diff --git a/apps/openmw/mwclass/container.cpp b/apps/openmw/mwclass/container.cpp
index ec58a78ae..2e0d2d866 100644
--- a/apps/openmw/mwclass/container.cpp
+++ b/apps/openmw/mwclass/container.cpp
@@ -179,4 +179,17 @@ namespace MWClass
 
         return info;
     }
+
+    float Container::getCapactiy (const MWWorld::Ptr& ptr) const
+    {
+        ESMS::LiveCellRef<ESM::Container, MWWorld::RefData> *ref =
+            ptr.get<ESM::Container>();
+
+        return ref->base->weight;
+    }
+
+    float Container::getEncumbrance (const MWWorld::Ptr& ptr) const
+    {
+        return getContainerStore (ptr).getWeight();
+    }
 }
diff --git a/apps/openmw/mwclass/container.hpp b/apps/openmw/mwclass/container.hpp
index 3b1c8de09..61a0d912b 100644
--- a/apps/openmw/mwclass/container.hpp
+++ b/apps/openmw/mwclass/container.hpp
@@ -36,6 +36,14 @@ namespace MWClass
             virtual std::string getScript (const MWWorld::Ptr& ptr) const;
             ///< Return name of the script attached to ptr
 
+            virtual float getCapactiy (const MWWorld::Ptr& ptr) const;
+            ///< Return total weight that fits into the object. Throws an exception, if the object can't
+            /// hold other objects.
+
+            virtual float getEncumbrance (const MWWorld::Ptr& ptr) const;
+            ///< Returns total weight of objects inside this object (including modifications from magic
+            /// effects). Throws an exception, if the object can't hold other objects.
+
             static void registerSelf();
     };
 }
diff --git a/apps/openmw/mwclass/creature.cpp b/apps/openmw/mwclass/creature.cpp
index cf00f361b..c2623500d 100644
--- a/apps/openmw/mwclass/creature.cpp
+++ b/apps/openmw/mwclass/creature.cpp
@@ -5,6 +5,7 @@
 
 #include "../mwmechanics/creaturestats.hpp"
 #include "../mwmechanics/mechanicsmanager.hpp"
+#include "../mwmechanics/magiceffects.hpp"
 
 #include "../mwbase/environment.hpp"
 
@@ -56,8 +57,6 @@ namespace MWClass
 
             data->mCreatureStats.mLevel = ref->base->data.level;
 
-            // \todo add initial container content
-
             // store
             ptr.getRefData().setCustomData (data.release());
         }
@@ -166,4 +165,26 @@ namespace MWClass
 
         return info;
     }
+
+    float Creature::getCapactiy (const MWWorld::Ptr& ptr) const
+    {
+        const MWMechanics::CreatureStats& stats = getCreatureStats (ptr);
+        return stats.mAttributes[0].getModified()*5;
+    }
+
+    float Creature::getEncumbrance (const MWWorld::Ptr& ptr) const
+    {
+        float weight = getContainerStore (ptr).getWeight();
+
+        const MWMechanics::CreatureStats& stats = getCreatureStats (ptr);
+
+        weight -= stats.mMagicEffects.get (MWMechanics::EffectKey (8)).mMagnitude; // feather
+
+        weight += stats.mMagicEffects.get (MWMechanics::EffectKey (7)).mMagnitude; // burden
+
+        if (weight<0)
+            weight = 0;
+
+        return weight;
+    }
 }
diff --git a/apps/openmw/mwclass/creature.hpp b/apps/openmw/mwclass/creature.hpp
index 4a1a8285f..7224d3ee1 100644
--- a/apps/openmw/mwclass/creature.hpp
+++ b/apps/openmw/mwclass/creature.hpp
@@ -52,6 +52,14 @@ namespace MWClass
             virtual std::string getScript (const MWWorld::Ptr& ptr) const;
             ///< Return name of the script attached to ptr
 
