Carpet underlay (Exeter, St Thomas)

Three rolls, the first (smallest) in the picture is 137cm wide and about 2.5m long. That is the unrolled one in the pictures. No space inside to unroll the others, but they are both longer, same standard width. 10mm thick. The middle roll has an uneven edge, so about a metre of it is not full width. Could unroll it on the pavement to measure exact length, but I can't manage this on my own so you’d have to assist (too bulky to manage, not too heavy).