1. Feed a piece of fishing line through the holes in your deck.
Locate the 2 screw holes closest to 1 end of the skateboard deck. Then, cut off 1 foot (0.30 m) or so of fishing line with a pair of scissors. Hold the deck with the underside facing you and feed 1 end of the fishing line through 1 hole. Then, feed it back towards you through the other hole.
2. Tie a knot with the ends of the fishing line.
Fishing line can be slippery, so make sure to tie a knot that will hold, such as a granny knot. Don't tie it too close to the holes in the deck, but instead provide a little slack between the knot and the deck to make hanging it easier.
3. Hammer a nail into the wall and hook the fishing line on it.
Hold a nail against a point on your wall where you'd like the top of the deck to be located. Then, use a hammer to carefully hammer the nail into the wall. Stop once the head of the nail is almost, but not quite, flush against the wall. Hang the fishing line on the nail between the nail head and the wall.
Note: If you're hanging multiple skateboard decks, you may want to use measuring tape and a pencil to find out where on the wall the boards should be hung in order to be evenly spaced out.