Pallets for the chemical and plastics industry
Summary
Chemical 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.
- Type
- Wood block
- Footprint
- 1200 × 1000 mm
- Height
- 144 mm
- Lumber
- 21.0 bd ft
- Est. weight
- 92 lb (42 kg)
- Fasteners
- 104
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Chemical and plastics producers ship some of the hardest loads a pallet carries: steel drums, pails, IBC totes and stacks of 25 kg (55 lb) bags. These loads are heavy, dense and concentrated. They also go to customers with automated plants, and they cross borders. The industry responded with its own pallet standards (the CP series) and with heavier builds of common sizes.
Which pallets does the chemical industry use?
| Pallet | Size | Construction or typical load |
|---|---|---|
| CP1 | 1000 × 1200 mm | Block pallet, runner (skid) bottom |
| CP2 | 800 × 1200 mm | Block pallet, runner bottom |
| CP3 | 1140 × 1140 mm | Block pallet, runner bottom |
| CP4 / CP5 | 1100 × 1300 / 760 × 1140 mm | Block pallets, runner bottom |
| CP6 / CP7 | 1200 × 1000 / 1300 × 1100 mm | Perimeter or frame bottom |
| CP8 / CP9 | 1140 × 1140 mm | Frame bottom; CP8 has a top-deck opening, CP9 a flush overlap bottom |
| 48 × 48 in drum pallet | 1219 × 1219 mm | Four 55-gal drums, bulk bags |
| 42 × 42 in | 1067 × 1067 mm | Paint, coatings, pails |
| 44 × 44 in | 1118 × 1118 mm | Drums, chemicals |
| 48 × 42 in | 1219 × 1067 mm | Chemicals |
| Heavy 48 × 40 in | 1219 × 1016 mm | Bagged resin and chemicals to North American customers |
| Spill pallets | Drum-sized | Storage with secondary containment, not transport |
CP dimensions come from the Uniform Standard's Annex A. See CP pallets for construction details. CP pallets are typically built to tight dimensional tolerances because they feed automated filling and warehouse lines.
Common requirements
- Deck gaps and thickness. Drum chimes and pail rims must not drop between boards. Drum decks commonly use 3/4 in (19 mm) or thicker boards with small gaps (reported at under about 0.8 in, 20 mm, by some suppliers). The 48 × 48 drum template uses four stringers and tight gaps.
- Load type. Drums and bags are concentrated loads that bridge poorly. Rate the pallet for the actual load, not a uniform load.
- Automation. Chemical plants often run pallets through conveyors, palletizers and stretch hooders. Tolerances, flatness and bottom deck design (runners or perimeter) must match the equipment.
- ISPM 15. Exports need HT-marked wood pallets, or exempt plastic, metal or presswood pallets.
- Moisture and contamination. Wet pallets can stain bags; contaminated pallets must not be reused for food-grade or pharmaceutical-grade chemicals.
- Plastic pallets for closed loops, IBC bases and corrosive environments, where wood absorbs spills.
Typical loads and weights
| Load | Typical gross weight per pallet (estimates) |
|---|---|
| Four 55-gal steel drums of a water-like liquid | About 2,000 to 2,100 lb including drums and pallet; denser liquids more |
| 40 to 60 bags of 25 kg (55 lb) resin or powder | About 2,200 to 3,300 lb |
| IBC tote (about 275 gal, 1,000 L) filled | About 2,000 to 3,000 lb depending on density |
| Pails of paint or coatings | 1,500 to 2,500 lb |
Always calculate from your own packages and density. Double-stacking in trailers and racking in warehouses multiplies the demand on the bottom pallet.
Common pitfalls
- Grocery-grade pallets under drums. 5/8 in deckboards with wide gaps crack under drum chimes.
- Stringer orientation. Drums placed over a gap between stringers load only the deckboards. Place stringers or blocks under the drum footprint.
- Wrong CP type. CP1 to CP5 have runner bottoms and limited pallet-jack entry. Plants that use pallet jacks from all sides need a frame bottom (CP6 to CP9 style).
- Bag slippage. Bagged loads on smooth plastic or wet wood slip; use anti-slip sheets or specify a rougher deck.
- Overhang of bags. Bags hanging over the edge tear in racking. Match the pallet to the bag pattern.
- Mixing spill pallets and transport pallets. Spill pallets are for storage and are not built to be shipped loaded.
