The SR-36 is a large floor model that can produce slabs up to 36"W x 52"L. Maximum slab thickness is 7/8". It includes one 1/4" plain shim, one 1/4" shim with canvas, and a 1/8" plain shim. Assembled dimensions: 49"W x 76"L x 40"H. IMPORTANT NOTE ON SR-36 SLAB ROLLER: Because the amount of clay and the mechanical pressure that is produced rolling a large slab, the middle of the bed may bow slightly, creating a slab that is thinner on the sides. This variation is more evident when rolling thinner slabs -- from 1/2" to 3/8". Its effect on thicker slabs is not quite as evident. This is a great slab roller for large projects, but those looking for thin, consistent slabs, may want to purchase one of our smaller models. Shims, canvas, cables and the optional leg set for the Brent SR-36 slab roller are also for the AMACO T-3 model slab roller.