First apply wood glue the two sheets of wood (or three if desired). Then using a paint scraper to evenly spread the glue. Afterwards press the wood together. Be sure not to leave air bubbles in between the wood.
Step 2: Bending
Set up the wood so it hangs in the middle, and apply a weight so that it will curve as it drys. Then either staple or screw together the wood to create a tight seal.
Step 3: Design
Now its time to come up with a design for your longboard. You can copy other designs or make your own unique one. first draw your design on a large peice of paper and then trace that onto your wood. you can fold your paper in half and draw half the design and cut it out so you have a symmetrical design.
Step 4: Cutting and Sanding
Now that you have your design on your wood you can cut it out. First trace your paper design onto the wood. Then I used a jig saw to cut it, but you can use whatever works for you. sand it until it is nice and smooth so there is no rough edges.
Step 5: Painting
This step is optional, but the fiberglass will be clear and the paint will be visible. I used electric tape to sketch my design. Then i used wood stain to paint. To create the different shades i used three coats for the dark parts and one coat for the lighter parts. After the stain dries remove the tape.