Arch Form in Place

The arch form is now in place and ready to receive bricks to make the chamber of the kiln.  This is a catenary arch--approximately as wide as it is tall but not a round arch form like a roman or barrel arch.  If you take a piece of string and let it drape loose it will create a catenary arch..  This arch is almost 12 feet long and three feet tall.  The form is made from a skeleton of 2" X 4"s and 3/4" front and back plywood shapes with 1/8" Masonite streached across the form and screwed into place.  Look for the bricks to define the arch next.