Need help with a DC pullout shelf

[MikeWayzovski]

Check this thread:

Changing lengths of sub Components that has 45 degree cuts on the ends

I have my trim pieces set as sub components in my main component and one end of the trim pieces are cut at a 45 degree angle. Tho top trim piece is cut at both ends at 45 degree angles. How do I adapt these pieces so they are the correct length for different size door. (i.e. If I have an 80" tall door that is 32" wide the trim pieces should have their inner length 11 80 1/2" (to allow for the door frame/casing) and the top trim piece should have it’s inner side have a length of 33" (Door width +…