This graceful stair will enhance new construction, as well as a renovation in an interior or exterior setting. Perfect as a main stairway to a balcony, loft, deck, or finished basement. Be sure to check your local building code requirements.
- Unique, patented design locking tread support sleeves make assembly quick and easy.
- 4" x 4" square steel tube center beam with 3/16" x 18" wide header and floor plates.
- Optional spindle kits, tread styles, and handrails available.
View Instruction Manual
Options and Upgrades
Center Beam Angle:
Series 42 - Series 42 stairs have a 42° center beam, 8" risers, and 9" tread. Series 42 stairs require 6.6" minimum head clearance and 8'8" opening length.
Series 45 - Series 45 stairs have a 45° center beam, 8" risers, and 8" tread. Series 45 stairs require 6.6" minimum head clearance and 7'9" opening length.
| 90" |
12 |
7'10" |
7'1" |
| 91" |
12 |
7'11-1/8" |
7'2" |
| 92" |
12 |
8'1/4" |
7'3" |
| 93" |
12 |
8'1-3/8" |
7'4" |
| 94" |
12 |
8'2-1/2" |
7'5" |
| 95" |
12 |
8'3-5/8" |
7'6" |
| 96" |
12 |
8'4-3/4" |
7'7" |
97" |
12 |
8'5-7/8" |
7'8" |
| 98" |
12 |
8'7" |
7'9" |
| 99" |
12 |
8'8-1/8" |
7'10" |
| 100" |
12 |
8'9-1/4" |
7'11" |
Spindle Options:
R-1 spindles one 1" x 1" square tube spindle per tread |
 |
R-2 spindles two 3/4" x 3/4" square steel spindles per tread |
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| R-3 spindles one 3/4" x 3/4" scroll design spindle per tread |
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Tread Options:
Tread Supports - attach your own metal or wood treads to the tread supports of the stair; tread supports are 3/16" thick steel, 8" deep, and 24" wide to accept wood coverings.
Steel Treads - 36"W Smooth steel treads; can be used as-is or may be covered
Diamond Pattern Treads - 36"W textured treads welded to the tread support
Oak Treads - 36"W Solid oak treads
Plywood Treads - 36"W Plywood treads to be used as an underlayment for carpeting