Pergola Builder in Fort Collins CO

A pergola in Fort Collins CO typically costs $30 to $60 per square foot installed, about $4,253 for a 100 square foot pergola on Angi's 2026 national numbers. Pineridge Deck Pros builds cedar and timber pergolas over patios and decks, freestanding or attached to the house, sized and permitted to the City's 2026 pergola guide.

Pergola builder in Fort Collins CO

A pergola is posts, beams and an open roof of rafters. It frames a patio or deck, gives filtered shade, and carries lights, a fan or climbing plants, without the cost and weight of a solid roof.

Wood is the usual choice. Western red cedar and treated timber both work; cedar weathers to silver if left alone and holds a stain well. Colorado's dry air and strong sun check and split wood that isn't sealed, so a finish goes on after the pergola is built and gets renewed every year or two.

Freestanding or attached

A freestanding pergola stands on four or more posts of its own, which keeps it clear of the house and its roof. The City recommends cross bracing on freestanding pergolas to keep them from racking in wind. An attached pergola hangs one side on a ledger bolted to the house, which means a permit at any size in Fort Collins, and an engineer if the ledger would go on a roof overhang, rafter tails, or brick or stone veneer.

Wood pergola with a reed-lined roof over a brick courtyard, a picnic table and bench, string lights under the beams — A reed-roofed pergola over a patio table, lit from the beams.

Fort Collins pergola rules

The City's Residential Pergola Guide (revised March 30, 2026) sets four permit triggers: attached to a house or structure, taller than 8 feet at any point, over 120 square feet, or closer than 3 feet to a lot line. The engineer triggers are a pergola on top of a deck, a beam on hangers, a ledger on an overhang or rafter tails, attachment to veneer, materials not addressed in code (the guide names composite and aluminum), and any pergola over 12 feet tall. Lattice on top needs at least 3 inches between members.

All of it, with the patio cover rules that run alongside, is in the Fort Collins pergola permit guide, or straight from the City's Residential Pergola Guide.

Pergola prices

Pergola costs (2026)

Pergola	Cost	Source
Average, 100 sq ft	$4,253	Angi national; most $2,118 to $6,433
Installed, per sq ft	$30 to $60	Angi national
Wood pergola, Denver area	$25.60 to $52.20 per sq ft	handoff.ai Denver data
Cedar, materials	$25 to $35 per sq ft	Angi
Aluminum or vinyl, materials	$10 to $30 per sq ft	Angi
Fort Collins pergola permit	$110 plus tax	City of Fort Collins

Planning ranges only; quotes vary by site. Louvered systems are on their own page.

Sizes from 10 by 10 to 20 by 20 are worked out on the pergola cost in Fort Collins page.

Cedar pergola beams and rafters against a deep blue sky — Cedar rafters notched over the beams of a pergola.

How a pergola gets built

1
Place it for the sun
Rafters running east to west cast the most shade at midday; turning them, or adding slats on top, shades the low west sun.
2
Freestanding or attached
A freestanding pergola needs cross bracing or posts embedded in concrete. An attached one needs a ledger on solid framing, not on the roof overhang or veneer.
3
Permit when it's over the limits
Attached, over 8 feet tall, over 120 sq ft or within 3 feet of a lot line means a Fort Collins permit; on a deck, aluminum or over 12 feet means an engineer too.
4
Footings and posts
Pier holes are dug, inspected open where a permit applies, and poured; posts stand on manufactured bases.
5
Beams, rafters, finish
Beams, rafters and any top slats go on with the connections the City wants to see, then the wood is sealed or stained.

Pergolas with decks

Pergolas are often built with a new cedar deck so the posts can run down to their own footings. See the deck builder in Fort Collins page for the rest.

Pergola Builder in Fort Collins: Questions

Looking up through the rafters of a wood pergola with blue sky and trees beyond

Pergola rafters breaking up the midday sun.

What is the average cost of a pergola installed?

Angi's 2026 national average is $4,253 for a 100 square foot pergola, with most between $2,118 and $6,433, or about $30 to $60 per square foot. Denver-area data from handoff.ai puts a wood pergola at $25.60 to $52.20 per square foot installed. Size, wood species, an attached ledger and a pergola built on a deck all move the price.

Do you need a permit for a pergola in Colorado?

It depends on the city or county, and in Fort Collins usually yes. The City requires a permit for a pergola that is attached to a house or structure, taller than 8 feet at any point, larger than 120 square feet, or closer than 3 feet to a lot line. A small freestanding pergola under all four limits is exempt. The permit is $110 plus sales tax.

Is it cheaper to buy a pergola kit or build one?

A kit usually costs less in materials, and a built pergola costs less per square foot of real shade. Kits come in fixed sizes and light members, and in Fort Collins aluminum and composite kits count as materials not addressed in code, so if a permit is needed they need engineered plans. A built cedar or timber pergola is sized to the space and the snow, and follows the City's standard details.

How much would it cost to build a 20x20 pergola?

A 20 by 20 pergola covers 400 square feet, so at Angi's $30 to $60 per square foot it comes to about $12,000 to $24,000, and at the Denver wood range of $25.60 to $52.20 about $10,240 to $20,880. A span that wide needs heavy beams or a middle post, and at 400 square feet it needs a Fort Collins permit.

Can a pergola go on top of a deck?

Yes, with engineering. Fort Collins requires stamped plans for any pergola supported directly on top of a deck, because the posts carry their load into deck framing that wasn't sized for it. The other route is running the pergola posts down past the deck to their own footings.

Does a pergola hold snow?

An open pergola holds very little; snow falls through the gaps between rafters. That changes once it gets a solid or louvered roof, a shade cloth left up in winter, or vines thick enough to catch snow. A covered pergola is designed like a patio cover, for the full snow load.

168 sq ft wood pergola at $25.60 to $52.20 per sq ft (Denver)	$4,301 to $8,770
City pergola permit (over 120 sq ft)	$110 plus tax
Example total	$4,411 to $8,880

Pergola Builder in Fort Collins CO