We found the wood planks at Home Depot. (Our Lowes did not carry this size wood) We used Yella Wood in 1x6 slants. (One tip I will give you is to stain the wood before you nail them together. It makes things a lot easier!) You can make these shutters fairly easy and without much "Handyman" experience.
We used a air nail gun to secure them together. (I wish I would have taken step by step pics but did not) We used four wood slants and then two slants, one on the top and one on the bottom. You can use more than four if you have the space for that size of the shutter. Four boards worked perfectly for our house. We then bought standard gate hinges and took them apart and used one on the top and one on the bottom for decoration. The shutters turned out beautifully! We made four shutters for around $100. We stained the shutters to match our fence and also bought a new address plate and numbers and stained it the same color as well.
Please post any questions you may have and I will be happy to answer!