Deck railings and stairs in Missoula
Railings and stairs see the most wear on any deck and matter most for safety. Here's what goes into building them right.
A railing is only as strong as the connection between its posts and the deck frame. Lots of older decks have guard posts notched and nailed onto the rim joist, and after years of weather and leaning, those posts loosen. Stairs take a beating too: snow, shovels, ice, and people carrying coolers and firewood up and down.
Which railing is right for you?
| Railing type | Good fit for | Keep in mind |
|---|---|---|
| Wood | Lower cost; matches a wood deck | Needs finish; balusters can loosen |
| Aluminum or steel | Clean lines, little maintenance | Usually a full system with its own posts and brackets |
| Cable | Keeping a view of the mountains open | Needs stout end posts and occasional retensioning |
| Composite or vinyl | Pairing with composite decking | Sleeves slide over structural posts |
When does a deck need a railing?
Under the International Residential Code, which Montana adopts statewide, guards are generally required where the walking surface is more than 30 inches above the ground below, and stairs with four or more risers need a handrail. The building department enforces the exact heights and opening sizes, and a builder working under a permit will follow the current version.
What makes deck stairs safe?
- Risers and treads that are the same size from top to bottom
- Stringers sized correctly and sitting on a firm landing, not bare dirt
- A handrail you can actually grip, and light at night
- Treads that shed water and snow instead of holding it
Winter matters here
Stairs on the north side of a house can stay icy for weeks in a Missoula winter. If you're replacing steps, ask about which way they face, where shoveled snow will go, and how the bottom landing drains. Those choices make more difference in January than the railing style does.
Signs your railings or stairs need attention
- A post or rail that shifts when you push it
- Loose, cracked or missing balusters
- Treads that bounce, split or tip forward
- Stringers that are cracked or soft where they meet the ground
Every deck is priced by the builder after a site visit, once they've measured, looked at the ground and the house, and talked through materials with you. We don't quote prices, and any figure you hear before that visit is a rough guess.
Where we connect you with help
Common questions
Can I replace the railing without replacing the whole deck?
Usually, as long as the framing is sound enough to anchor new posts. The builder will look at how the posts attach before recommending a railing system.
Are cable railings allowed?
Cable railings are widely used, but they still have to meet guard rules for strength and opening size. Ask the builder and the building department.
Related services
More background: Missoula deck guide.
Thinking about a new deck, or worried about the one you have?
Call the number above and a Missoula-area deck builder will talk through what you need.