The X knot, more formally called the cross knot, is a decorative knot that creates a clean X-shaped pattern on one side and a square pattern on the other. It’s a staple of Chinese knotting and works well as an ornamental accent on jewelry, keychains, zipper pulls, and clothing ties. You only need a single length of cord and about five minutes to learn it.
What You Need
Any flexible cord will work, but the knot looks best and holds its shape with cord that has some body to it. Satin rattail cord (commonly sold for Chinese knotting) in 1.5 to 2 mm thickness is ideal for jewelry and small decorative pieces. Paracord works well for larger projects like keychains or lanyards. Cotton cord and hemp also hold the knot reliably because natural fibers grip against themselves.
Avoid anything too slippery or stiff. Polypropylene rope (the shiny blue or yellow kind sold for towlines) doesn’t hold knots well and is unpleasant to work with. If you’re practicing with what you have on hand, nylon rope is the easiest to find and performs fine. Cut a piece about 18 to 24 inches long so you have plenty of working room on both ends.
Step-by-Step Instructions
Step 1: Create the First Cross
Find the middle of your cord. At that midpoint, cross the left cord over the right cord so they form an X. Then take the cord that’s now on the left side and fold it horizontally to the right, laying it over the crossing point. You should now have a horizontal loop (called a bight) pointing to the right, with a tail hanging down from it.
Step 2: Form the Vertical Loop
Take the left-hand cord and bring it upward to form a vertical bight over that horizontal one. You’re essentially laying this cord on top of the horizontal fold, going straight up. Now bring the working end of this same cord up to the loop at the top of the knot, pass it through from front to back, and pull it back down. At this point the knot will start to look like a woven grid with loops on multiple sides.
Step 3: Weave the Final Pass
Take the right-hand cord and fold it behind the bight you just created. Then thread it through the left-hand loop. You’re passing this cord behind one layer and through another, which locks the whole structure together. When you pull it through, the characteristic X pattern will begin to emerge on the front face of the knot.
Step 4: Tighten and Adjust
Gently pull on all four ends (or both cord ends, since each has a section going in two directions through the knot) to snug everything together. Work slowly, pulling a little at a time on each section to keep the knot even and symmetrical. The cross pattern should sit flat and centered. If one arm of the X looks thicker or longer than another, loosen the knot slightly and redistribute the cord by pulling on the thinner sections.
How It Should Look When Finished
The front of a correctly tied cross knot displays a distinct X shape where two diagonal strands cross over each other, with a small square frame formed by the cord passing around the outside. Flip it over and you’ll see a different pattern: a small woven square rather than an X. This two-sided quality is normal and one of the reasons the knot is popular in decorative work. If both sides look the same, something went wrong in the weaving sequence, most likely in Step 3 where the right-hand cord needs to pass behind one layer before threading through the loop.
Common Mistakes and Fixes
The most frequent problem is the knot coming out lumpy or asymmetrical. This almost always comes down to tightening. If you yank one end hard, the knot distorts and becomes difficult to fix. Instead, tighten in small increments, working your way around the knot so each section takes up slack evenly. A pair of flat-nose pliers or a thin crochet hook can help you tug on specific loops without disturbing the rest.
If the knot feels loose and won’t hold its shape, your cord is probably too slippery. A tiny dot of clear glue on the back can lock it in place for permanent projects. For practice, switch to cotton or hemp cord, which grips naturally and makes the learning process much less frustrating.
What the X Knot Is (and Isn’t) Good For
This is a decorative knot, not a load-bearing one. It’s designed to look good, not to secure a climbing rope or anchor a tarp. Use it for ornamental purposes: finishing the ends of a bracelet, adding texture to a necklace, decorating gift wrapping, or creating traditional Chinese knotting art. It pairs well with other decorative knots like the button knot or the double coin knot in longer knotted pieces.
For projects where you need a flat, X-shaped lashing that actually holds weight, look into square lashing or diagonal lashing techniques instead. These are structural knots used in pioneering and construction that distribute load across crossed poles or sticks.