Firewalls & engine bays
Smoothed, recessed or completely reworked for cleaner lines, modern drivetrains and purpose-built layouts.
Mesa, Arizona · Custom automotive metalwork
Built in metal.
Built to fit.
Firewalls, transmission tunnels, floors, rust repair and one-off panels for classic cars and custom trucks.
Hand formedTIG & MIG weldedOne-off fabrication
Inside the work
Real metal. Real builds.
Every photo below is shop work—formed, fitted and finished one panel at a time.
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RevB Chassis builds
Sheet metal built around the chassis.
Scott Nelson of RevB Chassis directly refers customers to Marco Sheetmetal when their builds need custom sheet metal and body-to-chassis integration.
RevB Chassis and Marco Sheetmetal are separate, independent companies. RevB logo displayed with permission.
01Firewall and drivetrain clearance
02Transmission tunnels and raised floors
03Bed structures and chassis clearance
04One-off panels and body fitment
Start a RevB-based projectTools & training behind the work
Built with equipment and know-how we trust.
Brand names and logos belong to their respective owners. They identify equipment or training used by Marco Sheetmetal and do not imply sponsorship or endorsement.
What leaves the shop
Metalwork that belongs on the build.
No catalog look. No universal-fit shortcuts. Every panel is shaped around the vehicle, the stance and the finished build.
Transmission tunnels
Hand-built clearance for transmission swaps, raised floors, air-ride chassis and altered driveline geometry.
Floors & structural repair
From localized floor sections to complete replacement, built with attention to strength and serviceability.
Rust repair
Damaged metal removed, surrounding structure assessed and replacement sections shaped to match.
Truck beds & bed raises
Raised bed floors and custom sheet metal for lowered and air-ride trucks without the improvised look.
One-off panels
Patch panels, closeouts, inner panels and details that are unavailable, discontinued or better built from scratch.
“The goal is simple: the metal should look like it was always supposed to be there.”
Marco · FabricatorHow a project starts
Clear scope before the first cut.
- 1
Send the vehicle and problem
Year, make, model, clear photos and a direct description of what you want changed.
- 2
Shop review
The condition, access, previous repairs and fabrication path are reviewed before a range is given.
- 3
Written scope and deposit
Approved work is documented. A 50% non-refundable deposit reserves the job and starts material planning.
- 4
Fabrication and approval
If hidden rust or prior damage changes the job, it is communicated before additional work proceeds.
Straight numbers
$100 / hour
$400 minimum job. Custom fabrication is estimated from visible condition; hidden rust, previous repairs and difficult access can change the final scope.
Small rust repair$400–$800
Medium repair$800–$1,800
Floor pan section$1,000–$2,500
Full floor$2,500–$5,500+
One-off custom panel$600–$1,500
Firewall / engine bay mods$1,000–$3,000+
Pricing is a starting range, not a blind promise. A written scope controls the job.
The shop
Old metal. Modern standards.
Marco Sheetmetal is a one-man fabrication shop in Mesa, Arizona focused on classic cars, squarebody trucks and custom builds. The work is hands-on—from pattern and fit-up through shaping, welding and metal finishing.
This is not collision production work. It is deliberate, one-off fabrication for owners who care how the unfinished metal looks before paint hides it.
Follow @marco_sheetmetal ↗Project intake
Tell me what needs to be built.
Good photos and honest details get a faster answer. Use the form to build a clean project summary, then copy it into an Instagram message.