Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to build a swimming pool from wood and plastic [title] Build braces for the side of the pool by placing two pieces of wood the length of the pool on the floor. [step] Find out what height you want the pool and then cut wood to that length minus the width of the 2 " by 4 ". [title] Screw the pieces into the wood at minimum 1' distances and maximum 2' distance.

Ending1: [step] Repeat this process with the other 4 " boards. It is in this manner that using screws and cleats makes hanging a 3d unit of weight. Ending2: [step] Staple (not nails! ) on the top of each piece by hole placed one inch deep into the wood. [title] Now it's time to install the 2 " ceiling fixtures at the build a. Ending3: [title] Repeat step 1 and 2 until you have 4 braces like this. [title] Cut 4 pieces of plywood to the height and length of the braces. Ending4: [title] Cover the push-all gaskets between boards with wood wood glue. [step] Cut boards to 3/4 " (180 mm) from the wood (enough is a good amount).

Answer format: ending1/ending2/ending3/ending4