Stamped concrete typically costs $8-$30 per sq. ft. installed, while a Trex composite deck often runs $25-$55 per sq. ft. The stamped concrete vs Trex deck cost depends heavily on whether the project is a ground-level patio or an elevated deck, plus site preparation, framing, finish choices, and local labor.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Stamped concrete | $8-$12/sq. ft. | $14-$18/sq. ft. | $22-$30/sq. ft. | Installed patio, excluding major demolition |
| Trex deck | $25-$35/sq. ft. | $35-$45/sq. ft. | $45-$55+/sq. ft. | Installed deck; framing and height affect price |
| 300-sq.-ft. project | $2,400 concrete; $7,500 Trex | $4,800 concrete; $12,000 Trex | $9,000 concrete; $16,500+ Trex | Illustrative installed totals |
Installed prices for a 300-square-foot patio or deck
For a straightforward 300-sq.-ft. stamped concrete patio, homeowners commonly pay about $4,200-$5,400 at the national midrange. Trex decking of the same surface area often totals $10,500-$13,500 before unusual grading, stairs, or railings. Trex totals can climb when a deck needs elevated framing or extensive safety features.
Concrete usually has the lower upfront price when both projects are ground-level outdoor spaces. The comparison is less direct when the Trex quote includes a raised platform: its framing creates usable height and access that a patio does not provide. Assumptions: standard residential access, midrange materials, no major demolition, and typical U.S. labor.
What concrete finishing and Trex framing add to the quote
These component ranges show typical shares of installed pricing. Actual bids may group work differently, and delivery, taxes, and overhead can be included in line items or listed separately.
| Project cost item | Stamped concrete | Trex deck | What changes the charge |
|---|---|---|---|
| Materials | $3-$7/sq. ft. | $8-$18/sq. ft. | Concrete mix, color, pattern, board grade |
| Labor | $4-$10/sq. ft. | $10-$22/sq. ft. | Finishing work, framing, access, crew time |
| Equipment and prep | $1-$5/sq. ft. | $2-$8/sq. ft. | Excavation, base, footings, grading |
| Railings, steps, finish | $0.50-$4/sq. ft. | $3-$15/sq. ft. | Sealer, stairs, guardrails, lighting |
Stamped concrete requires forming, pouring, coloring, and pattern stamping, often in a tight work window. Trex crews build footings and a supporting frame, then attach decking and finish edges. Ask each contractor to separate surface materials, labor, site work, and add-ons.
How square footage, deck height, and patterns shift prices
Project size affects the total, but smaller jobs can cost more per square foot because mobilization and setup are spread over less area. A patio under 150 sq. ft. may face a contractor minimum of roughly $1,500-$3,000. Above 400 sq. ft., the per-foot rate may improve if the shape is simple and access is clear.
For concrete, a basic stamped pattern and one integral color may add roughly $2-$6 per sq. ft. over plain concrete; multiple colors, borders, or intricate patterns can add more. For Trex, deck height over 30 inches can trigger guardrails, while a platform 4-8 feet above grade often needs taller posts, stairs, and more substantial framing. Height and detailing can matter more than the decking surface alone.
Three sample quotes show what different scopes include
A 200-sq.-ft. stamped patio on level ground might be quoted at $3,000-$4,000, or $15-$20 per sq. ft., with about 20-30 crew hours for base preparation, pouring, stamping, and cleanup. A basic color and pattern are assumed.
A 300-sq.-ft. ground-level Trex platform could cost $9,000-$12,000, or $30-$40 per sq. ft., with roughly 50-75 crew hours for framing and installation. An elevated 300-sq.-ft. Trex deck with stairs and guardrails may reach $15,000-$22,500, or $50-$75 per sq. ft., and require 80-120 crew hours.
Compare quotes only after matching size, height, finish, demolition, and included features. Hours vary with crew size and conditions; they are not a substitute for a written scope.
Regional labor rates can move installed prices
Labor and material delivery commonly make projects in high-cost metro areas about 10%-25% more expensive than comparable work in lower-cost rural markets. Remote locations may also pay more when crews travel farther or concrete delivery is less convenient. In colder regions, weather can limit the concrete work season and compress contractor schedules.
These are broad planning adjustments, not fixed regional price lists. A local quote should identify whether concrete pumping, disposal, delivery, or a long travel distance is included. Use local bids to replace national ranges before setting a final budget.
Five-year upkeep favors neither surface in every climate
Stamped concrete may need cleaning and resealing every 2-3 years, often costing $1-$3 per sq. ft. per sealing visit. Freeze-thaw exposure, poor drainage, or cracks can increase repair expenses. Trex does not need routine staining, but periodic washing and occasional board or fastener repairs still apply; replacement boards and labor may cost $150-$500 for a small repair.
Over five years, a 300-sq.-ft. concrete patio could require about $300-$900 in resealing, excluding crack repairs. Trex upkeep may be lower for routine care, but that does not erase its higher installation price. Compare expected maintenance alongside the initial quote, especially in harsh weather.
Permits and site work can change the project total
Ground-level patios may not require a building permit in some jurisdictions, but grading, drainage, or local zoning rules can apply. Elevated decks commonly require permits and inspections, especially when attached to a home or high enough to need guardrails. Permit and plan fees may range from $100-$1,000 or more, depending on location and complexity.
Removing an existing patio or deck can add roughly $2-$8 per sq. ft., with concrete demolition toward the higher end. Poor soil, roots, slope, drainage corrections, or difficult equipment access can add several hundred to several thousand dollars. Confirm permit requirements and exclusions before accepting a bid.
Which scope choices reduce the stamped concrete or Trex bill
For stamped concrete, a simple pattern, one color, a regular rectangular layout, and a sound existing base can limit labor and finishing charges. For Trex, choosing a standard board color, minimizing borders and lighting, and keeping the design close to ground level can reduce material and framing costs. Neither choice should compromise required drainage, footings, or guardrails.
Request at least three itemized local quotes using the same dimensions and scope. Schedule nonurgent work outside peak demand when contractors offer more availability, and compare repair with replacement if the existing structure is sound. Controlling complexity and matching bids line by line are the most reliable ways to keep the comparison fair.