diff --git a/sched/Kconfig b/sched/Kconfig
index 1a2af8dcc0..69b1992653 100644
--- a/sched/Kconfig
+++ b/sched/Kconfig
@@ -219,7 +219,8 @@ config START_DAY
 
 config PREALLOC_TIMERS
 	int "Number of pre-allocated POSIX timers"
-	default 8
+	default 4 if DEFAULT_SMALL
+	default 8 if !DEFAULT_SMALL
 	---help---
 		The number of pre-allocated POSIX timer structures.  The system manages a
 		pool of preallocated timer structures to minimize dynamic allocations.  Set to
@@ -250,7 +251,8 @@ if IRQCHAIN
 
 config PREALLOC_IRQCHAIN
 	int "Number of pre-allocated irq chains"
-	default 8
+	default 4 if DEFAULT_SMALL
+	default 8 if !DEFAULT_SMALL
 	---help---
 		The number of pre-allocated irq chain structures.  The system manages
 		a pool of preallocated irq chain structures to minimize dynamic
@@ -1154,7 +1156,8 @@ if PRIORITY_INHERITANCE
 
 config SEM_PREALLOCHOLDERS
 	int "Number of pre-allocated holders"
-	default 16
+	default 4 if DEFAULT_SMALL
+	default 8 if !DEFAULT_SMALL
 	---help---
 		This setting is only used if priority inheritance is enabled.
 		It defines the maximum number of different threads (minus one) that
@@ -1348,7 +1351,8 @@ menu "Signal Configuration"
 
 config SIG_PREALLOC_IRQ_ACTIONS
 	int "Number of pre-allocated irq actions"
-	default 8
+	default 4 if DEFAULT_SMALL
+	default 8 if !DEFAULT_SMALL
 	---help---
 		The number of pre-allocated irq action structures.
 
@@ -1575,14 +1579,16 @@ menu "POSIX Message Queue Options"
 
 config PREALLOC_MQ_MSGS
 	int "Number of pre-allocated messages"
-	default 4
+	default 4 if DEFAULT_SMALL
+	default 8 if !DEFAULT_SMALL
 	---help---
 		The number of pre-allocated message structures.  The system manages
 		a pool of preallocated message structures to minimize dynamic allocations
 
 config PREALLOC_MQ_IRQ_MSGS
 	int "Number of pre-allocated irq messages"
-	default 8
+	default 4 if DEFAULT_SMALL
+	default 8 if !DEFAULT_SMALL
 	---help---
 		The number of pre-allocated irq message structures.