Naples Exterior Spiral Stair Kit | Outdoor Galvanized
The Naples Exterior Spiral Stair Kit is a solid, hot-dip galvanized outdoor spiral staircase built to perform in every location and atmospheric condition. Available in three diameters (47", 55", and 63"), this Italian-designed exterior stair features galvanized steel steps with an anti-slip raised pattern for safe, sure footing whether wet, dry, or icy.
Built for flexibility, the Naples Exterior offers adjustable rise options from 8-1/4" to 9" and two installation configurations: a 60° landing with square opening, or direct landing at the floor slab. The 47" diameter is ideal for balconies and compact outdoor access, the 55" balances tread comfort with a moderate footprint, and the 63" is IRC compliant for primary outdoor staircase use where local code permits. Designed for floor-to-floor heights from 6' 10-5/8" to 12' 7/8" with extra steps, the Naples Exterior ships ready for straightforward DIY installation with common tools.
Personalize your staircase with two galvanized and painted finishes (White 32 or Black 31) to complement any exterior. The round composite handrail in Black or Grey provides a weather-resistant finishing touch, while hot-dip galvanized vertical columns deliver lasting protection against corrosion and atmospheric agents. Elevate your outdoor space with the Naples Exterior Spiral Stair Kit, where rugged Italian construction meets contemporary outdoor design.
Naples Exterior Spiral Stair Kit Specifications
| Specification | Details |
|---|---|
| Stair Diameter | 47" (120 cm), 55" (140 cm), 63" (160 cm) |
| Use | Outdoor (exterior) staircase, all-weather rated |
| Step Material | Hot-dip galvanized steel with anti-slip raised pattern |
| Structure Material | Hot-dip galvanized steel spacers attached to the steps |
| Corrosion Protection | Hot-dip galvanization, the best steel protection against corrosion and atmospheric agents |
| Handrail | Round composite (straight or helical) in Black or Grey |
| Colors Available | Galvanized and painted steel: White 32 or Black 31 |
| Adjustable Rise | Min. 8-1/4" (21 cm) to Max. 9" (23 cm) |
| Height Range | 6' 10-5/8" (210 cm) to 12' 7/8" (368 cm) with extra steps |
| Number of Steps | 10 to 16 (depending on height) |
| Landing Configuration | 60° landing with square opening, or direct landing at the floor slab |
| Railing | Hot-dip galvanized steel vertical columns, spacing under 3-7/8" (10 cm) between columns |
| Direction of Ascent | Clockwise or counter-clockwise |
| Opening Required | Minimum 2" larger than stair diameter on each side: 49" x 49" for 47"D, 57" x 57" for 55"D, 65" x 65" for 63"D |
| Code Compliance | IRC Compliant: 63"D only. Always verify requirements with your local code enforcement officer. |
| Package Dimensions | Approx. 45" x 37" x 24" (114 x 94 x 60 cm); may vary by configuration |
| Ceiling Opening Required | Stair diameter + 2" (5 cm) |
| Country of Origin | Made in Italy |
Number of Steps vs. Floor-to-Floor Height
| Number of Steps | Packaging | Height Between Floors (H) |
|---|---|---|
| 10 steps | 1 box | Min. 6' 10-5/8" (210 cm) to Max. 7' 6-1/2" (230 cm) |
| 11 steps | 1 box | Min. 7' 7" (231 cm) to Max. 8' 3-5/8" (253 cm) |
| 12 steps | 1 box | Min. 8' 3-1/4" (252 cm) to Max. 9' 5/8" (276 cm) |
| 13 steps | 1 box | Min. 8' 10-1/2" (273 cm) to Max. 9' 9-3/4" (299 cm) |
| 14 steps | 1 box + 1 extra step | Min. 9' 7-3/4" (294 cm) to Max. 10' 6-3/4" (322 cm) |
| 15 steps | 1 box + 2 extra steps | Min. 10' 4" (315 cm) to Max. 11' 3-7/8" (345 cm) |
| 16 steps | 1 box + 3 extra steps | Min. 11' 1/4" (336 cm) to Max. 12' 7/8" (368 cm) |
Note: An extra section of internal post is required for finished floor-to-floor heights over 10' 5-5/8" (319 cm).
| Weight(LBS) | 0.000000 |
|---|---|
| Request Quote | No |
