I am planning to use the DIY bin storage unit. But I am having a problem with the width. The top boards are 2079 - so this implies the width. However when I add up the individual parts I make it 2178. This is made up of three bin areas that are 620 wide (1860 ) plus 4 frames (2 ends and 2 middles) which are 70 wide (280) plus 2 cladding of 19mm (38). I also believe the side cladding is 870 and not 890.
My reasons for checking this to be able to scale it down for 2 bins and working out where the 3 bin or the 2 bin can fit.
Thank you.