Fire services for warehouses: what triggers hydrants, hose reels and sprinklers
By Brenscot Builders | Last reviewed September 2026
Fire services are where a warehouse design meets real infrastructure cost: hydrants, hose reels, sprinklers, water tanks and pumps. Owners often find out about them late, after the floor area and height are fixed, when the hydraulic engineer asks where the tank and pump room will go.
The triggers are set out in the National Construction Code (NCC) and they are specific. This article explains each one in plain terms.
This article refers to NCC 2022 Volume One, which applies in Queensland until NCC 2025 commences on 1 May 2027.
The short answer
Almost every warehouse over 500 m2 needs a fire hydrant system and fire hose reels. Sprinklers are not automatically required, but they are triggered by combustible goods stored higher than 4 m in larger fire compartments, by using the large isolated building provisions, and sometimes by tenants and insurers. Whether the town water main can supply the required flow decides whether the site needs its own tanks and pumps.
The triggers at a glance
| Fire service | NCC trigger (Class 7b and 8 buildings) | NCC clause | Standard |
|---|---|---|---|
| Portable fire extinguishers | Required to suit the hazards in the building | E1D14 | AS 2444 |
| Fire hose reels | Where internal hydrants are installed; otherwise any fire compartment over 500 m2 | E1D3 | AS 2441 |
| Fire hydrants | Total floor area over 500 m2, where a fire brigade station is within 50 km by road | E1D2 | AS 2419.1 |
| Sprinklers: excessive hazard | Fire compartment over 2,000 m2 or 12,000 m3 in an occupancy of excessive hazard | E1D13 | AS 2118.1 (NCC Specification 17) |
| Sprinklers: large isolated building | Required for some large isolated building pathways | C3D4 | AS 2118.1 (NCC Specification 17) |
| Smoke hazard management | Large isolated buildings | E2D10 | Various |
| Emergency lighting and exit signs | Based on floor area and layout | Part E4 | AS/NZS 2293.1 |
Fire hydrants
A hydrant system provides water for the fire brigade. Under clause E1D2 it is required where the building's total floor area exceeds 500 m2 and a fire brigade station equipped to use hydrants is within 50 km by road. That captures nearly every warehouse in South East Queensland.
Hydrants can be external (pillar hydrants in the yard, or in some cases street hydrants) or internal, depending on the size and layout of the building and whether all parts of the floor can be reached by hose from outside. Where a booster assembly is required, it is located near the site entry so the fire brigade can connect a pump truck and boost the system.
The critical question is water supply. AS 2419.1 requires the system to deliver a set flow and pressure. The hydraulic engineer obtains a flow and pressure test of the town water main from the water utility. If the main can't deliver, the site needs on-site water storage and fire pumps. A tank and pump set occupies real space, needs power and truck access, and must be allowed for in the site layout. The Queensland Fire Department publishes position statements on hydrant and water supply requirements that designers follow.
Fire hose reels
Hose reels are for use by occupants in the early stage of a fire. Under clause E1D3 they are required throughout a building that has internal hydrants, and otherwise in any fire compartment over 500 m2. Office (Class 5) buildings are among those exempt, but Class 7b warehouses and Class 8 factories are not.
Hose reels must be located so that the hose reaches every part of the floor, which is a practical challenge in a wide warehouse once racking is installed. The racking layout and the hose reel layout should be designed together.
Sprinklers
Sprinklers are not required in every warehouse. They enter a design in four ways.
1. Storage that makes the building an "occupancy of excessive hazard"
Under clause E1D13, sprinklers are required in a fire compartment larger than 2,000 m2 or 12,000 m3 if the building is an occupancy of excessive hazard. That term covers:
- Listed hazardous processes and storage, such as foam plastics, fireworks, aircraft hangars and flammable fibrous materials
- Combustible goods with a total volume of more than 1,000 m3, stored higher than 4 m. The NCC's list includes aerosols, carpets and clothing, electrical appliances, fibreboard and plywood, combustible cartons whatever their contents, furniture, paper, textiles, timber, plastics, rubber, and anything packed in foamed plastic
This matters to almost every racked warehouse. One thousand cubic metres is a modest amount of stock for a racked warehouse, and storage above 4 m is normal in pallet racking. If your operation, or a future tenant's, will store more than 1,000 m3 of ordinary packaged goods above 4 m, the deemed-to-satisfy choices are to keep each compartment within 2,000 m2 and 12,000 m3, or to sprinkler it.
The thresholds match the Type C compartment limits in Table C3D3, so a Type C building divided into complying compartments stays below this trigger. See fire walls and fire compartments.
