Instructions for building wall panels and posts using Alan Block materials. This is How-to Sheet #190, for the Courtyard Collection. Combine walls and posts in a three step process: build a post, build one wall off the post, then build a second wall off the first. Corner blocks help make perfect corners, and have one long and one short side. Offset the vertical seems by alternating. Blocks used for the wall include Dublin center-split, Dublin end-split, and York center-split. You will need to split some blocks with a chisel and hammer. Build two courses at a time, and once you have your posts all built then finish the wall. Finish the tops with post and wall caps, using masonry adhesive if desired to attach them.