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107-O BALUSTRADE CENTERLINE ON A HALF OPEN STAIR
The balustrade centerline on a half open stair may have to be shifted to allow for the use of a half-newel or rosette .
107-P USING A CLIMBING VOLUTE
All climbing volutes come with a template and detailed installation instructions .
Mark Tangent Point
Tangent Point
Balustrade Centerline
Distance from Stringer
Tack nail a 6 " x 6 " piece of plywood to the underside of the rake handrail . Place a torpedo level on the volute and set the fitting on the plywood seat , adjusting the volute until the easing is tangent to the handrail . Mark the cut line at the tangent point . Make a preliminary cut just behind the cut line to test the angle of cut , then make the finished cut .
Template
Plywood Seat
Newel Location
Level
Note : Moving the balustrade centerline may affect the location of a starting fitting on a starting step in an over the post system .
Rail
Tangent Point
On a flat surface , line up the volute on the template . Transfer the the tangent point to the template using a square . Then draw the rail on the template perpendicular to the line at the tangent point . Place the template on the starting step tread , making sure it is aligned with the rail and centered with the bullnose of the starting step . Mark the baluster and newel locations on the tread .
Assemble the volute to the handrail using a rail bolt . See Step 107-F for details .
Rail Bolt
Handrail
Baluster Locations
Climbing Volute
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Situate the handrail and volute on the stair with the volute centered over the starting step . Use a block of wood to transfer the baluster and newel marks on the tread to the volute .
GO TO 18
Transfer Block
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