The Top 13 Prefab Outdoor Stair Kits

Last updated on September 4, 2023

Prefab outdoor stair kits are an innovative solution to bring functionality and style to outdoor spaces, and here are the best manufacturers that make them.

Have you ever wanted to enhance the exterior design of your home, but felt overwhelmed by complicated renovations or costly upgrades? Look no further than prefab outdoor stair kits!

These customizable and convenient solutions are ideal for DIY enthusiasts, homeowners on a budget, and anyone looking to add stylish functionality to their outdoor space. Say goodbye to the hassle of traditional staircase construction with these easy-to-assemble kits that offer endless possibilities for elevating your home’s curb appeal.

Fast-Stairs Outdoor Stair Stringers Kit

Contact phone: (346) 425-8487

Facebook page: Facebook

Services and products:

Easy to ship and carry (max. 70 lb packages)
Adjustable in height and width
Powder coated, rust proof
Super solid (1 ton capacity)
Quick and easy assembly

Fast-Stairs® is a trusted manufacturer of outdoor stair kits, offering easy-to-install, adjustable steel stair stringers. Their products are powder-coated and rust-resistant, built to last and can be customized to fit any project needs.

With their space-saving C models, they provide an economical solution for reliable outdoor stairs without compromising quality or safety.

Paragon Stairs’ Prefab Outdoor Stair Kit

Manufacturer: paragonstairs.com

Facebook page: Facebook

Services and products:

Wide range of prefabricated stairs for all settings and project types
Inspection of all prefabricated stairs to ensure in-house quality and safety standards are met
Long-lasting stair solutions for indoor and outdoor projects
Convenience of shipped straight to your door
Custom options available for indoor prefabricated staircases

Paragon Stairs is a reputable manufacturer that offers a range of top-quality prefabricated stairs for both indoor and outdoor spaces. They provide custom options using a variety of materials, all while maintaining their strict quality and safety standards.

With Paragon Stairs, you can expect long-lasting stair solutions delivered right to your door.

Discount Quality Stairs

Contact phone: (800) 718-3011

Services and products:

Custom builder for ordering and installing stairs
Variety of stair types including L shaped, double half open, full open, half open, boxed, and double open
Savings up to 30% compared to field built stairs
Free prefab stairs ebook
Space saving and customer service options available

This manufacturer offers high-quality prefab outdoor stair kits that can be customized and easily installed by customers. With a user-friendly custom builder tool, customers can choose from various styles, wood types, and space-saving options to get the perfect stairs for their needs.

The company boasts exceptional customer service and has many satisfied customers who attest to the quality of their products.

Straight and Spiral Stair Kits by Duvinage

Manufacturer: duvinage.com

Contact phone: (301) 733-8255

Facebook page: Facebook

Services and products:

Straight and spiral stair kits for interior and exterior use
Best-in-class IRC code compliant spiral stair kit
The Chicago product line with Duvinage features throughout
Rintal product line with unique Italian spiral and straight designs
Various customization options including wood treads, extra rail, and paint color.

This company offers a wide selection of high-quality straight and spiral stair kit products for both indoor and outdoor use, with customization options available. Their Chicago product line boasts top-notch features, while their Rintal line offers unique Italian designs.

All products are made in the USA or Italy and ready to ship.

Exterior Spiral Stair Kit

Manufacturer: spiralstairwarehouse.com

Services and products:

Basic Non-Code Outdoor Kit
Basic Code Outdoor Kit
Smooth steel treads & landing
Pre-drilled to accept wood coverings
Various diameter options for outdoor stair kits

This manufacturer offers high-quality Prefab Outdoor Stair kits with smooth steel treads and landing. Their Basic Non-Code Outdoor Kit includes a black primer finish, while their Basic Code Outdoor Kit features black primer finish and Mill finish aluminum handrail that is pre-drilled to accept wood coverings.

They also provide different diameter options to choose from depending on the floor-to-floor height required.

Karina Modular Staircase Kit

Contact phone: (888) 782-4758

Services and products:

Space-saving staircases for narrow access areas
Complete stair kits with all necessary components included
In-stock availability for immediate delivery to most US locations
Flexibility in application due to ingenious supporting structure
Balcony rail kits available to complete the contemporary appearance of the staircase

This company offers a space-saving stair solution for tight spaces such as lofts or attics. The Karina modular stair kit comes complete with everything needed for easy assembly and does not require painting, welding, staining or sealing.

Available in stock for quick delivery to most US locations, this all-in-one unit is a stylish and functional way to maximize space without sacrificing safety or aesthetics.