+            virtual float getCapactiy (const MWWorld::Ptr& ptr) const;
+            ///< Return total weight that fits into the object. Throws an exception, if the object can't
+            /// hold other objects.
+
+            virtual float getEncumbrance (const MWWorld::Ptr& ptr) const;
+            ///< Returns total weight of objects inside this object (including modifications from magic
+            /// effects). Throws an exception, if the object can't hold other objects.
+
             static void registerSelf();
     };
 }
diff --git a/apps/openmw/mwclass/npc.cpp b/apps/openmw/mwclass/npc.cpp
index 444fe9965..556798bf4 100644
--- a/apps/openmw/mwclass/npc.cpp
+++ b/apps/openmw/mwclass/npc.cpp
@@ -88,11 +88,9 @@ namespace MWClass
             }
             else
             {
-                //TODO: do something with npdt12 maybe:p
+                /// \todo do something with npdt12 maybe:p
             }
 
-            // \todo add initial container content
-
             // store
             ptr.getRefData().setCustomData (data.release());
         }
@@ -325,4 +323,26 @@ namespace MWClass
 
         return info;
     }
+
+    float Npc::getCapactiy (const MWWorld::Ptr& ptr) const
+    {
+        const MWMechanics::CreatureStats& stats = getCreatureStats (ptr);
+        return stats.mAttributes[0].getModified()*5;
+    }
+
+    float Npc::getEncumbrance (const MWWorld::Ptr& ptr) const
+    {
+        float weight = getContainerStore (ptr).getWeight();
+
+        const MWMechanics::CreatureStats& stats = getCreatureStats (ptr);
+
+        weight -= stats.mMagicEffects.get (MWMechanics::EffectKey (8)).mMagnitude; // feather
+
+        weight += stats.mMagicEffects.get (MWMechanics::EffectKey (7)).mMagnitude; // burden
+
+        if (weight<0)
+            weight = 0;
+
+        return weight;
+    }
 }
diff --git a/apps/openmw/mwclass/npc.hpp b/apps/openmw/mwclass/npc.hpp
index 38b0ba03f..0cfad0347 100644
--- a/apps/openmw/mwclass/npc.hpp
+++ b/apps/openmw/mwclass/npc.hpp
@@ -74,6 +74,14 @@ namespace MWClass
             ///< Return desired movement vector (determined based on movement settings,
             /// stance and stats).
 
+            virtual float getCapactiy (const MWWorld::Ptr& ptr) const;
+            ///< Return total weight that fits into the object. Throws an exception, if the object can't
+            /// hold other objects.
+
+            virtual float getEncumbrance (const MWWorld::Ptr& ptr) const;
+            ///< Returns total weight of objects inside this object (including modifications from magic
+            /// effects). Throws an exception, if the object can't hold other objects.
+
             static void registerSelf();
     };
 }
diff --git a/apps/openmw/mwworld/class.cpp b/apps/openmw/mwworld/class.cpp
index c19aea5e4..c014fb375 100644
--- a/apps/openmw/mwworld/class.cpp
+++ b/apps/openmw/mwworld/class.cpp
@@ -142,6 +142,16 @@ namespace MWWorld
         throw std::logic_error ("value not supported by this class");
     }
 
+    float Class::getCapactiy (const MWWorld::Ptr& ptr) const
+    {
+        throw std::runtime_error ("capacity not supported by this class");
+    }
+
+    float Class::getEncumbrance (const MWWorld::Ptr& ptr) const
+    {
+        throw std::runtime_error ("encumbrance not supported by class");
+    }
+
     const Class& Class::get (const std::string& key)
     {
         std::map<std::string, boost::shared_ptr<Class> >::const_iterator iter = sClasses.find (key);
diff --git a/apps/openmw/mwworld/class.hpp b/apps/openmw/mwworld/class.hpp
index 57d8bf711..7bf13d822 100644
--- a/apps/openmw/mwworld/class.hpp
+++ b/apps/openmw/mwworld/class.hpp
@@ -164,6 +164,16 @@ namespace MWWorld
             ///< Return trade value of the object. Throws an exception, if the object can't be traded.
             /// (default implementation: throws an exception)
 
+            virtual float getCapactiy (const MWWorld::Ptr& ptr) const;
+            ///< Return total weight that fits into the object. Throws an exception, if the object can't
+            /// hold other objects.
+            /// (default implementation: throws an exception)
+
+            virtual float getEncumbrance (const MWWorld::Ptr& ptr) const;
+            ///< Returns total weight of objects inside this object (including modifications from magic
+            /// effects). Throws an exception, if the object can't hold other objects.
+            /// (default implementation: throws an exception)
+
             static const Class& get (const std::string& key);
             ///< If there is no class for this \a key, an exception is thrown.