A kitchen quandary...

Earlier today there was an email from the kitchen installers saying they'd spotted a potential problem with the design. A problem for unit 33 (wall cupboard near the extractor hood) with the door opening being impeded. The suggestion was for wall unit 33 to have two 300mm doors instead of one 600mm door.  And for symmetry to do this with unit 28 too. That means destroying the clean lines so I wasn't keen. 

Looking at it further when I got home it wasn't clear why this wouldn't work. We currently have a 600mm and a 500mm wall units, so total wall unit length of 1100mm. The new units are 300mm and 600mm, totally 900mm. Where have the extra 200mm gone?

The depth of the current extractor fan (placed at right angles to the wall cupboards) is 500mm. The depth of the new extractor hood is also 500mm. The distance between the open cupboard door and the existing fan is 120mm. Puzzled by the missing 200mm both me and MOH scratched our heads for a while...

Then I spotted the 200mm filler (numbered 35). With that it brings the wall unit space to 1100mm.  The same as the existing wall unit space. The cupboard with the potentially problematic door now is 500mm and will be 600mm. That's 100mm extra but that's still smaller than the existing 120mm gap. So should fit. Simples. I think.