Spec checklist for a quote
- Pallet standard or size: CP type, 48 × 48 drum, 42 × 42, or custom
- Load: package type (drums, pails, IBC, bags), count and layout, maximum gross weight
- Deck: board thickness, maximum gap, solid deck if needed
- Base: runners, perimeter, or stringers; entry requirements for forklifts and pallet jacks
- Automation: conveyor direction, tolerances, flatness
- Racking and stacking conditions
- Material: wood species or plastic; chemical resistance if plastic
- ISPM 15 HT for export
- Moisture content maximum
- Quantity and delivery
Start from the CP1 template or the 48 × 48 drum template and adjust the deck and base to your load.
Frequently asked questions
What is a CP pallet?
One of nine standardized block pallet designs (CP1 to CP9) developed for the European chemical and plastics industries. CP1 is 1000 × 1200 mm with a unidirectional (runner) bottom, CP3 is 1140 × 1140 mm, and CP9 is 1140 × 1140 mm with a flush overlap bottom.
What pallet size is used for 55-gallon drums?
48 × 48 in (1219 × 1219 mm) holds four 55-gal drums in a square. The deck needs tight gaps and thicker boards because drum chimes put concentrated loads on individual boards.
Are pallets covered by hazardous materials packaging rules?
The pallet is not itself UN-certified packaging, but the drums, IBCs or bags on it are, and the load must be secured so the packages stay intact in transport. Check the carrier and hazmat rules for your goods.
Why do chemical pallets need heavier decks?
Drums, pails and bags concentrate weight on small areas or narrow lines instead of spreading it. A deck that is fine under cartons can crack or deflect under a drum chime.
Sources and references
- Uniform Standard for Wood Pallets, Annex A (CP pallet dimensions) (Woodpack Global, formerly NWPCA)
- ISPM 15, Regulation of wood packaging material in international trade (IPPC)
Related
- TypesCP pallets (CP1 to CP9): dimensions, construction and usesCP pallets are nine standardised wooden block pallets (CP1 to CP9) designed for the European chemical and plastics industry. They range from 760 × 1140 mm to 1300 × 1100 mm. CP1 to CP5 are 138 mm (5.4 in) high with bottom boards in one direction; CP6 to CP9 are 156 mm (6.1 in) high with perimeter or full-frame bottoms.
- TypesDrum pallet: 48 × 48 pallets for four 55-gallon drumsA drum pallet is a heavy-duty pallet sized to carry 55-gallon (208 L) drums, most often a 48 × 48 in (1219 × 1219 mm) square pallet holding four drums. It needs tight deckboard gaps so drum chimes cannot drop between boards, and extra stringers because four filled drums can weigh about 2,000 lb (900 kg) or more.
- TypesSpill pallet: sump capacity, drum counts and EPA containment rulesA spill pallet is a platform with a grated deck over a sump that catches leaks from drums or IBCs stored on it. Common four-drum models hold about 66 gal (250 L) and carry about 5,000–6,000 lb; IBC models hold about 385–400 gal. Sump size follows rules such as EPA 40 CFR 264.175.
- Sizes48 × 48 pallet (drum pallet): dimensions, weight and specsA 48 × 48 in pallet (1219 × 1219 mm) is the standard drum pallet. It holds four 55-gallon drums in a 2 × 2 pattern and is also common for bulk bags and totes. Typical builds use 4 stringers and 3/4 in top decks, and weigh roughly 45 to 90 lb.
- Sizes42 × 42 pallet: dimensions, weight and specsA 42 × 42 in pallet (1067 × 1067 mm) is a square pallet used mainly for paint and coatings, telecom equipment and chemicals. It is one of the six ISO 6780 footprints. The usual build is a 3-stringer wood pallet about 4.75 to 5 in tall.
- Sizes44 × 44 pallet: dimensions, weight and specsA 44 × 44 in pallet (1118 × 1118 mm) is a square North American size used for drums, bulk bags (FIBCs) and chemicals. It fits two across an ISO shipping container, which a 48 × 48 does not. Typical wood builds are 3 or 4 stringers, about 4.75 to 5 in tall.
- GlossaryConcentrated loadA concentrated load is a load that bears on one or a few small areas of the pallet deck instead of spreading over it, such as drums, machinery feet or a coil. It usually gives a much lower safe load than the same weight spread evenly.
- TypesCP pallets (CP1 to CP9): dimensions, construction and usesCP pallets are nine standardised wooden block pallets (CP1 to CP9) designed for the European chemical and plastics industry. They range from 760 × 1140 mm to 1300 × 1100 mm. CP1 to CP5 are 138 mm (5.4 in) high with bottom boards in one direction; CP6 to CP9 are 156 mm (6.1 in) high with perimeter or full-frame bottoms.
More in Industries
- 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.
- 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 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 dairy: milk, cheese, butter and dairy ingredientsDairy 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.
Last reviewed 2026-09-24. 820 words.