When comparing block pallets vs. stringer pallets, the difference is not simply how the pallet looks underneath. The construction affects how material-handling equipment can approach the pallet, how the load is supported, how the pallet interacts with storage systems, and whether the design fits the requirements of the receiving facility.
Stringer and block pallets are two primary classes of wood pallet construction used in the United States. A stringer pallet uses long structural members called stringers between its deck components. A block pallet uses blocks positioned between the upper and lower portions of the pallet. The National Wooden Pallet and Container Association recognizes both stringer-class and block-class pallets, along with different deck and entry configurations within each class.
Neither design is automatically the better pallet. An operation that moves a familiar product through a predictable warehouse setup may have very different requirements from a facility that needs greater access from several directions or a pallet built around unusual product dimensions.
The useful question is therefore not simply, “Are block pallets better than stringer pallets?” It is:
Which pallet construction fits the product, handling equipment, storage method, receiving requirements, and way the pallet will actually be used?
What Is the Difference Between Block Pallets and Stringer Pallets?
The main difference between a block pallet and a stringer pallet is the structural system supporting the deck and the resulting entry arrangement for material-handling equipment.
A stringer-class pallet uses longitudinal stringers as structural members. A basic unnotched stringer pallet provides full handling access from two ends. Stringers can also be notched, creating openings that allow certain equipment to approach from the sides. Under NWPCA terminology, this is considered partial four-way entry rather than the same unrestricted entry associated with some four-way block designs.
Block pallets use blocks between deck components instead of relying on continuous stringers in the same way. Block-class designs are commonly associated with four-way handling, although the exact entry style can still depend on how the bottom deck is constructed. That detail matters because pallet terminology should not replace an actual pallet specification.
Here is the comparison in simple terms:
| Factor | Stringer Pallet | Block Pallet |
| Primary support structure | Longitudinal stringers | Individual support blocks |
| Basic entry configuration | Full two-way entry; notched versions can provide partial four-way entry | Commonly configured for four-way handling |
| Handling flexibility | Depends on stringer and notch configuration | Often selected where access from several directions matters |
| Available designs | Many sizes, deck arrangements, and specifications | Many sizes, deck arrangements, and specifications |
| Best choice | Depends on load, equipment, storage, and receiving requirements | Depends on load, equipment, storage, and receiving requirements |
This distinction also shows why buyers should avoid choosing a pallet based on the words “block” or “stringer” alone. Pallet size, lumber, board placement, fasteners, deck construction, intended load, and support conditions can all change how a finished pallet performs.
What Is a Stringer Pallet?
A stringer pallet gets its name from the structural boards that run along the pallet and support its deck. These members create the framework that separates the upper and lower portions of the pallet and provides openings for handling equipment.
Stringer pallets are familiar throughout North American material-handling operations, and many common wood pallet configurations use stringer construction. The widely recognized 48 × 40-inch footprint is often associated with stringer pallets, but size and construction class are not the same thing. Both stringer-class and block-class pallets can be manufactured in a 48 × 40-inch footprint.
An unnotched stringer pallet normally provides full entry from its two ends. Notches can be cut into the stringers to create side access, but buyers should confirm how their actual forklifts, pallet jacks, conveyors, or other equipment will interact with those openings rather than assuming every “four-way” description means the same thing.
Stringer construction may work well when the pallet specification is already familiar to the facility, the equipment has suitable access, and the receiving customer accepts that design. The deciding factor should always be the complete application rather than the construction name by itself.
What Is a Block Pallet?
A block pallet uses individual blocks as part of the structure supporting the deck. These blocks are positioned at multiple points under the pallet and work with other pallet components to create the finished platform.
One of the reasons businesses compare stringer vs. block pallets is handling access. Block-class pallets are commonly designed so material-handling equipment can approach from multiple directions. The NWPCA’s industry environmental product declaration identifies handling access as the primary functional distinction between stringer- and block-class pallet assemblies: block pallets are generally designed for full four-way handling, while basic stringer pallets have full access on two sides and may use notches for partial four-way access.
Demcor includes block pallets among its pallet product offerings. For a business considering block construction, the conversation should still include more than pallet class. Product dimensions, approximate weight, handling equipment, storage conditions, transportation, receiving requirements, and expected use all help determine the appropriate specification.
Does Four-Way Entry Mean a Block Pallet Is Always Better?
No. More handling access can be useful, but that does not make a block pallet the right choice for every application.
