diff --git a/Documentation/NuttX.html b/Documentation/NuttX.html
index 4802c9e6de..1bf69dd70b 100644
--- a/Documentation/NuttX.html
+++ b/Documentation/NuttX.html
@@ -46,7 +46,17 @@ is available that be used to build a NuttX-compatible arm-elf toolchain.</blockq
 
 <h1>Memory Footprint</h1>
 
-<p>To be provided</p>
+<p>Details to be provided</p>
+
+<p>
+  I have a complete build for an ARM7 target that includes most of the OS
+  features and a broad range of OS tests.
+  That builds to an executable that requires about 85Kb for .text, .data., and .bss.
+</p>
+<p>
+  I have a stripped down OS test for the 8051 target that requires only
+  24Kb.
+</p>
 
 <h1>Licensing</h1>