Types of plastic pallets explained
What each type does, how they differ, and which one is right for your operation.
Published July 9, 2026
By John Anderson, Owner of Verde Trader
10+ years buying and selling used industrial packaging.
Key takeaways
- Three main structural types: rackable, stackable, and nestable - each designed for a different storage and handling need.
- Deck style matters: open deck, solid top, and perforated deck pallets are suited to different loads, industries, and cleaning requirements.
- Entry points vary: 2-way entry limits forklift access; 4-way entry works from any side and is the most common in U.S. warehouses.
- Material and construction method: most plastic pallets are injection molded from HDPE or polypropylene, which affects weight, durability, and price.
- Export pallets are a distinct category: lightweight, one-trip designs that are ISPM-15 exempt and built to clear customs without fumigation.
Rackable pallets
A rackable pallet is built to span the beams of a pallet rack system without sagging or failing under load. The structure distributes weight across the full length of the pallet so the deck stays rigid when supported only at two or four points on the rack beams - not along its entire bottom surface. This is the most common plastic pallet type in U.S. distribution and warehousing.
Most are injection molded from high-density polyethylene (HDPE) with reinforced runners or a block-style understructure to handle the concentrated stress of rack storage. The trade-off is weight and cost - rackable pallets are heavier and more expensive than nestable or export designs, and they are not efficient to stack empty for return shipping.
If your pallets go into a beam rack, this is the type you need. A pallet that is not rated as rackable should never be placed on rack beams - deck failure under load is a real risk.
We carry both new and used rackable plastic pallets in standard 48x40 and 48x48 footprints.
Nestable pallets
A nestable pallet is shaped so that empty units drop into one another rather than stacking flat. The tapered legs or runners allow one pallet to sit inside the cavity of the one below it, which dramatically reduces the height of an empty stack. Research shows that at the same stack height, you can fit roughly 1.7 times more nestable plastic pallets than standard wooden stackable pallets - a significant freight cost advantage when moving empties.
That space efficiency is why nestable designs dominate applications where pallets travel empty in one direction: retail distribution, e-commerce fulfillment, and export shipping. They are also well suited for pharmaceutical and food applications where moisture resistance matters, since plastic does not absorb water or harbor pests the way wood can.
Nestable pallets are not rackable. The tapered leg design that makes them nest efficiently also makes them unsuitable for beam rack storage. If you need both, you need two pallet types or a hybrid stackable-rackable design.
Browse nestable plastic pallets for sale on Verde Trader.
Stackable pallets
A stackable pallet is designed to support weight when loaded units are placed directly on top of each other. The top deck transfers load through the pallet structure to the floor rather than relying on rack beams. This makes them the right choice for floor storage, block stacking, and warehouses that do not use racking systems.
Stackable plastic pallets come in solid-top and open-deck configurations - solid for small or irregular goods, open for cold storage and drainage. One important distinction: a pallet rated for a high static load in block stacking may still perform poorly in a rack, because the stress distribution is different. Always confirm the rack load rating separately if you plan to use the same pallet in both applications.
Browse stackable plastic pallets for sale on Verde Trader.
Export pallets
Export pallets are built around one core advantage: they are exempt from ISPM 15 phytosanitary treatment requirements. Under ISPM 15, all wood packaging used in international trade must be treated - either by heat treatment or methyl bromide fumigation - to prevent the spread of invasive pests before crossing a border. Plastic pallets require no such treatment, which removes treatment costs, scheduling delays, and customs complications from the shipping process entirely.
Export plastic pallets are typically lightweight, often made from polypropylene or recycled HDPE, and engineered for single-trip or limited-trip use. The design prioritizes low cost per trip and easy nesting for the return journey over the heavy-duty durability of a long-cycle reusable pallet. They are a one-way investment for most international shipments where pallet recovery is not practical.
Conventional heat treatment of wooden pallets requires large kilns using fossil fuels. Methyl bromide fumigation emits a gas with significant ozone depletion potential. Plastic export pallets skip both processes - which is the primary reason buyers choose them for international shipments, not just the convenience.
Browse plastic pallets for sale on Verde Trader.
2-way vs. 4-way entry
Entry configuration describes how many sides a forklift or pallet jack can access the pallet from. It is a practical detail that gets overlooked until it creates a warehouse bottleneck.
- 2-way entry. Forks can only enter from two opposite sides. The understructure on the other two sides is solid or blocked. Stringer-style pallets work this way - the stringers run the full length between the deck boards and provide additional support over the span, but they close off two sides to forklift access. Common where forklifts always approach from the same direction.
- 4-way entry. Forks can enter from any of the four sides. Block-style pallets use individual corner and center blocks to support the deck, leaving all four sides open. This is the most flexible configuration and the most common in U.S. plastic pallet applications - it is also required for most pallet rack and conveyor systems where pallets are moved in multiple orientations. Injection molding makes producing consistent block configurations straightforward, which is why 4-way entry dominates in plastic.
Types of plastic pallets at a glance
Use this table to compare the main plastic pallet types by their primary use case, typical construction, and key limitation. Deck style (open, solid, perforated) and material (HDPE vs. polypropylene) apply across all types - see the dedicated posts on those topics for a deeper look.
Source: Pulgar & Oliveira, Springer (2023); Anil et al., Journal of Industrial Ecology (2020); Weththasinghe et al., Journal of Cleaner Production (2022).
Frequently asked questions about plastic pallet types
Can one pallet be both rackable and nestable?
