diff --git a/Models/SheenTestGrid/README.body.md b/Models/SheenTestGrid/README.body.md
new file mode 100644
index 00000000..a556f7e7
--- /dev/null
+++ b/Models/SheenTestGrid/README.body.md
@@ -0,0 +1,18 @@
+## Screenshot
+
+
+
_Screenshot from [glTF Sample Viewer](https://github.khronos.org/glTF-Sample-Viewer-Release/) using the Environment "Footprint Court"._
+
+## Description
+
+This model tests sheenColorFactor versus sheenRoughnessFactor using the extension [KHR_materials_sheen](https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_sheen).
+
+The baseColorFactor for all spheres is 0.5 blue, and the sheenColorFactor varies from 0 black to 0,1,1 cyan.
+
+The sheen extension has been explicitly added to each of the sixteen materials, even when the sheenColorFactor is set to black and therefore the extension would usually be omitted.
+
+
+
_Screenshots from [glTF Sample Viewer](https://github.khronos.org/glTF-Sample-Viewer-Release/) using the Environment "Studio Neutral" and showing debug views Sheen, Sheen Color, and Sheen Roughness._
+
+
+
_Screenshot from [glTF Sample Viewer](https://github.khronos.org/glTF-Sample-Viewer-Release/) with the Punctual Lighting option, which uses two directional lights from opposing angles._
\ No newline at end of file
diff --git a/Models/SheenTestGrid/glTF-Binary/SheenTestGrid.glb b/Models/SheenTestGrid/glTF-Binary/SheenTestGrid.glb
new file mode 100644
index 00000000..4ecc2bdb
Binary files /dev/null and b/Models/SheenTestGrid/glTF-Binary/SheenTestGrid.glb differ
diff --git a/Models/SheenTestGrid/glTF/SheenTestGrid.bin b/Models/SheenTestGrid/glTF/SheenTestGrid.bin
new file mode 100644
index 00000000..767a9dfe
Binary files /dev/null and b/Models/SheenTestGrid/glTF/SheenTestGrid.bin differ
diff --git a/Models/SheenTestGrid/glTF/SheenTestGrid.gltf b/Models/SheenTestGrid/glTF/SheenTestGrid.gltf
new file mode 100644
index 00000000..401bcf9f
--- /dev/null
+++ b/Models/SheenTestGrid/glTF/SheenTestGrid.gltf
@@ -0,0 +1,2095 @@
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diff --git a/Models/SheenTestGrid/glTF/checker.png b/Models/SheenTestGrid/glTF/checker.png
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index 00000000..0071e5e6
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diff --git a/Models/SheenTestGrid/metadata.json b/Models/SheenTestGrid/metadata.json
new file mode 100644
index 00000000..040ba6c4
--- /dev/null
+++ b/Models/SheenTestGrid/metadata.json
@@ -0,0 +1,25 @@
+{
+ "version": 2,
+ "legal": [
+ {
+ "year": "2023",
+ "owner": "Public",
+ "license": "CC0",
+ "licenseUrl": "https://creativecommons.org/publicdomain/zero/1.0/legalcode",
+ "artist": "Eric Chadwick",
+ "what": "Everything",
+ "text": "CC0 1.0 Universal",
+ "spdx": "CC0-1.0",
+ "icon": "https://licensebuttons.net/p/zero/1.0/88x31.png"
+ }
+ ],
+ "tags": [
+ "showcase",
+ "extension"
+ ],
+ "screenshot": "screenshot/screenshot.jpg",
+ "name": "SheenTestGrid",
+ "path": "./Models/SheenTestGrid",
+ "summary": "Grid of spheres over a checkered backdrop to test Sheen rendering.",
+ "createReadme": true
+}
\ No newline at end of file
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