Pergola cost in Fort Collins CO by size
Size and material set a pergola's price. Wood pergolas, cedar or treated timber, sit in the Denver-area range of $25.60 to $52.20 per square foot installed; louvered aluminum systems run roughly double. The ranges below include the posts, beams and rafters, but not a new patio or deck under them.
| Size | Sq ft | Wood ($25.60 to $52.20) | Louvered ($55 to $125) |
|---|---|---|---|
| 10 x 10 ft | 100 | $2,560 to $5,220 | $5,500 to $12,500 |
| 12 x 12 ft | 144 | $3,686 to $7,517 | $7,920 to $18,000 |
| 12 x 16 ft | 192 | $4,915 to $10,022 | $10,560 to $24,000 |
| 16 x 20 ft | 320 | $8,192 to $16,704 | $17,600 to $40,000 |
| 20 x 20 ft | 400 | $10,240 to $20,880 | $22,000 to $50,000 |
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Rates: handoff.ai Denver wood pergola data; Angi, How Much Does a Motorized Pergola Cost? (2026). Permits and any engineering are extra. Quotes vary by site.
What changes a pergola's price
Wood species
Angi lists cedar at $25 to $35 per square foot for materials and aluminum or vinyl at $10 to $30, but material is only part of the bill. Cedar costs more than treated pine and needs sealing in Colorado's dry sun; treated timber is cheaper and heavier.
Attached or freestanding
An attached pergola saves two posts but needs a ledger on solid framing, and in Fort Collins any attached pergola needs a permit. A freestanding one needs four or more posts and cross bracing.
On a deck
A pergola bearing on top of a deck needs engineered plans in Fort Collins, which adds the engineer's fee. Running the posts down to their own footings can avoid it.
Extras
Top slats for more shade, string-light hardware, a fan, privacy screens and, on louvered systems, motors, rain sensors and heaters. A solid roof turns a pergola into a patio cover, priced on the covered patio cost page.
Kit or built
A kit pergola is cheaper to buy and quicker to stand up, but the members are often light for a 16 or 20 foot span and the size is fixed. In Fort Collins an aluminum or composite kit that needs a permit also needs a stamped design, and the City's permit page says prefab pergolas must be designed and stamped by a Colorado-licensed structural engineer. A built wood pergola is sized to the space and can follow the City's standard details. See the Fort Collins pergola permit guide.
