How to Tie a Macramé Square Knot
Basic Knot Tutorial · Updated May 23, 2026 · 18 min read · Phase 1
The macramé square knot is the workhorse of the craft — the knot you'll tie thousands of times across wall hangings, plant hangers, bracelets, and bags. Master it and the rest of macramé opens up: alternating-square-knot diamond patterns, plant-hanger sennits, spiral twists, geometric designs — all of them are just square knots in different sequences.
Written by Nicole Woo
Founder of Bochiknot · Teaching macramé since 2018
I teach the square knot as the second knot in every beginner class (right after the lark's head). It takes about two minutes to understand and two days to get comfortable with. Once it's in your hands, every other knot in macramé is easier to learn because the rhythm of the motion — cross, under, through, mirror — shows up everywhere.
Below is the complete walkthrough: what the square knot is, the anatomy of working cords vs. filler cords, how to tie it step by step (with diagrams), the three most useful variations (spiral / half square, alternating, and sennit), right-hand vs. left-hand convention, common mistakes I see in classes, troubleshooting, practice drills, projects to apply it on, and a 12-question FAQ.
In this tutorial:
- What is the macramé square knot?
- Anatomy: working cords vs. filler cords
- When and where to use the square knot
- What you'll need
- How to tie the square knot (step-by-step)
- The half square knot (spiral) variation
- The alternating square knot pattern
- The square knot sennit
- Right-hand vs. left-hand square knots
- Common mistakes
- Troubleshooting
- Practice exercises
- Projects that use the square knot
- FAQ
- Your next macramé knot
What Is the Macramé Square Knot?
The square knot is a decorative four-cord knot tied in two mirrored halves. It uses two "working" cords (outer) that wrap around two "filler" cords (inner) in a left-then-right (or right-then-left) sequence to form a flat, symmetrical knot block.
Each square knot has a distinct visual signature: a small horizontal bar across the front, with two small loops just above it. When you tie many of them in a row — vertically as a sennit, or in an alternating grid — the pattern becomes the most recognizable look in modern macramé.
- Most common knot in macramé. You'll use it more than every other knot combined across most projects.
- Decorative, not structural. Unlike the lark's head (which mounts cord), the square knot is what fills the body of a piece.
- Easy to spot when it's wrong. Beginner pieces often show "twisted" square knots — that's actually half square knots tied unintentionally (see the spiral section below).
Anatomy: Working Cords vs. Filler Cords
Before you tie a square knot, you need to know what your four cords are doing. This is the single most-skipped step that causes confusion for beginners.
| Cord position | Name | Role |
|---|---|---|
| Far left | Left working cord | Moves — does the knotting on one side |
| Middle left | Filler cord | Stays still — gets wrapped around |
| Middle right | Filler cord | Stays still — gets wrapped around |
| Far right | Right working cord | Moves — does the knotting on the other side |
The two outer cords (working cords) do all the work. The two inner cords (filler cords) stay perfectly still — they're just the surface that the working cords wrap around. Each square knot uses very little of the filler cord, which is why you can tie hundreds of square knots in a sennit without running out of middle cord.
When and Where to Use the Square Knot
The honest answer is: almost everywhere. The square knot fills the body of more macramé projects than any other knot. Here's the breakdown by project type.
| Project type | How the square knot is used | Variation |
|---|---|---|
| Wall hangings | Diamond grids, focal blocks, body fill | Alternating square knot |
| Plant hangers | Vertical straps that hold the pot | Square knot sennit |
| Bracelets | The whole bracelet body | Sennit or alternating |
| Necklaces & chokers | Body of the piece, often with beads | Sennit |
| Bags & totes | Net-like fabric for the body | Alternating square knot |
| Keychains | Short decorative column | Sennit (5-10 knots) |
| Table runners | Repeating decorative grid | Alternating square knot |
| Curtain tie-backs | Functional flat band | Sennit |
| Hair accessories | Decorative band | Sennit |
What You'll Need
To practice the square knot you need slightly more setup than the lark's head — four cords instead of one. But everything still fits on a beginner workstation.
✅ The setup
- Four lengths of macramé cord — each about 4 feet long, 3mm or 5mm single-strand cotton. Shop single-strand cord →
- A wooden dowel — 12 inches works well for practice. Shop wooden dowels →
- Two lark's head knots already tied on the dowel — this gives you the four hanging cords you need.
- Something to hang the dowel from — S-hook on a doorframe or chair back at eye level.
Haven't tied a lark's head yet? Start with my lark's head knot tutorial first — you need two of them to set up for the square knot.
