diff --git a/packages/modeling/src/operations/extrusions/extrudeRectangular.d.ts b/packages/modeling/src/operations/extrusions/extrudeRectangular.d.ts
deleted file mode 100644
index 7f503eb05..000000000
--- a/packages/modeling/src/operations/extrusions/extrudeRectangular.d.ts
+++ /dev/null
@@ -1,15 +0,0 @@
-import { Path2, Geom2, Geom3 } from '../../geometries/types'
-import { Corners } from '../../utils/corners'
-import RecursiveArray from '../../utils/recursiveArray'
-
-export interface ExtrudeRectangularOptions {
-  size?: number
-  height?: number
-  corners?: Corners
-  segments?: number
-}
-
-type Geometry = Path2 | Geom2
-
-export function extrudeRectangular(options: ExtrudeRectangularOptions, geometry: Geometry): Geom3
-export function extrudeRectangular(options: ExtrudeRectangularOptions, ...geometries: RecursiveArray<Geometry>): Geom3
diff --git a/packages/modeling/src/operations/extrusions/extrudeRectangular.js b/packages/modeling/src/operations/extrusions/extrudeRectangular.js
deleted file mode 100644
index ccacaba39..000000000
--- a/packages/modeling/src/operations/extrusions/extrudeRectangular.js
+++ /dev/null
@@ -1,43 +0,0 @@
-import { flatten } from '../../utils/flatten.js'
-
-import * as geom2 from '../../geometries/geom2/index.js'
-import * as path2 from '../../geometries/path2/index.js'
-
-import { extrudeRectangularPath2 } from './extrudeRectangularPath2.js'
-import { extrudeRectangularGeom2 } from './extrudeRectangularGeom2.js'
-
-/**
- * Extrude the given geometry by following the outline(s) with a rectangle.
- * @See expand for addition options
- * @param {Object} options - options for extrusion, if any
- * @param {Number} [options.size=1] - size of the rectangle
- * @param {Number} [options.height=1] - height of the extrusion
- * @param {...Object} objects - the geometries to extrude
- * @return {Object|Array} the extruded object, or a list of extruded objects
- * @alias module:modeling/extrusions.extrudeRectangular
- *
- * @example
- * let myWalls = extrudeRectangular({size: 1, height: 3}, square({size: 20}))
- * let myWalls = extrudeRectangular({size: 1, height: 300, twistAngle: TAU / 2}, square({size: 20}))
- */
-export const extrudeRectangular = (options, ...objects) => {
-  const defaults = {
-    size: 1,
-    height: 1
-  }
-  const { size, height } = Object.assign({}, defaults, options)
-
-  objects = flatten(objects)
-  if (objects.length === 0) throw new Error('wrong number of arguments')
-
-  if (size <= 0) throw new Error('size must be positive')
-  if (height <= 0) throw new Error('height must be positive')
-
-  const results = objects.map((object) => {
-    if (path2.isA(object)) return extrudeRectangularPath2(options, object)
-    if (geom2.isA(object)) return extrudeRectangularGeom2(options, object)
-    // if (geom3.isA(object)) return geom3.transform(matrix, object)
-    return object
-  })
-  return results.length === 1 ? results[0] : results
-}
diff --git a/packages/modeling/src/operations/extrusions/extrudeRectangular.test.js b/packages/modeling/src/operations/extrusions/extrudeRectangular.test.js
deleted file mode 100644
index 0da90bafd..000000000
--- a/packages/modeling/src/operations/extrusions/extrudeRectangular.test.js
