Metal Building Corner Trim: Inside & Outside Corner Profiles
Walk around any metal building, and your eye goes straight to the corners. That's just how people look at these buildings, whether they realize it or not. A sloppy corner sticks out fast, and a gap or a raw edge there gives water somewhere to get in, which is exactly why metal building corner trim isn't a component you want to treat as an afterthought.
That's where Triple-S Steel® comes in: we've got metal corner trim for R Panel and MAX Rib Panel systems in standard sizes, and if your project needs something we don't carry off the shelf, our team fabricates it across our network of locations. Either way, you're not stuck making do.
Let's get your corners buttoned up tight.
The Two Corners Every Metal Building Has
Corner trim isn't one product; it splits into two, depending on where the corner sits on the building. When people search for steel corner trim, they're usually trying to figure out whether they need something for an outside corner, an inside corner, or both.
Here's what we carry for both roof and wall panel systems.
Outside Corner Trim
Outside corner trim is the one you already picture, the corner that points toward the street and shows up in every photo of the building. We carry two versions. Go sculpted if you want a hemmed, tailored edge that looks like someone thought about it. Go with the plain angle, in 2-inch, 3-inch, 4-inch, or 6-inch sizes, if you just need the corner covered and want to move on. Either way, metal outside corner trim is ready to go for R Panel or MAX Rib Panel.
Inside Corner Trim
Outside corner trim is the one you already picture, the corner that points toward the street and shows up in every photo of the building. We carry two versions. Go sculpted if you want a hemmed, tailored edge that looks like someone thought about it. Go with the plain angle, in 2-inch, 3-inch, 4-inch, or 6-inch sizes, if you just need the corner covered and want to move on. Either way, metal outside corner trim is ready to go for R Panel or MAX Rib Panel.
To sum it up: Sculptured is for the build where people notice the details, and plain angle is for the build where nobody will, and that's fine too. Either way, metal siding corner trim from Triple-S gets fabricated to match your panel color, so the corners disappear into the wall for a clean finish.
What If Your Corner Doesn't Fit the Chart?
2-inch to 6-inch covers most jobs, but not all. If you need outside corner trim for metal building projects that fall outside that range, or a length longer than our standard stock, tell us what you're working with. We'll fabricate it in-house, and most custom orders are back in your hands in two to three days.
Corner Trim Applications
Anywhere two panel runs meet at an angle, you'll find metal roof corner trim and wall corner trim doing their job quietly in the background. That covers more ground than people expect:
- Pole barns and post-frame buildings
- Steel and metal building construction
- L-shaped, T-shaped, and multi-wing buildings with inside corners
- Agricultural and equipment buildings
- Carports and covered storage
- Residential metal siding retrofits and additions
- Commercial and industrial construction
- Workshops, garages, and barndominiums
Whatever the footprint looks like, metal roofing corner trim and siding corner trim are always doing the same two things: keeping water off that exposed panel edge and giving the building a finished line.
Why Buy Corner Trim From Triple-S Steel
We've been a family-run metals business since 1960, and you can tell by how we still handle all orders, large and small, with the same careful consideration. Corner trim comes standard or can be custom-fabricated in-house from our locations in Houston, San Antonio, Knoxville, and Odessa, so a component you need this week doesn't turn into a six-week wait.
Fabricating in-house means we match your corner trim to your panel type and color. Got an inside corner, an odd footprint, or a size that doesn't show up on our chart? Our team builds to your specs instead of handing you a stock piece and leaving it to you to make it work.
And since you're probably not just buying corners, we make it easy to add rake trim, eave trim, or gutters to the same order, so you can knock out your whole trim package at once. Contact us or request a quote, and we'll get the right corner trim to your job site.
Take a Closer Look at Triple-S Steel
Here's what a family-owned metals business looks like day to day, yard and all.
Get a Quote on Metal Building Corner Trim Today
Standard outside corner, an inside corner for that odd footprint, or something custom altogether, Triple-S Steel can get you there. Contact us or request a quote today, and let's figure out exactly what your building needs.
Frequently Asked Questions
What's the difference between outside corner trim and inside corner trim?
Outside corner trim goes on the corner that points away from the building, the kind found on every standard rectangular structure. Inside corner trim is for the corner that folds inward instead, which really only shows up on an L-shaped or T-shaped building.
What sizes does metal building corner trim come in?
Our angle-style trim comes in leg sizes from 2 inches to 6 inches, in both outside and inside corner versions. We also carry a sculptured, hemmed profile if you want something more finished. Need a size that's not on that list? We'll fabricate it.
Is the sculptured corner available for both R Panel and MAX Rib Panel buildings?
For outside corners, yes, no restrictions there. For inside corners, R Panel is standard, and MAX Rib Panel is available on request, so just flag that when you order.
Does corner trim come in colors that match my panels?
Yes. Corner trim is fabricated to match your R Panel or MAX Rib Panel color, so it blends in instead of looking like an afterthought.
Our Commitment To You
For more than 60 years, we've stayed committed to fair trade and long-term thinking, providing great products and unwavering service. Our team's flexibility and entrepreneurial spirit ensure tailored solutions that create opportunities for your success within our Triple-S Steel® family.