Home / Decks & Covered Structures
Deck builders in Missoula and the Bitterroot Valley
Decks, covered porches and heavy timber structures — framed for Montana snow load, finished to last decades in freeze-thaw.
Decks that survive a Montana winter
A deck in western Montana takes a beating most decks never see: heavy snow load sitting on the frame for months, hard freeze-thaw cycles that split fasteners, and dry summer sun that cooks an unprotected board. We build for that. Proper footing depth below frost line, correctly sized joists and beams, hot-dip or stainless hardware, and flashing where the ledger meets the house — the detail that causes most deck failures when it is skipped.
You get one crew from footings to final rail. We frame it, deck it, build the stairs, and haul the old structure away.
Materials, honestly compared
Pressure-treated pine is the budget option and holds up fine when it gets stained every few years. Cedar costs more, looks far better, and stays cooler underfoot. Composite and PVC cost the most up front and effectively end your maintenance — a good trade if you plan to stay in the house. We will tell you which one actually makes sense for your deck size, sun exposure and how long you plan to own the place.
Covered porches and heavy timber
Not every outdoor space should be an open deck. A covered porch buys you three more usable months a year in this climate, keeps snow off your entry, and shades the south side of the house in July. We build them in heavy timber post-and-beam — real solid columns and beams with exposed rafters and a finished soffit, not wrapped dimensional lumber pretending to be timber.
That work is structural, so it gets sized for snow load and tied into the existing roof and footings correctly. Pergolas, pavilions and spa surrounds fall in the same category. If you are not sure whether you want an open deck, a covered porch or a mix of both, that is exactly what our design and rendering service settles before you spend money.
What a typical deck project looks like
Walkthrough and measure, written estimate in 48 hours, permit if the deck is over 30 inches high or attached to the house, then roughly one to two weeks of build time for most residential decks. You get photos at framing and a walkthrough before final payment.
Deck and outdoor structure work we do
- New deck design and build — single level, multi-level and wrap-around
- Tear-out and rebuild of failing or unsafe decks
- Railing upgrades: cable, metal picket, glass panel, wood
- Stairs, landings and code-compliant guard height
- Pergolas, privacy walls, benches and planter boxes
- Under-deck drainage and dry-space finishing
- Ledger and flashing repair on existing decks
- Staining and sealing, plus annual maintenance plans
Our work
Decks and covered structures we've built
Our own jobs, photographed on site — heavy timber covered porches, spa surrounds and deck framing. No stock photos.
Questions
Common questions
How much does a deck cost in Missoula?
Most installed decks land between $30 and $70 per square foot. Pressure-treated framing with PT decking sits at the low end; cedar or composite decking with metal or cable railing pushes the top end. Height off the ground, stair count and site access move the number more than people expect. See our deck cost guide for real package pricing.
Do I need a permit for a deck in Missoula?
Inside Missoula city limits a deck is exempt only if it meets all four conditions: free-standing and not attached to the house, 30 inches or less above grade with no roof or arbor, 200 square feet or less, and not serving your primary required egress door. Miss one and it needs a permit. In Missoula County, decks under 30 inches were exempted from building permits in June 2024, though a zoning compliance permit may still apply. We confirm your jurisdiction and handle the application and inspections as part of the job.
Composite or cedar — which should I pick?
Cedar if you want the warmest look and do not mind staining every two to three years. Composite if you want to stop maintaining it entirely and plan to stay in the home long enough to earn back the higher up-front cost.
Can you save my existing frame?
Sometimes. If the footings, beams and joists are sound and correctly sized we can re-deck and re-rail for a lot less than a full rebuild. We will tell you honestly after we get under it — including if the answer is no.
How long does a deck take to build?
Most residential decks take one to two weeks on site once materials land, plus permit lead time. Multi-level decks with roof structures take longer.
Ready for a straight answer on your project?
Free walkthrough anywhere in the Missoula area. Written estimate in 48 hours. No pressure and no sales pitch — just a number you can trust.