Forklift Classes: A Complete Guide to All 7 OSHA Classes

Forklift classes decide which truck fits your floor, which training your operators need, and what you should buy. The Industrial Truck Association sorts powered industrial trucks into seven classes by power source, tire type, and the job each truck does. Class I covers electric rider trucks, Class II narrow aisle trucks, and Class III hand trucks. Classes IV and V are internal combustion trucks, Class VI covers tow tractors, and Class VII covers rough terrain trucks. This guide walks through each one so you can choose the right truck from our forklift inventory and keep your team compliant.

What Are Forklift Classes?

A powered industrial truck is a vehicle driven by an electric motor or an internal combustion engine that lifts, carries, stacks, or tows material. Forklifts are the best known example, but pallet jacks, order pickers, and tow tractors belong to the same family. The class system exists because these machines behave very differently. A battery powered pallet jack and a diesel truck working a lumber yard share almost nothing in handling, hazards, or upkeep. Classes give you a common language for training, equipment specs, and purchasing.

Who Sets the Forklift Classifications

The seven classes come from the Industrial Truck Association, and they appear throughout OSHA forklift training materials. OSHA's standard for powered industrial trucks, 29 CFR 1910.178, is broader than the seven class list. It covers powered industrial trucks in general, including specialized types that do not fit neatly into a class. It does not cover vehicles built mainly for earth moving or over the road hauling. Think of the classes as a practical way to organize your fleet, and of the OSHA regulations as the rules you must follow.

What a Forklift Class Tells You

Each class number signals four things at a glance. The first is the power source, either electric or internal combustion. The second is the tire type, cushion or pneumatic. The third is the operator position, such as sit down, stand up, or walking behind. The fourth is the typical working environment, from smooth warehouse floors to muddy job sites. Once you know a truck's class, you already know most of what matters about where it belongs.

The 7 Forklift Classes at a Glance

Use this table to compare all seven classes before reading the details below.

Class	Name	Power Source	Typical Environment	Example Truck
Class I	Electric Motor Rider Trucks	Electric battery	Indoor warehouses and docks	Sit down counterbalanced forklift
Class II	Electric Motor Narrow Aisle Trucks	Electric battery	Tight racking and narrow aisles	Reach truck
Class III	Electric Motor Hand Trucks and Hand Rider Trucks	Electric battery	Loading areas and retail backrooms	Pallet jack
Class IV	Internal Combustion Engine Trucks with Cushion Tires	Internal combustion	Smooth indoor floors	LP gas cushion tire forklift
Class V	Internal Combustion Engine Trucks with Pneumatic Tires	Internal combustion	Outdoor and uneven surfaces	Diesel pneumatic tire forklift
Class VI	Electric and Internal Combustion Engine Tractors	Electric or internal combustion	Airports and factories	Tow tractor
Class VII	Rough Terrain Forklift Trucks	Mostly diesel	Construction sites and rough ground	Telehandler

Class I: Electric Motor Rider Trucks

Class I forklifts are electric motor rider trucks. These are the battery powered counterbalanced forklifts most people picture in a warehouse, with the operator either sitting or standing at the controls. They fit indoor material handling where noise and exhaust are a concern.

Common Types of Class I Forklifts

• Three wheel sit down trucks: compact trucks known for tight turning in busy aisles.
• Four wheel sit down trucks: trucks that suit higher capacities and longer travel.
• Stand up rider trucks: an electric stand up forklift lets operators step on and off often, which suits dock work and short runs.

Best Uses and Limits of Class I

Class I trucks run quietly and produce no exhaust at the truck, which makes them a natural choice for indoor use. The heavy battery sits at the rear and acts as the counterweight, so you do not need a separate ballast. The limits are surface and runtime. Cushion tire models want smooth, dry floors, and runtime depends on battery capacity, so plan for charging or battery changes across your shifts.

Class II: Electric Motor Narrow Aisle Trucks

Class II forklifts are electric trucks built for tight racking and narrow aisles. They trade the bulk of a counterbalanced truck for a design that places pallets high in dense storage. Class II forklifts are electric narrow aisle trucks designed for space optimization.

Common Types of Class II Forklifts

Reach trucks extend their forks or move the mast forward to place loads in racking, and a lithium stand up reach truck is a typical example. Order pickers lift the operator along with the forks so they can pull individual items from rack openings. Turret trucks rotate the fork head to load either side, which lets them work in very narrow aisles without turning the whole truck.

Best Uses and Limits of Class II

Narrow aisle trucks let you store more product in the same footprint, since you need less aisle width and can build racking higher. The tradeoff is the floor. These trucks need smooth, level surfaces because small wheels and tall lifts magnify any bump or slope. They are also poor choices for outdoor work.

