Cable railing installation in Fort Collins CO
Cable railing is horizontal stainless cable strung between posts, and on the Front Range it exists for one reason: the view. From a deck on the west side of Fort Collins, in Laporte or on a walkout above a Windsor lake, a wall of balusters blocks exactly what the deck was built to look at. Thin cable doesn't.
It is also the railing with the tightest rules. Fort Collins' deck guide calls for cables no more than 3 inches apart and posts no more than 4 feet on center, closer than the 4 inch opening allowed for balusters, because cable flexes when pushed.
Post choices
The posts carry the look and most of the cost. Stainless or black aluminum posts with stainless cable are the clean modern version. Wood posts with cable run cheaper and suit a cedar deck. Composite posts match composite railing systems. Whatever the post, the end and corner posts take the full pull of every cable and get the heaviest anchoring. Glass panels, like the ones on the raised deck below, are the other way to keep a view; they cost more and need regular cleaning.

Fort Collins cable railing rules
- Guards wherever the deck is 30 inches or more above grade, measured 3 feet out from the edge.
- Cable spacing 3 inches maximum; support posts 4 feet on center maximum.
- Posts tied into joists, beams or blocking; side-mounted posts connected to the adjacent joist, no fasteners in end grain.
- Replacing an existing guard railing with cable needs a permit, $110 plus tax.
- Stairs keep a graspable handrail where there are 4 or more risers.
Cable on stairs
Along a stair the cables run parallel to the stringer, still at 3 inch maximum spacing. Once the flight has 4 or more risers, Fort Collins wants a handrail that is graspable, and a wide flat cap on top of the posts doesn't qualify under the 2024 IRC's grip rules (a round rail is 1-1/4 to 2 inches across), so cable stairs usually get a separate handrail mounted to the posts.
The full guard and stair rules are in the deck railing and stair code guide, taken from the Fort Collins Residential Deck Guide.
Cable railing prices
| System | Per linear foot | Note |
|---|---|---|
| Wood posts with cable | $75 to $95 | Lowest cost |
| Aluminum posts with cable | $150 to $240 | Powder-coated, low upkeep |
| Composite posts with cable | $150 to $250 | Matches composite decks |
| Stainless posts and cable | $150 to $285 | Most popular, most expensive |
| Labor | $20 to $50 | Included in the installed figures above |
Source: HomeGuide, How Much Does Cable Railing Cost To Install? (2026). Quotes vary by site.

How cable railing is installed
- 1Lay out the posts
Posts no more than 4 feet apart, with heavier end and corner posts where the cables pull hardest.
- 2Anchor them to the frame
End and corner posts take the cable tension, so they're blocked and bolted into the deck framing, not just to the rim.
- 3Drill and run the cable
Cables are run at 3 inch spacing through the posts, with a tensioner at one end of each run.
- 4Tension and check
Each cable is tightened until a hand push can't open the spacing past what the code allows.
- 5Cap and inspect
A top rail ties the posts together, and the guard is inspected with the deck or as a permitted railing replacement.

