Are there any published standards for the fixing hole positions for concealed hinges, as used on cabinets and wardrobes? I assume there must be, because cabinets and doors often come with pre-drilled holes and sockets, even though the maker won't know what hinges are to be fitted.
I have a row of three fitted wardrobes - each with double doors - and supplied with hinges (4 per door) which only allow the doors to open to about 90 degrees. I was recently given a set of 4 x 170 degree hinges and baseplates, and was agreeably surprised to find that they fitted very easily in place of the originals, allowing one of the doors to open sufficiently for light from a pendant light fitting - and light from the window - to enter a previously very dark wardrobe.
It would be nice to convert some of the other doors as well. If I buy some more 170 degree hinges (which may be different from the ones I was given), is there a good chance that they'll fit?
From the measurements I've made on the wardrobes and on various kitchen cabinets, etc., there seems to be a sort of standard along the lines of:
Door: 35mm diameter socket set in 5mm from edge (i.e. with centre 22.5mm in)
Casings: 2 x 5mm holes for each baseplate, with centres 37.5mm in from front edge, and spaced 32mm vertically
Does that sound about right?