Look at the picture, your column should be made by modeling, and the column itself can also be made by hand. Suppose your column is 80*80, take making a single column as an example: 1, and cut three 60*60 wooden blocks with blockboard or other solid boards for later use. 2. The shed surface shall be chiseled into a wedge at the position where the upright posts are fixed, and the 60*60 wood blocks shall be fixed at the wedge with nails and glue. 3. According to the required wood column length, cut out 4 pieces of wood 1000*80, fix 60*60 wood blocks at the seal of the insole, fix them around the 60*60 wood blocks on the shed, and then stick decorative boards outside the wood plates as required and spray paint. If there is a shed ceiling, the column can be fixed with the shed keel in the ceiling to further enhance the stability of the column.