Confusing window conventions FYI

[Alan Ambrose]

Just a warning - some window & door suppliers show windows on quotes & drawings as viewed from inside (e.g. 21 degrees), some from outside (e.g. Rationel). This makes a difference re handle / lock positions etc and other asymmetrical detail.

 

Also, some UK suppliers show the handle position at the point of the triangle e.g. 21 Degrees, some e.g. Rationel show the point at the hinge side. Often this is fairly obvious, but sometimes not.

 

    

 

Just to add a bit of spice ... if the suppliers source extra detail drawings from their European suppliers, they may well be the other way round.