a frame in this way is normally reserved for when the need is to fill
a given area. It is NOT a measurement used in the standard production
of picture frames, although when specified calculations can be made to
accommodate specific needs. You will see these sizes quoted on mirrors
and pictures to give an idea of overall size for the framed item you may
wish to purchase.
Overall Frame Width.
of the frame showing rebate aperture
These are the measurements given most commonly when ordering a picture
frame. ( At LeCira all sizes are quoted giving these size references
). Often referred to as the "glass size" it is the size of
the piece of glass required that will not fall through the central aperture
in the frame.
typical cross section from a simple wooden picture frame design
The general reason for requiring these sizes is to either match as
close as possible an existing design or the check whether the artwork
you wish to have framed will fit into the rebate of the chosen design.
As some mount combinations can often be more than 10 mm in depth. Example,
Plain glass 2 mm, double mount 3 mm, artwork on foamcore 5 mm
and then a backing board another 2 mm, total 12 mm Making it difficult
but not impossible to fit into a 10 mm rebate, a cost would therefore
be incurred to work around the problem.
typical cross section from a simple Aluminium picture frame design
Aluminium mouldings are measured slightly differently than wood, first
they have a set rebate that cannot be extended and the width visible
is nearly always smaller than the actual width of the design. Care should
be taken when measuring an existing frame as the frame size is measured
from the inner wall of the back edge.
When measuring frame sizes,
remember to measure from inside the rebates on wooden frames and from
the internal back edge on aluminium frames.
Basic assembly of simple
frame with double mount, Glass and Backing
When measuring artwork and
deciding on mounts, remember to allow about 7 mm over lap so that the
artwork won't fall through the aperture cut in the mount.
Glass ( Plain, NRG, Plastic
Backing ( 2 mm MDF )
could be a subject all of it's own, but shown here is a simple double
mount with even borders. When deciding of the aperture for your artwork
remember to allow for a small overlap approximately 7 mm all around the
image, so that your artwork won't fall through the aperture when on display.
Smaller tolerance can be worked with, but this amount works well on most
occasions. ( See our decorative mount section for more information on
mounts and mount designs.
Top mount Width
Bottom Mount Width
If you can't find the answer your looking
for in this section, follow the reply
form link, and put your query to one of our experienced framers. Who
will be pleased to e-mail or call with the answer to your query.
talking about or ordering a frame it's very important that both you and the
framer understand what you are try to achieve. Here are a few basic but very
important rules and terms for how to measure and relate to certain framing terminology