Intro: Growth Chart Oversized Ruler
Step 1: Cut and Sand
cut your plank to the desired length. sand it down nice and smooth. I used polyurethane clear as a top coat.
Once the sealer cures, either hand paint or do what I did, and use stencils. Use a tape to make your marks for 1/2" to 1".
hang or lean against the wall and start a growth time line!