I would like to realise the sides, is it possible?
Yes, the online interface is not yet available but you can send us your dimensions by e-mail, we will do an estimate for you.
 

You propose to secure my cover with 3 intermediate crosspieces but my frame got 5 crosspieces, what I must do?
The goal of the fixations on the crosspiece is to prevent to flutter in the wind.
We propose 3 crosspieces because it’s enough for almost situations, up to you for their layout.

Should we add the scale on the cover?
You must specify the dimensions of the frame, we will add the necessary scale.