+++ /dev/null
@@ -1,75 +0,0 @@
-import test from 'ava'
-
-import { TAU } from '../../maths/constants.js'
-
-import { geom2, geom3 } from '../../geometries/index.js'
-
-import { measureVolume } from '../../measurements/index.js'
-
-import { arc, rectangle } from '../../primitives/index.js'
-
-import { extrudeRectangular } from './index.js'
-
-test('extrudeRectangular (defaults)', (t) => {
-  const geometry1 = arc({ radius: 5, endAngle: TAU / 4, segments: 16 })
-  const geometry2 = rectangle({ size: [5, 5] })
-
-  let obs = extrudeRectangular({ }, geometry1)
-  let pts = geom3.toPoints(obs)
-  t.notThrows(() => geom3.validate(obs))
-  t.is(measureVolume(obs), 15.643446504023084)
-  t.is(pts.length, 44)
-
-  obs = extrudeRectangular({ }, geometry2)
-  pts = geom3.toPoints(obs)
-  t.notThrows(() => geom3.validate(obs))
-  t.is(measureVolume(obs), 40)
-  t.is(pts.length, 32)
-})
-
-test('extrudeRectangular (chamfer)', (t) => {
-  const geometry1 = arc({ radius: 5, endAngle: TAU / 4, segments: 16 })
-  const geometry2 = rectangle({ size: [5, 5] })
-
-  let obs = extrudeRectangular({ corners: 'chamfer' }, geometry1)
-  let pts = geom3.toPoints(obs)
-  t.notThrows(() => geom3.validate(obs))
-  t.is(measureVolume(obs), 15.627942731474823)
-  t.is(pts.length, 60)
-
-  obs = extrudeRectangular({ corners: 'chamfer' }, geometry2)
-  pts = geom3.toPoints(obs)
-  t.notThrows(() => geom3.validate(obs))
-  t.is(measureVolume(obs), 38)
-  t.is(pts.length, 48)
-})
-
-test('extrudeRectangular (segments = 8, round)', (t) => {
-  const geometry1 = arc({ radius: 5, endAngle: TAU / 4, segments: 16 })
-  const geometry2 = rectangle({ size: [5, 5] })
-
-  let obs = extrudeRectangular({ segments: 8, corners: 'round' }, geometry1)
-  let pts = geom3.toPoints(obs)
-  t.notThrows(() => geom3.validate(obs))
-  t.is(measureVolume(obs), 18.456369856221006)
-  t.is(pts.length, 84)
-
-  obs = extrudeRectangular({ segments: 8, corners: 'round' }, geometry2)
-  pts = geom3.toPoints(obs)
-  t.notThrows(() => geom3.validate(obs))
-  t.is(measureVolume(obs), 38.828427124746185)
-  t.is(pts.length, 64)
-})
-
-test('extrudeRectangular (holes)', (t) => {
-  const geometry2 = geom2.create([
-    [[-15, 15], [-15, -15], [15, -15], [15, 15]],
-    [[5, 5], [5, -5], [-5, -5], [-5, 5]]
-  ])
-
-  const obs = extrudeRectangular({ size: 2, height: 15, segments: 16, corners: 'round' }, geometry2)
-  const pts = geom3.toPoints(obs)
-  t.notThrows(() => geom3.validate(obs))
-  t.is(measureVolume(obs), 9487.376095070491)
-  t.is(pts.length, 192)
-})
diff --git a/packages/modeling/src/operations/extrusions/extrudeRectangularGeom2.js b/packages/modeling/src/operations/extrusions/extrudeRectangularGeom2.js
deleted file mode 100644
index 302bcea72..000000000
--- a/packages/modeling/src/operations/extrusions/extrudeRectangularGeom2.js
+++ /dev/null
@@ -1,46 +0,0 @@
-import { area } from '../../maths/utils/area.js'
-
-import * as geom2 from '../../geometries/geom2/index.js'
-import * as path2 from '../../geometries/path2/index.js'
-
-import { offset } from '../offsets/offset.js'
-
-import { extrudeLinearGeom2 } from './extrudeLinearGeom2.js'
-
-/*
- * Expand and extrude the given geometry (geom2).
