Made from 100% natural Aspen wood fibers, Excelsior is an age-old favorite for creating a custom fit when packing oddly-shaped, delicate items like serving pieces, figurines and sculpture. It also makes a wonderful filler for gift baskets, creative packaging containers and gift boxes.
I am packing gift boxes (16inx12inx4in) of food filled glass jars, not for shipping, and need to know how to determine how much of the material is needed for each, since I don't know the density factor.
To calculate the volume (cubic inches) of your box, you need to multiply width x length x depth. One 16" x 12" x 4" box is 768 cu. in. So, each of your boxes should be able to hold two packages of Natural Excelsior plus the glass jars you wish to pack.