Engineered Chemical & Hazmat Storage Buildings
Fire-rated and non-fire-rated chemical storage buildings with built-in secondary containment, engineered for NFPA 30, OSHA, EPA and International Fire Code compliance and delivered nationwide. Buy permanent, or rent for projects and shutdowns.
- 2 & 4 hrFire-rated designs, UL-classified components
- 40 CFR 264.175EPA secondary containment
- 20 yr Structural warranty
- Over 45 yrsSteel design, engineering, and fabrication experience
- NationwideDelivery & installation
Hazmat Storage Buildings Engineered Around Your Chemicals, Codes and Workflow
US Hazmat Storage is a US manufacturer of prefabricated steel hazmat storage buildings and lockers for flammable, combustible, corrosive and reactive materials.
We engineer and fabricate every unit in North Carolina. Our headquarters is in Boone and our fabrication plant is in Wilkesboro. We then deliver and install nationwide for manufacturing, aerospace, defense, chemical processing, pharmaceutical, utilities, agriculture and government facilities.
Each building combines fire-rated construction, secondary spill containment, ventilation and climate control in one code-compliant structure. That structure can be sized for a single drum or for hundreds of drums, totes and pallets. When you need storage for a project rather than permanently, our sister company US Hazmat Rentals supplies the same engineered buildings on short- or long-term rental. About US Hazmat Storage.
Chemical Storage Solutions by Hazard and Application
Start with the hazard you're managing. Every building below can be combined with any material-handling layout and configured to your site's code requirements.
Flammable, Combustible & Fire-Rated Storage
Store Class I flammable and Class II/III combustible liquids safely within or near occupied facilities. Our fire-rated chemical storage buildings use UL-classified 2-hour (FireSAFE 2X™) or 4-hour (FireSAFE 4X™) wall and roof assemblies. Options include explosion relief, Class I Div 1/Div 2 electrical and mechanical ventilation.
Not sure which rating your fire marshal will require? Compare 2-hour vs. 4-hour fire-rated construction, or review the rules for flammable and combustible liquids storage.
Explore Fire-Rated Buildings
Spill & Secondary Containment
Every US Hazmat Storage building sits on an integrated, leak-tight steel containment sump with galvanized grating. It is sized to EPA 40 CFR 264.175: at least 10% of total stored volume or 100% of the largest container, whichever is greater.
Our bunded storage and secondary containment buildings capture leaks from drums, IBC totes and palletized containers before they reach your floor drains, soil or stormwater. Use our guide to calculate secondary containment for 55-gallon drums.
Explore Containment Buildings
Fully Custom & Modular Buildings
When a catalog unit won't fit your process, we engineer one that does. Our custom chemical storage buildings are built to your footprint, chemical inventory, door and forklift layout, and fire-rating mix. They range from single engineered units to duplex modular storage systems that join independently rated modules into one segregated, multi-room facility.
Designs are engineered to NFPA 30, OSHA 29 CFR 1910 and IBC/IFC requirements. See a custom build in action.
Start a Custom Design
Climate-Controlled Storage
Heat, cold and humidity degrade chemicals and push flammable liquids toward their flash points. Our climate-controlled chemical storage buildings integrate HVAC or heat-only systems, dehumidification and explosion-proof ventilation inside fire-rated construction.
They keep solvents, resins, coatings, pharmaceuticals, food additives and battery materials within their SDS storage range year-round. They're also available for 55-gallon drum storage with climate control.
Explore Climate-Controlled StorageSpecialized Hazardous and Chemical Storage Buildings
- Non-fire-rated chemical storage buildingsCost-effective ChemSAFE™ units for corrosives, pesticides and liquids sited 30+ ft from other structures
- Lithium battery storage buildingsFire-rated enclosures for battery inventory and energy-storage components
- Explosion-proof chemical storageExplosion relief and hazardous-location electrical for high-hazard materials
- Chemical mixing and dispensing roomsContained work areas for transfer, blending and dispensing
- Agrochemical and pesticide storageContainment and ventilation for fertilizers, herbicides and pesticides
Storage Layouts Built Around How You Move Material
Tell us what you store it in, and we'll engineer the racking, doors, containment volume and forklift access around it.
55-Gallon Drum Storage
From a single drum to hundreds, our 55-gallon drum storage buildings come in 6′ to 14′ widths with drum racking, pallet platforms and pump or dispense stations. Standard non-fire-rated units hold 12 drums (660 gal) in a 10′ building up to 42 drums (2,310 gal) in a 30′ building. Fire-rated 40′ units hold up to 57 drums (3,135 gal). Compare drum capacity and access configurations to size your building.
Size a Drum Building
IBC Tote Storage
Our IBC tote and pallet storage buildings are built for forklift loading through 9′ to 17′ roll-up doors, in single-, double- and triple-depth layouts, from 4 totes up to 32 totes (128-drum equivalent). Grated floors over leak-proof containment, static grounding, seismic bolt-down plates and 2-part epoxy coating come standard. New to totes? Read what IBC totes are and how to store them compliantly.
Explore Tote Storage
Small Container Storage & Hazmat Lockers
For pails, gallon cans, aerosols, lab chemicals and small volume 1–4 drum inventories, our fire-rated hazmat lockers provide segregated outdoor storage with built-in spill containment, shelving, ventilation and self-closing doors, for far less than a full building. Need something between a locker and a warehouse? Our hazmat container storage buildings handle mixed small containers, drums and totes under one roof.
