![outdoor exterior spiral staircase marretti 1 outdoor exterior spiral staircase marretti 1](https://www.marretti.com/site/wp-content/uploads/2022/10/outdoor-exterior-spiral-staircase-marretti-1.webp)
Spiral glass or metal outdoor staircases
A distinctive element of each Marretti collection is the spiral staircase with non-slip glass steps, suitable for outdoor spaces. The thickness of the step is variable (1 1/4″ – 1 41/64″) in relation to the diameter of the staircase.
![outdoor exterior spiral staircase marretti5 outdoor exterior spiral staircase marretti5](https://www.marretti.com/site/wp-content/uploads/2022/10/outdoor-exterior-spiral-staircase-marretti5-3.webp)
Spiral staircase all in polished stainless steel AISI 316
![Spiral Stainless Steel Steps Exterior Spiral Stainless Steel Steps Exterior](https://www.marretti.com/site/wp-content/uploads/2022/10/Spiral-Stainless-Steel-Steps-Exterior.jpg)
![outdoor exterior spiral staircase marretti2 outdoor exterior spiral staircase marretti2](https://www.marretti.com/site/wp-content/uploads/2022/10/outdoor-exterior-spiral-staircase-marretti2.webp)
Spiral staircase in polished stainless steel AISI 316 and anti-slip glass steps
![exterior galvanized steps exterior galvanized steps](https://www.marretti.com/site/wp-content/uploads/2022/10/exterior-galvanized-steps.jpg)
Spiral staircase in polished stainless steel AISI 316 and hot process galvanized steel steps
![exterior galvanized steps2 exterior galvanized steps2](https://www.marretti.com/site/wp-content/uploads/2022/10/exterior-galvanized-steps2.jpg)
![boxed stringers stairs boxed stringers stairs](https://www.marretti.com/site/wp-content/uploads/2023/05/boxed-stringers-stairs-2.jpg)
Helix-shaped staircase with boxed metal stringers, hot-dipped galvanization and epoxy painted, featuring metal risers and steps covered in teak wood, and a teak wood handrail.
Exterior Guards
in polished stainless steel AISI 316 with Rectangular post 2 3/8” – 25/32” with polished stainless steel AISI 316 handrail 1 41/64”
![outdoor staircase marretti1 1 outdoor staircase marretti1 1](https://www.marretti.com/site/wp-content/uploads/2022/10/outdoor-staircase-marretti1-1.jpg)
![outdoor staircase marretti2 1 outdoor staircase marretti2 1](https://www.marretti.com/site/wp-content/uploads/2022/10/outdoor-staircase-marretti2-1.jpg)
The guards are in stainless steel AISI 316 without welding and assembled by mechanical hooks only. They can have a glossy or satin finish.
![ringhiere scale marretti esterni1 768×512 1 ringhiere scale marretti esterni1 768x512 1](https://www.marretti.com/site/wp-content/uploads/2022/10/ringhiere-scale-marretti-esterni1-768x512-1.jpg)
![ringhiere scale marretti esterni2 1200×800 1 ringhiere scale marretti esterni2 1200x800 1](https://www.marretti.com/site/wp-content/uploads/2022/10/ringhiere-scale-marretti-esterni2-1200x800-1.jpg)
![ringhiere marretti 768×1024 1 1 ringhiere marretti 768x1024 1 1](https://www.marretti.com/site/wp-content/uploads/2022/10/ringhiere-marretti-768x1024-1-1.jpg)