IKEA IVAR Duplo Adapter

Build Duplo into your IKEA IVAR shelf. Build vertrically or try to bridge from the front to the back! When building up, three IVAR hole distances are the same as the height of five Duplo blocks. Or you can build with 90° rotated Duplos. Then one IVAR hole distance is exactly equivalent to two nubs distance.

Designed for the 50 cm IVAR version but should work reasonably well with 30 cm depth as well. Maybe use some Lego blocks to add one Lego stud of distance, then it should fit as well as the