Custom Decks That Fit Your Life — and Your Landscape
Custom Deck Design & Construction Services in Montana
Thoughtful Design Built for Montana Lifestyles
What to Expect from Our Custom Deck Design Process
Every deck starts with a conversation. We begin with an on-site consultation to understand your goals, budget, and property layout. Whether you want a cozy platform deck for morning coffee or a multi-tiered structure with built-in seating and lighting, our team maps out the possibilities. We consider factors like slope, sunlight, drainage, and local zoning codes to ensure every element is safe, functional, and beautiful. Using 3D design software, we preview your deck before any materials are ordered—so you know exactly what you're getting.
Everything Starts With a Smart Layout
What We Consider During Custom Deck Planning
From lot slope to sun exposure, we think through every detail that affects your deck’s performance and comfort. Our custom deck plans are drawn with use, code, and climate in mind not just style.
Property size, slope & access points
House connection & roof lines
Wind exposure, sun & shade patterns
We Build What We Design With No Outsourcing
Deck Design Backed by Engineering Know-How
Montana weather brings extreme temperatures, snow loads, and shifting soils so your deck design needs more than good looks. Our team builds to IRC standards and local code for each county or city. We collaborate with structural engineers when needed to ensure joist spans, footings, and support beams meet or exceed load-bearing specs. If your site requires soil testing or HOA approvals, we handle it. The result: a beautiful deck that’s also structurally sound and built to last.
Material Choices That Fit Montana’s Climate
Composite or Wood? We Help You Decide
Choosing the right material is key to long-term performance. In Montana’s varied climate from snowy Bozeman to sunny Helena we recommend materials based on exposure, maintenance preference, and budget. Composite decking (like Trex or TimberTech) offers low-maintenance durability, while cedar and pressure-treated lumber provide a timeless look with a more natural finish. We walk you through the pros and cons of each, considering aesthetics, lifespan, and how the surface will feel underfoot in different seasons.
We Handle Every Step from Sketch to Final Screw
Design-Build Services That Keep You in Control
With Alliance Deck Builders of Montana, you’re never left guessing. We manage the entire process from design and permits to material sourcing and construction scheduling. You’ll receive updates at every stage and approve the final plan before we break ground. Our crew arrives on time, works cleanly, and finishes with a walkthrough to ensure every detail is right. Need upgrades later? Our team remains available for maintenance, add-ons, or repairs down the line.
Why Homeowners Across Montana Choose Us
Tailored Design Plans: Every deck is custom-designed to match your lifestyle, space, and goals.
Local Code Expertise: We build to Montana’s zoning and snow load standards no shortcuts.
Premium Materials: We source trusted decking brands built to endure harsh mountain weather.
Clear Communication: You’re never in the dark. We keep you informed from start to finish.
Proven Craftsmanship: Over 300 decks built across Montana with consistent five-star reviews.
Don't worry, we can help!
More Than Design We Deliver Peace of Mind
From your first consultation to final inspection, we treat every deck like it's our own. Our transparent process eliminates surprises, and we provide clear timelines so you know what’s happening when. Plus, we back all custom design projects with manufacturer warranties and workmanship guarantees. This is outdoor living you can count on—for years to come.
Licensed and insured across Montana
Full permitting and HOA coordination included
Workmanship warranty on every project
From Missoula to Billings, We Know Montana Decks
Local Knowledge Makes All the Difference
Montana homes face unique challenges snow loads in Kalispell, wind exposure in Havre, and shifting soils in Butte. Our design team works with regional nuances in mind, including HOA preferences in Whitefish and permitting timelines in Helena. Whether you’re building on flat ground or a sloped lot, we design decks that fit the terrain and thrive in our extreme climate. That means better drainage, safer footings, and decks that look right at home in the Big Sky landscape.
What Homeowners Ask About Custom Deck Design
Montana Deck Design FAQs
We’ve helped hundreds of Montana homeowners turn rough sketches into stunning outdoor spaces. Here are some common questions about the process:
How much does a custom deck design cost?
A design-only project typically ranges from $500–$2,000 depending on complexity. Many clients roll this into full build costs.
Do you handle permits and HOA approvals?
Yes. We take care of all permitting, HOA documents, and code compliance based on your city and county.
Can you design multi-level or rooftop decks?
Absolutely. We specialize in multi-level configurations, rooftop decks, and hillside installations throughout Montana.
How long does the design process take?
From site visit to 3D renderings and final plans, the design phase typically takes 2–3 weeks.
Areas We Serve Throughout Montana
Choose the city closest to you!
More Than Design Full-Service Outdoor Construction
Our Complete Montana Deck & Outdoor Services
Deck Design & Construction
We design and build custom decks tailored to your home, lifestyle, and outdoor space—built for comfort, code, and long-term value.
Composite Deck Installation
Durable, low-maintenance decking in brands like Trex and TimberTech. We install with expert framing and clean finishes.
Wood Deck Building
Traditional wood decks built from cedar or pressure-treated lumber, sealed for longevity and built with care.
Deck Repair & Structural Reinforcement
We replace rotted joists, tighten loose rails, and restore sagging stairs—bringing your deck back to safe, usable shape.
Deck Restoration & Refinishing
We clean, sand, and seal old decks to restore natural color and extend the life of your outdoor space.
Multi-Level Deck Construction
Tiered decks add dimension and function. We build secure, attractive multi-level systems with unified stairs and rails.
Deck Extensions & Re-Decking
We extend existing decks or replace worn boards with modern composite or sealed wood—saving the foundation when possible.
Covered Decks & Patio Roofs
From pergola-style shade to full patio roofs, we protect your deck space from rain, sun, and snow with stylish coverage.
Screened-In Porches & Sunrooms
Enjoy fresh air without the bugs. We build screened rooms and glass-walled sunrooms for relaxing in all weather.
Outdoor Kitchens & Grilling Stations
We build grilling areas, outdoor sinks, and kitchen setups into decks—complete with fire-safe materials and smart layout.
Pergolas, Gazebos & Arbors
Add architectural charm and functional shade with custom pergolas, gazebos, or arbors—built freestanding or integrated.
Pool Deck & Hot Tub Surrounds
Slip-resistant, water-safe decks designed to wrap hot tubs or pool edges with beauty and durability.
Detached Garages & Sheds
We construct code-compliant outbuildings including garages, workshops, and storage sheds with matching exterior finishes.
Custom Deck Railings & Stairs
We fabricate and install deck railings and stairs to match your design goals and meet local safety codes.
Commercial Deck Projects (Restaurants, Rooftops, etc.)
From rooftop lounges to restaurant patios, we build commercial-grade decks that handle heavy use and meet ADA compliance.
Innovation
Fresh, creative solutions.
Integrity
Honesty and transparency.
Excellence
Top-notch services.
Ready to Build? Let’s Talk Decks
Whether you're looking to add a sun-soaked patio, rebuild a storm-damaged deck, or design a multi-level masterpiece, we’re ready to help. Alliance Deck Builders of Montana brings expertise, materials, and trust to every job no matter the size. Contact us today to schedule your free consultation and let’s bring your outdoor vision to life.
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