diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index a18862a234..f373240b17 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -708,11 +708,11 @@ if(BUILD_BONSAIVIEWER_TESTS)
 endif()
 
 if(BUILD_BONSAIVIEWER)
-    # IfcUtil first — schema-agnostic helpers (Unit, Geolocation,
+    # helpers first — schema-agnostic helpers (Unit, Geolocation,
     # Placement) that IfcViewer's Federation links against. Adding here
     # before ifcviewer/ so the link target exists when IfcViewer's
     # CMakeLists runs.
-    add_subdirectory(../src/ifcutil ifcutil)
+    add_subdirectory(../src/helpers helpers)
     # IfcViewer is the unified scene + render lib since the wgpu/ifcviewer
     # merge — wgpu-native is fetched inside its CMakeLists.txt.
     add_subdirectory(../src/ifcviewer ifcviewer)
diff --git a/src/bonsaiviewer/docs/viewport_architecture.rst b/src/bonsaiviewer/docs/viewport_architecture.rst
index af5cd17f59..a2cfd05fdc 100644
--- a/src/bonsaiviewer/docs/viewport_architecture.rst
+++ b/src/bonsaiviewer/docs/viewport_architecture.rst
@@ -33,7 +33,7 @@ Stack
   the event loop driving render scheduling, and the timer/elapsed
   primitives used in instrumentation.
 * **IfcOpenShell C++ libs** (IfcParse / IfcGeom) for IFC parsing and
-  geometry generation, plus **IfcUtil** for the schema-agnostic
+  geometry generation, plus **helpers** for the schema-agnostic
   helpers (``Unit``, ``Geolocation``, ``Placement``).
 * **Eigen3** for 4×4 matrices and small linear algebra.
 * **meshoptimizer** at sidecar-build time only — decimates each
diff --git a/src/ifcutil/CMakeLists.txt b/src/helpers/CMakeLists.txt
similarity index 81%
rename from src/ifcutil/CMakeLists.txt
rename to src/helpers/CMakeLists.txt
index cea59f6993..8881745c1e 100644
--- a/src/ifcutil/CMakeLists.txt
+++ b/src/helpers/CMakeLists.txt
@@ -33,28 +33,28 @@ message("Running CMakeLists.txt in /src/ifcutil")
 
 find_package(Eigen3 REQUIRED)
 
-file(GLOB IFCUTIL_CPP_FILES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
-file(GLOB IFCUTIL_H_FILES   ${CMAKE_CURRENT_SOURCE_DIR}/*.h)
+file(GLOB HELPER_CPP_FILES ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
+file(GLOB HELPER_H_FILES   ${CMAKE_CURRENT_SOURCE_DIR}/*.h)
 
-add_library(IfcUtil STATIC ${IFCUTIL_CPP_FILES} ${IFCUTIL_H_FILES})
+add_library(helpers STATIC ${HELPER_CPP_FILES} ${HELPER_H_FILES})
 
-set_target_properties(IfcUtil PROPERTIES
+set_target_properties(helpers PROPERTIES
     VERSION   "${PROJECT_VERSION}"
     SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}"
 )
 
 # PUBLIC: callers (IfcViewer, test_federation, future tools) get
 # `#include "Unit.h"` etc. via this directory automatically, no
-# `#include "../ifcutil/Unit.h"` ugliness at call sites.
-target_include_directories(IfcUtil PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+# `#include "../helpers/Unit.h"` ugliness at call sites.
+target_include_directories(helpers PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
 
-target_link_libraries(IfcUtil PUBLIC
+target_link_libraries(helpers PUBLIC
     IfcParse
     Eigen3::Eigen
 )
 
-install(TARGETS IfcUtil EXPORT ${IFCOPENSHELL_EXPORT_TARGETS})
+install(TARGETS helpers EXPORT ${IFCOPENSHELL_EXPORT_TARGETS})
 
-install(FILES ${IFCUTIL_H_FILES}
-    DESTINATION ${INCLUDEDIR}/ifcutil
+install(FILES ${HELPER_H_FILES}
+    DESTINATION ${INCLUDEDIR}/helpers
 )
diff --git a/src/ifcutil/Geolocation.cpp b/src/helpers/geolocation.cpp
similarity index 100%
rename from src/ifcutil/Geolocation.cpp
rename to src/helpers/geolocation.cpp
diff --git a/src/ifcutil/Geolocation.h b/src/helpers/geolocation.h
similarity index 100%
rename from src/ifcutil/Geolocation.h
rename to src/helpers/geolocation.h
diff --git a/src/ifcutil/Placement.cpp b/src/helpers/placement.cpp
similarity index 100%
rename from src/ifcutil/Placement.cpp
rename to src/helpers/placement.cpp
diff --git a/src/ifcutil/Placement.h b/src/helpers/placement.h
similarity index 100%
rename from src/ifcutil/Placement.h
rename to src/helpers/placement.h
diff --git a/src/ifcutil/Unit.cpp b/src/helpers/unit.cpp
similarity index 100%
rename from src/ifcutil/Unit.cpp
rename to src/helpers/unit.cpp
diff --git a/src/ifcutil/Unit.h b/src/helpers/unit.h
similarity index 100%
rename from src/ifcutil/Unit.h
rename to src/helpers/unit.h
diff --git a/src/ifcviewer/CMakeLists.txt b/src/ifcviewer/CMakeLists.txt
index 36301d683c..09725c144c 100644
--- a/src/ifcviewer/CMakeLists.txt
+++ b/src/ifcviewer/CMakeLists.txt
@@ -275,7 +275,7 @@ add_dependencies(IfcViewer ${kernel_libraries} ${mapping_libraries})
 
 target_link_libraries(IfcViewer PUBLIC
     IfcViewerCore
-    IfcUtil
+    helpers
     IfcGeom
     IfcParse
     ${OpenCASCADE_LIBRARIES}
diff --git a/src/ifcviewer/tests/CMakeLists.txt b/src/ifcviewer/tests/CMakeLists.txt
index e2b7c74e3c..b53f5356f7 100644
--- a/src/ifcviewer/tests/CMakeLists.txt
+++ b/src/ifcviewer/tests/CMakeLists.txt
@@ -158,11 +158,11 @@ target_link_libraries(test_federation PRIVATE
     Qt${QT_VERSION}::Gui    # Federation::HomeView uses QVector3D from QtGui
     Qt${QT_VERSION}::Test   # QSignalSpy
     Eigen3::Eigen           # Federation.h: composed matrices use Eigen
-    # IfcUtil provides Unit::convert + Geolocation helpers
+    # helpers provides Unit::convert + Geolocation helpers
     # (helmertMetersFromParameters, getWcs, getMapUnit) + Placement
     # (getAxis2Placement, called from Geolocation::getWcs). Linking the
     # static lib avoids re-compiling those .cpp files here and pulls
-    # the IfcUtil include dir + IfcParse transitively.
-    IfcUtil
+    # the src/helpers include dir + IfcParse transitively.
+    helpers
 )
 catch_discover_tests(test_federation)