Built to Host, Built to Last—Outdoor Spaces That Perform

Commercial Deck Projects in Wisconsin

Designed for Your Space, Engineered for the Crowd

Code-Compliant Decks for Public and Commercial Use

Commercial decks face stricter requirements—and we meet them all. Our team builds to IBC code with structural engineers, commercial-grade fasteners, and load-rated framing. Whether you need a dining deck, a rooftop patio, or multi-floor balconies, we design every project to handle the weight, meet ADA access rules, and pass inspections the first time.

Function, Flow, and First Impressions

Deck Designs That Support Business and Experience

We understand how outdoor space affects the way people experience your property. Our designs optimize guest flow, lighting, safety, and style—whether for a bar patio, hotel rooftop, or shared apartment deck. We work with architects, property managers, and owners to create decks that look great, serve their purpose, and stay in spec.

Load-rated framing for high-traffic use

ADA stairs, ramps, and handrails

Composite, wood, or steel finishes

Restaurant deck in Milwaukee with cable railing, stair access, and rooftop dining

From Concept to Compliance

Commercial Decks That Pass Every Inspection

We build decks that are made to be seen—and inspected. From structural plans to finish materials, everything is engineered for compliance with Wisconsin’s commercial building codes. We work closely with engineers, inspectors, and municipal staff to streamline approvals and avoid delays. Whether it's a rooftop addition or ground-level expansion, our projects meet safety, access, and use requirements—every time.

Composite rooftop deck with steel railing and bar seating built over retail building in Madison

Materials That Match the Mission

Built Tough, Finished Beautifully

A good commercial deck balances strength and curb appeal. We build with composite, hardwood, pressure-treated, or fire-rated options—depending on your needs and location. Our hardware is industrial-grade. Our fasteners resist corrosion. And our finishes—from cable rail to modern wood slats—help your brand show through. Whether it’s outdoor seating or a client lounge, your deck reflects your business.

We Know Business Timelines Matter

Fast Turnarounds and Professional Execution

We respect your time, brand, and operations. Our team sticks to timelines, keeps job sites clean, and communicates clearly from start to finish. Need to phase the build around business hours or work off-hours? We’ll plan accordingly. You’ll get prompt updates, smooth coordination with other trades, and a build that enhances—not disrupts—your business.

Deck addition to restaurant patio area with seating zones and walkways in Waukesha

Why Businesses Choose Alliance for Commercial Decks

Code-Ready Construction: Built to IBC standards with full engineering support.

Brand-Forward Designs: Clean, modern builds that match your image.

Flexible Scheduling: Work done off-hours or in phases to avoid disruption.

ADA Access Built In: Stairs, ramps, and railings that meet all access needs.

Rooftop & High-Traffic Capable: Framed and fastened to handle serious weight and weather.

Don't worry, we can help!

How We Build It Right for Business

Every commercial deck starts with a call and a consult. We’ll review your layout, occupancy plans, and intended use—then engineer a design that checks every box. You’ll get stamped plans, clear pricing, and a team that works clean and communicates often. From bars and breweries to apartment complexes and hotels, we build structures that deliver value and last for years.

Engineered load ratings and stamped plans

Coordination with inspectors and city staff

Material samples and layout previews provided

Commercial Projects of All Sizes

Built for Restaurants, Rentals, Hotels & HOAs

We work with restaurant owners, multi-family property managers, retail developers, and HOAs to build decks that support their daily use. Whether you need an outdoor bar platform, a shared seating deck, or rooftop access for private units, our builds are fully custom and code-ready. We adapt to site limits, elevation, and existing structures for seamless additions and upgrades.