Outdoor Living Guides & Tips

Quick answer: Standing seam awnings use interlocking panels with raised vertical seams for a clean, architectural look and strong water shedding. Corrugated awnings use wavy panels screwed through the face, which is cheaper and more rustic but leaves many fastener points exposed to weather. Flat-pan aluminum awnings use lightweight interlocking pans, an economical choice for large patio coverage with a plainer look. For doors, windows and storefronts where looks and longevity both matter, standing seam awnings on a welded aluminum frame are the premium pick.

All three are "metal awnings," and online they often appear side by side at very different prices. Here's how they actually differ, so you can match the roof style to your building, climate and budget.

Standing seam vs. corrugated vs. flat-pan at a glance

Standing seam awnings

A standing seam roof is built from long, flat panels whose edges rise and lock together into vertical ribs. Because the joints stand up above the drainage plane, water runs down the flats and off the front instead of pooling at the seams. The result is the crisp, linear look you see on high-end metal roofs, scaled down for a door, window or storefront.

At 1800Awnings, our standing seam awnings pair Galvalume interlocking panels with a fully welded aluminum frame, cut and welded in our Tampa shop. Welding makes the frame one rigid piece: no bolted joints to loosen over time, loads spread across the whole structure, and aluminum won't rust in salt air or humidity.

We also powder coat the top and underside of every panel, plus the whole frame and every bracket. The underside is where condensation and salt collect in shade, and it's the side you look up at every day, so we finish it like the top.

Choose standing seam if: the awning is on the front of your home or business, you want it to look like part of the architecture, or you're matching a metal roof.

Corrugated metal awnings

Corrugated panels are sheets pressed into a repeating wave. The waves add stiffness, which lets thin sheet span between supports cheaply. Panels are usually fastened with screws driven through the face, sealed with rubber washers.

The trade-off is those fasteners: a corrugated awning can have dozens of screw points open to the weather, and the washers age over time. The look also reads rustic or industrial, which suits a barn, shed or farmhouse outbuilding but can look out of place over a front entry.

Choose corrugated if: budget is the main driver, the structure is secondary, or you want an intentionally rustic look.

Flat-pan aluminum awnings

Flat-pan (sometimes called W-pan) covers use lightweight aluminum pans that interlock side by side. They're common across Florida for patio covers and carports because they cover large areas economically and are easy to handle.

They do the job well, but the profile is plain and the pans are thin, so they're rarely chosen for an entry or storefront where the awning is part of the building's face.

Choose flat-pan if: you need to cover a large patio or carport at the lowest cost per square foot and the look is secondary. For a finished, larger outdoor room, see our aluminum patio covers.

Which lasts longest?

Longevity depends less on the roof style than on three details: the frame, the finish and the wall connection.

• Frame: A welded aluminum frame stays square and won't rust. Bolted or thin steel frames are where many metal awnings fail first.
• Finish: Powder coat on every surface, including the underside, protects the places moisture actually sits.
• Wall connection: Integrated flashing where the awning meets the wall keeps water from running behind it. Every 1800Awnings standing seam awning includes it.

Open ends or closed ends?

Our standing seam awnings come in two styles. The O-Series (open ends) has a lighter look and lets heat and moisture escape from underneath, a real advantage in humid Gulf Coast climates. The S-Series (closed ends) blocks low-angle sun and wind-driven rain from the sides, making it the pick for west-facing windows. Both come in standard widths from 44" to 104", and custom sizes are built to order.

Frequently asked questions

What is the difference between standing seam and corrugated metal awnings?

Standing seam awnings use flat panels joined by raised, interlocking seams for a clean, architectural look. Corrugated awnings use wavy sheet fastened with screws through the face, which costs less but leaves more fastener points exposed and reads rustic.

Are standing seam awnings worth the extra cost?

For a front door, window or storefront, usually yes. You get a sharper look that suits the building, strong water shedding, and, from 1800Awnings, a welded aluminum frame and powder coat on the top and underside. For a shed or barn, corrugated is often enough.

Which metal awning is best for Florida?

Look for an aluminum frame, which won't rust, powder coat on every surface including the underside, and flashing at the wall. Our standing seam awnings are built in Tampa with all three for sun, humidity and salt air.

Is a flat-pan aluminum awning the same as standing seam?

No. Flat-pan covers use thin interlocking aluminum pans suited to large, economical patio coverage. Standing seam uses panels with tall interlocking ribs and is chosen when the awning is part of the building's look.

Can I get a standing seam awning in a custom size?

Yes. Standard widths run from 44" to 104" with 24" or 36" projection, and we build custom widths, projections and drops to order. Request a quote and we'll send a CAD drawing.

See what standing seam awnings cost

Standard sizes start at $1,375 for the O-Series and $1,558 for the S-Series. See the full breakdown in How Much Do Standing Seam Awnings Cost?, browse the O-Series and S-Series, or call 1-800-AWNINGS (296-4647).

Written by Corey Courtright | 1800Awnings.com | Tampa, FL