How to Tie the Square Knot (Step-by-Step)
The square knot is two mirrored half-knots, tied one after the other. Here's the slow walkthrough — the diagram below shows the structure, then the detailed steps follow.
1Set up your four cords
Start with four cords hanging from your dowel. The two outer cords are your working cords. The two inner cords are your filler cords and will stay still throughout the knot. Spread the cords slightly so each is clearly separate.
2Cross the right working cord over the fillers
Take the right working cord and bring it across the front of the two filler cords, heading left. The right working cord should now be lying on top of the filler cords with its end pointing to the left.
3Bring the left working cord under and through
Take the left working cord. Bring it down and under both filler cords, then up and through the loop that the right working cord made on the right side of the fillers. Now pull both working cords outward (one left, one right) until the knot tightens against the bottom of your previous knot or the dowel.
You've just tied the first half of the square knot. If you stopped here and repeated this same motion over and over, you'd be tying half square knots — which produce a spiral (covered in the next section).
4Mirror the motion to complete the knot
Now do the exact same thing but reversed. The working cord that's now on the left (it switched sides during step 3) — bring it across the front of the fillers heading right. Then take the working cord that's now on the right, bring it down and under the fillers, and up through the loop on the left side. Pull both working cords outward to tighten.
That's one complete square knot. You should see a flat, symmetrical knot with a horizontal bar across the front.
The Half Square Knot (Spiral) Variation
Here's the variation everyone asks about: the spiral knot or half square knot. It's not actually a different knot — it's the square knot tied without the mirror step.
How the spiral works
Remember step 3 from the basic square knot — the first half? If you do only that step and repeat it over and over without ever tying the second mirrored half, the cord will twist as you go. After about 8-12 repetitions, the entire column will rotate into a beautiful spiral.
It happens because you're always crossing the same direction. The cord can't lay flat anymore, so it physically rotates around the filler cords. Every 4 half-knots ≈ a quarter turn; every 16 half-knots ≈ a full rotation.
How to tie a spiral sennit
- Set up your four cords (same as a regular square knot).
- Cross the right working cord over the fillers (heading left).
- Bring the left working cord under the fillers and up through the loop. Pull tight.
- Don't reverse. Repeat steps 2 and 3 exactly the same way — right cross, left under, pull tight.
- Keep repeating. The cord will naturally start to spiral after 8-12 knots.
- Keep going until you reach your desired length.
When to use a spiral instead of a square knot sennit
| Effect | Square knot sennit (flat) | Half square knot (spiral) |
|---|---|---|
| Shape | Flat ribbon | Twisted column |
| Look | Structured, geometric | Organic, dynamic |
| Best for | Plant hanger straps, bracelets, belts | Plant hangers, accents, jewelry |
| Cord used per inch | Less | Slightly more (twist takes cord) |
The Alternating Square Knot Pattern (ASK)
The alternating square knot (sometimes abbreviated ASK) is the most common decorative pattern in macramé. It uses square knots in offset rows to create a diamond-grid "net" that fills the body of most wall hangings, plant hangers, and bags.
How alternating square knot works
- Row 1: Tie square knots in groups of 4 cords across the dowel. If you have 8 cords, that's 2 square knots side by side. If you have 16 cords, that's 4 square knots side by side.
- Row 2: Drop down ~1-2 inches. Now take the 2 right cords of the first square knot and the 2 left cords of the second square knot — that's a new group of 4 cords sitting between the two original knots. Tie a square knot with this new group.
- Row 3: Drop down again and tie square knots back in the original groupings (same as Row 1).
- Repeat. Each row offsets from the one above, creating diamond shapes between the knots.
The pattern is far simpler than it sounds — your hands learn it after 2-3 rows. The visual effect is exactly the diamond grid you see in almost every modern wall hanging.
The Square Knot Sennit
A sennit is a vertical column of repeated knots. A square knot sennit is the simplest version: square knots stacked one directly below the next, all on the same four cords.
Tie a square knot, then immediately tie another one directly below it on the same cords, then another, then another. After 10-20 knots you'll have a flat ribbon that's wider than a single knot — that's the sennit.
Sennits are the building block of:
- Plant hanger straps — typically 4 sennits, each 20-30 knots long
- Bracelets and belts — a single sennit forms the whole piece
- Wall hanging columns — used as the central vertical element in many designs
- Bag handles — strong, flat, and decorative
Right-Hand vs. Left-Hand Square Knots
You'll occasionally see patterns specify "right-hand square knot" or "left-hand square knot." Here's what that means and whether it matters.
