Hardboard is produced by converting wood into fibers
(defibering) and then reconstructing the fibers into panels.
The American Hardboard Association defines hardboard
as: “panel manufactured from inter-felted lignocellulosic
fibers which are consolidated under heat and pressure in
a hot-press to density of 31 pounds per cubic foot or greater.”
Specifying and purchasing hardboard is a detailed and precise
process that needs expert guidance to avoid the well-known
bureaucratic morass of the import world, and to avoid costly
mistakes in overbuying and underbuying of product. With over
50 years of experience, you can trust Holland Southwest to
provide high quality hardboard at the best possible price. |
Here are the primary characteristics of hardboard panels:
- Surface is classified as either smooth one sided (S1S)
or smooth two sides (S2S)
- Generally 4’ wide and 8’ long, though presses from
5’ x 16’ and larger exist. New technology 4’-8’ wide
continuous presses are now common
- Thickness can vary from as thin as 1/10” to as thick
as 7/16”.
- Industry standards require that the lengths of the face
diagonals vary by not more than 1/64” for each foot of
panel length; opposite sides of the panel may not vary in
length by more than 1/8”; and the edges of the panel must
be straight, within 1/64” for each foot of length or width.
- Moisture content may vary between 2% and 9%, but
the variance may not be more than 3% within any
one shipment.
- Hardboard conforming to industry standard is easily
identifiable, as the panel is marked with a colored
vertical stripe (or stripes).
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