Originally Posted by iFreilicht
There is currently a discussion
whether Project mATX is actually below 20L. It seems like Jeff has used incorrect dimensions to calculate the volume of his case.
That's a bummer, but you bring up a good point. Some official measurements include the case feet and some don't.
There are also cases that are not rectangular shaped and those specs just list the longest lengths.
Should we measure it by the amount of space it would take up if we were to fit it into the smallest rectangular box possible?
For example, the jonsbo V6:
240 mm (D) x 250 mm (W) x 210 mm (H) = 12.6L w/ case feet (official measurements)
240 mm (D) x 250 mm (W) x 207 mm (H) = 12.42L w/ case feet (my own measurements)
240 mm (D) x 250 mm (W) x 202 mm (H) = 12.12L w/o case feet (my own measurements)
200 mm (W) x 224 mm (D) x 262 mm (H) = 11.74L w/o case feet (official)
201 mm (W) x 226 mm (D) x 262 mm (H) = 11.9L w/o case feet (mine)
200 mm (W) x 224 mm (D) x 272 mm (H) = 12.2 w/ case feet (mine)
That's around ~0.4L of difference. There's also the CM cases with the extruded PSU. I'm pretty sure it does not take the extruded PSU into account.
There's also the Taiding Pi case which is a cylinder. The volume I got was 9.2L, but if we use the longest w/d/h dimensions and made it into a cube, it'll be 11.7L.
I noticed that some cases cannot function without the case feet while some can. I won't be able to test every case do measure each case myself so I'll have to rely on the official dimensions.