Guide

Embroidery stitch types — fill, satin, run, and decorative

Every embroidery design is built from a handful of stitch families: runs for lines, satin for borders and lettering, and fills for large areas — plus decorative variants. Stichii ships 58 stitch types across those four families, and this page explains what each one is for.

The four stitch families

A running stitch is a single line of needle penetrations — the simplest stitch, used for outlines, detail lines, and travel. A satin stitch lays thread back and forth across a column to make a smooth, glossy band; it is what borders, monograms, and small lettering are made of. A fill (tatami or step) covers a large area with rows of running stitch offset in a brick pattern so the surface stays flat and stable.

Decorative stitches — cross stitch, motif, spiral, candlewicking — are patterned variants used for texture rather than coverage. The rule of thumb: run for lines, satin for anything under about 10 mm wide, fill for anything wider.

  • Run — single, double, triple, bean, stem, back, ripple, contour, stipple.
  • Satin — column, centerline, raised, lace, blackwork.
  • Fill — tatami/step, smooth, patterned, fancy long-short, gradient, contour.
  • Decorative — cross stitch, motif, appliqué, spiral, candlewicking.

Satin or fill? The width rule

Satin stitches longer than roughly 10 mm snag and loosen — the thread has nothing holding it down across that span. Once a column gets wider than that, switch it to a fill so the needle penetrations anchor the thread across the area. Narrow shapes, borders, and lettering stay satin.

In Stichii you can change an object from satin to fill (or back) at any time and the stitches regenerate immediately, so you can try both and look at the preview rather than guessing.

Stitch length and why it matters

Stitch length is the distance between needle penetrations. Too long and the thread floats and snags; too short and you punch the same area repeatedly, which stiffens the fabric and can cut it. Typical fill stitch length is 3–4 mm; detail runs go shorter.

Stichii clamps stitch length and density so a bad value cannot produce a design that never finishes or destroys the fabric, and the validation panel flags objects whose settings are out of sane range.

Frequently asked questions

What is the difference between satin and fill stitch?
Satin lays thread across a column in one smooth pass and looks glossy, but it cannot span more than about 10 mm without snagging. Fill (tatami) covers wide areas with offset rows of running stitch so every part of the thread is anchored.
What is a tatami stitch?
Tatami — also called a step or ceding fill — is the standard fill: parallel rows of running stitch with the needle points offset in a brick pattern so no visible line forms through the fill.
How long should an embroidery stitch be?
Most fills run 3–4 mm. Shorter than about 1 mm punches the fabric repeatedly and stiffens it; longer than about 12 mm floats and snags.
How many stitch types does Stichii have?
Stichii ships 58 stitch types — 35 fills, 9 run variants, 7 satin variants, and 7 decorative — all editable with a live preview.

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