I have some decking in my back garden and some of the planks need replacing. However, the screws are difficult to remove.
Some have rusted/weakened sufficiently so that I've managed to remove the screw head entirely when trying to unscrew them while others are just very stubborn and hard to undo.
I've put some WD40 on them and this has helped in some cases, but there are still many that are proving very hard to get out.
The planks will be thrown away so I was considering drilling through the wood around the screw and effectively allowing me to remove the plank and leave the screw behind (possibly in a little plug of wood left behind) but then I'm stuck with still having to get the screw out.
I'll also have to remove the shafts of the screws that have lost their heads but I'm hoping that using pliers will do that.
What would be an effective course of action for dealing with stubborn screws in old decking?