Pallets for dairy: milk, cheese, butter and dairy ingredients
Summary
Dairy uses 40 × 40 in pallets, the size traditionally linked to dairy in North America, and 48 × 40 in pallets for retail DCs. Plants are cold, wet and washed down, so plastic is common inside and wood must arrive dry. Much fluid milk moves in stacked crates on dollies or pallets.
Dairy combines three things that are hard on pallets: cold, wet and fast. Products are kept at refrigerated temperatures from filler to store, plants wash down daily, and fluid milk has a shelf life measured in days, so pallets move quickly and often. The result is a mix of square dairy pallets, standard grocery pallets, plastic pallets and dollies.
Which pallets does dairy use?
| Pallet | Size | Use |
|---|---|---|
| Square dairy pallet (wood or plastic) | 40 × 40 in | Milk crates, dairy-to-store and dairy DC systems |
| Pooled or white-wood pallet | 48 × 40 in | Cased dairy (yogurt, cheese, butter, cream) to retail DCs |
| Plastic pallets (rackable or hygienic) | 48 × 40, 40 × 40, 1200 × 800 mm | Coolers, processing, washdown areas |
| Dollies and crate stacks | Crate footprint | Fluid milk direct store delivery, often without a pallet |
| Heavy wood or plastic pallets | 48 × 40, 48 × 48 in | Cheese blocks and barrels, powder in 25 kg bags, butter |
| Export pallets | ISPM 15 HT wood or plastic | Milk powder, cheese and butter exports |
The 40 × 40 in size is widely associated with dairy in North America, but cased dairy sent to grocery DCs usually travels on 48 × 40 in pallets like other grocery. Check what your customers' DCs handle.
Common requirements
- Cold and wet service. Coolers run near freezing with high humidity. Wood should arrive dry (for example under 19% moisture content) to limit mold. Plastic avoids the issue but its ratings change with temperature; ask for ratings at your cooler or freezer temperature.
- Sanitation. The FDA Sanitary Transportation rule applies to temperature-controlled food, so pallets used for dairy must be suitable, cleanable and sanitary. Plant food safety plans often keep wood out of processing areas. See hygienic plastic pallets.
- Racking in coolers. Cooler space is expensive, so dairy DCs rack high. Rackable plastic or strong wood block pallets with a stated racking load are needed.
- Retailer programs. Cased dairy to grocery follows the same retailer rules as other grocery; see grocery.
- Fire code. Plastic pallets in racked coolers still need UL 2335 or FM 4996 listings to be treated as wood.
Typical loads and weights
| Load | Typical gross weight (estimates) |
|---|---|
| Milk crates of gallon jugs (4 per crate, about 35 to 40 lb per crate) | About 1,500 to 2,500 lb per pallet, depending on stack height |
| Cased yogurt, cream, butter | About 1,000 to 2,000 lb |
| Cheese blocks (40 lb and 640 lb blocks) and barrels | 1,500 to 2,500 lb and more; concentrated loads |
| Milk powder, 25 kg bags | About 2,200 to 2,800 lb |
Liquid dairy is dense, like other beverages. Heavy cheese blocks and barrels are concentrated loads: check the pallet rating for the load type, not only the weight.
Common pitfalls
- Green wood in coolers. Mold grows on pallets and can transfer to cases.
- Crates overhanging a 48 × 40 pallet. Crate patterns designed for 40 × 40 do not fit 48 × 40 without overhang or gaps.
- Plastic pallets without cold ratings. Plastic becomes more brittle in freezers; impact damage increases.
- Recycled pallets of unknown history in a food plant.
- Mixed pallet types in automated coolers. Automated storage needs consistent pallets; mixing 40 × 40 and 48 × 40 causes faults.
Spec checklist for a quote
- Footprint: 40 × 40 in, 48 × 40 in or metric; entry type
- Material: plastic (rackable or hygienic, cold rating) or wood (species, kiln dried, maximum moisture content)
- Use area: processing, cooler, freezer, distribution
- Load: crates, cases, cheese blocks or bags; maximum gross weight
- Racking condition and beam span; stacking height
- Sanitation requirements (washable, no cavities)
- Fire listing for plastic
- ISPM 15 HT for export
- Pooled or owned; closed loop or one way
- Quantity and delivery schedule
Model a dairy pallet by changing the footprint of the GMA 48 × 40 template to 40 × 40 in, or start from the rackable plastic template to request plastic.
Frequently asked questions
What is a dairy pallet?
In North America the term usually means a 40 × 40 in (1016 × 1016 mm) square pallet. The square footprint is usually explained by square milk-crate patterns, though many dairies also ship on 48 × 40 in pallets to fit retailer systems.
Are wood pallets allowed in dairy plants?
No federal rule bans them, but many dairy plants keep wood out of processing and wet areas and use plastic there, because wood absorbs moisture, is hard to sanitize and can grow mold in cold, damp rooms.
Why do dairy pallets get moldy?
