---
title: Trapezoid
order: 10
---

A box frustum — like the [Cone](cone.md) primitive but with a rectangular cross-section.

![Trapezoid](../../assets/trapezoid.webp)

## Parameters

- **Size** — base extent (default `2.0`)
- **Cone Cap** — top scale (default `0.5`). `0.0` = pyramid, `1.0` = box.
- **Bevel + Bevel Profile + Bevel Smooth** — controls for the four slanted vertical corners
- **Rounding + Profile** — controls for the top and bottom rims

## Notes

*Cone Cap* sweeps the shape from a pyramid at `0.0` through every frustum to a plain box at `1.0`. The bevel runs along the slanted corners rather than vertical ones.

## See also

- [Cone](cone.md) — the circular-section frustum
- [Box](box.md) — what a Trapezoid becomes at cap `1.0`