In my living room my joists are running parallel to my rear wall where I need to fit a peerless mount. The mount has 2 fixing points but the joist closest to the wall is too close to mount to and the one in front is too close to screen for my throw distance. I was thinking of putting a piece of wood between these joints and fixing mount to the wood. However I don't want to use a very thick piece of wood as my wife would hate that. Any tips for securing a mount to that piece of wood taking into account it only will have 2 fixing points.