With the cm900 it is not possible to cut without a mat, it always needs a mat. There are 2 sizes 30 x 30 cm or the long 30 x 60 cm. The width is limited to 30 cm. Maximum length of 60 cm (conditional on the 30 x 60 cm mat) If this is an important criterion to plot longer than 60 cm, the design must be assembled. In addition to the cm900, I have the cameo 3 from Silhouette America. The width is the same as the cm900, but it can cut overlength (up to 3 metres, I think).