In industry wood joints are being substituted
for new quicker and cheaper methods of fixing
wood together. The commercial move towards flat
pack furniture has encouraged the use of these
Nails are used to improve very weak joints but
they can rust within the timber. Nails on wood
joints are often used with glue to improve the
joints strength. Nails are often used for quick
fix’s such as fixing backs of cupboards
and general building and DIY work. Nails and pins
are usually made of mild steel and come in many
types e.g. – panel pins, veneer pins, oval
nails and round nails. Putting nails in at an
angle or dovetailing the nails makes a stronger
joint. Nails are useful for fixing woods to woods.
The nails above are put in
on an angle (dovetailing) to make the joint stronger.
Screws are often used with glue to improve joints
strength. A screw is at its strongest when used
across the grain. There are many types of screws
but the most popular are the cross-head screws
as they are easier to fix in by hand or using
an electric screwdriver. Screws can come with
flat heads or cross heads. Flat headed screws
if counter sunk will run flush with the wood.
This means that the screw will be neat and not
obvious to see. Screws are useful for fixing woods
to woods or metal or plastic to woods.
Knock down fittings
Knock down (KD) fittings are mainly used within
flat pack furniture or for assembly by the user.
They are used within kitchen units or self-assembly
furniture. Knock down (KD) fittings are often
plastic fittings which can be joined together
with one screw or bolt. A simple knock down fitting
is a 'block joint'. Block joints are simply plastic
blocks that take screws in different directions.