Good morning folks, a bit of an IKEA faux pas yesterday. We purchased some " KALLAX " units for storing our brommies, and Mrs Tkk also ordered a side unit that can take various inserts such as drawers / dividers/ doors etc. I assembled a pair of drawers and when inserted they came up short of external frame. They still worked fine but didn't look right. After puzzling and checking I realised that the unit Mrs Tkk had specified was 5mm shallower. As the chaps on here will know, it was, of course, my fault🤔. After rechecking and remeasuring I realised that the new unit that Mrs Tkk had specified was 5mm shallower in one dimension, hence the mismatch. When I pointed this out ( diplomatically of course 😁) there was much muttering and spluttering before it was decided that it was all the fault of the designers at IKEA, and not a failure by Mrs Tkk to check dimensions before ordering😁. I'll keep this one in reserve, and only bring it up on appropriate occasions 😉