Reclaimed floorboards

[Yukster]

I bought some reclaimed pine floorboards for my house and after I started planing them I realised that some are a 1-2mm too thin. I'd rather not have to plain/sand the majority of the boards to match the thin ones. Can you suggest a good way of packing these thin ones so they are flush with the rest of my boards? Will 2mm joist slices between the boards and the joists do? Thanks

 

[Deleted member 174758]

Plane to 3mm thinner than required then pack-up off the joists with hardboard strips or use plastic shims (as required - available in 1, 1.5 and 2mm thickness) and just surface the minimum you can get away with. The first is less work