Choosing an electric stacker is not only about lifting capacity and lift height. Fork width, fork length, fork spread, pallet dimensions, and load center all affect whether a stacker can safely and efficiently handle your pallets.
A common mistake is to check only whether the pallet is 1,200 mm or 1,000 mm long. In practice, the buyer should also check how the pallet openings are positioned, the distance between the forks, the fork length, and the rated load center of the electric stacker.
For example, an EPAL Euro pallet has a footprint of 800 × 1,200 mm, while EPAL also lists pallet formats such as 1,200 × 1,000 mm, 1,000 × 1,200 mm, 1,100 × 1,300 mm, and 1,140 × 1,140 mm.
This means the correct electric stacker should be selected according to the actual pallet dimensions used in your warehouse, not simply according to a nominal pallet name.
1. Why Does Electric Stacker Fork Width Matter?
The forks of an electric stacker must enter the pallet openings correctly and provide adequate support underneath the load.
A typical electric stacker may have:
Fork length: around 1,150 mm
Individual fork dimensions: approximately 180–190 mm wide
Adjustable fork outside width: approximately 560–680 mm
Rated load center: commonly around 500–600 mm, depending on the model
For example, one electric pallet stacker specification lists 1,150 mm fork length and 560/680 mm fork spread, while another model specifies 1,150 × 190 × 56 mm forks and 570/680 mm outside fork width.
These figures show why buyers should not ask only:
“What is the fork width?”
A better question is:
“What is the adjustable fork spread, fork length, and load center, and are they compatible with my pallet?”
2. What Pallet Dimensions Should You Check?
Before purchasing an electric stacker, record at least these six dimensions or specifications:
| Item | What to Check | Why It Matters |
|---|---|---|
| Pallet length | 800–1,300+ mm | Determines fork entry and load support |
| Pallet width | 600–1,200+ mm | Affects fork positioning |
| Pallet height | e.g. 144 mm | Determines fork entry clearance |
| Fork opening | Actual pallet opening | Must allow fork entry |
| Fork spread | e.g. 560–680 mm | Determines how the forks support the load |
| Load center | e.g. 500–600 mm | Directly affects rated capacity |
The pallet footprint alone is not enough.
For example, two pallets may both measure 1,200 × 1,000 mm externally but have different bottom-board layouts. Their fork-entry conditions can therefore be different.
3. Common Pallet Sizes for Electric Stackers
Several pallet dimensions are frequently encountered in warehouses and industrial logistics.
| Pallet Format | Typical Dimensions | Example Application |
|---|---|---|
| EPAL Euro pallet | 800 × 1,200 mm | European logistics |
| EPAL 2 | 1,200 × 1,000 mm | Industrial/logistics applications |
| EPAL 3 | 1,000 × 1,200 mm | Industrial handling |
| Half pallet | 800 × 600 mm | Retail and smaller loads |
| CP3 | 1,140 × 1,140 mm | Chemical/industrial applications |
| CP4 | 1,100 × 1,300 mm | Industrial loads |
EPAL's current product specifications list these pallet formats, including the 800 × 1,200 mm Euro pallet and 1,200 × 1,000 mm EPAL 2 pallet.
The EPAL Euro pallet is 800 × 1,200 × 144 mm and has a safe working load of 1,500 kg according to EPAL's specification.
However, the pallet's rated load does not mean a 1.5-ton electric stacker can automatically handle a 1,500 kg load in every operating condition. The stacker's rated capacity depends on its load center, lift height, mast configuration, and manufacturer specifications.
4. Fork Length Is Just as Important as Fork Width
Fork length is another important parameter that is sometimes overlooked.
Suppose an electric stacker uses:
1,150 mm forks
and the pallet is:
1,200 mm long.
This may be a normal configuration for handling a standard pallet, but the actual compatibility still depends on the direction in which the pallet is entered and the pallet's bottom construction.
For example, a 1,200 × 800 mm Euro pallet can be approached from different sides. The available fork-entry geometry changes depending on whether the forks enter along the 1,200 mm direction or the 800 mm direction.
Therefore, buyers should provide the supplier with:
Pallet length
Pallet width
Pallet height
Fork-entry direction
Bottom-board/opening dimensions
Maximum loaded weight
This information allows the supplier to check the actual configuration rather than making a decision based only on pallet footprint.
