Galvanized Exterior Spiral StairsRugged and Durable Spiral StairsStrong and Hard-Wearing Exterior Steel StairsA Safe and Sturdy Staircase for any Exterior ApplicationFor exterior steel stairs applications that are both weather-resistant and maintenance free, Salter’s galvanized spiral staircase provides an excellent solution. Our hot-dip galvanization process involves coating each individual component of your metal spiral staircase with a molten zinc, creating an alloy bond that armors the metal stair against harsh outdoor elements.Immediately following the galvanization process, the stair turns a shiny chrome. Following the “weathering” period (where gases slowly escape the stair) the stair turns a battle-ship gray that offers a rugged and worn charm perfect for shore home and other seaside settings. Options like diamond plate treads and fan grating make our galvanized exterior staircase kits even more reliable for outdoor applications. Combine these options with our Continuous Sleeve build and your stair has a custom look that feels built from one piece.Request Your Free ConsultationFor more information on Galvanized Stairs(855) 585-1327Call our free consultation numberRequest Free ConsultationORVisit our Galvanized Stair GalleryThe Durability of Galvanized Exterior Steel StairsIndustrial Modern DesignThe Galvanized Exterior spiral staircase has a metallic silver finish that is great for any industrial style home. The smooth lines and diamond plate treads are perfect for modern designs.Functional SimplicityWhen you’re looking for a simple way to access a lower level from your deck, the Galvanized Exterior stair is the perfect outdoor staircase solution. The galvanizing process lengthens your stair’s life making it a cost effective option.View GalleryDesign Your Aluminum Deck Spiral StairWe Offer a Wide Range of Styles and Options to Create Your Custom Stair SolutionCall us to speak with an expert stair designer for help choosing the right stair options and other important decisions like location, measurements, rotation, design, safety, and building code considerations.TreadsRailingsFinishesTreadsRailingsFinishesAluminum Tread StylesSalter’s Aluminum Deck treads offer curved and straight options for any aesthetic Treads are also available in closed riser options for code and grated tread for safety.StandardStandard closed end tread.Curved UpClosed end tread with curved, thin profile.Long CurvedClosed end tread with longer curve and thin profile.Code RiserClosed end tread with code riser.Hand Weld GratedClosed end tread with grating to allow precipitation to fall through.Aluminum Tread CoveringsCoverings are offered in solid mahogany or teak, both woods that are ideal for outdoor settings Non-slip diamond plate also offered for added safety. View over ten wood species options here.Diamond PatternDiamond pattern tread with non-skid surface.Solid WoodWood tread covers in 11/16″ or 1 3/4″ thickness. Offered in mahogany or cedar. Salter can calculate your project’s exact floor to floor height and custom cut tread sleeves to match your needs perfectly. This gives you a clean center column and a stair custom fit to your space.Hand RailsEven Salter’s wooden handrails, available for aluminum , come in one solid piece to add to the handcrafted appeal of your stair.Coiled Aluminum1 1/2″ O.D. with dome end caps.Solid WoodCustom manufactured wooden offered in mahogany or cedar.BalustersAll Salter balusters are individually mitered to the angle of your stair to give you an exact fit.Custom TipIndividually mitered to stair angle with holes pre-drilled.ClassicAluminum Baluster 1″ round tubing.Single RingAluminum Baluster 1″ round tubing.Double RingAluminum Baluster 1″ round tubing.Scroll SteelAluminum Baluster 1″ round tubing.Platform and Well EnclosuresOur well enclosures are designed to blend perfectly into your stair’s railing to create a uniform look of quality.60° Angle PlatformCompletes the rotation of a stair when exiting onto an upper floor.90° Pie Wedge PlatformCompletes the rotation of a stair when exiting onto an upper floor. Salter’s railing system is not only available in several looks from minimalist to ornate for the balusters, but also much stronger than competitors thanks to our use of 1″ diameter tubing over industry standard 3/4″.PaintOur powder coating process starts with completely cleaning the stair’s surface to allow for a much smoother application. We also inspect each component individually for finish quality. View our finish options.Powder CoatCustomize your stair in any color on the Pantone perfect spectrum or RAL color systems. Salters powder coating can be customized to any color on the Pantone perfect spectrum or RAL color matching systems.Experience Unmatched Quality & ServiceConsultative ProcessAs part of our design process, you have access to our spiral stair experts through a FREE consultation to ensure we design the perfect stair solution for you.LEARN MOREShips Straight to YouAll spiral staircases are packaged into a kit for the easiest and most cost-effective transport through the best local carriers, and delivered anywhere in North America.LEARN MOREEasy InstallationSpiral staircase kits can be built in under a day by two average homeowners and require no special tools. For added support, our team is here to help.LEARN MOREPeace-of-Mind WarrantyYou can be confident in your purchase for years to come with our lifetime warranty on metal fabrication and 5-year warranty on all other materials.LEARN MOREFree Consultation & PricingYou’ll get quick and accurate pricing plus our expert designers can design the perfect stair solution based on your requirements and budget.Call for your free consultation and pricing.Get quick and accurate pricing. Plus, our expert designers can design the perfect stair solution based on your requirements and budget.Call for your free consultation.(855) 585-1327Or fill out this form to receive our detailed product brochure and to schedule your free consultation.Name* First Name Last Name Email* Phone* We value your privacy. Information collected will never be sold, shared, or rented to others.