Copyright © 2026 Frankman Motor Company. All rights reserved.
At a Glance
Frankman Motor Company runs a full custom interiors and auto upholstery department at our Harrisburg shop just south of Sioux Falls — seats, headliners, door panels, carpet, dashboards, marine, RV, motorcycle, and home furniture. We're an Authorized Katzkin Dealer for direct OEM-fit leather conversions on modern trucks, SUVs, and cars. Hands-on work led by John B — 3rd generation Staley's Upholstery. Family-owned since 1988. Quotes turn around in 1–2 business days.
Start Your Interior Project
Tell us about your vehicle, boat, RV, or furniture and upload a few photos. Joey and the interior team will review and get back to you within 1–2 business days with a quote and timeline.
1 Your Info
2 Your Project
3 Your Vision
4 Photos
We've Got Your Project!
Joey and the interior team will review your photos and details. Expect a call or email within 1–2 business days with a quote and timeline.
(605) 789-8650
Meet Joey — Custom Interiors Lead
Body Shop Manager & Custom Interiors Lead
Joey Bergjord runs the entire Frankman Motor Company body shop, restoration department, and our Custom Interiors Department. Whether you're bringing in a 1969 Camaro for a factory-correct interior, a brand-new Silverado for a full Katzkin leather conversion, a pontoon boat, or a sectional sofa, Joey is your point of contact from day one through final stitch.
The interior team operates the same way every other shop at FMC does — small, sharp, and obsessed with the details most shops skip. Every panel is fit by hand. Every seam is straight. Every headliner is tight. Family-owned since 1988, and we treat every interior project like it's going in our own ride.
Meet John B — Interior Upholstery Specialist
Custom Upholstery Lead · 3rd Generation Staley's Upholstery
John runs the day-to-day inside our Harrisburg interior shop. He grew up in the trade — his grandfather started Staley's Upholstery, and John has been pulling thread, fitting foam, and stretching hides since he was old enough to hold a Sharpie. He started working with the Frankman team in 2024, and in 2026 he joined full-time onsite, building seats, headliners, door panels, and full custom interiors for our restoration, custom, and Katzkin customers.
The family business carries on too — John's mother still runs the furniture upholstery, repair, and recovering side over at Staley's, and we're proud to keep working alongside them. Stand-up, honest people, and the kind of craft you can't fake. If you've got a custom build, we've got the team to not just build the car — we'll get the interior looking just as good. Stop by the Harrisburg shop and meet John in person.
What We Do — From Mild To Wild
Eight core service areas, one shop, one point of contact. If it has stitching or padding, we can build it, fix it, or upgrade it.
Seats & Reupholstery
Full seat rebuilds, foam replacement, and skin-off swaps in leather, vinyl, cloth, or any combination.
Headliners
Sagging headliners replaced with factory-correct material or upgraded suede / Alcantara finishes.
Door Panels & Trim
Custom door panels, armrests, kick panels, and trim — wrapped, stitched, and color-matched to your build.
Carpet & Floor
Full molded carpet sets, sound deadening, custom mats, and trunk liners — installed and trimmed clean.
Katzkin Leather
Authorized Katzkin Dealer. Factory-fit leather conversion kits for late-model trucks, SUVs, and cars — installed in-house.
Marine Upholstery
Boats, pontoons, jet skis, fishing rigs. Marine-grade vinyl, mildew-resistant foam, UV-stable thread.
RV & Motorcycle
RV captain's chairs, dinette cushions, slide-out covers, motorcycle seats, sissy bars — all done in-house.
Home Furniture
Yes — we do home furniture too. Sectionals, dining chairs, ottomans, headboards. Bring it in.
Authorized
KATZKIN
Dealer · Sioux Falls
Authorized Katzkin Dealer in South Dakota
Frankman Motor Company is South Dakota's Authorized Katzkin Dealer — which means we install factory-fit Katzkin leather conversion kits in-house, every single one to the manufacturer's spec. Katzkin makes premium leather upholstery designed and tooled to the exact factory dimensions of late-model trucks, SUVs, and cars from Ford, Chevy, GMC, Ram, Toyota, Nissan, Honda, Jeep, and more — over 4 million vehicles have rolled out with Katzkin interiors.
Bring your modern daily driver in and we'll transform the factory cloth interior into custom-look leather in days, not weeks — with color, perforation, piping, and stitching options you'd expect from a $100K luxury build. Pricing is dramatically lower than dealer-installed leather, and the fit is identical to OEM.
