Deep-Cut "Winter" design mats are just over 6' by 4' (1800mm by 1200mm approximately). Some are un-gridded, others have a 15cm "cross" grid, indicated by crosses at the corner of the squares (not shown).
Deep-Cut mats are printed on a thin, light cloth which can be washed, ironed, and folded or rolled away for storage. Hills can be placed on top or even, if shallow, underneath. I regularly export worldwide.
These mats (along with many other designs) can be found in The BigRedBatShop!