We we bought our house, it had a concrete slab patio off the family room. My wife and I agreed that we would build a deck within the first 2 years of having the house. (year one was a new roof!)
I sat down and drew up the plans, got my town building permit and started. This was the first major building project that I have ever attempted. Because I had to work at the same time I was building, it took about half the summer to complete. I had help from both family, friends, and neighbors on this. We also replaced the junky 28 year old sliding glass door with a new Pella slider.
It is about 22 feet x 13 feet. It is made of pressure treated lumber for the structure and Fiberon composite decking. It has 4 foot deep footers due to the frost line in my area.
The flower gardens were built and filled by my wife. My main contribution to them was cutting a few pieces of brick here and there.