Cladding internal timber corner

[Ouch77]

Hi all,

I'm planning on lining a new shed I've had installed with T&G cladding.
The shed is build with 3x2" cls framed panels, prefabbed and assembled on site.
Each corner has a frame side and an open side, for want of better description:

I'm unsure how I'm going to support the cut ends of the cladding boards that land on the 'open' side, shown in blue, above.

I also have a similar issue with the 'utility' side of the shed, which will be lined with 11mm OSB.

Does anyone have any suggestions?

 

[Diver Fred]

I'd run a batten down the face side of the cladding that you are going to put on the 'Frame Side' making sure the cladding is sufficiently oversized that the edge of the batten that you will fixing the 'Open Side' cladding is in line with the frame side edge. frame side cladding is affixed first then the open side cladding.
A further consideration is to fix either Quadrant or Scocia into the corners.