LJSmithInstallation | 页面 40

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PART 6 - Installing the False Bullnose Starting Step
107-D BENDING RAIL INSTALLATION L . J . Smith Bending Rail is designed for making curved railings on most curved staircases and balconies at the jobsite . Below are conditions that should be met for best results :
1 / 2 " Thick Plywood Shim
Notch to Receive False Tread Kit
1 / 2 " Thick Plywood Shim
Rake Rails on Staircases 1 . The Run , Rise , and Radius must be constant on that part of the stair where bending rail is to be used .
2 . The minimum recommended radius to use bending rail successfully is LJ-6010B ( 30 "), LJ-6210B ( 30 "), LJ-6519B ( 54 "), LJ-6109B ( 36 ").
Because the solid tread of a false bullnose starting step is 1 " thick and all other false treads are 1 / 2 " thick , the bottom rise should be made 1 / 2 " shorter than the other rises . Prepare a 1 / 2 " thick plywood shim which will be installed on top of the first subtread between the bullnose tread and the stringer on the closed side of the stair . The false tread on the closed side will be installed on top of this shim .
Secure the bullnose riser to the stair with glue and screws . Locate the screws where they will be covered by the cove and shoe moulding .
Level Balcony Rails
1 . The minimum recommended radius to use bending rail successfully is LJ-6010B ( 36 "), LJ-6210B ( 36 "), LJ-6519B ( 60 "), LJ-6109B ( 48 ").
NOTE : Due to the irregularities in wood , it is possible that more than one attempt will be required to bend a tight radius successfully .
BENDING RAILS
Bending Mould Bending Mould
LJ-6010B
LJ-6210B Bending Mould
LJ-6B10B
LJ-6A10B LJ-6519B
LJ-6109B
Attach the bullnose tread to the stair using glue and finish nails . Screws should be located where they will be covered by the starting newel .
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LJ-6900B LJ-6601B
LJ-6701B Bending Mould Bending Mould
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