How to measure up
If you are keen to take accurate
measurements these are the steps you need to take. If your panel is not a rectangle or
square i.e. is oval or has a shaped head, a rubbing of the aperture will
need to be made. It may be advisable if this is done by a professional.
Cross Section of a Door /
As you can see from the
drawing the glass panel is slightly larger than it looks in situe. This is
because whatever has been used to fix the glass in place, most
commonly putty or beading, hides the remaining glass.
There are two sizes that you
need to take; sight size and tight size. The sight size is the most
important and is simply from edge of glass where it meets the door /
window frame to opposite edge of glass. As glass tends to be glazed
both internally and externally it is impossible to say whether this will
be on the inside or the outside.
You can easily distinguish it
from the tight size, however, as the tight size is simply from edge of
wood to edge of wood but also includes the small bit extra which is
covered by beading or putty. Typically the tight size is about 18 -
28 mm more than the sight size.