Pencil for marking
L 90degree elbow
T Standard Tee
Step 1: Draw A draft Before Work
Figure out how wide your books are and draw out your idea.
Step 2: Measure It Out
Measure and cut those 20 pipes out.
Step 3: Putting It Together
Build it once before you use PVC cement to fix the fittings and pipes.
Step 4: Measure the Wood
After you finished the bookshelf frame, put it on the wood and draw out how big is the bottom part. Don't forget to mark down the four concaves too.
Step 5: Cut Out the Wood
Cut out the rectangle and the concaves with jigsaw tool.
Step 6: Finished
Put the wood and the PVC frame together and you should end up with something that looks like this.