- * @see offset for additional options
- * @param {Object} options - options for extrusion, if any
- * @param {Number} [options.size=1] - size of the rectangle
- * @param {Number} [options.height=1] - height of the extrusion
- * @param {geom2} geometry - the geometry to extrude
- * @return {geom3} the extruded geometry
- */
-export const extrudeRectangularGeom2 = (options, geometry) => {
-  const defaults = {
-    size: 1,
-    height: 1
-  }
-  const { size, height } = Object.assign({ }, defaults, options)
-
-  options.delta = size
-  options.offset = [0, 0, height]
-
-  // convert the geometry to outlines
-  const outlines = geom2.toOutlines(geometry)
-  if (outlines.length === 0) throw new Error('the given geometry cannot be empty')
-
-  // create a composite geometry
-  let expanded = []
-  outlines.forEach((outline) => {
-    if (area(outline) < 0) {
-      outline = outline.slice().reverse() // all outlines must wind counterclockwise
-    }
-    // expand the outline
-    const part = offset(options, path2.fromPoints({ closed: true }, outline))
-    expanded = expanded.concat(geom2.toOutlines(part))
-  })
-  const newGeometry = geom2.create(expanded)
-
-  return extrudeLinearGeom2(options, newGeometry)
-}
diff --git a/packages/modeling/src/operations/extrusions/extrudeRectangularPath2.js b/packages/modeling/src/operations/extrusions/extrudeRectangularPath2.js
deleted file mode 100644
index 479ac10d7..000000000
--- a/packages/modeling/src/operations/extrusions/extrudeRectangularPath2.js
+++ /dev/null
@@ -1,31 +0,0 @@
-import * as path2 from '../../geometries/path2/index.js'
-
-import { offset } from '../offsets/offset.js'
-
-import { extrudeLinearGeom2 } from './extrudeLinearGeom2.js'
-
-/*
- * Expand and extrude the given geometry (path2).
- * @See expand for addition options
- * @param {Object} options - options for extrusion, if any
- * @param {Number} [options.size=1] - size of the rectangle
- * @param {Number} [options.height=1] - height of the extrusion
- * @param {path2} geometry - the geometry to extrude
- * @return {geom3} the extruded geometry
- */
-export const extrudeRectangularPath2 = (options, geometry) => {
-  const defaults = {
-    size: 1,
-    height: 1
-  }
-  const { size, height } = Object.assign({ }, defaults, options)
-
-  options.delta = size
-  options.offset = [0, 0, height]
-
-  const points = path2.toPoints(geometry)
-  if (points.length === 0) throw new Error('the given geometry cannot be empty')
-
-  const newGeometry = offset(options, geometry)
-  return extrudeLinearGeom2(options, newGeometry)
-}
diff --git a/packages/modeling/src/operations/extrusions/index.d.ts b/packages/modeling/src/operations/extrusions/index.d.ts
index 4868db248..06ebca808 100644
--- a/packages/modeling/src/operations/extrusions/index.d.ts
+++ b/packages/modeling/src/operations/extrusions/index.d.ts
@@ -1,6 +1,5 @@
 export { extrudeFromSlices, ExtrudeFromSlicesOptions } from './extrudeFromSlices'
 export { extrudeLinear, ExtrudeLinearOptions } from './extrudeLinear'
-export { extrudeRectangular, ExtrudeRectangularOptions } from './extrudeRectangular'
 export { extrudeRotate, ExtrudeRotateOptions } from './extrudeRotate'
 export { extrudeHelical, ExtrudeHelicalOptions } from './extrudeHelical'
 export { project, ProjectOptions } from './project'
diff --git a/packages/modeling/src/operations/extrusions/index.js b/packages/modeling/src/operations/extrusions/index.js
index d1a222ff5..7dd165b90 100644
--- a/packages/modeling/src/operations/extrusions/index.js
+++ b/packages/modeling/src/operations/extrusions/index.js
@@ -4,11 +4,10 @@
  * @module modeling/extrusions
  * @example
  * import { extrusions } from '@jscad/modeling'
- * const { extrudeFromSlices, extrudeLinear, extrudeRectangular, extrudeRotate, project } = extrusions
+ * const { extrudeFromSlices, extrudeHelical, extrudeLinear, extrudeRotate, project } = extrusions
  */
 export { extrudeFromSlices } from './extrudeFromSlices.js'
 export { extrudeLinear } from './extrudeLinear.js'
-export { extrudeRectangular } from './extrudeRectangular.js'
 export { extrudeRotate } from './extrudeRotate.js'
 export { extrudeHelical } from './extrudeHelical.js'
 export { project } from './project.js'