Forum Title: Framing A Groin Vault?

I'm a mason by trade and I generally build my own templates for arches. I want to build a groin vault ceiling with wood framing then apply a rough coat of cement then apply thin brick for a finish ceiling. My question is how to figure the diagonal arches. If let say my wall arches are 10ft wide with a 16in. spring, and the room measures 14ft diagonally accross, would I simply build the 14ft arch with the same spring and then the intersecting diagonal arch and then attach the perlins from the center to the outside arches? When sketching the wall arches I would simply use two tape measures to find the radius, then draw the arch. I guess the same applys to the diagonal arch as well? Am I right?

Category: General Contractor Post By: ANITA MENDEZ (Santa Rosa, CA), 03/19/2018

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