Wooden pallet height is one of those details that seems minor until it causes a problem. Whether you are loading a trailer, configuring warehouse racking, or planning a shipment in a standard container, the exact height of your pallets determines how much product you can stack, how efficiently you use vertical space, and whether your loads fit through automated handling systems without incident.
This guide covers the standard heights for the most common pallet types, the construction factors that cause height variations, and practical advice for ensuring your pallets match your operational requirements.
Standard Wooden Pallet Heights
The height of a wooden pallet depends on its design, the regional standard it follows, and the materials used in its construction. Most standard pallets fall within a height range of 5 to 7 inches, with the majority clustering around 6 inches.
In North America, the GMA pallet—the most common pallet in the United States and Canada—stands approximately 6 inches (150 mm) tall. This measurement accounts for the combined thickness of the top deck boards, the stringers or blocks that form the pallet's structural frame, and the bottom deck boards.
Heights by Regional Standard
European EUR/EPAL pallets have a standard height of approximately 144 mm (5.7 inches). These pallets use a block construction with nine blocks arranged in a 3×3 pattern, topped by deck boards. The slightly lower profile compared to the GMA pallet reflects differences in European truck and container dimensions.
Australian standard pallets (1165 × 1165 mm) typically stand around 150 mm (5.9 inches) tall. Asia-Pacific pallets (1100 × 1100 mm) vary more widely, with heights ranging from 130 to 160 mm depending on the manufacturer and intended application.
Factors That Affect Pallet Height
While standards provide nominal heights, actual pallet dimensions can vary based on several construction and material factors.
Deck Board Thickness
The top and bottom deck boards are the horizontal surfaces that contact the load above and the floor or racking below. Standard deck boards range from 5/8 inch (16 mm) to 3/4 inch (19 mm) in thickness. Some heavy-duty pallets use full 1-inch deck boards for added strength, which adds approximately 3/4 inch to the overall pallet height compared to standard construction.
The number of deck boards also matters. A pallet with seven top deck boards provides a more continuous load surface than one with five, but the additional boards do not change the height—they affect weight capacity and load distribution instead.
Stringer Pallets vs. Block Pallets
Stringer pallets use two or three long boards running the length of the pallet as their primary structural members. Standard stringer dimensions are 1.5 inches wide by 3.5 inches tall, though heavy-duty versions may use 4-inch or even 4.5-inch stringers. The stringer height is the single largest contributor to overall pallet height.
Block pallets use solid wood blocks—typically 3.5 × 3.5 inches or 4 × 4 inches—at nine points across the pallet. Block pallets with 4-inch blocks and standard deck boards typically stand 6 to 6.5 inches tall, slightly higher than comparable stringer designs.
Wood Species and Moisture Content
Hardwood pallets made from oak, maple, or beech can achieve the required strength with thinner components, potentially reducing overall height by a fraction of an inch compared to softwood pallets made from pine, spruce, or fir. In practice, most manufacturers use standard component dimensions regardless of species, so the height difference is minimal.
Moisture content has a more noticeable effect. Green (freshly cut) lumber is slightly thicker than kiln-dried wood due to its higher water content. As pallets made from green lumber dry over weeks or months, they may shrink by 1/16 to 1/8 inch in total height. For applications requiring precise dimensions, specifying kiln-dried or heat-treated lumber ensures consistency.
Custom-Built Pallets
When standard heights do not meet operational requirements, custom pallets offer a solution. Low-profile pallets as thin as 3 to 4 inches are used in air freight and retail display applications where minimizing pallet height maximizes usable cargo or shelf space. These designs typically use thinner stringers and deck boards, trading some load capacity for a reduced footprint.
Heavy-duty pallets for industrial applications may reach 7 to 12 inches in height, using oversize stringers or blocks and thick deck boards to support loads measured in tons rather than hundreds of pounds.
Pallet Height Comparison Table
| Pallet Type | Height (inches) | Height (mm) | Construction |
|---|---|---|---|
| GMA (North America) | ~6.0 | ~150 | Stringer, 3-stringer design |
| EUR/EPAL (Europe) | ~5.7 | ~144 | Block, 9-block design |
| Australian Standard | ~5.9 | ~150 | Stringer or block |
| Asia-Pacific 1100×1100 | 5.1–6.3 | 130–160 | Varies by manufacturer |
| Low-profile custom | 3.0–4.0 | 76–102 | Thin stringer, reduced deck |
| Heavy-duty industrial | 7.0–12.0 | 178–305 | Oversized stringer or block |
How Height Relates to Weight Capacity
Pallet height and load capacity are closely linked because taller structural components—stringers and blocks—provide greater resistance to bending under load. A standard 3.5-inch stringer can support a static load of approximately 2,500 pounds evenly distributed. Increasing the stringer depth to 4.5 inches can raise that capacity significantly, often to 4,000 pounds or more.
However, height alone does not determine strength. Wood species, grain orientation, fastener type and placement, and the number and spacing of deck boards all contribute to a pallet's overall load rating. Two pallets of identical height but different construction can have vastly different weight capacities.
Dynamic load ratings—the weight a pallet can safely support while being moved by a forklift—are typically 60–75% of the static rating. Racking load ratings, which apply when the pallet spans between two support beams, are lower still, often 50–60% of the static figure. Always verify load ratings with your pallet supplier for your specific use case.
Stacking and Storage Considerations
When planning vertical storage, calculate the total stack height by adding the pallet height to the loaded product height for each level. In a standard trailer with 110 inches of interior clearance, two stacked pallets with products must fit within that space. If each pallet is 6 inches tall and carries a 48-inch load, the total for two stacks is 108 inches—leaving just 2 inches of clearance.
Warehouse racking systems require a clearance margin of 4 to 6 inches above each pallet position to allow for safe forklift placement and retrieval. When configuring beam heights, account for the maximum expected pallet height plus load height plus this clearance factor.
For floor stacking without racking, the maximum number of pallets that can be safely stacked depends on both the bottom pallet's compression strength and the stability of the loaded units. Most standard pallets should not be stacked more than two to three high when loaded, depending on the product type and securing method.
Practical Tips for Measuring Pallets
Measure pallet height at multiple points—center and all four corners—to identify any warping or inconsistency. Wooden pallets are natural products and can develop slight variations from moisture changes, load stress, or manufacturing tolerances.
Use a flat, level surface for measurement. Pallets measured on uneven concrete floors will give inaccurate readings. If precision matters for your application, take measurements on a calibrated surface plate or a known-flat area of your facility.
For incoming pallet shipments, establish an acceptance tolerance—typically plus or minus 1/4 inch from the specified height—and inspect a sample from each delivery. Consistent monitoring catches manufacturing drift before it causes problems in your storage or handling systems.
Document the actual measured heights of the pallets you use regularly. Having this data on file makes it easier to configure racking, plan trailer loads, and communicate specifications to suppliers when reordering or switching vendors.