5. What Is Fork Spread?
Fork spread is the distance between the forks, normally measured according to the manufacturer's specified reference points.
For many electric stackers, the forks can be adjusted within a certain range.
For example:
Fork spread: 560–680 mm
means the forks can be positioned within that specified range.
This is useful when the same machine handles multiple pallet types.
However, a larger adjustable range does not automatically mean the machine can handle every pallet. The fork spread must correspond to the pallet's openings and load-support structure.
Example
Assume a warehouse uses:
Pallet size: 1,200 × 1,000 mm
Maximum load: 1,000 kg
Fork length: 1,150 mm
Required fork spread: approximately 560–680 mm
An electric stacker with adjustable forks in this range may be suitable if the pallet's bottom structure provides sufficient fork clearance and the rated capacity at the required load center is adequate.
The final selection should therefore be checked against the actual pallet drawing.
6. Load Center Can Be More Important Than Fork Width
The load center describes the horizontal distance from the vertical face of the forks to the center of the load.
A common specification is:
Load center: 500 mm
If a 1,000 kg load has its center of gravity approximately 500 mm from the fork face, the machine's rated capacity must be sufficient at that load center.
Consider this simplified example:
| Parameter | Example |
|---|---|
| Electric stacker rated capacity | 1,500 kg |
| Rated load center | 500 mm |
| Actual load | 1,300 kg |
| Actual load center | 500 mm |
| Lift height | 3,000 mm |
If all four parameters fall within the manufacturer's rated capacity table, the configuration may be suitable.
But if the same 1,300 kg load extends much farther forward and the effective load center becomes 700 mm, the available capacity may be lower.
Therefore:
Rated capacity + load center + lift height should always be considered together.
7. Case Example: Choosing an Electric Stacker for a 1,200 × 1,000 mm Pallet
Consider a warehouse handling packaged goods.
Customer requirements
Pallet size: 1,200 × 1,000 mm
Maximum load: 1,200 kg
Required lift height: 3,500 mm
Pallet type: reusable wooden pallet
Working environment: indoor warehouse
The buyer initially focuses on a 1.5-ton electric stacker.
However, the correct selection process should be:
Step 1: Check pallet dimensions
Confirm:
1,200 × 1,000 mm
Step 2: Check pallet entry
Determine whether the forks enter from the 1,200 mm side or the 1,000 mm side.
Step 3: Check fork length
For example:
1,150 mm
Step 4: Check fork spread
For example:
560–680 mm
Step 5: Check load center
For example:
500 mm
Step 6: Check capacity at required lift height
The machine should be checked against the manufacturer's capacity chart for:
1,200 kg load + 500 mm load center + 3,500 mm lift height.
This is more reliable than simply comparing “1.5 ton” with “1.2 ton load.”
8. Case Example: EPAL Euro Pallet
Suppose a European warehouse mainly uses EPAL Euro pallets.
The standard EPAL Euro pallet measures:
800 × 1,200 × 144 mm
and weighs approximately 25 kg, with a safe working load of 1,500 kg according to EPAL.
The warehouse needs to move:
Product weight: 900 kg
Pallet weight: 25 kg
Total lifted weight: approximately 925 kg
Pallet size: 800 × 1,200 mm
Required lift height: 3,000 mm
The buyer should therefore check whether the electric stacker:
accepts the pallet entry direction;
has sufficient fork length;
has suitable fork spread;
has adequate capacity at the required load center;
can safely lift approximately 925 kg to 3,000 mm.
The pallet's 1,500 kg safe working load is a specification of the pallet. It is not the capacity requirement for the stacker.
9. A Simple Formula for Initial Fork Compatibility
For a preliminary check, buyers can use the following logic:
Fork compatibility = pallet opening clearance + fork dimensions + fork positioning + load support
For example:
If the pallet opening is approximately 200 mm wide and the individual fork width is 180 mm:
200 mm − 180 mm = 20 mm
This leaves approximately 20 mm nominal clearance.
However, this is only a simplified dimensional check. Actual clearance should account for pallet manufacturing tolerances, fork thickness, fork positioning, damaged pallets, and the manufacturer's specifications.
