Are you ordering or making the drawer boxes?
Then I would place the bottom of the box up from the front and sides 1 1/4".
Place a 3/4" x 20" false bottom in the front so the locking device will have the normal 1/2" reveal to mount to and the slides have something to bear on. (Figuring you are using 1/2" material for the drawers)
Then make a 1/2" x 1 1/4" "false back" that creates the needed 21" "box" underneath for the rear retention tabs that staples to the back of that false bottom.
Basically move the bottom out of the way so you can create the needed parts under the bottom for the locking devise and the retention tabs. Your 23 1/2" box will sit above it all.
Never have done it but it seems easy enough to do.
I did this for a printer shelf that the customer wanted to pull out of the cabinet to be able to use the scanner. Of course the printer didn't fit into blums 3" increments and I had to improvise.
I wish Blum made slides in 1" increments from 14"-24":thumb up: I've ended up with a lot of wasted drawer box space because of atypical cabinet depths.
As it happens, one of the drawers is a printer shelf.
Then I would place the bottom of the box up from the front and sides 1 1/4".
Place a 3/4" x 20" false bottom in the front so the locking device will have the normal 1/2" reveal to mount to and the slides have something to bear on. (Figuring you are using 1/2" material for the drawers)
Then make a 1/2" x 1 1/4" "false back" that creates the needed 21" "box" underneath for the rear retention tabs that staples to the back of that false bottom.
Basically move the bottom out of the way so you can create the needed parts under the bottom for the locking devise and the retention tabs. Your 23 1/2" box will sit above it all.
Never have done it but it seems easy enough to do.
Thanks, Gus.
Making.
I don't think a 2 - 2 1/2" spacer in the front will affect it weight wise... they are pretty beefy glides... as long as you have it screwed into the backs and sides it should not be an issue...
If you really want or still feel the need to keep it more to the front, your only option I can see is extending a runner down from the bottom for the back hook to insert into so the drawer can extend back the 2 - 2 1/2" you are looking for beyond the hook...
Glue the runner to the bottom and side along with some fasteners...
Best of luck... 8^)
I don't think a 2 - 2 1/2" spacer in the front will affect it weight wise... they are pretty beefy glides... as long as you have it screwed into the backs and sides it should not be an issue...
If you really want or still feel the need to keep it more to the front, your only option I can see is extending a runner down from the bottom for the back hook to insert into so the drawer can extend back the 2 - 2 1/2" you are looking for beyond the hook...
Glue the runner to the bottom and side along with some fasteners...
Best of luck... 8^)