See also: Progressive pop and Art rock. The term progressive rock is synonymous with art rock, classical rock, and symphonic rock. Historically, art rock has been used to describe at least two related, but distinct, types of rock music.
The usual range of sizes for internal doors is: 6'6 x 2'3 (1981mm x 686mm), 6'6 x 2'6 (1981mm x 762mm), and 6'6 x 2'9 (1981mm x 838mm). Kitchen Cupboard Door Sizes. The standard widths for kitchen cupboard doors are 300mm, 400mm, 500mm, 600mm, 800mm, and 1000mm. Wall unit doors are usually 600mm or 720mm high.
Maximum width is 1,490mm narrowing to 1,226mm between the wheel boxes while maximum height is 1,364mm. Rear loading height is 601mm. Side door aperture width is 809mm with a height of 1,181mm. The dimensions for the rear aperture are 1,293mm and 1,316mm respectively.