Explore Hazmat Lockers
Palletized Material Storage
Palletized chemicals, drums on spill pallets and mixed-SKU loads go straight in by forklift. Tote-series buildings take standard pallets two to eight wide with optional double-sided access. Check the tote and pallet storage capacities chart to match building size to your pallet count, then configure doors, racking and containment volume to suit.
Plan a Pallet LayoutBuilt to the Codes Your Inspector Enforces
Compliance isn't an add-on. It's designed in from the first drawing. We supply code documentation for your Authority Having Jurisdiction (AHJ) and fire marshal, and design to NFPA, OSHA and EPA requirements together.
NFPA 30 & NFPA 704
NFPA 30, the Flammable and Combustible Liquids Code, governs how much flammable liquid you can store, where, and behind what fire separation. Our fire-rated buildings let you store Class I liquids close to your operations, and non-fire-rated units can be sited 30 ft from buildings under NFPA 30 and AHJ approval.
Learn what NFPA 30 requires for compliant storage, how to read the NFPA 704 fire diamond, and what goes into NFPA 30 permit requirements.
OSHA 29 CFR 1910.106
OSHA 1910.106 sets the rules for storing flammable liquids in the workplace: container limits, ventilation, ignition-source control and safe egress. It's one of the most-cited areas in chemical-handling inspections. Our buildings are designed so your EHS team can document compliance on day one.
See the full OSHA hazardous chemical storage requirements and our checklist of OSHA flammable storage requirements.
EPA 40 CFR 264.175 & SPCC
EPA rules require hazardous-waste container areas to have secondary containment that holds at least 10% of total volume or 100% of the largest container, whichever is greater. Facilities above SPCC oil thresholds need spill prevention plans under 40 CFR Part 112.
Every US Hazmat Storage building includes an engineered containment sump sized to these rules, helping you avoid EPA fines and costly remediation.
International Fire Code & Permitting
Local fire marshals enforce the International Fire Code (IFC Chapters 50 and 57) alongside NFPA 30. The IFC sets maximum allowable quantities (MAQs) per control area and triggers detached or fire-rated storage once you exceed them.
Learn how maximum allowable quantities of flammables drive your storage decision. Our engineering team supports your AHJ submittal from drawings to final inspection.
Non-compliance has a real price tag.
OSHA fines for non-compliant hazardous material storage range up to $16,550 per serious violation and up to $165,514 per willful or repeat violation. Every US Hazmat Storage building starts from code, not just close to it, so your next inspection is a formality, not a scramble.
Compliance Documentation
Ships with the paperwork you need to feel confident.
Engineer-Reviewed
A licensed engineer signs off on every configuration before it's built.
A Closer Look at What's Inside
Trusted By Companies Across Every Industry
Need It for a Project, Not Forever? Rent It.
Plant shutdowns, construction projects, remediation work and compliance gaps don't always justify a permanent building. Through our sister company, you can rent hazmat storage buildings with the same fire-rated construction and built-in containment, delivered and removed on your schedule.
When the project becomes permanent, we'll help you move to a purchased unit.
View Rental Options- RentPlant shutdowns & turnarounds
- RentConstruction & remediation projects
- RentCompliance gaps while a permanent building is built
- BuyOngoing, permanent storage
From Consultation to Commissioning
One team owns your project, from the first SDS review to the day your building goes into service.
- 1
Consult
We review your chemical inventory, SDSs, quantities and site constraints. - 2
Engineer
Our team designs the fire rating, containment, ventilation, electrical and layout, and prepares AHJ documentation. - 3
Fabricate
Your building is welded, coated and factory-tested at our Wilkesboro, NC plant. - 4
Deliver
Shipped nationwide ready to set, with forklift pockets or crane lugs for placement. - 5
Install & Commission
On-site setup guidance, commissioning and operator documentation. - 6
Support
Backed by a 20-year structural warranty and ongoing service.
Review site prep, delivery and installation guidance in our product manual.
Trusted by Industrial, Government and Research Facilities
Browse chemical storage building photos from completed installations, or read our custom build spotlights.
Chemical Storage Building FAQs
Straight answers to the questions we hear most from EHS managers, plant engineers and procurement teams.
How much does a chemical storage building cost?
Cost depends on size, fire rating, containment volume and options like climate control and explosion-proof electrical. Request a chemical storage building quote for pricing on your exact configuration.
Do I need a fire-rated building?
Usually, if you store flammable or combustible liquids within about 30 ft of an occupied building or property line, or above your fire code's maximum allowable quantities. Your Authority Having Jurisdiction (AHJ) makes the final call, and we provide the documentation.
How much secondary containment do I need?
Under EPA 40 CFR 264.175, at least 10% of total stored volume or 100% of the largest container, whichever is greater. Local codes and SPCC plans may require more.
Can I store different chemical classes together?
Only if they're compatible. Incompatible classes (e.g., oxidizers and flammables) need separate compartments or buildings. Our duplex and multi-room designs provide segregated, independently contained bays.
Do you deliver and install nationwide?
Yes. We fabricate in North Carolina and deliver and install anywhere in the continental US.
Should I rent or buy?
Rent for temporary projects, shutdowns or while a permanent building is being built. Buy for ongoing storage. Both are available.
See all chemical storage FAQs.
Compliance Guides from Our Engineers
Reference material for classifying what you store before you size a building.
Part of a Family of Safety Infrastructure Brands
US Hazmat Storage is affiliated with US Hazmat Rentals for temporary hazmat storage, US Tornado Shelter for FEMA P-361 and ICC 500 community storm shelters, and US Safe Room for residential and commercial safe rooms.