Cross Vault Sketches, Notes and Links
Study of an Irregular Cross Vault

Cross Vault Purlin Angle Calculator Cross Vault Rise = Plan Angle between Centerlines = Main Vault Width = Adjoining Vault Width = Measured from the Center of the Main Vault Dimension to Framing Point = MAIN VAULT ELLIPSE Plan Angle = Foci from Center ± = Rise to Framing Point = Slope at Framing Point = Pitch Angle at Framing Point = Purlin Face tangent to the Curve Angle on the Stick = Saw Miter Angle = Saw Blade Bevel = Purlin Face perpendicular to the Curve Angle on the Stick = Saw Miter Angle = Saw Blade Bevel = VALLEY ELLIPSE Width = Foci from Center ± = Center to Framing Point = Slope at Framing Point = Pitch Angle at Framing Point = ADJOINING VAULT ELLIPSE Plan Angle = Foci from Center ± = Center to Framing Point = Slope at Framing Point = Pitch Angle at Framing Point = Purlin Face tangent to the Curve Angle on the Stick = Saw Miter Angle = Saw Blade Bevel = Purlin Face perpendicular to the Curve Angle on the Stick = Saw Miter Angle = Saw Blade Bevel =