Denver Spiral Stair Kit | Wood & Steel Indoor Staircase
The Denver Spiral Stair Kit brings together the warmth of solid wood and the strength of powder-coated steel in a modular Italian design built for modern interiors. Available in five diameters (41", 47", 55", 63", and 71"), this indoor spiral staircase features solid beech wood treads with Finger Joint technology and a non-toxic, water-based three-layer finish for lasting beauty.
Built for flexibility, the Denver offers adjustable rise options from 8-1/8" to 9-1/2" and a universal landing that adapts to square or round floor openings. The 41" and 47" diameters are ideal for compact lofts and secondary access, the 55" balances comfortable treads with a moderate footprint, and the 63" and 71" diameters are IRC compliant for primary staircase use where local code permits. Designed for floor-to-floor heights up to 12' 7-1/8" with extra steps, the Denver ships ready for straightforward DIY installation with common tools.
Personalize your staircase by combining two beech wood tread finishes (Natural or Walnut) with a White or Black powder-coated steel structure and railing. Choose a plastic, composite (straight or helical), or optional solid wood handrail to complete the design. Elevate your home with the Denver Spiral Stair Kit, where the warmth of real wood meets the strength of steel in authentic Italian craftsmanship.
Denver Spiral Stair Kit Specifications
| Specification | Details |
|---|---|
| Stair Diameter | 41" (105 cm), 47" (120 cm), 55" (140 cm), 63" (160 cm), 71" (180 cm) |
| Step Material | Solid beech wood, 1-5/8" (4 cm) thick, Finger Joint technology, non-toxic water-based 3-layer coating |
| Structure Material | Modular steel elements, powder-coated with matt scratch-proof finish |
| Handrail | Plastic (matches structure color), round composite (straight or helical), or optional solid wood (not available at 41" diameter) |
| Wood Tread Colors | Natural 12, Walnut 25 |
| Structure & Railing Colors | White 22, Black 14 |
| Adjustable Rise | Min. 8-1/8" (20.5 cm) to Max. 9-1/2" (24 cm) |
| Height Range | 6' 8-3/4" (205 cm) to 12' 7-1/8" (384 cm) with extra steps |
| Number of Steps | 10 to 16 (depending on height) |
| Landing | Universal landing with 60° opening (square or round) |
| Railing | Painted steel vertical rails, spacing under 4" (10 cm) between columns |
| Direction of Ascent | Clockwise or counter-clockwise |
| Opening Required | Minimum 2" larger than stair diameter on each side: 43" x 43" for 41"D, 49" x 49" for 47"D, 57" x 57" for 55"D, 65" x 65" for 63"D, 73" x 73" for 71"D |
| Code Compliance | IRC Compliant in 63" (160 cm) and 71" (180 cm) diameters. Always verify requirements with your local code enforcement officer. |
| Package Dimensions | Approx. 45" x 37" x 24" (114 x 94 x 60 cm) per box; 63" and 71" diameters ship in two packages (stair and platform packaged separately) |
| 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' 8-3/4" (205 cm) to Max. 7' 10-1/2" (240 cm) |
| 11 steps | 1 box | Min. 7' 5" (226 cm) to Max. 8' 8" (264 cm) |
| 12 steps | 1 box | Min. 8' 1" (246 cm) to Max. 9' 5-3/8" (288 cm) |
| 13 steps | 1 box | Min. 8' 9-1/8" (267 cm) to Max. 10' 2-7/8" (312 cm) |
| 14 steps | 1 box + 1 extra step | Min. 9' 5" (287 cm) to Max. 11' 1/4" (336 cm) |
| 15 steps | 1 box + 2 extra steps | Min. 10' 1-1/4" (308 cm) to Max. 11' 9-3/4" (360 cm) |
| 16 steps | 1 box + 3 extra steps | Min. 10' 9-1/8" (328 cm) to Max. 12' 7-1/8" (384 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 |
