How Much Does a 20x20 Patio Cover Cost
How Much Does a 20x20 Patio Cover Cost
A 20x20 patio cover offers a generous 400 square feet of shade—perfect for outdoor entertaining, relaxing, or creating a protected living space. But how much does a structure like this actually cost? The answer depends on material, style, installation method, and additional upgrades. Below, we break down the average cost range for a 20x20 patio cover, focusing on aluminum and Alumawood options, with comparisons to traditional wood.
Aluminum is one of the most cost-effective patio cover materials. It’s durable, lightweight, rust-resistant, and designed to last for decades with minimal maintenance. A basic 20x20 aluminum patio cover typically costs between $6,000 and $9,500, depending on style and finish.
This estimate usually includes:
Standard posts and beams
Basic color options
Solid or lattice-style roof
Professional installation
These structures are ideal for homeowners who want a clean, simple shade solution with long-term durability.
Alumawood is a type of aluminum patio cover with an embossed woodgrain texture and a baked-on finish that mimics real wood. It offers the visual warmth of timber with the low-maintenance strength of aluminum. For a 20x20 Alumawood patio cover, you can expect to pay between $8,000 and $12,000.
Alumawood covers may cost more than standard aluminum but offer better aesthetics, HOA-friendly looks, and longer-lasting finishes.
Adding extra components or upgrades can push the price higher. These include:
Electrical wiring for fans or lights (+$500 to $1,500)
Decorative columns or beams
Insulated roof panels
Custom paint colors
Gutters and downspouts
Each of these can add style and function—but also increase the overall project cost.
Wood covers bring a natural, rustic charm that’s hard to replicate. However, wood is more expensive upfront and over time. A 20x20 wood patio cover typically ranges from $10,000 to $16,000, depending on the wood type, design, and contractor.
Common wood materials include:
Pressure-treated pine (least expensive)
Redwood or cedar (more premium)
Custom milled or painted beams (highest cost)
Wood also requires more labor, especially when it comes to staining, sealing, and precision cutting. That can drive up both materials and installation fees.
Wood may cost more in the long run due to upkeep. You’ll likely need to:
Re-stain or seal every 2–3 years
Replace warped or cracked boards
Watch for termite damage
These recurring tasks can add hundreds—if not thousands—over the lifespan of your patio cover.
Alumawood delivers long-term savings through durability and reduced maintenance. Wood offers more customization but at a higher cost in materials, time, and upkeep.
For experienced DIYers, building a 20x20 aluminum patio cover can save on labor costs. A basic DIY kit may cost between $3,000 and $6,000, not including tools, concrete footings, or permits.
Keep in mind:
City permits may be required
Improper installation can affect structure safety
Electrical components (like lights or fans) require licensed professionals
Hiring a licensed contractor ensures:
Local code compliance
Warranty-backed work
Structural integrity
HOA approval support (if applicable)
While it increases cost, professional installation provides peace of mind and a polished final result.
In many California cities, including Temecula, Murrieta, and Menifee, a permit is required for patio covers. Fees typically range from $250 to $750, depending on your city’s regulations and the complexity of the build.
If your cover includes electrical wiring or is attached to the home, additional permits or inspections may be required.
A 20x20 patio cover can be a major upgrade—and the right material makes all the difference.
Choose aluminum for durability and affordability.
Choose Alumawood if you want the look of wood without the upkeep.
Choose traditional wood only if you’re prepared for higher long-term maintenance.
Set a realistic budget based on your needs, then work with a local installer who understands building codes, climate conditions, and HOA requirements. A well-built patio cover isn’t just an outdoor feature—it’s an investment in comfort, value, and lifestyle.