ORDERING INFORMATION
- Model name_________________(BAYHILL, SPRINGFIELD,
CAMBRIDGE, CAPTIVA)
- Species____________________(Red Oak, White Maple, American
Cherry, Mahogany)
- Diameter_____________________________(4'0", 4'6",
5'0", 5'4", 6'0", 7'0") (NOTE: Finished well opening
should be 4" greater than diameter of stair. When landing tread nosing is used , add
a total of 6-1/2" to diameter of stair for proper finished well opening size.)
- Floor to Floor Height (see below)___________________(Exact
Finish to Finish Required)
- Rotation (Descending- see below)____________________(RH =
Clockwise, LH = Counterclockwise)
- Platform Style (see below)_________________________(2 SL, 3
SL Straight, 3 SL L-shaped, curved)
- Riser Space Bar_________________________________(Yes, no -
see) below)
- Indicate matching balcony rail and parts needed - please
include sketch.
| Notice: The selection of spiral stairs
and their compliance with building coded, safety laws, or any other law , ordinance,
regulation, etc., that may apply is the sole and entire responsibility of the buyer,
building owner, builder, architect and/or engineer. |
Floor to Floor Height and Rotation of Stairway
4'-0 DIAMETER
| Floor to Floor Height |
# of Treads |
Rotation of Treads |
| 88-3/4" - 97-1/2" |
9 |
270º |
| 97-5/8" - 106-3/8" |
10 |
300º |
| 106-1/2 - 115-1/4" |
11 |
330º |
| 115-3/8" - 124-1/8" |
12 |
360º |
| 124-1/4" - 133" |
13 |
390º |
| 133-1/8" - 141 7/8" |
14 |
420º |
4'-6" Diameter
5'-0" Diameter
5'-4" Diameter
6'-0" Diameter
7'-0" Diameter
| Floor to Floor Height |
# of Treads |
Rotation of Treads |
| 88-3/4" - 95-7/8" |
10 |
270º |
| 96" - 103-3/8" |
11 |
297º |
| 104" - 111-1/4" |
12 |
324º |
| 112"-119-7/8" |
13 |
351º |
| 120" - 127-7/8" |
14 |
378º |
| 128" - 135 7/8 |
15 |
405º |
| 136" - 144" |
16 |
432º |
Landing Platforms

Note: Dotted lines around well opening indicate matching
balcony rail and parts
| Key To Charts A. Run of tread 12" from
column
B. Distance from column to
nose of tread
C. Tread width at wide end of
tread
D. Baluster spacing center
E. Number of balusters per
tread |
 |
| Stair Diameter |
Finish Well Hole Opening |
Round Center Column Dia |
Landing Platform Size |
Degree of Tread |
Min. Rise |
Max. Rise |
A |
B |
C |
D |
E |
| 4'-0" |
4'-4" |
6" |
2'-2" |
30º |
8-7/8" |
9-1/2" |
7-3/4" |
21" |
11-13/16" |
4" |
3 |
| 4'-6" |
4'-10" |
8" |
2'-3" |
27º |
8" |
8-3/4" |
71/2" |
23" |
12-1/8" |
4" |
3 |
| 5'-0" |
5'-4" |
8" |
2'-6" |
27º |
8" |
8-3/4" |
71/2" |
26" |
13-1/2" |
4-1/2" |
3 |
| 5'-4" |
5'-8" |
8" |
2'-8" |
27º |
8" |
8-3/4" |
71/2" |
28" |
14-3/8" |
4-13/16" |
3 |
| 6'-0" |
6'-4" |
8" |
3'-0" |
27º |
8" |
8-3/4" |
71/2" |
32" |
16-3/16" |
4-1/18" |
4 |
| 7'-0" |
7'-4" |
12" |
3'-6" |
27º |
8" |
8-3/4" |
12-1/4" |
35-3/4" |
19-1/8" |
4-15/16" |
4 |
Riser Space Bar

Required for code compliance in some areas. Check local
building codes.

1076 Ehlers Road, P.O. Box 763, Neenah, WI 54957
1-800-558-5096, FAX: 920-725-2053
Arcways, Inc. reserves the right to change details,
specifications, or sizes without notice. Arcways must be notified before any alterations
are made to our products. The customer assumes all risk of alterations made to Arcways
products.
Made in U.S.A |