Class III: Electric Motor Hand Trucks and Hand Rider Trucks

Class III covers low lift and short distance movers. You will find them at loading docks, in stockrooms, and across retail areas where a full size forklift would be too much truck.

Common Types of Class III Forklifts

The most common Class III truck is the pallet jack, available as a walk behind model or a rider model. A lithium electric pallet truck is one current example. Walkie stackers are similar machines that lift a pallet higher so you can stack it, though not to full rack height.

Best Uses and Limits of Class III

These trucks are generally the most affordable class to buy and run, and their compact size lets them work in tight spaces. Their limits are built in. Lift height and capacity are modest, so they move and stage loads well but do not replace a forklift for high racking.

Class IV: Internal Combustion Engine Trucks with Cushion Tires

Class IV trucks are internal combustion forklifts designed for smooth indoor floors. Class IV forklifts are internal combustion cushion tire trucks. They look a lot like Class I trucks, but an engine replaces the battery.

Common Types of Class IV Forklifts

Typical models are sit down counterbalanced trucks. LP gas is the usual fuel, with gasoline and diesel options also available. A LP gas cushion tire forklift is a representative example.

Best Uses and Limits of Class IV

Cushion tires sit low and allow a tight turning radius, so these trucks handle crowded warehouses and loading docks well. Because the engine produces exhaust, you need proper indoor ventilation. They also want smooth surfaces and are a poor match for rough or wet ground.

Class V: Internal Combustion Engine Trucks with Pneumatic Tires

Class V trucks are higher capacity machines built for outdoor and uneven surfaces. Class V forklifts use pneumatic tires suitable for outdoor and uneven surfaces, which absorb bumps that would rattle a cushion tire truck.

Common Types of Class V Forklifts

You will see diesel and gas powered models, including LP gas and gasoline. Capacity varies widely. A pneumatic tire diesel forklift in the PS Janitorial lineup is rated at 9,000 lb, and larger diesel models reach 15,500 lb.

Best Uses and Limits of Class V

Class V trucks suit lumber yards, shipping yards, and any operation moving heavy loads over rough ground. Emissions and noise are the main limits indoors, so use them inside only where ventilation and your safety program allow it.

Class VI: Electric and Internal Combustion Engine Tractors

Class VI consists of electric and internal combustion tractors designed for towing. Unlike the other classes, these vehicles pull loads rather than lift them.

Common Types of Class VI Vehicles

The main type is the tow tractor, which hitches to carts or trailers. These are rated by drawbar pull, the pulling force they can apply, instead of by lift capacity.

Best Uses and Limits of Class VI

Tow tractors move baggage carts at airports and pull trains of parts carts through factories. They are not designed to lift loads, so they complement your forklifts rather than replace them.

Class VII: Rough Terrain Forklift Trucks

Class VII forklifts are rough terrain forklifts. These are large tire, mostly diesel trucks built for job sites and uneven ground.

Common Types of Class VII Forklifts

Masted rough terrain trucks resemble oversized forklifts with big tires. Telescoping boom trucks, commonly called telehandlers, extend a boom forward and upward to place loads at height or over obstacles.

Best Uses and Limits of Class VII

Construction and lumber applications are the natural fit. Use these trucks outdoors only, and expect their size and cost to be higher than most warehouse equipment.

How to Choose the Right Forklift Class for Your Facility

Selecting the appropriate forklift class involves assessing your operating environment and logistical demands. Work through four questions in order: where the truck will run, how it will be powered, what it must lift, and whether you will buy new or used.

Indoor vs Outdoor Operation

Classes I to III are electric and suit indoor use on smooth floors. Class IV works indoors when you can ventilate exhaust. Class V handles outdoor and uneven surfaces, and Class VII is for rough ground only. Match the class to your floor surface, your ventilation, and how much weather the truck will see.

Electric vs Internal Combustion Power

Electric trucks are quieter and have no exhaust at the truck, but you must plan charging time and space. Internal combustion trucks refuel quickly and hold steady power through long shifts, but they bring emissions, noise, and fuel storage. Compare operating cost over the life of the truck by weighing electricity or fuel against battery or engine maintenance, not just the purchase price.

Load Capacity, Lift Height, and Aisle Width

Start with your heaviest load, the highest rack beam you must reach, and the narrowest aisle the truck must turn in. Rated capacity is stated at a specific load center, commonly 24 inches, and attachments can reduce what the truck safely lifts. Also check the lowered mast height against your doorways.

New vs Used Forklifts

New trucks bring current features and a fresh warranty. Used and reconditioned trucks lower your upfront cost, so weigh hours of use, service history, mast and chain wear, tire condition, hydraulics, and battery health on electric models. Ask what inspection and reconditioning the seller performed, and review the warranty policy before you buy. If you plan to spread the cost, look at the available financing options.