Cold rooms and coolers have high humidity and condensation. Wood that is wet or green when it arrives stays damp and grows mold. Specify dry wood, or use plastic in cold areas.
Sources and references
Related
- Sizes40 × 40 pallet: dimensions, weight and specsA 40 × 40 in pallet (1016 × 1016 mm) is a square North American size associated with the dairy industry. It is usually a 3-stringer wood pallet about 4.75 in tall, weighing roughly 27 to 56 lb depending on species and moisture.
- Sizes48 × 40 pallet (GMA): dimensions, weight and specsA 48 × 40 in pallet (1219 × 1016 mm) is the North American standard, also called the GMA pallet. The typical build is a partial 4-way stringer pallet about 4.75 in tall with 7 top and 5 bottom deckboards on 3 notched stringers. Pooled 48 × 40 block pallets (CHEP, PECO) share the same footprint.
- TypesPlastic pallets: types, materials, load ratings and how to buy themA plastic pallet is a molded or fabricated pallet made from HDPE or polypropylene. Types range from light nestable pallets (about 14–30 lb) to reinforced rackable pallets (about 35–70 lb). They are washable, ISPM 15 exempt and long-lived, cost several times more than wood, and carry three separate load ratings.
- TypesHygienic plastic pallet: closed decks for food and pharmaA hygienic plastic pallet has a closed, smooth top deck and a closed bottom, with no hollow cavities where dirt, water or bacteria can collect. It is made from virgin HDPE or PP, designed to be washed, and used in food processing, meat, dairy, bakery and pharmaceutical plants.
- GuidesPallet mold: causes, prevention and what to do with moldy palletsPallet mold grows when wood stays above about 20% moisture in warm, still air: green pallets in containers, wrapped loads or covered yards. The fix is dry wood: specify kiln-dried pallets (19% or less), store them dry and ventilated, and check moisture before loading. HT alone does not prevent mold.
- IndustriesPallets for food and beverage manufacturingFood companies run two pallet systems: hygienic plastic or aluminum inside wet and open-product areas, and 48 × 40 in wood or pooled pallets for cased goods. The FDA Sanitary Transportation rule requires suitable, cleanable, sanitary pallets but does not mandate a material.
- StandardsFSMA Sanitary Transportation rule: what it means for palletsThe FDA Sanitary Transportation rule (21 CFR Part 1, Subpart O, published 2016) lists pallets as transportation equipment. Food pallets must be suitable, cleanable, sanitary and stored to prevent contamination. It does not ban wood or require plastic, a set material or "FDA-approved" pallets.
- TypesRackable plastic pallet: runners, reinforcement and racking ratingsA rackable plastic pallet is designed to sit in open-beam racking with nothing underneath. It has runners (3, 5 or 6) or a perimeter or cruciform base, often with steel reinforcement. Racking ratings for 48 × 40 in models are typically about 1,500–4,400 lb, valid only at the tested span and orientation.
More in Industries
- IndustriesPallets for grocery and consumer goodsGrocery runs on the 48 × 40 in pallet: GMA-style stringer pallets or pooled block pallets (CHEP, PECO, iGPS plastic). Retailers set the rules in vendor guides: footprint, entry, condition, height, weight and labels, and some accept pooled pallets only. Check each retailer's current guide.
- IndustriesPallets for pharmaceutical and healthcare productsPharmaceutical plants keep wood out of cleanrooms and GMP areas and use hygienic plastic (closed deck, washable) or aluminum there. Finished goods ship on 48 × 40 in or 1200 × 800 mm wood or plastic pallets to meet distribution, cold-chain and customer rules. The quality system, not a law, sets the material.
- IndustriesPallets for the chemical and plastics industryChemical loads (drums, pails, IBCs and 25 kg bags) need heavier, tighter-decked pallets than grocery. Europe uses the CP1 to CP9 block pallets; North America uses 48 × 48 in drum pallets, 42 × 42 and 44 × 44 in sizes and heavy 48 × 40s. Deck gaps and load type matter as much as weight.
- IndustriesPallets for the automotive industryAutomotive supply chains run on returnable plastic pallets, bulk containers and steel racks that cycle between suppliers and plants. OEM packaging guidelines set the footprints; 48 × 45 in is a common automotive size in North America. One-way wood pallets and ISPM 15 crates cover service parts and export.
- IndustriesPallets for beverages: water, soft drinks, beer and spiritsA pallet of bottled water commonly weighs 2,100 to 2,500 lb, and canned drinks and beer 1,500 to 2,200 lb. Most North American beverage loads ship on 48 × 40 in pooled or GMA-style pallets, plus 48 × 20 in half pallets for store delivery. Stiff decks, tier sheets and good wrap prevent crushed loads.
- IndustriesPallets for fresh produceFresh produce ships mainly on 48 × 40 in pallets in North America, many of them pooled block pallets. Pallets must survive wet cooling, cold storage and long reefer hauls and let cold air flow through the load. Imported produce, including from Mexico, needs ISPM 15 treated and marked wood pallets.
Last reviewed 2026-09-24. 716 words.