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Workshop Reference 134 Construction

Reinforcement and bar tacks

The points that get pulled on — pocket corners, the base of a fly, elbows, the bottom of a bag — and the three ways they are held.

What it is

A garment does not wear out evenly. It fails at a handful of points where the strain concentrates: the top corners of a pocket, the base of a fly, the elbows of a work jacket, the bottom of a bag that gets set down on concrete. Reinforcement is anything added at those points so the cloth and the seam outlast the pull.

Three methods show up in the work here.

  • Bar tack. A dense block of short zigzag stitches, about a centimetre long, sewn across the point of strain. It locks the layers together over an area rather than a line, so a tug is spread across dozens of stitches. Quick, strong, and matches the thread of the garment.
  • Rivet. A metal fastener set through the cloth at the same kind of point. It does the same job with metal instead of thread, and it is the traditional answer on a jean. See Hardware.
  • A second layer. An extra piece of cloth sewn behind the area — an elbow patch, a doubled bottom panel — so the strain is carried by two thicknesses. Slower, invisible from outside if it is done inside, and the right answer where the wear is a rub rather than a pull.

Where it appears

  • The Chore Coat's pocket corners and other stress points are bar-tacked.
  • The Standard Issue Jean uses copper rivets at the front pocket corners and a bar tack at the base of the fly.
  • The Foundry Jacket has reinforced elbows — a second layer where a work jacket rubs.
  • The Field Tote has a reinforced bottom panel, doubled, because that is where a bag lives.

Why one and not another

A bar tack is chosen where a rivet would sit against skin or scratch a surface — the back pockets of a jean, the inside of a bag. A rivet is chosen where the strain is a straight pull on a corner and the traditional look belongs. A second layer is chosen where the problem is abrasion, not tension. Sometimes two are used together at one point, and that is deliberate.

What it changes

Reinforced points are the points that last. They are also where a repair should go first if it is needed — a re-sewn bar tack is a five-minute job, and it is better done early. See Repairs and visible mending.