Will My Pallet Work With a Pallet Truck? 550 mm vs 685 mm Fork Width Explained
A pallet's outside size does not tell you whether a pallet truck will fit. The useful measurements are the clear fork-entry width and height, plus the path the load wheels must travel under the pallet.
Quick answer: choose 550 mm or 685 mm from the pallet's usable opening, not from its overall 1200 × 800 mm, 1200 × 1000 mm or other outside dimensions. Then check whether any bottom runner can block the load wheels.
Guide by the Risenmega material-handling team, based on common pallet-truck fitment issues reported by warehouse customers. Last updated: [2026.08.31].
Key Takeaways
- Compare against the pallet's usable fork-entry opening, not its outside 1200 × 800 mm or 1200 × 1000 mm footprint.
- 550 mm and 685 mm describe the overall width across both forks, not the width of a single fork.
- Three-runner pallets usually clear more easily than picture-frame or grid-bottom pallets.
- A pallet truck also needs room for its load wheels to reach the floor, not just space for the forks.
- "4-way forklift entry" does not automatically mean a pallet truck can enter from all four sides.
- Send Risenmega your clear opening, entry height and an underside photo for a fast compatibility check.
What Does 550 mm or 685 mm Fork Width Mean?
For this comparison, 550 mm and 685 mm refer to the overall width across the two forks—from the outside edge of one fork to the outside edge of the other. It is not the width of a single fork.
A narrower 550 mm fork set leaves more lateral clearance inside a narrow pallet opening. A 685 mm fork set spreads the support points farther apart, but it also needs a wider usable entry space.
Three-Runner vs Picture-Frame Pallets
The pallet bottom is often more important than the number printed on the pallet. The two structures below are common examples.
Three-runner pallet
Three longitudinal runners usually create two relatively clear channels for the forks and load wheels. That makes many three-runner pallets easier to handle with a pallet truck.
Picture-frame / grid-bottom pallet
A perimeter frame and cross runners can add bottom support, but those cross members may sit directly in the path of the pallet truck's load wheels. Compatibility must be checked from the underside.
Why a Forklift Can Work When a Pallet Truck Does Not
A forklift and a pallet truck do not support the load in the same way. A forklift mainly needs its forks to enter under the pallet and lift it.
A pallet truck has small load wheels near the fork tips. As the truck enters, those wheels must travel under the pallet and reach the floor. If a bottom cross runner sits in that path, the forks may enter but the truck still cannot move into the correct lifting position.
This is why “4-way forklift entry” should not automatically be read as “4-way pallet-truck compatible.”
The fork opening may look large enough, but the load-wheel path can still be blocked farther under the pallet.How to Check Your Pallet in 3 Steps
Measure clear entry width
Measure the usable space between runners or blocks in the direction the pallet truck will enter. Compare this with the overall fork width.
Measure entry height
Check the smallest vertical opening from the floor to the pallet deck or lowest obstruction. The lowered forks need enough room to enter freely.
Follow the wheel path
Look farther under the pallet. A cross runner, reinforcing rib or closed bottom section can stop the load wheels even when the front opening is wide enough.
Measure the usable opening first, compare it with the overall fork width, then inspect the path of the load wheels.550 mm vs 685 mm: Which Fork Width Should You Choose?
| Point to compare | 550 mm overall fork width | 685 mm overall fork width |
|---|---|---|
| Opening needed | Narrower usable entry width | Wider usable entry width |
| Side clearance | Usually leaves more clearance in a given opening | Leaves less clearance in the same opening |
| Support position | Forks sit closer together | Forks sit farther apart |
| Best choice when | Your pallet opening is relatively narrow or you need more entry clearance | Your pallet has a clearly wider entry opening and the wider fork position matches the load |
| Still need to check | Entry height, bottom runners, wheel path, fork length and the exact machine specification | |
Fork dimensions can vary by pallet-truck or stacker model. Confirm the exact specification of the machine you plan to order rather than applying one fork width to every model.
Compatibility Checklist Before You Order
If you want a reliable answer, collect these details before choosing the machine:
-
Overall pallet size
Length × width × height. -
Usable fork-entry width
Measure the clear opening, not the outside pallet width. -
Minimum entry height
Measure the lowest point the fork must pass under. -
Bottom photo
A clear underside photo shows runners and cross members. -
Entry direction
Tell us which side the pallet truck needs to enter from. -
Typical load
Include load weight and how the load sits on the pallet.
Frequently Asked Questions
Can a picture-frame plastic pallet be used with a pallet truck?
Sometimes. The front opening may accept the forks, but the load wheels must also pass the bottom cross runners. Check the underside and wheel path before ordering.
Does “4-way entry” mean a pallet truck can enter from all four sides?
Not necessarily. “4-way entry” may describe forklift access. A pallet truck also needs enough room for its load wheels to travel under the pallet.
Is 550 mm always better because it is narrower?
No. A narrower fork set can provide more entry clearance, but the correct width should match the pallet opening, load support requirement and the machine's approved configuration.
How do I know whether I need 550 mm or 685 mm forks?
Measure the usable entry width first. If 685 mm does not have sufficient working clearance, choose the narrower configuration when it is suitable for the machine and load. Then check entry height and the load-wheel path.
What should I send Risenmega to confirm pallet compatibility?
Send the pallet's overall dimensions, clear entry width and height, intended entry direction, approximate load weight and one clear photo of the pallet underside. That is usually enough for an initial compatibility check.
Not Sure Whether Your Pallet Will Fit?
Send us your pallet dimensions and one underside photo. We can help you compare the opening with the available fork configuration before you place an order.