For commercial purchasing, it is better to provide a pallet drawing or photographs showing the bottom structure to the stacker supplier.
10. Don't Forget the Pallet Bottom Structure
Two pallets with identical external dimensions can have different bottom structures.
This can affect:
Fork entry
Fork positioning
Load stability
Minimum fork height
Ability to enter from different sides
EPAL Euro pallets, for example, are designed for handling from all four sides and have structural features intended for efficient handling across logistics systems.
For non-standard pallets, buyers should not assume that the same handling configuration will work.
A simple pallet drawing showing the top, bottom, and side views can eliminate much of the uncertainty.
11. Fork Width vs. Pallet Width: A Common Misunderstanding
One of the most common purchasing mistakes is comparing:
fork width = pallet width
This is usually the wrong comparison.
For example:
Pallet width: 1,000 mm
Pallet length: 1,200 mm
Fork spread: 560–680 mm
There is no requirement for the total fork spread to equal the pallet's 1,000 mm width.
Instead, the forks need to enter the pallet correctly and support the load at appropriate positions.
The important dimensions are therefore the fork entry openings and support points, rather than simply matching the overall pallet width.
12. What Information Should You Send to an Electric Stacker Supplier?
For a faster and more accurate quotation, send the supplier the following information:
| Information | Example |
|---|---|
| Pallet size | 1,200 × 1,000 mm |
| Pallet type | Wooden pallet |
| Maximum load | 1,200 kg |
| Pallet weight | 25–30 kg |
| Required lift height | 3,500 mm |
| Fork entry direction | 1,200 mm side |
| Fork length | 1,150 mm preferred |
| Working environment | Indoor warehouse |
| Floor condition | Concrete |
| Daily working hours | 6–8 hours |
| Battery preference | Lead-acid / lithium, if applicable |
A photo of the pallet, especially the bottom side, is also useful.
For non-standard pallets, a dimensioned drawing is even better.
13. Electric Stacker Fork Width Checklist
Before purchasing an electric stacker, check these parameters:
Pallet
Pallet length
Pallet width
Pallet height
Pallet bottom structure
Fork-entry openings
Maximum loaded weight
Electric Stacker
Rated capacity
Load center
Fork length
Fork width
Adjustable fork spread
Maximum lift height
Minimum fork height
Overall width
Turning radius
Working Environment
Aisle width
Floor condition
Rack dimensions
Door width
Daily operating hours
Indoor or outdoor application
14. Key Takeaway
When choosing an electric stacker, do not select the machine based only on pallet length or overall pallet width.
The most important dimensions to check are:
pallet size → fork-entry opening → fork length → fork spread → load center → rated capacity → lift height.
For standard pallets such as the 800 × 1,200 mm EPAL Euro pallet or 1,200 × 1,000 mm pallet, many standard electric stackers may be configurable for the application, but the actual pallet construction and machine capacity must still be verified.
A practical purchasing rule is:
Send the pallet dimensions, bottom structure, maximum load, required lift height, and fork-entry direction to the supplier before confirming the electric stacker configuration.
This allows the supplier to recommend the correct fork length, fork spread, load center, and capacity rather than relying on pallet size alone.
FAQ
What is a typical electric stacker fork width?
There is no single universal fork width. Commercial electric stackers can use different fork dimensions and adjustable fork spreads. For example, published specifications include fork spreads around 560–680 mm and fork lengths around 1,150 mm.
Is a 1,150 mm fork suitable for a 1,200 mm pallet?
It can be suitable, depending on the pallet construction and fork-entry direction. The pallet footprint alone is not sufficient to confirm compatibility.
What pallet size is common in Europe?
The EPAL Euro pallet is 800 × 1,200 mm, with a height of 144 mm. EPAL also lists other industrial pallet formats, including 1,200 × 1,000 mm and 1,000 × 1,200 mm.
Does a 1.5-ton electric stacker always lift a 1,500 kg load?
No. The rated capacity must be evaluated together with the specified load center, lift height, mast configuration, and other manufacturer limits.
What should I provide when asking for an electric stacker quotation?
Provide the pallet dimensions, maximum load, pallet bottom structure, fork-entry direction, required lift height, working environment, and aisle width. A pallet photo or technical drawing can help the supplier verify the configuration.