Do you supply Onduline in different lengths?

Yes, there are different profiles within Onduline range, and a specific geometry for each of them.
Onduline Classic (10 corrugations) comes in one standard size of 2 x 0.95m, that can easily be cut to match your needs.
Respective measurement of several roofing products:

Onduline Base and Onduline Ondutoit 9 (9 corrugations) measure 2x0,855m.
Onduline Easyfix (6 corrugations & 5 flat parts) measures 2 x 0,81m.
Onduline Easyline (8 corrugations) measures 1 x 0,76m in Europe and in Asia (10 corrugations) : 1x0,95m
Onduline Ondalux (10 corrugations) measures 2 x 0.95m.
Onduline Ondever (15 corrugations) measures 2 x 0,953m.
Onduline Design Duo and Onduline Classic 235 measure 2 x 1,045m