See the full Katzkin catalog & optionsWhy FMC is the Midwest Hub for Custom Interiors
Sioux Falls is the natural center of the upper Midwest — within a day's drive of Minneapolis, Omaha, Des Moines, Fargo, Rapid City, and Kansas City. For decades, custom car and truck owners in the region had to ship interiors to shops in Texas, California, or Detroit to get great results. Not anymore. The Frankman Motor Company Custom Interiors Department brings that same caliber of work right to your driveway.
Every Custom Interior project at FMC is handled in-house by our own team — no subcontracting, no farming out the headliner to one shop and the seats to another. That single-shop accountability is the difference between a $40K interior that holds up for twenty years and a $40K interior that comes apart in two summers.
What "Mild to Wild" Actually Means
"Mild" is a 1972 Chevelle that needs the factory-correct black vinyl bench reupholstered to OE spec, the headliner replaced, and new molded carpet installed. The owner wants the car to look exactly like it did the day it left the showroom. We do those every week.
"Wild" is a 2024 Ram 2500 Limited with a full Katzkin two-tone leather conversion in saddle and obsidian, contrast stitching in copper, perforated seat inserts with cooling fans, custom door panel inserts that match the seats, suede A-pillars, and a wrapped dash. That's a different kind of build — same shop, same team, same standards.
Between those two extremes is where most of our work lives: thoughtful upgrades to interiors people care about. Better materials, cleaner stitching, smarter color combinations, modern comfort built into vehicles built before "comfort" was a feature.
From start to finish, every interior touches the same hands — see our Build Gallery for finished vehicle interiors out of the same shop, or check out the Built For More custom build program when the interior is just one piece of a ground-up build.
Premium Materials & Supplier Network
The same names top-end interior shops in the country trust. Built on three generations of upholstery experience through Staley's Upholstery — Joey and John spec the right material and grade for your specific build.
Leather
Automotive · Luxury- Katzkin (Authorized Dealer)
- Relicate Leather Co.
- Garrett Leather
- Bridge of Weir
- Apex
- Andrew Muirhead
Vinyl & Marine
UV · Mildew · Marine-Grade- Naugahyde
- Spradling
- Morbern
- Sunbrella
Carpet & Mats
Molded · OEM-Spec- Custom Carpet
- Custom Floormats
- Auto Custom Carpets (ACC)
- Lloyd Mats
- Newark Auto Products
Classic & Resto Kits
Restoration · Repro- TMI Products
- Distinctive Industries
- Legendary Auto Interiors
- OPGI / Original Parts Group
Foam & Sound
Closed-Cell · Sound Deadening- Foamex automotive foam
- Dynamat sound deadening
- HushMat / Second Skin Audio
Sewing & Thread
Industrial-Grade Equipment- Consew industrial machines
- Juki industrial machines
- A&E bonded nylon thread
- Coats UV-stable thread
Final material selection is driven by your build — Joey and John spec the right brand and grade for your application during your consult. Got a specific supplier you want used? Bring the spec sheet.
Inside Our Custom Interiors Shop
A look at recent work from John and the team inside our Harrisburg interior shop — hand-cut foam, industrial sewing, leather fitting, and full seat installs. Click any image to view full-size.
How It Works — From First Call to Final Stitch
A simple five-step process. No mystery, no surprise pricing.
1
Tell Us About It
Submit the form above with photos and a few notes about what you want.
2
We Respond In 1–2 Days
Joey reviews your project and reaches out with questions or a ballpark.
3
In-Person or Virtual Consult
We walk through materials, colors, stitching, and finalize the scope.
4
Firm Quote & Timeline
Written quote with materials, labor, and a hard timeline.
5
We Build It
You drop it off (or ship it). We do the work in-house and deliver it ready.
Pricing & Investment
Every interior is quoted individually — material choice, scope, and condition drive cost. These are typical ballpark ranges to help you plan.
Katzkin Conversion
$2,400 – $4,800
Modern truck/SUV/car. Includes leather kit + in-house install.
Classic Seat Set
$1,800 – $5,500
Front + rear with new foam, hog rings, and factory-correct or custom material.
Full Custom Interior
$8,000 – $25,000+
Seats, headliner, door panels, carpet, dash. Full mild-to-wild builds.
Marine, RV, motorcycle, and home furniture quoted by project. Headliners and individual pieces start under $500.
