Bracing the posts next the pool can be a little tricky. Because the Dek-Block® pier and 4"x4" posts are placed along the arc of the pool, you will need to "compound miter" the 2"x4" braces. This means that you should place a 2"x4" board next to each post, and scribe a line for each of the vertical angles where the board will meet the two posts. Next, you will need to "eye-ball" the compound angle cut so that each end of the board lies relatively flush against the posts. We suggest you experiment with a couple of scraps of wood first. This will let you get a feel for the process before actually cutting your 2"x4" boards. Also, don't worry if the braces don't meet right at the block and the top of the 4x4 post. In this case the the closest 'best fit' is good enough, - if it's close, it's fine.