Signs
Sign Post Installation Cost: Concrete Footing + Labor (Per Post)
Cojo
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6 min read
Industry baseline range for installing a sign post in Oregon is $105 to $290 per post, including the post itself, the concrete footing, the locate call, and labor. The post type (steel U-channel, wood, galvanized round), the footing depth (set by frost line), and the soil condition all move the cost. Below is the line-item breakdown property managers should expect on a sign-post quote separate from the panel quote.
Five working components:
The post and footing are separate cost lines from the sign panel. A typical project quote breaks them out so property managers can compare.
Industry Baseline Range
| Item | Baseline Range |
|---|---|
| 8 ft 2 in U-channel steel post | $30 to $55 |
| 8 ft 4x4 pressure-treated wood post | $25 to $50 |
| 2 in galvanized round post | $40 to $80 |
| 6 ft U-channel steel post (low-mount sites) | $25 to $45 |
| 12 ft U-channel steel post (oversized signs) | $55 to $95 |
| Sonotube (12 in diameter) | $8 to $18 each |
| Concrete (per footing, ~0.25 cu yd) | $18 to $40 |
| Excavation labor (per footing) | $30 to $80 |
| Locate call (Oregon 811) | $0 (free) |
| Post-setting labor (per post) | $35 to $90 |
| Total per post installed (steel U-channel + footing) | $105 to $290 |
| Total per post installed (4x4 wood + sonotube) | $95 to $260 |
| Total per post installed (galvanized round) | $135 to $325 |
2026 prices on installed sign posts in Oregon are running 12 to 20 percent above 2022 baselines. Steel post pricing, ready-mix concrete, and crew labor have all moved up. Frost-line specs in Cascade-foothill and high-desert sites have pushed footing depth requirements deeper, which adds excavation and concrete cost.
Six factors that move the post line:
Steel U-channel is the default for parking-lot signage. Wood 4x4 is cheaper per linear foot but requires deeper footings (frost-line considerations) and a sonotube. Galvanized round posts are premium and used for high-vandalism or freeway-adjacent installations.
Most Willamette Valley jurisdictions specify 18-inch frost depth. Coastal sites typically run 24 inches. Cascade-foothill and high-desert sites can require 30 to 36 inches. Each additional 6 inches of footing depth adds about $25 to $40 per post in concrete and excavation labor.
Compacted aggregate soils auger easily and stay shaped during the cure. Loose or sandy soils need a sonotube to hold the footing form. Rocky or hard-pan soils may require a power auger or, in extreme cases, hand excavation -- adding $30 to $80 per post.
Oregon 811 locate marking is free but the wait time is 2 business days. Crews that arrive before the locate is complete sit on standby and inflate labor cost. Bundle locate calls across multiple posts on a single submission to simplify scheduling.
Multi-post jobs amortize crew time. A 1-post install carries the full crew-mobilization cost on one post. A 10-post install drops the per-post cost by 25 to 40 percent because excavation, footing, and post-setting roll through efficiently.
If the post location requires cutting through existing asphalt or concrete, add $30 to $75 per cut depending on saw size and patch material. After cure, the patch around the post needs to be sealed to prevent moisture infiltration.
On a 14,000 sq-ft Springfield apartment property where Cojo replaced 24 perimeter signs in March 2026, the post-installation portion of the job was:
The per-post cost on a 24-post job sat at the lower-middle of the baseline range. Single-post installs run 30 to 50 percent higher per post because the locate call and crew mobilization carry on one post.
For Oregon property managers planning a sign post project:
For the combined panel + post + footing cost, see parking sign installation cost. For the install procedure, see how to anchor a parking sign post. For the broader hub, see the parking signs buyer's guide. For broader site-cost context, see asphalt paving cost Oregon. For Portland-area installs, see parking sign installation in Portland, Oregon or get a custom quote.
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