Not in the traditional sense. The structural requirements pull in opposite directions - rackable pallets need a rigid, reinforced understructure to span rack beams, while nestable pallets need tapered legs that allow units to drop inside each other. Some manufacturers produce hybrid stackable-rackable designs that offer moderate rack ratings alongside decent stack density, but these are a compromise. If your operation genuinely needs both, run the load numbers before assuming a hybrid pallet will hold up in your specific rack configuration.
What is the difference between a static load rating and a rack load rating?
A static load rating tells you how much weight a pallet can support sitting flat on the floor with the load evenly distributed across the full deck. A rack load rating tells you how much it can support when spanning two beam rails, with weight concentrated over the unsupported middle span. The rack rating is almost always lower than the static rating for the same pallet - sometimes significantly. Always check the rack load rating specifically if you are putting pallets in beam storage. The static number alone does not tell you whether a pallet is safe in a rack.
Are used plastic pallets worth buying, or should I always buy new?
Used plastic pallets are worth buying for most standard warehouse and distribution applications. Plastic does not rot, splinter, or absorb moisture the way wood does, so a used plastic pallet in good condition performs very similarly to a new one. The main things to check are deck integrity - no cracks running across load-bearing sections - and runner condition on rackable pallets. A cracked runner on a rackable pallet is a safety issue and should be rejected. For food-grade or pharmaceutical applications with strict traceability requirements, new pallets may be required by your compliance program regardless of condition.
Do plastic pallets work with standard pallet jacks?
Yes, with a caveat on entry type. A standard pallet jack requires enough clearance under the deck for the forks to enter and tilt up. Most 4-way block pallets and 2-way stringer pallets are compatible. Where buyers run into trouble is with low-profile nestable pallets - some designs have shallow entry openings that work with forklifts but are too tight for the wheels and forks of a manual pallet jack. Check the entry height and fork pocket dimensions on the spec sheet before ordering if pallet jack compatibility is a requirement in your facility.
Can I mix plastic pallet types in the same warehouse?
Yes, and many operations do. A common setup is rackable pallets for beam storage and nestable pallets for floor-level receiving or outbound shipping where return density matters. The main thing to manage is making sure pallets do not end up in the wrong application - particularly preventing nestable pallets from being placed in a rack. Many facilities use different colors for different pallet pools for exactly this reason. Plastic pallets are available in a wide range of colors, which makes visual differentiation practical.
How do I know if a plastic pallet is GMA spec?
GMA spec refers to the 48x40 inch footprint standardized by the Grocery Manufacturers Association, which is the most common pallet size in U.S. grocery and consumer goods supply chains. A GMA-spec plastic pallet meets that footprint and is typically a 4-way block design built to handle standard unit loads in that industry. If a seller or spec sheet references GMA, confirm the actual dimensions are 48x40 and that the rack load rating matches your requirement - the GMA label describes the size standard, not a load certification.
What happens to a plastic pallet at the end of its life?
Unlike wood, a damaged plastic pallet cannot be repaired by replacing boards or nailing it back together. When a plastic pallet reaches end of life, the material needs to be melted down and remolded to be reused. The upside is that closed-loop recycling back into new pallets is possible, and both HDPE and polypropylene are recyclable materials. Some pallet pooling programs specifically collect end-of-life pallets for this purpose. If you have a large volume of worn-out plastic pallets, Verde Trader buys used plastic pallets and can help route them appropriately.
Sources
The pallet type definitions and structural characteristics on this page draw from peer-reviewed life cycle and materials research. Product experience from buying and selling plastic pallets informed the practical notes on use cases and limitations.
Industry standards
- ANSI MH1-2021. The primary U.S. standard for pallets and related equipment. Covers pallet definitions, dimensions, load capacity ratings including static, dynamic, and rack load classifications referenced throughout this post.
- ASTM D1185-98a(2025). Standard test methods for pallets and related structures used in materials handling and shipping. The basis for how pallet load ratings are tested and compared across types.
- ISO 8611 Parts 1-3. International standard for flat pallets used in materials handling. Covers test methods, performance requirements, and maximum working loads - the global reference for pallet structural classification.
Peer-reviewed research
- Anil et al., Journal of Industrial Ecology (2020). Life cycle assessment comparing wooden and plastic pallets in the grocery industry. Source for pallet trip assumptions, HDPE injection molding process details, and ISPM 15 treatment context cited in the export pallets section.
- Weththasinghe et al., International Journal of Life Cycle Assessment (2021). LCA comparison of wooden, plastic, and wood-polymer composite pallets. Source for the nestable space efficiency figure - 1.7 times more plastic pallets fit at the same stack height versus wooden stackable pallets - and the 66-cycle expected lifetime range for plastic pallets.
- Koci, Science of the Total Environment (2019). Life cycle model for wood and plastic pallets including production method comparisons. Source for recycled plastic pallet input ratios and the end-of-life remolding process described in the FAQ.
- Pulgar and Oliveira, Springer (2023). Review of production and material types for pallets. Source for the comparative pallet design table including roto-molded, injection molded, stringer, block, solid deck, and double face characteristics used in the comparison table and type descriptions.
Regulatory reference
- Godley, Thin-Walled Structures (1997). Structural analysis of pallet rack beam design. Background source for the rack load rating explanation and why concentrated beam-point loading differs from static floor loading in the FAQ.
Verde Trader product experience
- Verde Trader sold-order data. Practical notes on used pallet condition, common pallet types in circulation, and buyer use cases on this page draw from our experience buying and selling plastic pallets. For current availability and pricing, browse plastic pallets for sale or request a quote.