Heads-Up — These Are Ballpark Numbers
The ranges above are based on average materials and typical scope. Every interior project is different — leather grade, color combos, custom stitching, condition of the original interior, and timeline all move the number. Call or stop in and talk to John as soon as you can to lock in a true quote and a real timeline for your build.
Call John — (605) 371-1092 or submit your project for a written quote.
We Serve The Entire Midwest
Our custom interiors department serves customers across South Dakota — Sioux Falls, Tea, Brandon, Harrisburg, Mitchell, Watertown, Aberdeen, Rapid City — and well beyond. We regularly take in vehicles and projects from Minnesota, Iowa, Nebraska, North Dakota, Wisconsin, and beyond. We've shipped finished work to clients in California, Texas, Florida, and the Pacific Northwest. If you can get it to Sioux Falls, we can build it.
Our shop shares a facility with the full Frankman Motor Company body shop, restoration department, and collision center at 26874 SD-11 in Sioux Falls. That single-location, single-team approach is rare in this industry — most interior shops can only do interiors. We can pair your interior work with paint, body, suspension, electrical, or mechanical at the same time, by the same shop. Visit our Restoration Department or Body Shop & Collision Center to see the rest.
Frequently Asked Questions
Real questions from real customers. Don't see yours? Ask in the form above.
It depends on scope. A Katzkin leather conversion on a modern truck typically takes 1–2 days once the kit arrives (2–3 weeks total including kit production). A classic car seat set with new foam runs 2–4 weeks. A full mild-to-wild custom interior with seats, headliner, door panels, and carpet usually takes 6–12 weeks. We give a firm timeline with every written quote.
Both. We do factory-correct restoration interiors on classics, and we're an Authorized Katzkin Dealer for modern truck, SUV, and car leather conversions. We also do marine, RV, motorcycle, and home furniture. If it has stitching, we can do it.
Katzkin manufactures factory-fit leather conversion kits designed and tooled to the exact OEM dimensions of late-model vehicles. Unlike generic seat covers, Katzkin kits replace the original upholstery skins entirely — the result is indistinguishable from a $5,000+ factory leather option. As an Authorized Katzkin Dealer, we install over 4,000 vehicle applications with dozens of color and stitching options.
Yes. We use marine-grade vinyl, mildew-resistant closed-cell foam, and UV-stable bonded thread on all boat work. Pontoons, fishing boats, jet skis, ski boats — we handle all of it from our Sioux Falls shop.
We do. Sectionals, dining chairs, ottomans, headboards, restaurant booths, office furniture. Same shop, same team, same craftsmanship as the vehicle work. Send photos and we'll quote it.
Wide range. Headliner replacement starts under $500. A Katzkin leather conversion runs $2,400–$4,800. A classic seat set with new foam runs $1,800–$5,500. A full mild-to-wild custom interior with everything done runs $8,000–$25,000+. We quote every project individually after seeing photos and discussing your vision.
Our interior department is at the Frankman Motor Company shop in Harrisburg, SD, just south of Sioux Falls on SD-11. For most full-interior work, yes — we need the vehicle on-site so John can fit panels and seats by hand. For Katzkin conversions on common late-model trucks/SUVs, we sometimes ship kits to trusted installers in other regions. For loose pieces (seats only, headliners pulled out, marine cushions, furniture), you can ship them to us and we'll ship them back finished. Stop in any weekday and meet John in person.
Yes. We do color matching to paint, wheels, and OEM swatches every week. If you have a specific fabric, leather, or vinyl you want used, we'll source it or work with what you supply. Bring inspiration photos to your consult.
Yes — we work with insurance carriers on water damage, fire damage, vandalism, and collision-related interior claims. Our body shop shares the facility, so we can handle the full claim under one roof.
Use the project form at the top of this page — takes 3–4 minutes and lets you upload photos directly. Joey or the interior team will respond within 1–2 business days. Or call us at (605) 371-1092 during business hours.
More From Frankman Motor Company
Custom interiors are one piece of what we do. Tap into the rest of the FMC shop — frame, paint, drivetrain, sourcing, and finished builds.
Call Us
(605) 371-1092
Joey Direct: (605) 789-8650
Visit
26874 SD-11
Sioux Falls, SD 57108
Hours
Mon–Fri 7:30am–4:30pm
Saturday by appointment
Ready For Your Mild-To-Wild Interior?
If you can dream it, we can stitch it. Submit your project for a quote in 1–2 days — no pressure, no obligation, no commission salesman in your inbox.
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