I purchased a spa and needed to create an oasis to put it in. We built a composite deck and have added the pergolas and synthetic grass from Bunnings as well as many plants, solar lights and pots.
It all went smoothly. The composite decking is very easy to put together and the spa doesn't need plumbing. Synthetic lawn is also easy to lay. It takes a few weeks to flatten out nicely and we added sand to help with the kinks. It is very easy maintenance as is the deck. I added the privacy screens next to the fire pit with a pool gate for security.
The project took approximately two months, working two to three days a week.
The privacy screen and gate took about five days total work and all up, took countless trips to Bunnings.