While their blueprints are possibly lost to time we know they were constructed of a base, cylinder, and roof using wood forms that will have been reused to begin the build process anew after each pouring, also their parts may have been built off-site and then assembled on location.

The ceiling view had the appearance of the form being constructed like a cheese segment style rotation that was then poured and mounted atop with a slight overhang or eave around the outside.

A single circular indent system was used to hold the roof in place atop the cylinder.

These handy out-buildings featured a door and window opposite (upper four louvre with lower pane), with a small drainage hole at the floor wall corner below, while above outside the roof had a designed-in circular shallow v-gutter around the outer edge making for simple rain channeling with a drainage dip off to one side for water run-off.

The walls were around two and a half inches thick for the cylinder, and three inches for the roof section, and three for the base which sat in-line with the cylinder, Their large internal space measuring eight feet across the floor and seven feet to the apex above meant they could be used as a place for storage and or dispatching fowl back in the day.

Slight banding and nail head indents can be seen around the exterior and interior walls where the wood forms had been erected for pouring day.