- Right-hand square knot: Step 2 starts with the right working cord crossing first (heading left). This is the most common convention in modern macramé.
- Left-hand square knot: Step 2 starts with the left working cord crossing first (heading right). Less common but functionally identical.
Both versions produce the same finished knot shape. The only practical difference is the direction the small loops on the side of the knot face. What matters is consistency: pick one and use it throughout a single piece. Don't mix right-hand and left-hand square knots within the same sennit or alternating pattern — the row will look slightly off.
Common Square Knot Mistakes
Five mistakes I see on repeat in beginner classes:
- Forgetting the mirror step. You tie step 2 and step 3, then immediately repeat them instead of doing the reverse motion. The result is a spiral instead of a square knot. Fix: pause after step 3 and consciously remember to reverse — left cross, right under-through.
- Working the filler cords by accident. Some beginners pull on the filler cords during step 4. The fillers should stay completely still — only the working cords (outer) ever move. Fix: pinch the filler cords gently with your other hand while you work to keep them in place.
- Inconsistent tension. Some knots tight, others loose, because hand fatigue creeps in. Fix: take a 30-second break every 15-20 knots, and shake your hands out. Tension consistency is the single biggest "tell" of a beginner sennit.
- Cords getting twisted. Your four cords slowly braid themselves as you tie. Fix: every 5-10 knots, separate the cords back out so they hang parallel. Don't let them tangle.
- Skipping rows in alternating patterns. In an ASK pattern, you alternate which cords pair up in each row. If you forget to offset on row 2, you end up with sennits side by side instead of a diamond grid. Fix: look at the cords above each new knot before you tie — they should be the inner pair of one knot and the inner pair of its neighbor.
Troubleshooting
"My square knots are twisting into a spiral"
You're tying half square knots, not full square knots. After step 3, you need to reverse direction — left cross first this time, not right cross again. If you keep crossing the same direction every time, the cord physically twists into a spiral. To get a flat square knot, alternate directions every time.
"My square knots look uneven across a row"
Inconsistent tension between knots. Take a break, shake your hands out, and tie the next knot deliberately at the same firmness as the cleanest knot in the row. If a single knot is loose, you can sometimes pull it tight retroactively by tugging the working cords outward; if it's too tight, you usually have to untie and redo it.
"My filler cords are getting shorter as I knot"
You're accidentally including the fillers in the working motion. The fillers should be passive — they stay still in the middle while only the outer working cords move. Re-check your cord grip: only the two outer cords should be in your fingers when you're actively wrapping.
"My alternating pattern has gaps that look wrong"
The gap between rows is uneven, or you offset incorrectly. The standard gap between rows is about ½ to 1 inch (depending on cord thickness). The offset must use the inner pair of one knot and the inner pair of its neighbor — never the outer cords of adjacent knots.
"My sennit is curving sideways instead of going straight down"
You're pulling one working cord tighter than the other on each knot. The pull on the left and right working cords needs to be equal during step 3 and step 4. If one side is consistently tighter, the entire sennit will arc in that direction over many knots.
Practice Exercises
The square knot takes about 30 minutes of focused practice to feel comfortable. Here are three drills I use to get beginners there.
Drill 1: 10 square knots in a row (10 minutes)
Mount two lark's heads on a 12-inch dowel (gives you 4 cords). Tie 10 square knots stacked vertically as a sennit. Goal: every knot the same size, the same tightness, with no gaps between them. Look at the sennit from across the room — if any knot stands out, redo it.
Drill 2: 10 half square knots (the spiral) (8 minutes)
Same setup. Tie 10 half square knots — only the first half of the motion, repeated. Goal: the cord visibly twists into a spiral by the 8th or 10th knot. Don't fight the rotation — let it happen.
Drill 3: Mini alternating square knot grid (15 minutes)
Mount four lark's heads (8 cords). Tie row 1 (two square knots side by side). Then row 2 with the offset (one square knot in the middle using the inner cords of the row above). Then row 3 (back to two square knots). You should see a small diamond appear between rows 1, 2, and 3. Goal: the diamond is roughly symmetrical.
Projects That Use the Square Knot
Every project here uses square knots heavily — either as sennits, alternating patterns, or both.
- Small dowel wall hanging (2 hours) — Lark's heads, then 3-4 rows of alternating square knots, finished with brushed fringe. The classic first project.
- Basic plant hanger (3 hours) — Lark's heads on a ring, four square knot sennits forming the straps, gathering knot at the top. → See my 5 ways to start a plant hanger guide.
