What is the standard size of a wood wool slab according to this code?

The standard size is 2000 mm in length and 500 mm in width.

Can wood wool slabs be used as structural elements?

No, they are specified strictly for non-load bearing applications such as partitions, ceilings, and cladding.

What type of binder is used in the manufacture of these slabs?

Inorganic binders are used, predominantly ordinary Portland cement or Portland pozzolana cement.

IS 3308

: 1981

Specification for wood wool building slabs

CurrentSpecializedSpecificationMaterials Science · Wood and Other Lignocellulosic Products

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This standard specifies the dimensions, manufacturing requirements, and physical properties of wood wool building slabs bonded with inorganic binders (like cement). It covers testing methods and requirements for weight, deflection, and suitability for thermal and acoustic insulation.

Specification for wood wool building slabs

Quick Reference Values

Standard length2000 mm

Standard width500 mm

Standard thicknesses15, 20, 25, 40, 50, 75 mm

Tolerance on length and width± 5 mm

Tolerance on thickness± 2 mm

Practical Notes

Wood wool slabs are primarily used for acoustic treatment, thermal insulation, and lightweight non-load-bearing partitions.

These slabs are susceptible to moisture; ensure proper weather protection during storage and installation.

Do not use these slabs for structural load-bearing applications.