diff --git a/README.md b/README.md
index 54a51f5..44dd5f1 100644
--- a/README.md
+++ b/README.md
@@ -91,4 +91,8 @@ For generating a specific part:
 `python3 rbuild.py -b yBar -c micro -t custom`
 
 `rbuild.py` also support an optional `--nightly` flag, which will run a nightly build of OpenSCAD. Please make sure the
-path to the nightly build is also configured in [rbuild.py](./rbuild.py).
\ No newline at end of file
+path to the nightly build is also configured in [rbuild.py](./rbuild.py).
+
+## Designing rack-mount items
+
+Some useful variables for designing your own rack-mount items can be found in [rack-mount/dimensionHelper.scad](./rack-mount/dimensionHelper.scad).
\ No newline at end of file
diff --git a/rack-mount/dimensionHelper.scad b/rack-mount/dimensionHelper.scad
new file mode 100644
index 0000000..ec08944
--- /dev/null
+++ b/rack-mount/dimensionHelper.scad
@@ -0,0 +1,10 @@
+include <./common.scad>
+
+// OpenSCAD script to output some helpful dimensions for creating new rack-mount items:
+
+echo("Vertical distance between 2 main rail holes: ", screwDiff);
+echo("Horizontal distance between 2 opposing main rail holes: ", rackMountScrewWidth);
+
+echo("Max supported rack-mount width: ", maxUnitWidth);
+echo("Max recommended rack-mount depth: ", maxUnitDepth);
+
diff --git a/temp.txt b/temp.txt
new file mode 100644
index 0000000..e69de29