Union Forge Denim Co.

Est. Duluth Iron Works Row, 1891

Made to be worn in, not worn out.

We still cut denim the way the foundry crews needed it: 14.5 oz. selvage, bar-tacked stress points, a fit that gets better the longer you fight it. Since 1891, one promise - 3 years of hard use or we mend it for free.

Shop the Foundry Line 135 Years of Wear - Our Story

14.5 oz. raw selvage twill

3-year mend-it-free promise

6 bar-tacked stress points

$4.75 - cost of the original 1891 pair, framed at our register

Find Your Fit

Four cuts. One shop floor.

Pick a silhouette - the caption below updates to match.

Slim. Tapered from hip to hem - 8.5″ leg opening. Built for boots, not bulk.

Straight. No taper, no flare - 9.5″ leg opening straight down. The original foundry cut.

Relaxed. Room through the seat and thigh - 11″ leg opening. For a full day on your feet.

Loose. Wide through the whole leg - 13″ leg opening. Stack it over work boots.

Our Story

Six generations at the same cutting table.

  1. 1891

    The first bolt. Anders Voss buys one bolt of 14.5 oz. duck twill and sews trousers for the rail crews on Iron Works Row.

  2. 1907

    The bar tack. After a season of ripped pocket corners, Voss's daughter Ingrid adds the six-point bar tack still used today.

  3. 1942

    Rationed cloth. Wartime rationing cuts our thread allotment 30% - we switch to a single-needle chain stitch to save yardage. It's faster, so we kept it.

  4. 1978

    The flagship on Lake Street. The Voss family opens its first standalone shop; the register from that day is still in use.

  5. 2003

    Back to raw denim. We drop the stone-wash line entirely and return to unwashed selvage - the fit-guide names on this page date from that reset.

  6. 2026

    Today. Ninety-one people, one Duluth cutting floor, roughly 40 pairs finished by hand each day.

Shop the Line

Six pieces, one wash room.

$128

No. 501 Foundry Straight

Our original cut, unchanged since 2003. Raw 14.5 oz. selvage, chain-stitched hem.

$118

Ironclad Slim

8.5″ opening, mid-rise. Built for boots.

$168

Trestle Trucker Jacket

Corduroy collar, two chest pockets, bar-tacked seams.

$134

Switchyard Loose Carpenter

13″ opening, hammer loop, reinforced knees.

$210

Selvage Chore Coat

Unlined, boxy, made to layer over the No. 501.

$145

Bib Overall No. 9

Named for the ninth pattern Ingrid Voss ever drafted, 1911.

One pair, three years, one promise.

Rip a seam before 2029? Bring it back to the Duluth floor - we mend it free, no receipt needed.

Shop the Foundry Line