10x10 pergola plans
Beta — engineering review in progressThe everyday size: room for four chairs and a small table under an open, free-standing frame. The plan uses 4 6x6 posts on uplift-rated post bases and 12 in round, 36 in deep concrete footings, 2-2x10 beams spanning 6' 6" and 2x8 rafters at 24 in. Estimated materials: $761–$1,145 pressure-treated, $1,093–$1,660 with cedar above the posts.
Free pergola previewOther pergola models at this size
- Shade-slat pergola
The classic frame with rafters closer together and 2x2 slats across the top for about half shade.
10' x 10', $1,079–$2,510
- Long 6-post pergola
Six posts carry a 14 to 16 ft long pergola, for a long patio, a dining table and a lounge corner under one frame.
Not offered at this size.
What the materials cost
Economy materials
$761 to $1,145
Pressure-treated wood throughout. Same posts, sizes, footings and connectors.
- Lumber
- $342–$477
- Concrete and footings
- $176–$248
- Structural connectors
- $174–$300
- Fasteners and hardware
- $69–$120
Durable materials
$1,093 to $1,660
Cedar beams, rafters and braces. Same posts, sizes, footings and connectors.
- Lumber
- $674–$992
- Concrete and footings
- $176–$248
- Structural connectors
- $174–$300
- Fasteners and hardware
- $69–$120
Estimates from typical US home-center prices; your local prices will vary. Prices last updated: Oct 23, 2026. Not included: sales tax, delivery, tools, gravel/base material, paint or stain.
Plan specifications & limitations
Rafter span
2x8 at 24 in: at most 8' 8" (deck joist table, conservative for an open pergola)
In this plan: 8' · Source: web-media.awc.org
Rafter overhang
At most 1' 9"
In this plan: 1' · Source: web-media.awc.org
Beam span
2-2x10: at most 7' (deck beam table, conservative)
In this plan: 6' 6" between posts · Source: web-media.awc.org
Posts
6x6 pressure-treated on uplift-rated post bases; 6x6 posts allow 14 ft (IRC Table R507.4)
In this plan: 8' to the beams · Source: codes.iccsafe.org
Knee braces
Post bases alone do not stop a free-standing frame from rocking; braces at every post both ways
In this plan: 4x4, 24 in legs, 1/2 in lag at each end · Source: Our design choice
Uplift
Every rafter tied to each beam; posts in uplift-rated post bases
In this plan: Hurricane ties and post bases · Source: buildsite.com
Footings
At least 12 in below grade; frost protection not required for small free-standing accessory structures (local codes may still ask)
In this plan: 12 in round, 36 in deep (deeper for uplift) · Source: codes.iccsafe.org
Height
Eave at most 10' for that exception
In this plan: 8' under the beams · Source: codes.iccsafe.org
| Rule | What every plan uses | In this plan | Source |
|---|---|---|---|
| Rafter span | 2x8 at 24 in: at most 8' 8" (deck joist table, conservative for an open pergola) | 8' | web-media.awc.org |
| Rafter overhang | At most 1' 9" | 1' | web-media.awc.org |
| Beam span | 2-2x10: at most 7' (deck beam table, conservative) | 6' 6" between posts | web-media.awc.org |
| Posts | 6x6 pressure-treated on uplift-rated post bases; 6x6 posts allow 14 ft (IRC Table R507.4) | 8' to the beams | codes.iccsafe.org |
| Knee braces | Post bases alone do not stop a free-standing frame from rocking; braces at every post both ways | 4x4, 24 in legs, 1/2 in lag at each end | Our design choice |
| Uplift | Every rafter tied to each beam; posts in uplift-rated post bases | Hurricane ties and post bases | buildsite.com |
| Footings | At least 12 in below grade; frost protection not required for small free-standing accessory structures (local codes may still ask) | 12 in round, 36 in deep (deeper for uplift) | codes.iccsafe.org |
| Height | Eave at most 10' for that exception | 8' under the beams | codes.iccsafe.org |
Loads
An open frame with no roof, sized with the deck tables (40 psf live + 10 psf dead), which is more than an open pergola carries. Check local snow, wind and frost depth with your building department. Frost depth varies by location: check your local code before you dig.
No roof, no extra loads
Do not add a solid roof, a swing, a hammock or hanging planters heavier than a few pounds: the plan is not sized for them.
Wind and uplift
Uplift-rated post bases, a hurricane tie on every rafter and knee braces at every post. In high-wind areas, ask your building department.
Footings
Round concrete footings on undisturbed soil, 36 in deep; local frost depth may ask more. Never bolt the posts to an existing patio slab.
Permits and HOA
Many cities and counties require a permit for structures above 120 sq ft. Some require one for smaller ones. Many places need a permit for a deck or a pergola; HOA rules may limit size, height or color. Checking permits, setbacks and HOA rules is your responsibility.
Not an engineered plan
The plan is a general guide built from published prescriptive tables. It is not stamped or engineered, and it is not a substitute for engineering or local approval.
Questions
How many posts does a 10x10 pergola pergola need?
Do I need a permit?
More in our guide: Pergola post, beam and rafter sizes
Start this project
Two pergola concepts sized for your patio, free in 3D.