tr — Treble crochet (Abbreviation)

tr stands for "treble crochet" (also written "trc" in some patterns) — the tallest of the commonly used crochet stitch heights, one full step above dc. It doubles up on the setup: two wraps around the hook before it ever goes into the stitch, where dc only takes one. From there it closes in three separate two-loop pull-throughs rather than dc's two — the combination is what stretches this stitch taller still.

Why an extra wrap adds real height, not just extra motion

Each additional yarn-over before insertion adds another full loop's worth of yarn stacked on the hook before the stitch closes, and each corresponding two-loop pull-through releases one of those stacked loops in sequence — more stacked loops means a physically taller finished stitch, which is the entire mechanical reason the sc-hdc-dc-tr progression climbs in height exactly the way it does.

How gauge changes as stitch height increases

A taller stitch like tr produces noticeably fewer rows per inch than the same yarn worked in dc or hdc, since each row simply covers more vertical distance — a project switching from dc to tr partway through (for a textured band, say) needs its row-based math recalculated rather than assuming the same rows-per-inch figure carries over unchanged.

Where it shows up

Openwork and lacy crochet patterns, where tr's height and the correspondingly larger gaps between stitches at a given gauge produce an airy, lightweight fabric; and filet crochet's occasional taller sections, where extra height helps a design's proportions read correctly.

Related abbreviations

• dc — one step shorter, one fewer yarn-over before insertion
• ch — chain, commonly paired with tr in openwork patterns to fill gaps between tall stitches

FAQ

Does treble crochet use significantly more yarn per stitch than double crochet? Yes, generally — the extra wrap and the taller finished stitch both mean more yarn passes through every single tr than through the equivalent dc, so a tr-heavy design needs a noticeably larger total yarn estimate than the identical stitch count in dc.

Is there a stitch taller than tr in common use? Yes — double treble (dtr) and triple treble (trtr) extend the same extra-yarn-over-per-height-step pattern further, though both are considerably less common in everyday patterns than sc, hdc, dc, or tr.