2. Large isolated buildings
A warehouse that exceeds the normal compartment limits under the large isolated building provisions (clause C3D4) needs sprinklers if it is over 18,000 m2 or 108,000 m3, or if it doesn't have an 18 m wide open space around it. The open-space option is limited to Class 7 or 8 buildings of no more than 2 storeys and must include fire truck access.
3. Height and other uses
Buildings with an effective height over 25 m (roughly, the height of the top floor above the lowest ground-level floor) need sprinklers under clause E1D5, as do some other building classes. This rarely applies to a conventional warehouse.
4. Tenant and insurer requirements
Major logistics tenants and some insurers require sprinklers, often to a higher specification than the NCC minimum. If the building is intended for that market, find out before design.
What a sprinkler system involves
- A water supply sized for the storage arrangement, which generally means dedicated tanks and pumps
- Pipework and heads at roof level, and sometimes within the racking
- A design based on what is stored, how high and in what packaging. Changing the storage later can mean upgrading the system
- Clearance between the top of stored goods and the sprinkler heads
- A valve room, an alarm connection and fire brigade access
Ongoing maintenance is a legal obligation
In Queensland, fire hydrants, hose reels, sprinklers, fire detection, emergency lighting and similar systems are "prescribed fire safety installations". Under the Building Fire Safety Regulation 2008 and Queensland Development Code MP 6.1, the occupier must have them maintained by appropriately qualified people in accordance with AS 1851, keep maintenance records, and prepare an occupier statement each year.
AS 1851 sets routine service intervals. For sprinkler systems these include monthly, six-monthly, yearly and five-yearly activities, with further testing as systems age. For tanks, pumps and hydrants there are regular tests and periodic major services. Allow for this in the building's outgoings. It is one reason some owners prefer fire walls and smaller compartments where that gives a complying building without sprinklers.
How the fire brigade is involved in approval
Hydrants, sprinklers, fire detection and alarm systems, smoke exhaust and vehicular access for large isolated buildings are "special fire services" under the Planning Regulation 2017. A building application that includes them, or that includes a fire safety performance solution, must be referred to Queensland Fire and Rescue (part of the Queensland Fire Department) for advice. The fire service can also inspect and test the installed systems before the certificate of occupancy is issued. See the certification pathway.
Why these decisions belong at concept stage
- Floor area, height and storage method together decide whether sprinklers are needed
- A tank and pump set needs space, access and power
- Hose reel and hydrant coverage depends on the building's shape and the racking layout
- Awnings can add to floor area and volume. See awnings and fire volume
- The fire service referral takes time and must be in the programme
The cheapest fire strategy is the one decided together with the floor area and height.
Frequently asked questions
When does a warehouse need sprinklers?
Under the NCC, mainly when a fire compartment over 2,000 m2 or 12,000 m3 holds more than 1,000 m3 of combustible goods stored above 4 m, or contains a listed hazardous process, or when the building relies on the large isolated building provisions. Tenants and insurers may also require them.
Does every warehouse need fire hydrants?
Every warehouse with a total floor area over 500 m2, where a fire station is within 50 km by road, needs a hydrant system.
Do I need a fire water tank?
For hydrants, only if the town water main can't supply the required flow and pressure. A flow and pressure test early in design answers that. Sprinkler systems for storage warehouses generally need their own tanks and pumps.
Are fire hose reels required in a warehouse?
Yes, in any fire compartment over 500 m2, and throughout any building with internal hydrants.
Who maintains the fire systems after handover?
The occupier is responsible under the Building Fire Safety Regulation 2008. Leases usually set out how the cost is shared between owner and tenant.
Sources
- National Construction Code 2022, Volume One: clauses E1D2, E1D3, E1D4, E1D5, E1D13 and E1D14; clause C3D4; clause E2D10; Part E4; Table C3D3, ncc.abcb.gov.au
- AS 2419.1 Fire hydrant installations; AS 2441 Installation of fire hose reels; AS 2118.1 Automatic fire sprinkler systems; AS 1851 Routine service of fire protection systems and equipment
- Queensland Fire Department, referral agency advice guidelines and position statements, fire.qld.gov.au
- Building Fire Safety Regulation 2008 (Qld); Queensland Development Code MP 6.1
- Planning Regulation 2017 (Qld), Schedule 9 Part 3 Division 3 and Schedule 19
General information only
This article is general information based on NCC 2022 Volume One, current as at September 2026. It is not design or certification advice. Fire services for your building must be designed by a qualified fire services engineer and confirmed by your building certifier.
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