What types of wood are specified for making these crates?

The code recommends coniferous timbers like Fir, Spruce, and Kail, or other suitable species agreed upon, free from major defects (Clause 3.1).

What are the standard internal dimensions for a 20 kg crate?

For a Type 1 crate with a nominal capacity of 20 kg, the internal dimensions are 450 mm (length) x 300 mm (width) x 300 mm (height) as per Table 1.

Is preservative treatment for the wood mandatory?

No, it is not mandatory. However, if required by the purchaser for increased durability, it shall be done in accordance with IS 401 (Clause 3.1.2).

What information should be marked on the crate?

Each crate should be marked with the manufacturer's name or trademark and the type of crate (e.g., 'Type 1') as per Clause 7.

IS 7698

: 1983

returnable wooden crates for vegetables

CurrentSpecializedSpecificationMaterials Science · Timber and Timber Stores

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This standard specifies the requirements for materials, dimensions, and construction of returnable wooden crates intended for the transportation and storage of vegetables. It aims to standardize crate sizes for better handling, stacking, and durability, covering various types based on capacity.

returnable wooden crates for vegetables

Quick Reference Values

Maximum permissible moisture content20 percent

Minimum thickness of battens and planks10 mm

Nominal capacity of Type 1 crate20 kg

Internal dimensions of Type 1 crate450 x 300 x 300 mm

Minimum number of wire nails per joint2

Practical Notes

Ensure timber is properly seasoned (moisture content below 20%) to prevent warping and fungal growth.

Check for splinters, sharp edges, and protruding nails to avoid damage to the produce and injury to handlers.

The 'returnable' nature of the crate necessitates robust construction, especially at the corner joints, to withstand multiple use cycles.