4 Corner Architectural Sheet Metal provides material-only fabrication for contractors working on commercial and residential projects. Our experienced in-house team produces custom flashings, coping cap and other architectural sheet metal components with the accuracy and quick turnaround you need to keep your project moving.
We fabricate steel ranging from 24 gauge through 18 gauge for a variety of architectural sheet metal applications.
We keep a number of UNA-CLAD standard colors in stock, helping us provide faster service when the material and color your project requires are readily available.
Our aluminum fabrication capabilities range from .019 through .060.
We cut and route 3mm, 4mm and 6mm ACM (aluminum composite material) using our in-house CNC router table.
Having the right equipment in our own shop allows us to control the fabrication process from start to finish. Our specialized machinery gives our experienced fabricators the ability to cut, bend, route and join materials efficiently while maintaining the accuracy required for architectural sheet metal work.

Our shop has two automated 10-foot brakes used to precisely bend sheet metal into custom shapes. These machines allow us to produce flashings, coping cap and other formed components based on the requirements of each project.
Our Tensmith shear makes clean, accurate cuts in sheet metal. It allows our fabricators to quickly cut material to the dimensions required before it moves on to bending, forming or other fabrication processes.


Our CNC router table gives us the ability to accurately cut and route aluminum composite material. We work with 3mm, 4mm and 6mm ACM, preparing panels and components for custom architectural applications.
Our Surelok II Clinching Button Punch mechanically joins pieces of sheet metal using cold-forming pressure rather than separate fasteners or welding. The process creates a tight, permanent clinched joint without heat or sparks, giving our shop an efficient way to join fabricated metal components in-house.

Experience matters in architectural sheet metal, but so does knowing who you’re working with.
At 4 Corner Architectural Sheet Metal, customers work directly with our owners—Stephen Martin, Mark Peare, and Brett Looney—rather than having their project handed off to subcontractors. Our team brings more than 100 years of combined industry experience to the work we do.
That experience helps us understand what contractors, project managers, and job superintendents need from a fabrication partner: clear communication, quality materials, and dependable turnaround.
From estimating through fabrication, you’ll have an experienced team you can call when you have a question or need to work through the details of an order.