Determining the specific gravity of wood

A method of ascertaining the specific gravity of wood is to submerge the wooden billet in water and divide the length of the submerged part by the total length of the billet.

Alternatively, you can use the widget below to calculate the specific gravity for you. Be sure to measure the dimensions and weight as precisely as possible. Typical results range from 0.38 - 0.45 for spruce and 0.50 - 0.60 for maple.

The dimensions are input in millimeters, the weight in grams. The widget first calculates the surface = ((a+c)/2)*b, then the volume = ((surface+surface)/2)*d and finally specific gravity = weight/volume.

a	b	c	d	Weight