I should have said most of our LAUNDRY machines were 27 x 27 inches.........
DW-ers are nearly the same everywhere 24 x 24 inches (60 cm square)
Refrigerators vary from 24 x 24 inches (60 cm square) to about 36 x 27 (90 x 67.5 cm) and stoves / cookers are generally a standard 30 x 24 inches (75 x 60 cm).
Wall-ovens (fitted ovens) come in 24, 27 and now 30 inch widths.
*WINK*
Just as a pointless and useless Toggle tidbit, I'm thinking we have such large ovens here in that our Thanksgiving holiday tradation includes a rather large --er-- bird (turkey) in the oven these can be approximately one *stone* in weight (14 lbs) sometimes larger.