Stud finding

Because the wall that I am going to be hanging the tv mount on is made out if wood the traditional stud finder that ms. Freeman let me borrow did not work. I have been doing some research in finding studs and I will need to find the very first stud and then measure out 16in in between each stud and keep going till I get to where I want. I am thinking that the only way in finding it is with a small nail very close to the floor where it will not be noticeable.