Project-specific, engineer-certified |
Occupancy is calculated by the FEMA / ICC-500 method — protected area divided by 5 sq ft per person for design occupancy and 3 sq ft per person for maximum capacity. Usable-area deductions for fixtures and accessibility are applied per the site’s certified plan.
Engineered to the standard, not to a price point. This is not a converted shipping container or a light-gauge storm box.
Designed to FEMA P-361 and ICC-500 criteria for EF-5 / 250 MPH events, with engineering independently third-party reviewed.
A ¼" welded steel envelope in structural ASTM A36 / A572 — built to resist wind-borne debris, the true killer in a violent tornado.
400 sq ft yields 77 FEMA-design / 131 maximum occupants, served by 2 code-compliant doors and engineered ventilation — no guesswork.
Permanently installed on a poured foundation for long-term, on-site protection — ideal for manufacturing plants, campuses, and government facilities. Nationwide.
EF-5 shelter, large-hail and high-wind refuge, and a hardened multi-use field facility — all in a single unit.
Use the free Tornado Shelter Planner to size occupancy, choose a model, and build your emergency plan — or talk it through with a US Tornado Shelter specialist.
The same sealed steel envelope that stops 250 MPH debris keeps out rain, hail, heat, and cold — so the CS5008 doubles as a hardened field asset between storms.
Add lighting, outlets, and equipment power to turn the unit into a working field station.
Heating/cooling provisions create a warm-up / cool-down station for crews in extreme heat or cold.
Because it’s already the crew’s break room, it’s staffed and occupied the moment the sirens sound — zero travel time to shelter.
Scroll through the engineered features that protect your people — from the welded steel envelope to the anchorage that keeps the CS5008 planted through an EF-5 event.
The CS5008 is a 50' x 8' permanent shelter engineered to FEMA P-361 and ICC-500 criteria for EF-5 events at 250 MPH. 400 sq ft of welded steel protection anchored to an engineered foundation, with the 8-foot width holding the footprint tight enough for constrained sites without shortening the 50-foot run.
US Tornado Shelter units are engineered to ICC-500 and FEMA P-361 air circulation and ventilation requirements for each shelter's occupant load. Vents are steel-plate shielded to resist debris and wind-driven rain while maintaining required net free area.
The CS5008 is a permanent installation, anchored to an engineered concrete foundation designed to the same ICC-500 and FEMA P-361 criteria as the shell above it. That anchorage is what transfers uplift, sliding, and overturning loads into the ground during a 250 MPH event.
These panels charge the emergency battery backups for our interior solar lighting, so the shelter stays lit whether or not the building it serves still has power.
Our heavy steel storm rated doors have been impact tested and approved to meet EF-5 tornado rated protection.
Each door is heavy gauge 1/4-inch plate steel construction with added structural reinforced framing across the door for extra security and impact safety.
Each access door has three (3) 1-inch stainless steel sliding security locks. These locks ensure no debris impact will shudder the door open in an extreme tornado event.
Integrated bench seating is standard in all our shelters, running along both side walls as a comfort feature when occupied.
The same high-grit surface is used on the interior floor as at the entry threshold. This helps occupants keep traction when entering and repositioning inside the unit if shoes or surface become wet.
Beyond the 1/4-inch solid plate steel shell, our shelters use premium steel reinforced structural trusses throughout, creating extreme load bearing capacity for impact, debris, and extreme conditions.
On both sidewalls you'll find handrails helping standing occupants find comfortable positions and support without coming into contact with the external shell wall.
Our shelters come standard with battery backup solar lighting for off-grid emergency use.
Emergency lit exit signage is standard at each access door on our tornado shelters.
A privacy screen for the emergency toilet facilities is provided in each shelter with toilet facilities.
Emergency toilet facilities are available for any unit and included standard on larger capacity shelters.
Contact us below to protect your team!
Real photographs of the shelter — exterior, entry, interior, and on-site deployment.
Not every site has room to spare. The TornadoLock™ CS5008 is an 8′ × 50′ solid-steel storm shelter with 400 square feet of protection, sheltering 77 people at FEMA occupancy and up to 131 at maximum capacity. The narrower width lets it sit close to the buildings it serves, along a wall line or in a side yard, which is what keeps travel time short when the warning comes. Permanently anchored to an engineered slab, it’s fully equipped with two 36-inch ICC 500 certified exit doors, a composting toilet, privacy enclosure, and hand-sanitizer station. Independently certified to FEMA P-361 and ICC 500 and rated for EF-5 winds up to 250 MPH, it protects plants, warehouses, and university campuses. Map your occupancy needs and phased capacity in the Tornado Shelter Planner.
A specialist will follow up within one business day.