Yes, on this website. It's part of what the site is for..

If only that were true, Avant. Boot capacities are given by volume, not length and width.

In fairness, though, giving those dimensions would be a massive task, because there must be lots of grey areas. In my car, for instance, the length of an item which can fit in the boot, with the rear seats lowered, depends on how close to the steering wheel the driver is prepared or able to sit.

My particular gripe, in this respect, is that photographs in the reviews rarely show exactly what you can do with the rear seats i.e. do they fold and stand vertically, fold giving a stepped floor or fold to give a completely flat cargo space. The text too is often unhelpful in this respect.

Thanks, luggage capacities are there but not boot dimensions.

I was trying to be a bit lazy and see if there was any easy way of narrowing my search by listing cars on a criterion such as boot space without having to visit each page and write it down individually to start my list.

... so i know where the OP is coming from.

So do I. In the past I've needed to take 2 cycles on holiday trips, but wanted to avoid having them on a roof rack in service areas and the like where I couldn't keep an eye on the car. The obvious solution seemed to be to carry them, with the front wheels removed, inside the car. We had no passengers for the rear seats, so I looked for an estate car where they could fold flat and give a space long enough for the cycles to be strapped to either side of the vehicle with luggage in between. I went round a car supermarket with a tape measure looking at cars in my price range. I recall that a Mk 4 Astra was long enough inside, but the Focus, which was current at the time, was not.