diff --git a/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.C b/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.C
index b9ed09ae80..6a0cbb7861 100644
--- a/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.C
+++ b/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.C
@@ -173,6 +173,26 @@ Foam::dimensioned<Type>::dimensioned
 
 // * * * * * * * * * * * * * Static Member Functions * * * * * * * * * * * * //
 
+template<class Type>
+Foam::dimensioned<Type> Foam::dimensioned<Type>::lookupOrDefault
+(
+    const word& name,
+    const dictionary& dict,
+    const dimensionSet& dims,
+    const Type& defaultValue
+)
+{
+    if (dict.found(name))
+    {
+        return dimensioned<Type>(name, dims, dict.lookup(name));
+    }
+    else
+    {
+        return dimensioned<Type>(name, dims, defaultValue);
+    }
+}
+
+
 template<class Type>
 Foam::dimensioned<Type> Foam::dimensioned<Type>::lookupOrDefault
 (
@@ -193,6 +213,20 @@ Foam::dimensioned<Type> Foam::dimensioned<Type>::lookupOrDefault
 }
 
 
+template<class Type>
+Foam::dimensioned<Type> Foam::dimensioned<Type>::lookupOrAddToDict
+(
+    const word& name,
+    dictionary& dict,
+    const dimensionSet& dims,
+    const Type& defaultValue
+)
+{
+    Type value = dict.lookupOrAddDefault<Type>(name, defaultValue);
+    return dimensioned<Type>(name, dims, value);
+}
+
+
 template<class Type>
 Foam::dimensioned<Type> Foam::dimensioned<Type>::lookupOrAddToDict
 (
diff --git a/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.H b/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.H
index bb7f632918..2fcf61c2db 100644
--- a/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.H
+++ b/src/OpenFOAM/dimensionedTypes/dimensionedType/dimensionedType.H
@@ -123,7 +123,17 @@ public:
 
     // Static member functions
 
-        //- Construct from dictionary, with default value.
+        //- Construct from dictionary, with default dimensions and value.
+        static dimensioned<Type> lookupOrDefault
+        (
+            const word&,
+            const dictionary&,
+            const dimensionSet& dims = dimless,
+            const Type& defaultValue = pTraits<Type>::zero
+        );
+
+        //- Construct from dictionary, with default value and dimensions.
+        //  Deprecated, use form with dimensions before value.
         static dimensioned<Type> lookupOrDefault
         (
             const word&,
@@ -135,6 +145,17 @@ public:
         //- Construct from dictionary, with default value.
         //  If the value is not found, it is added into the dictionary.
         static dimensioned<Type> lookupOrAddToDict
+        (
+            const word&,
+            dictionary&,
+            const dimensionSet& dims = dimless,
+            const Type& defaultValue = pTraits<Type>::zero
+        );
+
+        //- Construct from dictionary, with default value.
+        //  If the value is not found, it is added into the dictionary.
+        //  Deprecated, use form with dimensions before value.
+        static dimensioned<Type> lookupOrAddToDict
         (
             const word&,
             dictionary&,