We got a Wren kitchen a few years ago with mostly pull out drawers (thanks Kirsty!) and only 1 small 'regular' cupboard. The drawers are 900mm, not incl end pieces, and graduate in size ie narrowest at top which takes 6 stacked plates, bowls, plates and saucers, next is deepish (all sorts of bowls, flan dishes, cookware) and finally extra deep (takes large pot mixing bowls, ovenware, salad bowls etc). All are full to the brim and show no signs of strain. I also have creaky knees and vertigo so couldn't go back to cupboards. Only things in my single cupboard are 'once a year' things and my health has definitely improved. However, if you have a bespoke kitchen I'd have the drawers to match if possible but the designers are really helpful and might find something that looks good with your kitchen. Best tip I could offer is get a price from somewhere else as they aim to beat it with like-for-like items.