In this how to video, you will learn how to build a post. Court yard posts create beautiful accents to your yards. They can be used as entry monuments and fence posts. When using corner blocks, make sure the long sides are at the outside of the post. First, place these corner blocks in a square. Align the blocks with the square. Next, place four more blocks on top of the original blocks. Make sure the blocks touch two blocks. Keep on stacking them to the desired height. Add two post caps. Secure them with masonry adhesive. Your post is now finished.