RE: Herr Mini-Sport - my first kit build
Its a Great Plains 36" building board. I think SIG makes a similar building board. It was overpriced, really ($20). I could buy a defect hollow core door and ceiling tiles for about the same... but my workspace is confined to that 36" X 36" card table so the building board makes sense. It is wood, but it is lightweight and the pins go right into it. I didn't hurt my thumb.