I've almost finished building my first baseboard from a youtube video. So at the moment, I've got a spirit level, some clamps and a bunch of these lock nuts that are left over:https://www.accu.co.uk/en/hexagon-nylon-locking-nuts/7950-HNN-M10-A2. I used the lock nuts for the angle brackets rather than the lock washers that were mentioned in the video because I already had some in my workshop. I originally planned to make a sturdy baseboard for under £30, but I ended up impulsively buying an Insize adjustable engineering square for over £100! But at least it will come in useful for other projects.
Further down the line, I'm going to build another baseboard and connect them together somehow, what is the best way to fix them together please?