pallet.design

40 × 40 pallet: dimensions, weight and specs

Summary

A 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.

Modeltypical build
Type
Wood stringer
Footprint
40.00 × 40.00 in
Height
4.75 in
Lumber
12.7 bd ft
Est. weight
55 lb (25 kg)
Fasteners
84
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Dimensions

Inches40 × 40 in
Millimetres1016 × 1016 mm
Centimetres101.6 × 101.6 cm
Feet3.33 × 3.33 ft
Footprint area11.11 sq ft (1.032 m²)

Pallets per floor (single stacked)

EquipmentStraightTurnedBest
53 ft dry van303030
48 ft dry van282828
26 ft box truck141414
20 ft container101010
40 ft container222222
45 ft high cube262626

Straight = length along the trailer. Floor positions only, with no gaps for load bars or overhang. Weight often limits first. Open the calculator

The 40 × 40 in pallet (1016 × 1016 mm) is a square North American pallet size associated mainly with the dairy industry. It uses the same 40 in deckboard length as a 48 × 40 with shorter 40 in stringers.

What are the dimensions of a 40 × 40 pallet?

A 40 × 40 pallet is 40 in (1016 mm) on each side. Overall height is usually about 4.75 to 5 in (121 to 127 mm). Because it is square, the drawing should show which way the stringers run so entry sides and notches are clear.

Typical build at 40 × 40

Component Typical spec
Top deckboards 7 boards: 2 × 5-1/2 in + 5 × 3-1/2 in, 5/8 in thick, 40 in long
Bottom deckboards 5 boards, same widths
Stringers 3 × 1-3/8 × 3-1/2 × 40 in
Entry Partial 4-way if notched, 2-way if not
Overall height 4.75 in with 5/8 in decks

On a 40 in stringer, two standard 9 in notches leave less solid wood between them than on a 48 in stringer, so some 40 × 40 designs skip the notches and stay 2-way. Dairy loads that live in coolers and wash areas may also call for kiln-dried lumber to limit mold. Start from the GMA template and set the length to 40 in in the designer.

How much does a 40 × 40 pallet weigh?

The build above has about 12.7 board feet, which gives estimated weights of about 27 lb (12 kg) in dry softwood, 37 lb (17 kg) in kiln-dried hardwood and up to about 56 lb (25 kg) in green hardwood. See pallet weight.

How much weight can a 40 × 40 pallet hold?

Shorter stringers make a stiffer pallet for the same lumber, but the rating still depends on the design, the load type and the support condition (floor, forklift or rack). Ask for static, dynamic and racked ratings from the manufacturer, based on a PDS analysis or ASTM D1185 testing. See pallet load capacity.

Who uses 40 × 40 pallets?

  • Dairy: milk crates, cases and cultured products. See dairy.
  • Other square loads: some beverage, bagged and component loads that fit a 40 in square without overhang.

Many dairy operations also use 48 × 40 pallets, especially for shipments to grocery DCs, so confirm which size your customer receives.

Fit in trucks and containers

Two 40 × 40 pallets side by side take 80 in of trailer width, which leaves 18 in or more unused in a 53 ft dry van. The table above shows the counts for trailers and containers. In ISO containers the 40 in width fits two across with more room to spare than a 48 × 40 turned.

Specifying a 40 × 40 pallet for a quote

  1. Size and stringer direction.
  2. Entry: notched (partial 4-way) or unnotched (2-way).
  3. Deckboard count, width and thickness, top and bottom.
  4. Lumber species and moisture (kiln-dried for cold, wet storage).
  5. Load weight, stacking height and racking.
  6. ISPM 15 if exported.

The RFQ checklist covers the full list.

Frequently asked questions

What is a 40x40 pallet used for?

It is best known as a dairy pallet, and it is also used for other square loads that would overhang a 40 in wide pallet on only one axis. Check your customer's spec, since dairy practice varies by processor.

How much does a 40x40 pallet weigh?

A 3-stringer build with 7 top and 5 bottom boards uses about 12.7 board feet, which is roughly 27 lb in dry softwood up to about 56 lb in green hardwood (estimates).

Is 40x40 an ISO pallet size?

No. The ISO 6780 square sizes are 1067 × 1067 mm (42 × 42 in), 1100 × 1100 mm and 1165 × 1165 mm. 40 × 40 is a North American size.

Sources and references

Related

More in North American sizes

Last reviewed 2026-09-24. 576 words.