First things first, we select the best looking 2x8 boards we could find.
After some guessing and arguing, we decided our bench would be 5 ft long and 18 inches tall. Since they can cut the wood at the store we went ahead and got it cut.
We came home and did some sanding of the boards since all HD carries is a rough finish. We didn't want our bums to be rough so we sanded all the boards.
After sanding, I realized 5ft was too long so I had to cut one foot off each of the boards. I then joined them together using a some wood screws and a plates.