- Square knot bracelet (30 minutes) — A single sennit of square knots with a sliding-knot closure. Perfect last-minute gift.
- Spiral plant hanger (3 hours) — Same construction as a basic plant hanger, but the straps are half square knot (spiral) sennits instead of flat square knot sennits.
- Macramé bag (5-6 hours) — A large piece of alternating square knot fabric folded and seamed. Beginner-friendly with patience.
- Diamond-pattern wall hanging (4 hours) — Alternating square knot grid as the body, double half hitches forming diamond borders, brushed fringe at the bottom.
Macramé Square Knot FAQ
What is a macramé square knot?
The square knot is the most common decorative knot in macramé. It's tied using four cords — two outer working cords and two inner filler cords. The working cords cross over and under the fillers in a mirrored two-step motion to form a flat, symmetrical knot.
How many cords do I need for a square knot?
Four cords. Two outer "working" cords do the knotting, and two inner "filler" cords stay still. Each lark's head produces two cords, so you need two adjacent lark's heads (four cords total) to tie one square knot.
What's the difference between a square knot and a half square knot?
A square knot is one full knot tied in two mirrored halves. A half square knot is only the first half, repeated. When you stack many half square knots vertically, the cord naturally twists into a spiral.
How do I make a spiral knot in macramé?
A spiral knot is just a series of half square knots stacked vertically. Tie the first half of a square knot, pull tight, then immediately repeat — don't mirror it. After 8-12 repetitions, the cord will naturally twist into a spiral.
What is an alternating square knot?
The alternating square knot (ASK) is a repeating pattern that uses pairs of square knots in offset rows. The pattern creates a net-like diamond grid — the most common decorative pattern in macramé.
What is a square knot sennit?
A sennit is a vertical column of repeated knots. A square knot sennit is a stack of square knots tied one directly below the next, using the same four cords. It creates a flat, ribbon-like braid used for plant hanger straps, belts, and bracelets.
What's the difference between a right-hand and left-hand square knot?
A right-hand square knot starts with the right working cord crossing first. A left-hand square knot starts with the left working cord. Both produce the same finished shape. The convention in modern macramé is right-hand, but consistency matters more than direction.
Why is my square knot twisting or leaning?
You're skipping the mirror step. A full square knot needs both halves — first the right-cross, then the mirrored left-cross. If you only tie the first half and repeat, you're tying half square knots which intentionally spiral.
How tight should I pull my square knots?
Firm but not strained. Each knot should sit flush against the previous knot with no visible gap, but the cord shouldn't be over-stretched or twisted out of shape.
What projects use the square knot?
Almost every macramé project. Wall hangings (alternating square knot diamond patterns), plant hangers (square knot sennit straps), bracelets, bags, keychains, table runners, and curtain tie-backs.
How much cord do I need for a square knot?
Each square knot uses about 4-5 cm of working cord and barely any filler cord. For a sennit of 10 square knots, plan for about 40-50 cm of extra working cord beyond the finished length. Use the 4× rule overall.
Can beginners learn the square knot?
Yes — it's usually the second knot beginners learn after the lark's head. Most people get it on their first or second attempt. After 5-10 practice knots, it becomes muscle memory.
Your Next Macramé Knot
You've got the square knot and three of its variations. Next up:
- The lark's head knot · The mounting knot that comes before every square knot
- The double half hitch · For diagonal lines and diamond pattern outlines
- The gathering knot · The finishing knot at the top of every plant hanger
- The berry knot — for 3D texture · Stacked square knots that form raised decorative bumps
- The endless falls knot — two-color decorative knot with a braided front and ladder-pattern back, perfect for plant hangers and bag straps.
Or jump back to the complete beginner's guide to macramé for the full Phase 1 foundation.
Join the Bochiknot Patreon Community
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Become a patron →The square knot is the knot you'll tie thousands of times — so get this one comfortable and the rest of macramé opens up. Plant hangers, wall hangings, bags, bracelets, jewelry — all of them are just square knots in different sequences.
When you finish your first sennit, tag @bochiknot on Instagram. I love seeing first sennits especially. Happy knotting. 🌾
Nicole Woo — Founder, Bochiknot
Macramé educator & designer · Teaching since 2018
Nicole is a self-taught macramé artist who left a career in accounting to teach the craft full-time. Through Bochiknot, she's helped thousands of beginners take their first knot — sharing step-by-step tutorials on YouTube, premium cotton cord in the shop, and beginner-friendly kits.
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Macramé for Beginners: The Complete Guide
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