Beading wire is a thin, flexible metal cord used to string beads into necklaces, bracelets, and other jewelry. Unlike solid craft wire that holds a shape when bent, beading wire is made from multiple ultra-fine stainless steel strands woven together, giving it a thread-like drape while retaining the strength of metal. It’s the go-to stringing material for most bead jewelry projects, especially those using heavier beads like glass, gemstone, or crystal.
How Beading Wire Is Made
Beading wire gets its flexibility from its internal structure. Each strand is composed of multiple hair-thin stainless steel wires twisted or braided together, then coated in a thin layer of nylon. The nylon coating protects the steel from tarnishing, prevents it from abrading your beads, and gives the wire a smoother feel as it passes through bead holes.
The number of internal strands determines how the wire behaves. Beading wire comes in three main configurations: 7-strand, 19-strand, and 49-strand. A 7-strand wire is the stiffest and least expensive, suitable for simple projects where drape doesn’t matter much. A 19-strand wire offers a good balance of flexibility and strength for most jewelry. A 49-strand wire is the most supple, draping almost like silk thread while still holding up to heavy beads. The more strands, the more the wire moves and flows like fabric rather than metal.
Common Sizes and What They Fit
Beading wire is measured by its outer diameter in inches or millimeters. Sizes range from 0.010 inches (0.25 mm) up to 0.036 inches (0.91 mm), and the general rule is simple: choose the largest diameter that will still pass through the smallest bead hole in your project.
- 0.010″ to 0.013″ (0.25–0.33 mm): Extremely thin. Best for seed beads, freshwater pearls, and small semi-precious stones with tiny drill holes. This size also works for bead weaving projects where the wire passes through a bead multiple times.
- 0.015″ to 0.021″ (0.38–0.53 mm): A versatile mid-range. Good for crystals, most semi-precious gemstones, and medium glass beads. This is the range many jewelry makers reach for as their default.
- 0.024″ to 0.036″ (0.60–0.91 mm): Heavier wire for larger hole beads, chunky glass, and metal beads. Provides higher break strength for heavy finished pieces.
Weight matters as much as bead hole size. A long necklace of large stone beads puts significant tension on the wire, so even if a thinner wire fits through the holes, you may need a thicker one to handle the load without snapping over time.
How It Differs From Thread and Cord
Beading wire, beading thread, and stringing cord are three different materials that sometimes confuse beginners because they all hold beads. Each has a distinct purpose.
Beading thread (nylon, polyester, or braided gel-spun fibers) is lightweight and flexible enough for bead weaving, where you stitch tiny seed beads together in patterns. Thread passes through small beads multiple times and ties off with knots. It’s not ideal for stringing heavier beads in a row because the knots can slip under tension, and the thread itself can tangle during the stringing process.
Silk and nylon cord is the traditional choice for pearls and other beads with very small holes. These cords are finished with knots tied between each bead (called knotting) and secured with knot covers. They give a classic, soft drape that beading wire can’t quite replicate at the thinnest sizes.
Beading wire fills the middle ground. It’s stronger than thread, more flexible than solid craft wire, and secured with small metal fittings called crimp beads rather than knots. For heavy pieces, experienced jewelry makers consistently prefer beading wire and crimps over thread because the connection is more reliable and the wire resists stretching and fraying far better than any fiber.
How to Secure Beading Wire
You can’t tie beading wire in a knot the way you would thread. Instead, you use a tiny metal tube called a crimp bead or crimp tube. The wire passes through the crimp, loops through a clasp or jump ring, then passes back through the crimp a second time. You then compress the crimp with pliers (or a specialized crimping tool) to lock everything in place.
Crimp size needs to match your wire diameter. The pairing matters because a crimp that’s too large won’t grip the wire tightly, and one that’s too small won’t fit two passes of wire inside it. Here’s a quick reference:
- Size #0 or #1 crimp beads: Fit wire from 0.010″ to 0.021″. Require micro crimping pliers.
- Size #2 crimp beads: Fit wire from 0.024″ to 0.026″. Use standard crimping pliers.
- Size #3 crimp beads: Fit wire from 0.024″ to 0.036″. Require heavy-duty (mighty) crimping pliers.
Many jewelry makers also add a crimp cover over the flattened crimp to hide it and give the piece a more polished look. Wire guards, small U-shaped metal pieces, can be placed where the wire loops through a clasp to prevent the wire from wearing against the metal over time.
Memory Wire: A Different Category
Memory wire sometimes gets grouped with beading wire, but it’s a completely different product. Memory wire is a single, thick steel wire permanently shaped into a coil. It holds its circular shape on its own, so you don’t need a clasp. You simply slide beads onto one end and finish the tips with a small loop or decorative end cap.
Memory wire comes pre-sized for bracelets or necklaces, and the coil you see in the package is the diameter of the finished piece. It’s great for quick, no-clasp bracelets, but it can’t drape or curve freely the way stranded beading wire does. You also shouldn’t cut memory wire with regular jewelry pliers, as the hardened steel will damage the blades. Memory wire shears or heavy-duty cutters are the right tool.
Choosing the Right Wire for Your Project
Start with your beads. Lay them out, find the one with the smallest hole, and thread a piece of wire through it to confirm it fits. If you’re working with seed beads or pearls, you’ll likely need 0.010″ to 0.013″ wire. For most gemstone and glass bead necklaces, 0.015″ to 0.019″ handles the job well. For chunky statement pieces with large-hole beads, go up to 0.024″ or thicker.
Next, think about how you want the finished piece to move. If you need the jewelry to drape softly against the skin, invest in 49-strand wire. If you’re making a floating necklace (where beads are spaced apart on visible wire), a stiffer 7-strand wire actually works better because it holds its shape between beads without sagging. For most standard strung jewelry, 19-strand is the sweet spot of cost, strength, and flexibility.
Color is the last consideration. Beading wire typically comes in a metallic silver tone, but many brands offer it in gold, copper, black, white, and bright colors. The color shows between beads and through translucent beads, so matching the wire to your design can make a noticeable difference in the finished look.