Imagine a warehouse where loaded pallets always enter and leave from the same orientation. Forklift operators already have clear access from the required sides, the existing pallet specification works with the facility, and the receiving customer expects that configuration. Switching pallet classes simply to gain another entry direction may not solve a real operating problem.
Now consider a different facility where pallets frequently need to be approached from several directions in tight staging areas. In that situation, handling access may deserve much more attention.
The point is not that one construction wins. It is that entry style should match the actual material flow inside the operation.
Before changing pallet construction, review how pallets are picked up at production lines, moved into storage, placed into trailers, unloaded at the destination, and handled by the receiving customer. A pallet can work well at one stage and still create problems somewhere else if its entry configuration does not match the equipment being used.
How Handling Equipment Affects the Decision
Forklifts and pallet jacks are often part of a pallet-selection discussion, but they are not the only equipment that matters.
Some facilities also use conveyors, pallet dispensers, automated equipment, racks, lift tables, or other systems with defined dimensional and clearance requirements. A pallet that enters one facility without difficulty may not necessarily fit every downstream system.
This is why buyers should tell their supplier what equipment will handle the pallet before finalizing a specification.
For example, an operation should know whether side entry is regularly needed, whether a pallet jack must enter from a particular direction, and whether the pallet must move through equipment with fixed openings. If racking is involved, the pallet’s support conditions also need to be understood.
Changing from a stringer pallet to a block pallet does not automatically resolve every equipment issue. The complete pallet design still needs to match the system.
Are Block Pallets Stronger Than Stringer Pallets?
It is better not to judge pallet strength from the class name alone.
Block and stringer pallets can both be designed for different applications and load conditions. NWPCA documentation recognizes both light-duty and heavy-duty examples within stringer and block categories, which illustrates why construction class by itself does not establish one universal load capacity.
Actual pallet performance can be affected by dimensions, component sizes, lumber characteristics, fasteners, deck arrangement, load distribution, handling method, storage support, pallet condition, and other design details.
This matters when a business is moving heavy or unusually shaped products. The total weight is only one part of the specification. Where that weight sits on the pallet can matter as well.
A uniformly distributed load of packaged goods creates a different support condition from a piece of equipment that places most of its weight on a few small contact areas. In cases like these, a custom pallet design may be more appropriate than selecting a standard block or stringer configuration based only on a general description.
Consider the Product Footprint, Not Just the Weight
Pallet selection should begin with the product.
A buyer should know the approximate length, width, height, and weight of the load, along with how the product will sit on the pallet. Product overhang, concentrated contact points, unusual shapes, and uneven weight distribution can all affect the pallet specification.
This becomes especially relevant when a standard pallet footprint does not fit the load well.
An oversized machine component, a long manufactured product, or another unusually shaped item may need support in places where a standard deck does not provide it. In that case, the more useful question may no longer be simply “block pallet vs. stringer pallet.” The operation may need a pallet designed around the product itself.
Demcor offers custom design pallets for applications where standard configurations may not address the product’s dimensions or handling requirements.
Check Your Customer’s Receiving Requirements
The pallet does not stop being part of the process when it leaves your dock.
Receiving customers may have their own pallet specifications. These requirements can address dimensions, construction, entry style, condition, treatment, or other details that affect how freight moves through their facility.
A pallet that works perfectly inside your own warehouse may still be unsuitable if the destination requires another format.
Before changing pallet types, review purchase orders, vendor requirements, shipping specifications, or other instructions supplied by the receiver. If the requirements are unclear, confirming them before ordering pallets can prevent unnecessary changes later.
This is especially useful when a business ships to multiple customers. One operation may find that a single pallet specification works across most shipments, while another may need different pallet configurations for different receiving environments.
Block vs. Stringer Pallets and Standard Pallet Sizes
Pallet size and pallet construction are related decisions, but they are not interchangeable.
For example, the 48 × 40-inch footprint is the most common pallet size in the United States, according to NWPCA industry documentation. That footprint can appear in different pallet classes and designs. A buyer should therefore avoid assuming that every 48 × 40 pallet has identical construction or handling characteristics.
When requesting pallets, it is more useful to communicate the complete requirement:
48 × 40 describes the footprint.
Block or stringer describes part of the construction.
Entry style describes how handling equipment can access the pallet.
Additional specifications describe deck arrangement, components, materials, treatment requirements, and other details.
Keeping those terms separate makes purchasing conversations clearer.
When Should You Consider a Custom Pallet Instead?
