Woodworking Tips When Working With Plywood
Of all types of engineered wood, plywood is one of the most
common. Plywood is made out of thin sheets of wood veneer. The
veneer sheets are bonded through heat, pressure and strong
adhesives. The more the veneer sheets bonded together, the
thicker the plywood.
Like any other type of engineered wood, there are techniques
on how to work properly with plywood.
Here are some wood working tips when dealing with
plywood.
Avoid cross-cutting, or cutting across the grain, when
cutting plywood. Plywood is more likely to chip if you
cross-cut. It is better to cut along the length of the grain to
avoid plywood chipping.
Another great woodworking tip when cutting plywood is to
score a line first. This creates a much cleaner and crisper cut
than cutting the plywood immediately with a saw. Scoring can be
done with a knife or the tip of the saw.
It is also a good idea to put masking tape on the line where
you will cut the sheet of plywood. This will prevent the wood
fibers on the edge when you saw through the cut line.
Let’s talk about another property of plywood. Because any
type of wood is porous and can absorb moisture, it expands.
This holds true to plywood and presents a problem especially
when you are dealing with precise measurements.
Here is a good woodworking tip to compensate for plywood
expansion. Give an allowance of 1/8 of an inch on the frame or
structure where the plywood is to be installed. When water
causes the plywood to expand, the extension will accommodate,
minimize or totally eliminate the gap left by the
allowance.
An additional woodworking tip to ameliorate plywood
expansion is to nail plywood securely to a wooden structure or
backing. The nails should be 3/8 of an inch away from edges of
the plywood. Finally, take note that spacing of the nails is
important. Woodworking experts recommend that nails should be
spaced no more than 6 inches apart.
To reduce plywood expansion, it is also a good idea to coat
it with waterproof finishes. Shellac and varnish are examples
of good waterproof coats. However, there are now a lot of
waterproof-treated sheets that are available in the lumber
store. Always check with the lumberyard and select waterproof
plywood.
It is also a good idea to use oil-based finishes on plywood
to eliminate fuzz. If, after applying finishes, the fuzz is
still present, remove it by rubbing the surface lightly with
fine grade sandpaper.
These woodworking tips should let you work on plywood with
ease. If you want to try it out for yourself, take a look at my
woodworking plans.
|