OSHA Forklift Training and Certification by Class

Forklift classifications matter for workplace safety, regulatory compliance, and operational efficiency, and training is where those three meet. OSHA requires forklift operators to complete safety training, and the employer is responsible for making sure every operator can safely operate the truck they are assigned.

What OSHA Requires Before Anyone Operates a Forklift

Training is required before operating any powered industrial truck independently. Under 29 CFR 1910.178(l), your training program must combine formal instruction, practical training, and an evaluation of operator performance in the workplace. Formal instruction can include lectures, video, written material, or interactive computer learning. Practical training includes demonstrations and hands on exercises. Trainees may operate a truck only under direct supervision until they complete the program. An online course or final exam can cover the classroom portion, but it cannot replace hands on practice and an evaluation at your site. If your team includes operators more comfortable in Spanish, choose a program offered in both English and Spanish.

Why Training Is Specific to the Truck Type

OSHA bases required training on the types of trucks the operator will use and the hazards in your workplace. Operating a Class I truck does not automatically qualify someone on a Class II reach truck or a Class V diesel truck, because controls, load handling, and potential hazards differ. Training also covers the operator manuals for each truck, plus load charts and the truck's stated limits.

Refresher Training and Reevaluation

OSHA requires an evaluation of each operator at least once every three years. Refresher training is needed sooner when an operator is seen driving unsafely, is involved in an accident or near miss, or fails an evaluation. It is also needed when an operator is assigned a different type of truck or when workplace conditions change in a way that affects safe operation.

Employer Responsibilities

Your business must train, evaluate, and certify each operator. The certification records the operator's name, the training date, the evaluation date, and who performed the training or evaluation. Trainers must have the knowledge, training, and experience to teach operators and judge their skills. OSHA does not issue forklift licenses, so certification comes from you as the employer.

Forklift Safety and Inspection Basics

OSHA standards set the baseline, and daily habits keep your people safe. These basics apply across every class, and they build on the ANSI safety standards that OSHA's rules grew out of. Clean travel paths help too, and well maintained refurbished floor sweepers keep debris out of your aisles.

Pre Shift Inspection Checklist

OSHA requires trucks to be examined at least daily, and after each shift when used around the clock. Take any truck with an unsafe condition out of service. Check these items each time:

• Forks for cracks, bends, and uneven wear
• Mast, chains, and hydraulic hoses
• Tires for damage and proper condition
• Brakes and steering
• Horn, lights, and any warning devices
• Seat belt or operator restraint
• Fluid, fuel, or battery leaks under the truck

Reading the Nameplate and Load Capacity

Every truck carries a data plate that lists its rated capacity and other key specs. Operators must know that number and never exceed it. Capacity drops as the load center moves outward or when an attachment is added, so read the nameplate and the truck's load chart before lifting an unfamiliar load.

Battery and Fuel Safety

Charge batteries in designated areas with good ventilation, and keep sparks and open flames away. Handle spilled electrolyte carefully and wear the protective gear your program calls for. For LP gas or other fuels, refuel in designated areas with the engine off, and follow the handling rules in your safety program.

Shop Forklifts at PS Janitorial

PS Janitorial's forklift lineup includes electric, LP gas, and diesel trucks, listed by rated capacity, lift height, and power type, with used and reconditioned trucks sourced on request. We also supply refurbished floor cleaning machines and deep cycle batteries for the rest of your facility. If you do not see the class you need, contact us with your load, lift height, and aisle width.

Forklift Classes FAQs

These quick answers cover the questions we hear most about forklift classes.

How many forklift classes are there?

There are seven classes. They are Class I electric rider trucks, Class II electric narrow aisle trucks, Class III electric hand trucks, Class IV internal combustion cushion tire trucks, Class V internal combustion pneumatic tire trucks, Class VI tractors, and Class VII rough terrain trucks.

What is the most common forklift class?

No official ranking of the classes by popularity exists. Counterbalanced forklifts are the most familiar design, and they appear in Classes I, IV, and V. The best way to find your most common class is to look at what your own floor, loads, and fuel supply call for.

Which forklift classes are best for indoor use?

The electric classes, I through III, are the best fit indoors because they produce no exhaust at the truck. Class IV cushion tire trucks also work indoors on smooth floors when you have proper ventilation.

Is a pallet jack considered a forklift class?

A pallet jack is not its own class, but it falls under Class III. Class III covers electric hand trucks and hand rider trucks, which includes walk behind and rider pallet jacks.

Do I need separate certification for each forklift class?

OSHA bases training on the type of truck an operator will use, so an operator needs training and evaluation for each truck type they run. Moving to a different type of truck triggers refresher training, which ties back to the training section above.

Is a telehandler a forklift?

A telehandler is a lifting truck with a telescoping boom, and industry classification places it in Class VII with other rough terrain forklift trucks. It differs from a standard forklift because the boom extends forward and upward instead of raising a mast straight up.