24 ga steel gutters · Sherman & DFW
Custom 24 gauge gutters & downspouts.
K-style, box, and custom-profile gutters with matching downspouts, elbows, and accessories — formed in our Sherman, TX shop for contractors across North Texas and DFW.
Fortified Metals fabricates 24 gauge steel gutters and downspouts in any color on our chart or Galvalume, cut to your run lengths, with end caps, miters, outlets, and elbows made to match.
What we make
The full gutter system.
Order the whole package from one shop so everything fits and matches: gutter, downspouts, and every piece in between.
- K-styleThe standard residential profile, in common sizes or a custom girth
- Box gutterSquare-profile gutter for commercial, modern, and metal-roof buildings
- Built-in linersLiners for existing wood or masonry box gutters, with expansion joints
- Custom profileMatched to your drawing or to existing gutter on the building
- DownspoutsRectangular and round, standard and oversized
- FittingsA and B elbows, offsets, end caps, inside and outside miters, outlets and drops
- HangersStraps and hangers to suit the profile and fascia
Sizing
Downspout sizing, rule of thumb.
Undersized downspouts are the most common reason gutters overflow. These are starting points — heavy-rain areas, steep roofs, and valleys that dump into the gutter need more capacity.
| Downspout | Opening | Approx. roof area per downspout | Typical use |
|---|---|---|---|
| 2 x 3 in | 6 sq in | ~600 sq ft | Smaller residential runs |
| 3 x 4 in | 12 sq in | ~1,200 sq ft | Most residential, light commercial |
| 4 x 5 in | 20 sq in | ~2,000 sq ft | Large roofs, metal roofs, commercial |
| Custom | To spec | Engineered to the roof | Commercial and architectural |
Rule of thumb only, based on roughly 1 sq in of downspout opening per 100 sq ft of roof. We'll size it with you from the roof plan.
Why 24 gauge steel
Typical residential aluminum gutter is thin and dents under a ladder or a hailstorm. 24 ga steel holds its shape, spans farther between hangers, and stands up to Texas hail and heat.
It also comes off the same painted coil as a 24 ga standing seam roof — so gutters, downspouts, trim, and panels all match.
What to send us
- Run lengths for each gutter section, corner to corner
- Profile and size — or a photo of what's there now
- Outlet locations and downspout lengths to grade
- Corners — number of inside and outside miters
- Color from our chart, or Galvalume
How a custom order works
Sketch to finished metal.
Send it over
A drawing, field measurements, a photo, or the piece itself. Rough is fine.
We confirm
We check dimensions, profile, color, and gauge with you before anything gets cut.
We build it
Cut and bent in our Sherman shop from the same coil as your roof panels.
Get it to the job
Pick it up in Sherman, or ask us about delivery to your job site.
Questions
Common questions.
Why use 24 gauge steel gutters instead of aluminum?
24 gauge steel is much stiffer than typical residential aluminum gutter. It resists dents from ladders, limbs, and hail, spans farther between hangers, and comes from the same painted coil as a 24 gauge standing seam roof, so the color and finish match.
What size gutter and downspout do I need?
It depends on the roof area draining to each downspout, the roof pitch, and local rainfall. As a rough rule, a 2x3 downspout handles about 600 square feet of roof and a 3x4 handles about 1,200. Send us the roof plan or the run lengths and we'll size the gutter and downspouts with you.
How far apart should downspouts be?
A common rule is a downspout every 30 to 40 feet of gutter, and at least one on every run. Long runs, steep roofs, and valleys that dump into the gutter need more.
Can you match my roof color?
Yes. Gutters and downspouts are formed from the same painted coil on our color chart as our standing seam panels, in PVDF or SMP paint systems, or in Galvalume.
Do you make box gutters and built-in gutter liners?
Yes. We fabricate commercial box gutters and liners to your girth and profile, with end caps, expansion joints, and scupper or outlet tubes.
Do you install gutters?
We fabricate and supply. Contractors and installers pick up or take delivery; if you need an installer, ask and we can point you in the right direction.
More from the shop
Need something custom?
Send us your run lengths.
We'll price the gutter, downspouts, and every fitting as one package.
sales@fortifiedmetals.com · 605 E. Mulberry St, Sherman, TX