1. To build a wave tank we had to first gather materials. 2. The materials we needed were a 7ft by 3.5ft base piece of wood, two 7ft by 1ft walls and two more 3.5ft by 1ft walls. 3. We also needed to buy flex seal, water resistant caulking, and lots of screws. 4. We made made sure to get some extra plywood to us for a reef, wave maker. 5. We bought 3/4in PVC pipe that is 3.5ft long and PVC pipe bases. 6. Now that we had all of our materials it was time to build. 7. To build our wave machine we needed a table saw to cut the wood and screwdriver for assembly. 8. First we laid down our base plywood and screwed on the sides. 9. Once they were all screwed in we caulked all of the corners and cracks to make our tank waterproof. 10. Next we made the wave generator. 11. We cut a 3.5ft by 10in piece of wood from your extra plywood. 12. We mounted our PVC pipe 1ft from the end of you tank and then mounted the piece of wood. 13. Next we tested it to make sure it pivoted back and forth smoothly. 14. Then we made the reef part of the tank which actually makes the wave break. 15. We cut a slanted piece of wood to mount the wooden reef. 16. Finally, we cut a big flat angled piece of plywood (the reef) to rest on our wooden mount which held it in place. 17. Once we laid our reef in the tank we screwed it in and were ready to test.