> For the complete documentation index, see [llms.txt](https://help.prequilt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.prequilt.com/prequilt-101/build-a-block-unit-for-the-fabric-calculator/triangular-units/quarter-square-triangle-qst.md).

# Quarter Square Triangle (QST)

<figure><img src="/files/iasMzNMmb0llaUh3zeep" alt="" width="375"><figcaption><p>Quarter Square Triangle Block Unit</p></figcaption></figure>

## <mark style="color:blue;">Quarter Square Triangle (QST) Block Unit in PreQuilt</mark>

This is another foundation block that will help you create a wide variety of quilt blocks.

But it's important to note that there are 4 different **Quarter Square Triangle (QST)** block units that can be auto recognized in PreQuilt.&#x20;

It's important to make sure that you create your block unit correctly in order for the fabric requirements and cutting instructions to be accurate.

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## <mark style="color:blue;">Quarter Triangle Block Units in PreQuilt</mark>

<table data-view="cards"><thead><tr><th></th><th data-hidden></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Quarter Square Triangle</strong></td><td></td><td></td><td><a href="/files/MrdFcEMdOPEqiziH8MeG">/files/MrdFcEMdOPEqiziH8MeG</a></td><td><a href="/pages/q1z3DdDoj5TjulZMxClH">/pages/q1z3DdDoj5TjulZMxClH</a></td></tr><tr><td><strong>QST:</strong> <strong>Hourglass</strong></td><td></td><td></td><td><a href="/files/11PgZDvGaWtoriFz7jJp">/files/11PgZDvGaWtoriFz7jJp</a></td><td><a href="/pages/C5HER9Q7dw14SsgbB08N">/pages/C5HER9Q7dw14SsgbB08N</a></td></tr><tr><td><strong>QST: Hourglass Variation</strong></td><td></td><td></td><td><a href="/files/2no7c64Ni3bWs8qK9FCp">/files/2no7c64Ni3bWs8qK9FCp</a></td><td><a href="/pages/nuCmhnu1khue6ZN7MIqH">/pages/nuCmhnu1khue6ZN7MIqH</a></td></tr><tr><td><strong>Split QST</strong></td><td></td><td></td><td><a href="/files/ZDTXT2Kb78ZxKsBOmpz6">/files/ZDTXT2Kb78ZxKsBOmpz6</a></td><td><a href="/pages/piSBVGyu9KcDgEuPstSi">/pages/piSBVGyu9KcDgEuPstSi</a></td></tr></tbody></table>