The choice between block and stringer construction is not always limited to existing standard pallets.
A custom pallet may be worth discussing when the product does not fit a common footprint, when weight is concentrated in unusual areas, when handling equipment creates specific clearance requirements, or when the customer has a written pallet specification that cannot be met by the standard options available.
Before discussing a custom design, gather practical information about the load. Demcor’s product guidance asks buyers to consider product dimensions and approximate weight, how the product will be positioned, whether it will be stacked, what equipment will handle it, how it will be transported and stored, and whether the pallet will be used once or repeatedly. These are the kinds of details that give the pallet supplier a much clearer picture of the job.
The goal should not be to create a custom pallet simply because customization is available. A standard pallet may be the right option when it already fits the product and operation. Custom design becomes relevant when the application introduces requirements that a standard configuration does not address well.
Questions to Ask Before Choosing Block or Stringer Pallets
Instead of beginning with “Which pallet is better?” purchasing and operations teams can begin with the conditions the pallet must meet.
Consider how the product sits on the pallet and whether its weight is evenly distributed. Look at how employees approach loaded pallets with forklifts or pallet jacks. Confirm whether the pallet will be placed in racks, moved across conveyors, staged on the floor, stacked, or handled through another system.
Then look beyond your own facility. Ask whether the receiving customer requires a particular pallet construction or size and whether the pallet will make one trip, move repeatedly between facilities, or remain within a controlled internal process.
Those answers give a pallet supplier more useful information than simply requesting “a heavy-duty pallet” or “a four-way pallet.”
Which Is Right for Your Operation: Block Pallet or Stringer Pallet?
For many businesses, the decision comes down to compatibility.
A stringer pallet may be appropriate when its entry configuration, dimensions, and construction fit the existing equipment and shipping process. A block pallet may be considered when its construction and handling access better suit how products move through the operation.
Neither choice should be made from construction style alone.
The product being carried, where its weight is concentrated, how the pallet is lifted, how it is stored, what the destination accepts, how often the pallet will be used, and whether standard dimensions fit the application should all be part of the discussion.
If those requirements cannot be addressed effectively with an available standard pallet, custom design provides another option.
Discuss Your Pallet Requirements With Demcor
Founded in 2011, Demcor is a family-owned pallet manufacturing and recycling business based in Newport, Tennessee.
Demcor’s product offerings include Standard GMA pallets, reconditioned and recycled pallets, heat-treated pallets, custom design pallets, combo pallets, block pallets, and crates. Businesses comparing different types of wood pallets can discuss their product dimensions, handling environment, storage method, receiving requirements, and expected use with the Demcor team before selecting a pallet configuration.
Whether an operation needs a familiar Standard GMA pallet, a block pallet, or a pallet designed around a particular product, the starting point should be a clear specification.
The right pallet is the one that fits how the product actually moves.
Frequently Asked Questions
What is the main difference between a block pallet and a stringer pallet?
The main difference is the support structure. Stringer pallets use longitudinal stringers, while block pallets use individual blocks as part of the supporting structure. This construction also affects how handling equipment can enter the pallet.
Are stringer pallets two-way pallets?
Basic unnotched stringer pallets provide full entry from two ends. Notched stringers can create side openings and are classified as partial four-way entry under NWPCA terminology. Buyers should therefore check the actual entry configuration rather than assuming all stringer pallets provide exactly the same access.
Are block pallets four-way pallets?
Block pallets are commonly associated with four-way handling, but the exact entry style depends on the pallet’s construction, particularly the bottom-deck configuration. Confirm the actual specification when handling access is important.
Are block pallets stronger than stringer pallets?
Not automatically. Both block-class and stringer-class pallets can be designed for different load conditions. Load capacity depends on the complete pallet specification rather than construction class alone.
Can block and stringer pallets both be 48 × 40 inches?
Yes. The 48 × 40-inch measurement describes the pallet footprint, not whether it is block- or stringer-class. Industry documentation includes both block and stringer designs in that footprint.
When should a business consider a custom pallet?
A custom pallet may be worth discussing when product dimensions, weight distribution, handling equipment, storage conditions, or receiving requirements do not fit an available standard configuration.
What information should I give a pallet supplier before ordering?
Start with the required pallet dimensions, product dimensions and approximate weight, product position on the pallet, handling equipment, storage method, transportation conditions, receiving requirements, expected quantity, and how the pallet will be used. The more clearly the application is described, the easier it is to discuss an appropriate pallet specification.
