Cost Breakdown
| Item | Low | Average | High |
|---|---|---|---|
| Corrugated Polycarbonate Panels Lightweight, wavy-profile panels similar in shape to corrugated metal roofing. Available in clear, translucent, and tinted options. Easiest to install and most affordable. Minimal insulation value — primarily a rain and UV shield. Typical thickness is 0.8–1.0 mm. | $600 | $1,200 | $2,000 |
| Multiwall Polycarbonate Panels (6mm–16mm) Structured panels with internal ribs creating air channels. The most popular choice for patio covers because they diffuse light (reducing glare and heat), provide insulation (R-1.5 to R-2.5 depending on thickness), and resist impact. 10mm is the standard thickness for most residential patio covers. | $1,000 | $2,200 | $3,800 |
| Solid Polycarbonate Panels (3mm–6mm) Clear, glass-like sheets with the highest light transmission and impact resistance. 200 times stronger than glass. Used where maximum clarity is desired — pool enclosures, greenhouse-style patio covers, and pergola tops. Higher cost reflects premium material and heavier structural requirements. | $1,500 | $3,000 | $5,000 |
| Aluminum Support Structure The framing system that supports the polycarbonate panels. Includes purlins, rafters, posts, and attachment hardware. Aluminum is standard because it won't rust and handles the lightweight panels well. Wood framing costs 20–30% less but requires maintenance. | $1,000 | $2,500 | $5,000 |
| Installation Labor Professional installation of panels on an existing or new support structure. Includes cutting, sealing, and fastening. Most patio covers take 1–2 days to install with a two-person crew. | $800 | $1,800 | $3,500 |
Average Total Cost: $1,600–$5,000 for a 200 sq ft patio cover with multiwall panels; $2,500–$8,000 for solid panels with new framing
Factors That Impact Cost
Panel Type and Thickness
Corrugated panels cost $3–$5/sq ft; multiwall runs $5–$9/sq ft; solid is $8–$12/sq ft. Thicker multiwall panels (16mm vs. 6mm) cost 40–60% more but offer better insulation and rigidity.
Project Size
Costs per square foot drop 10–20% on larger projects (300+ sq ft) due to labor efficiency. Small projects (under 100 sq ft) pay a premium because setup time and minimum crew charges apply regardless of size.
Existing Structure
Installing panels on an existing pergola or patio frame costs $8–$15/sq ft. Building a new support structure from scratch adds $5–$25/sq ft depending on material (aluminum vs. wood) and local permit requirements.
UV Coating and Tinting
UV-protected panels (essential for longevity) cost 10–15% more than uncoated. Tinted panels (bronze, grey, opal) add 5–10%. Always choose UV-coated — unprotected polycarbonate yellows and becomes brittle within 3–5 years.
Permits and Engineering
Patio covers over 200 sq ft or attached to the house often require a building permit ($100–$500) and may need engineered drawings ($300–$800) in wind-prone or snow-load areas.
Money-Saving Tips
- Use multiwall panels instead of solid Multiwall polycarbonate provides better heat reduction and diffused light at 40–50% less cost than solid panels. For patio covers where crystal-clear visibility isn't needed, multiwall is the better value. Potential savings: $500–$2,000
- Install on an existing pergola or structure If you already have a pergola or patio frame, adding polycarbonate panels to the top costs $8–$15/sq ft vs. $15–$25/sq ft for a full structure-plus-panels build. The framing is often half the total project cost. Potential savings: $1,000–$5,000
- DIY the panel installation Polycarbonate panels are lightweight, easy to cut with a circular saw, and fasten with standard screws and rubber washers. If you have an existing structure and basic tool skills, DIY saves $800–$3,500 in labor. Potential savings: $800–$3,500
- Buy panels in bulk from a distributor Home centers charge retail markup of 30–50% on polycarbonate panels. Buying directly from a plastics distributor or roofing supply house saves significantly on material costs, especially for orders over 10 panels. Potential savings: $1,530
When to Splurge
- Solid panels for pool enclosures Additional cost: $1,000–$3,000 over multiwall
- 16mm multiwall for covered outdoor living spaces Additional cost: $400–$1,200 over 6mm