I love the ease of changing the front face on the IKEA drawers so I bought a Rationell drawer and worked on modifying it to fit a 12″ base cabinet. Below are some pics showing the mod.

Use this design and numbers to do any Rationell mod

Those are the pins that need to be marked out

Marked out the cut on Scotch Tape. More visible than writing on the actual surface.

Used a Grinder Cut Wheel to make the cut

Nice Fit

Put the bottom back on after cutting it as well

Worked on the drawer face

Handles also from IKEA