Our local supplier, Spikare sells a variety of enclosures for mounting homebrew electronic projects. Sadly, they do not provide even preliminary dimensions or internal layout information. Hope i will fill the gap.

Name Image Height Lenght Width Eagle script to draw PCB outline
Z-23x 14, 20, 21, 28, 36 78 54

# Z-23x Format enclosure
# Draws the dimension lines of a Z-23x (U, A, AU, B) enclosure.
# Enclosure is produced by Kradex,
# http://www.kradex.com.pl/z23.htm

Grid mm 1 off;
Set Wire_Bend 0;
Layer Dimension;
Wire 0 (0 0) (78 54) (0 0);
Wire 0 (36 27) (42 27);
Wire 0 (39 25) (39 29);
Circle 0.18 (39 27) (38 27);
Circle 0.18 (39 27) (34 27);
Layer tRestrict;
Circle 0 (39 27) (34 27);
Layer bRestrict;
Circle 0 (39 27) (34 27);
Layer vRestrict;
Circle 0 (39 27) (34 27);
Grid Last;
Window Fit;