Covering OSB ideas needed

[Walkerfarm]

Can anyone give me some suggestions on what I can cover interior OSB walls with and not be as thick as drywall? I have a 200 year old house that I converted to my barn and would like to keep as much of the beam exposed as possible. The OSB panels abutt the main beams and are 1/4" behind the cross braces. Has anyone use a textured or heavy paint to cover the strand plywood? Any other suggestions.
Any help would be greatly appreciated.

Thanks,

 

[autoist]

1/8" bead board panels.

 

[TheShrine]

I agree with Autoist. I used bead board on the ceilings. This is the best pics I have right now........

 

[d110pickup]

I'm using Valspar Exterior paint (Duramax I believe) to paint the interior of my shop (see photos here http://www.garagejournal.com/forum/showthread.php?t=10218 , photos on next to last page I think). Two coats were used, the second is applied immediately after the first (no dry time) and it's covered.
Remember Lowes will usually discount if you ask. I bought eight gallons and asked for a discount, normal price was $36 a gallon, he sold it to me for $31.
Mike