I'm in the process of clearing loft space for storage. The old water tank is being chopped up and removed. The existing floor boards are sparadic, some hang over half way between joists. So I intend to cut some of them back to the joists in a manner that I can then lay the chipboard tongue and groove stuff.
I have so far cut the floor boards flush with the joists using my jigsaw. I now need to cut the floor boards back to half way across the joist leaving room to lay the new chipboards.
The question I have is what is the best tool to do the job? I've borrowed a circular saw but it seems a bit like a sledge hammer to crack a nut.
I am a DIY numpty and I'm not particularly experienced with what tools might be available and for what use. Any help appreciated!