I don't have any pictures to show you but you can also cut the bad board into with a jigsaw or saws all. Then take the board you want to put back on and cut it to the right length. Stick one end under the metal lay a piece of 2X4 across under it turned up edge ways. Have somebody stand on the other end so that it is lower than the metal it needs to go under. The take a sledge hammer and drive the 2X4 out from under it. When it springs back out straight it will be underneath the metal on both ends. I have a 12' trailer that had to have some boards replaced and that is how my son and a helpers put them in.