Plywood Density

Plywood Density VS Timber Density

The Density of Plywood is higher than the density of the timber species used to manufacture the veneers . Because there is a compression process in the production of plywood. The pressing machines will compress the veneers under high pressure.

Density of PLYWOOD and Density of Core Veneers

The components of plywood is : face veneer, core veneers and back veneers. The weight  of face/back veneers of plywood practically much less than the weight of core veneers. So the density of plywood is mainly depended on the timer species of the core veneers .

The density of different plywood

Usually 4 kinds of timber species are used to manufacture the cores of plywood ( film faced plywood ) , i.e. birch, hardwood, pine and poplar. The density of different plywood is listed as follows:

 

PLYWOOD (FILM FACED PLYWOOD) DENSITY (KG/M3 or KG/CBM)
Birch Plywood (Core is birch species) Birch Film Faced Plywood	ABOUT 680~760
Rubber Plywood (Core is rubber)	ABOUT 700~780
Hardwood Plywood  (Eucalyptus core ) Hardwood film faced plywood	ABOUT 580~660
PINE CORE PLYWOOD FILM FACED PLYWOOD	ABOUT 570~630
Poplar Plywood Poplar Film Faced Plywood	ABOUT 530~580
Conifer Plywood	ABOUT 470-520

 

Sometimes, buyers order combi core plywood , such as combined poplar/hardwood, combined birch/poplar and so on . The density of combi plywood is depended on the components of core . Usually, the density of combi core plywood is about 550~650 KG/CBM .

However,  suppliers usually name the plywood by using name of the species of face/back veneers . For example, Birch plywood can have a poplar core or combi core. In this case, the density of the birch plywood with poplar core will be about 580~620KG/CBM . Only full birch plywood can have a density of ABOUT 680~760 kg/CBM.