diff --git a/tests/bench_sizeof_coretypes/Makefile b/tests/bench_sizeof_coretypes/Makefile
new file mode 100644
index 0000000000..c3cb1b3e01
--- /dev/null
+++ b/tests/bench_sizeof_coretypes/Makefile
@@ -0,0 +1,17 @@
+include ../Makefile.tests_common
+
+# Modules that will have an impact on the size of the TCB (thread_t):
+#
+# disabled by default, enable on demand:
+ifneq (,$(USE_FLAGS))
+  USEMODULE += core_thread_flags
+endif
+#
+# enabled by default, disable on demand:
+ifneq (,$(NO_MSG))
+  DISABLE_MODULE += core_msg
+endif
+
+TEST_ON_CI_WHITELIST += all
+
+include $(RIOTBASE)/Makefile.include
diff --git a/tests/bench_sizeof_coretypes/README.md b/tests/bench_sizeof_coretypes/README.md
new file mode 100644
index 0000000000..6e921bb70f
--- /dev/null
+++ b/tests/bench_sizeof_coretypes/README.md
@@ -0,0 +1,6 @@
+# Measure Size of Core Types
+
+This application simply list the size of all significant types defined by the
+RIOT core. Its purpose is to provide a base for tracking the memory requirements
+of those types over time and to provide a simple way to judge the impacts of
+future core changes on memory usage.
diff --git a/tests/bench_sizeof_coretypes/main.c b/tests/bench_sizeof_coretypes/main.c
new file mode 100644
index 0000000000..eaf5f07b0d
--- /dev/null
+++ b/tests/bench_sizeof_coretypes/main.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2014 René Kijewski <rene.kijewski@fu-berlin.de>
+ *               2018 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief       Print size of core types
+ *
+ * @author      René Kijewski <rene.kijewski@fu-berlin.de>
+ * @author      Hauke Petersen <hauke.petersen@fu-berlin.de>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+
+#include "cib.h"
+#include "clist.h"
+#include "panic.h"
+#include "kernel_types.h"
+#include "list.h"
+#include "mbox.h"
+#include "msg.h"
+#include "mutex.h"
+#include "priority_queue.h"
+#include "ringbuffer.h"
+#include "rmutex.h"
+#ifdef MODULE_CORE_THREAD_FLAGS
+#include "thread_flags.h"
+#endif
+#include "thread.h"
+
+
+#define P(NAME) printf("    tcb->%-11s            %3u     %3u\n", #NAME, \
+                       (unsigned)sizeof(((thread_t *) 0)->NAME), \
+                       (unsigned)offsetof(thread_t, NAME))
+
+int main(void)
+{
+    puts("Sizeof RIOT core types\n");
+
+    puts("                                size");
+
+    printf("sizeof(cib_t):                  %3u\n",
+           (unsigned)sizeof(cib_t));
+    printf("sizeof(clist_node_t):           %3u\n",
+           (unsigned)sizeof(clist_node_t));
+    printf("sizeof(core_panic_t):           %3u\n",
+           (unsigned)sizeof(core_panic_t));
+    printf("sizeof(kernel_pid_t):           %3u\n",
+           (unsigned)sizeof(kernel_pid_t));
+    printf("sizeof(list_node_t):            %3u\n",
+           (unsigned)sizeof(list_node_t));
+    printf("sizeof(mbox_t):                 %3u\n",
+           (unsigned)sizeof(mbox_t));
+#ifdef MODULE_CORE_MSG
+    printf("sizeof(msg_t):                  %3u\n",
+           (unsigned)sizeof(msg_t));
+#else
+    puts("sizeof(msg_t):                    0   (not enabled)");
+#endif
+    printf("sizeof(mutex_t):                %3u\n",
+           (unsigned)sizeof(mutex_t));
+    printf("sizeof(priority_queue_node_t):  %3u\n",
+           (unsigned)sizeof(priority_queue_node_t));
+    printf("sizeof(priority_queue_t):       %3u\n",
+           (unsigned)sizeof(priority_queue_t));
+    printf("sizeof(ringbuffer_t):           %3u\n",
+           (unsigned)sizeof(ringbuffer_t));
+    printf("sizeof(rmutex_t):               %3u\n",
+           (unsigned)sizeof(rmutex_t));
+#ifdef MODULE_CORE_THREAD_FLAGS
+    printf("sizeof(thread_flags_t):         %3u\n",
+           (unsigned)sizeof(thread_flags_t));
+#else
+    puts("sizeof(thread_flags_t):           0   (not enabled)");
+#endif
+    printf("\nTCB (thread_t) details:         size  offset\n");
+    printf("sizeof(thread_t):               %3u       -\n",
+           (unsigned)sizeof(thread_t));
+    P(sp);
+    P(status);
+    P(priority);
+    P(pid);
+#ifdef MODULE_CORE_THREAD_FLAGS
+    P(flags);
+#endif
+    P(rq_entry);
+#ifdef MODULE_CORE_MSG
+    P(wait_data);
+    P(msg_waiters);
+    P(msg_queue);
+    P(msg_array);
+#endif
+#ifdef DEVELHELP
+    P(name);
+#endif
+#if defined(DEVELHELP) || defined(SCHED_TEST_STACK) || defined(MODULE_MPU_STACK_GUARD)
+    P(stack_start);
+#endif
+
+    puts("\n[SUCCESS]");
+    return 0;
+}
diff --git a/tests/bench_sizeof_coretypes/tests/01-run.py b/tests/bench_sizeof_coretypes/tests/01-run.py
new file mode 100755
index 0000000000..b6b4d4d367
--- /dev/null
+++ b/tests/bench_sizeof_coretypes/tests/01-run.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2018 Freie Universität Berlin
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+
+import os
+import sys
+
+
+def testfunc(child):
+    child.expect_exact('[SUCCESS]')
+
+
+if __name__ == "__main__":
+    sys.path.append(os.path.join(os.environ['RIOTTOOLS'], 'testrunner'))
+    from testrunner import run
+    sys.exit(run(testfunc))