Installing Posts. Fit each post into the bracket it was cut for, so that all post tops are level and even with the outline string. Make any adjustments in post height now by trimming them down if they are too tall, or replacing posts cut to short. Set each post into its bracket and check it for “plumb” (vertically level) with a level.

Sonotubes are tubular, concrete forms made of very heavy paper. Concrete forms are a way to 'cast' fluid concrete into shapes in the same way that foundries cast fluid metal into shapes using molds. Sontotubes are used to cast columns. Pumpkin Patch Belgium. The tubes come in standard 12 and 20 foot lengths. They can be filled all the way to the top without bursting.