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properly used, it refers to a narrow,
circular section moulding.
More commonly, it is used to describe wooden glazing bars dividing up a glazed sash
(Quite reasonably, these are also
refered to as sash bars). Early astragals tended to be thick and chunky without much
Gradually, as joinery techniques
improved, they became more graceful and better detailed (Illustration).
profiles were first achieved by using sash planes, which usually came in pairs, numbered 1 and
2, where 1 achieved a rough profile, and 2 was used for finishing.
In domestic property the detail is on the inside, the householder can appreciate it as he stands looking
out of his window, while on
shopfronts the detail is traditionally on the exterior,
where it can be appreciated by a person looking in.
(Twelve pane divide Illustration) - see also Focus on Miln's Buildings