How best to clad this please?

[chalkywhite]

Hi there, the insulation board is slightly proud of the battens. It's a 20x6 shed. I could use wardrobe backing board to clad, any other suggestions please?
Thanks

 

[RandomGrinch]

Hi,

Perhaps some OSB?
Not cheap, but would add to the sheds structural rigidity, and would allow shelves etc. to be firmly secured?
It may depend on your use and budget!

 

[blup]

Increase the depth of the battens, then board of choice.

Blup

 

[foxhole]

11mm osb, rip some to strips to fix to uprights to deepen for board fix.Them you can fix shelf or anything else anywhere .