Regal Ideas

Manufacturer: regalideas.com

Facebook page: Facebook

Services and products:

Prefab outdoor stair kit with easy to install stair system
Aluminum stair stringers available in 1 to 9 step tread increments
Stair treads, riser covers, and connector kit included
Graspable handrail and inline stair post for safety
Meets and exceeds Building Code specifications in U.S. and Canada

Regal Ideas is an award-winning company that offers a hassle-free, easy to install Prefab Outdoor Stair kit. Their stair systems are engineered to meet and even exceed building code specifications in the US and Canada.

With over 4400 lbs of weight capacity per step, Regal Ideas provides a durable and safe option for any outdoor living space.

Eureka Steel Circular Staircase

Manufacturer: stairkit.com

Services and products:

Loft Stairs
Karina Stairs
Top Star Stairs
Kompact Stairs
Sky030 Steel Outdoor Spiral Stairway

This company offers a range of outdoor stair kits that include the Sky030 steel spiral staircase. The galvanization process used during manufacturing guarantees high resistance and durability, making them ideal for outdoor installations.

The spiral staircase is available in 3 different diameters ranging from 47 inches to 63 inches.

Spiral Stair Kit – Buy Railings

Facebook page: Facebook

Services and products:

Basic spiral staircase kit for external use with adjustable rise
Railings and modular steel supports with hot-dip galvanizing treatment
Steps are studded sheet metal in hot-dip galvanized steel
Handrail made of Moplen – a type of polypropylene
Product updates and customer support through FAQs, contact information, and limited warranty

This company offers a basic spiral staircase kit for external use, with adjustable rise and railings. The modular steel supports are treated with hot-dip galvanizing and nuts and bolts in stainless steel.

The stairs are made of studded sheet metal in hot-dip galvanized steel, while the handrail is made of Moplen – a type of polypropylene.

RollingBarge Outdoor Stair Kit

Facebook page: Facebook

Services and products:

Lightweight kits for building stairs into a hillside
Bolt-together aluminum stairs for easy assembly and installation
DIY hillside stairs with simple instruction manual
Safety-approved stair system with minimal environmental impact
Stairs designed to free-span from 12′ to 40′ for installation on cliffs

Rolling Barge offers lightweight and easy-to-assemble kits for building stairs into hillsides. Their aluminum stairs are designed to be installed on all types of terrain, shoreline access, and other exterior applications with minimal environmental impact.

They offer handrails in three different ways and are capable of spanning from 12′ to 40′ on cliffs with just one connection at the top and one on the ground.

Prefab Outdoor Steps & External Staircases

Contact phone: (717) 956-9182

Facebook page: Facebook

Services and products:

Custom manufactured stair kits
Staircase components
Steel fabrication services
High-quality prefab outdoor steps
Quality flat pack stair assembly

Advantage Stair Kits is a highly experienced and trusted manufacturer of high-quality prefab outdoor stair kits in Australia. They custom manufacture every kit to meet your specific needs and offer staircase components as well as steel fabrication services using cutting-edge technology.

If you’re looking for easy DIY installation with sturdy, durable, and trustworthy stairs, Advantage Stair Kits has exactly what you need.

Prefab Exterior Stairs by REDD Team

Contact phone: (800) 648-3696

Services and products:

Prefab aluminum exterior stairs
Safe and strong access to industrial and commercial buildings, classrooms, recreational facilities, marine facilities, and modular buildings
Durable and non-corrosive stairs that won’t split, rot, or warp
Attractive and versatile stairs with standard and custom color options
Environmentally friendly and recyclable aluminum material

This company specializes in manufacturing high-quality aluminum exterior stairs that are safe, strong, durable, attractive and versatile. Their stairs are constructed from 6000 series aluminum alloy with 6061-T6 for structural strength, making them as strong as mild steel but only 30%-50% as heavy.

They provide catwalks, ramps and decks for industrial and commercial buildings of all kinds.

Vistamation

Manufacturer: vistamation.com

Facebook page: Facebook

Services and products:

Premade IBC Residential & Commercial Metal Stairs for sale for Apartments, Hotels
Powder coat finished premade stairway in choice of standard colors
Shipped unassembled to save on freight. Pre-Welded stairs also available
Custom Stairs and custom landings available as well
Galvanized Pre-made stairs also available.

This company offers premade metal stairs that meet strict building codes, including those in California. The stairs come in a variety of sizes and can be used indoors or outdoors.

Customers can choose from standard colors or select a custom color for an additional cost.