diff --git a/AsyncDisplayKit/Layout/ASDimension.h b/AsyncDisplayKit/Layout/ASDimension.h
index ee642a59fe..a1640f350b 100644
--- a/AsyncDisplayKit/Layout/ASDimension.h
+++ b/AsyncDisplayKit/Layout/ASDimension.h
@@ -172,7 +172,7 @@ ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT CGFloat ASDimensionResolve(ASDimensio
 @end
 
 
-#pragma mark - ASRelativeSize
+#pragma mark - ASLayoutSize
 
 /**
  * Expresses a size with relative dimensions. Only used for calculations internally in ASDimension.h
@@ -180,14 +180,14 @@ ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT CGFloat ASDimensionResolve(ASDimensio
 typedef struct {
   ASDimension width;
   ASDimension height;
-} ASRelativeSize;
+} ASLayoutSize;
 
 /*
- * Creates an ASRelativeSize with provided min and max dimensions.
+ * Creates an ASLayoutSize with provided min and max dimensions.
  */
-ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT ASRelativeSize ASRelativeSizeMake(ASDimension width, ASDimension height)
+ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT ASLayoutSize ASLayoutSizeMake(ASDimension width, ASDimension height)
 {
-  ASRelativeSize size;
+  ASLayoutSize size;
   size.width = width;
   size.height = height;
   return size;
@@ -196,7 +196,7 @@ ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT ASRelativeSize ASRelativeSizeMake(ASD
 /*
  * Returns a string representation of a relative size.
  */
-ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT NSString *NSStringFromASRelativeSize(ASRelativeSize size);
+ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT NSString *NSStringFromASLayoutSize(ASLayoutSize size);
 
 #pragma mark - ASSizeRange
 
diff --git a/AsyncDisplayKit/Layout/ASDimension.mm b/AsyncDisplayKit/Layout/ASDimension.mm
index aaf534d828..260b232e51 100644
--- a/AsyncDisplayKit/Layout/ASDimension.mm
+++ b/AsyncDisplayKit/Layout/ASDimension.mm
@@ -70,17 +70,17 @@ NSString *NSStringFromASDimension(ASDimension dimension)
 @end
 
 
-#pragma mark - ASRelativeSize
+#pragma mark - ASLayoutSize
 
 // ** Resolve this relative size relative to a parent size. */
-ASDISPLAYNODE_INLINE CGSize ASRelativeSizeResolveSize(ASRelativeSize relativeSize, CGSize parentSize, CGSize autoSize)
+ASDISPLAYNODE_INLINE CGSize ASLayoutSizeResolveSize(ASLayoutSize layoutSize, CGSize parentSize, CGSize autoSize)
 {
-  return CGSizeMake(ASDimensionResolve(relativeSize.width, parentSize.width, autoSize.width),
-                    ASDimensionResolve(relativeSize.height, parentSize.height, autoSize.height));
+  return CGSizeMake(ASDimensionResolve(layoutSize.width, parentSize.width, autoSize.width),
+                    ASDimensionResolve(layoutSize.height, parentSize.height, autoSize.height));
 }
 
-// ** Returns a string formatted to contain the data from an ASRelativeSize. */
-ASDISPLAYNODE_INLINE NSString *NSStringFromASRelativeSize(ASRelativeSize size)
+// ** Returns a string formatted to contain the data from an ASLayoutSize. */
+ASDISPLAYNODE_INLINE NSString *NSStringFromASLayoutSize(ASLayoutSize size)
 {
   return [NSString stringWithFormat:@"{%@, %@}",
           NSStringFromASDimension(size.width),
@@ -94,9 +94,9 @@ NSString *NSStringFromASLayoutElementSize(ASLayoutElementSize size)
 {
   return [NSString stringWithFormat:
           @"<ASLayoutElementSize: exact=%@, min=%@, max=%@>",
-          NSStringFromASRelativeSize(ASRelativeSizeMake(size.width, size.height)),
-          NSStringFromASRelativeSize(ASRelativeSizeMake(size.minWidth, size.minHeight)),
-          NSStringFromASRelativeSize(ASRelativeSizeMake(size.maxWidth, size.maxHeight))];
+          NSStringFromASLayoutSize(ASLayoutSizeMake(size.width, size.height)),
+          NSStringFromASLayoutSize(ASLayoutSizeMake(size.minWidth, size.minHeight)),
+          NSStringFromASLayoutSize(ASLayoutSizeMake(size.maxWidth, size.maxHeight))];
 }
 
