hmmm I know this one had the 27 in it when I bought it. the blog I was looking at had a copy of a treadle cabinet ad and it listed 15 66 and 127 seems like so that's why I thougth a 27 was a different size. dunno...working on getting ready for round robin right now and need to put thoughts of more for the herd aside LOL but I like to at least 'plan' a bit and I'd rather not have a bunch of treadles around unless they're really pretty - and the 2 cabinets I have aren't pristine perfect by any means- pretty enough and functional I'd say esp since the veneer chipped off the front of the singer and I messed up the new home by bumping that front piece with my knee. need to try gluing it back in place.