 ASDISPLAYNODE_INLINE void ASLayoutElementSizeConstrain(CGFloat minVal, CGFloat exactVal, CGFloat maxVal, CGFloat *outMin, CGFloat *outMax)
@@ -133,9 +133,9 @@ ASDISPLAYNODE_INLINE void ASLayoutElementSizeConstrain(CGFloat minVal, CGFloat e
 
 ASSizeRange ASLayoutElementSizeResolveAutoSize(ASLayoutElementSize size, const CGSize parentSize, ASSizeRange autoASSizeRange)
 {
-  CGSize resolvedExact = ASRelativeSizeResolveSize(ASRelativeSizeMake(size.width, size.height), parentSize, {NAN, NAN});
-  CGSize resolvedMin = ASRelativeSizeResolveSize(ASRelativeSizeMake(size.minWidth, size.minHeight), parentSize, autoASSizeRange.min);
-  CGSize resolvedMax = ASRelativeSizeResolveSize(ASRelativeSizeMake(size.maxWidth, size.maxHeight), parentSize, autoASSizeRange.max);
+  CGSize resolvedExact = ASLayoutSizeResolveSize(ASLayoutSizeMake(size.width, size.height), parentSize, {NAN, NAN});
+  CGSize resolvedMin = ASLayoutSizeResolveSize(ASLayoutSizeMake(size.minWidth, size.minHeight), parentSize, autoASSizeRange.min);
+  CGSize resolvedMax = ASLayoutSizeResolveSize(ASLayoutSizeMake(size.maxWidth, size.maxHeight), parentSize, autoASSizeRange.max);
   
   CGSize rangeMin, rangeMax;
   ASLayoutElementSizeConstrain(resolvedMin.width, resolvedExact.width, resolvedMax.width, &rangeMin.width, &rangeMax.width);
diff --git a/AsyncDisplayKit/Layout/ASLayoutElement.h b/AsyncDisplayKit/Layout/ASLayoutElement.h
index 47881c6e8a..e7680abc0b 100644
--- a/AsyncDisplayKit/Layout/ASLayoutElement.h
+++ b/AsyncDisplayKit/Layout/ASLayoutElement.h
@@ -247,7 +247,7 @@ extern NSString * const ASLayoutElementStyleLayoutPositionProperty;
  * and the preferredSize exceeds these, the minSize or maxSize will be enforced. If this optional value is not 
  * provided, the layout element’s size will default to it’s intrinsic content size provided calculateSizeThatFits:
  * 
- * @discussion This method is optional, but one of either preferredSize or preferredRelativeSize is required 
+ * @discussion This method is optional, but one of either preferredSize or preferredLayoutSize is required
  * for nodes that either have no intrinsic content size or 
  * should be laid out at a different size than its intrinsic content size. For example, this property could be 
  * set on an ASImageNode to display at a size different from the underlying image size. 
@@ -280,27 +280,27 @@ extern NSString * const ASLayoutElementStyleLayoutPositionProperty;
 - (CGSize)maxSize UNAVAILABLE_ATTRIBUTE;
 
 /**
- * @abstract Provides a suggested RELATIVE size for a layout element. An ASRelativeSize uses percentages rather 
- * than points to specify layout. E.g. width should be 50% of the parent’s width. If the optional minRelativeSize or 
- * maxRelativeSize are provided, and the preferredRelativeSize exceeds these, the minRelativeSize or maxRelativeSize 
+ * @abstract Provides a suggested RELATIVE size for a layout element. An ASLayoutSize uses percentages rather
+ * than points to specify layout. E.g. width should be 50% of the parent’s width. If the optional minLayoutSize or
+ * maxLayoutSize are provided, and the preferredLayoutSize exceeds these, the minLayoutSize or maxLayoutSize 
  * will be enforced. If this optional value is not provided, the layout element’s size will default to its intrinsic content size 
  * provided calculateSizeThatFits:
  */
-@property (nonatomic, assign, readwrite) ASRelativeSize preferredRelativeSize;
+@property (nonatomic, assign, readwrite) ASLayoutSize preferredLayoutSize;
 
 /**
  * @abstract An optional property that provides a minimum RELATIVE size bound for a layout element. If provided, this
  * restriction will always be enforced. If a parent layout element’s minimum relative size is smaller than its child’s minimum
  * relative size, the child’s minimum relative size will be enforced and its size will extend out of the layout spec’s.
  */
-@property (nonatomic, assign, readwrite) ASRelativeSize minRelativeSize;
+@property (nonatomic, assign, readwrite) ASLayoutSize minLayoutSize;
 
 /**
  * @abstract An optional property that provides a maximum RELATIVE size bound for a layout element. If provided, this
  * restriction will always be enforced. If a parent layout element’s maximum relative size is smaller than its child’s maximum
  * relative size, the child’s maximum relative size will be enforced and its size will extend out of the layout spec’s.
  */
-@property (nonatomic, assign, readwrite) ASRelativeSize maxRelativeSize;
+@property (nonatomic, assign, readwrite) ASLayoutSize maxLayoutSize;
 
 
 #pragma mark - ASStackLayoutElement
diff --git a/AsyncDisplayKit/Layout/ASLayoutElement.mm b/AsyncDisplayKit/Layout/ASLayoutElement.mm
index ac1fe5573a..8387c2ef2e 100644
--- a/AsyncDisplayKit/Layout/ASLayoutElement.mm
+++ b/AsyncDisplayKit/Layout/ASLayoutElement.mm
@@ -113,7 +113,7 @@ do {\
 }
 
 @dynamic width, height, minWidth, maxWidth, minHeight, maxHeight;
-@dynamic preferredSize, minSize, maxSize, preferredRelativeSize, minRelativeSize, maxRelativeSize;
+@dynamic preferredSize, minSize, maxSize, preferredLayoutSize, minLayoutSize, maxLayoutSize;
 
 #pragma mark - Lifecycle
 
@@ -250,40 +250,40 @@ do {\
   self.maxHeight = ASDimensionMakeWithPoints(maxSize.height);
 }
 
-- (ASRelativeSize)preferredRelativeSize
+- (ASLayoutSize)preferredLayoutSize
 {
   ASDN::MutexLocker l(__instanceLock__);
-  return ASRelativeSizeMake(_size.width, _size.height);
+  return ASLayoutSizeMake(_size.width, _size.height);
 }
 
-- (void)setPreferredRelativeSize:(ASRelativeSize)preferredRelativeSize
+- (void)setPreferredLayoutSize:(ASLayoutSize)preferredLayoutSize
 {
-  self.width = preferredRelativeSize.width;
-  self.height = preferredRelativeSize.height;
+  self.width = preferredLayoutSize.width;
+  self.height = preferredLayoutSize.height;
 }
 
-- (ASRelativeSize)minRelativeSize
+- (ASLayoutSize)minLayoutSize
 {
   ASDN::MutexLocker l(__instanceLock__);
-  return ASRelativeSizeMake(_size.minWidth, _size.minHeight);
+  return ASLayoutSizeMake(_size.minWidth, _size.minHeight);
 }
 
-- (void)setMinRelativeSize:(ASRelativeSize)minRelativeSize
+- (void)setMinLayoutSize:(ASLayoutSize)minLayoutSize
 {
-  self.minWidth = minRelativeSize.width;
-  self.minHeight = minRelativeSize.height;
+  self.minWidth = minLayoutSize.width;
+  self.minHeight = minLayoutSize.height;
 }
 
-- (ASRelativeSize)maxRelativeSize
+- (ASLayoutSize)maxLayoutSize
 {
   ASDN::MutexLocker l(__instanceLock__);
-  return ASRelativeSizeMake(_size.maxWidth, _size.maxHeight);
+  return ASLayoutSizeMake(_size.maxWidth, _size.maxHeight);
 }
 
-- (void)setMaxRelativeSize:(ASRelativeSize)maxRelativeSize
+- (void)setMaxLayoutSize:(ASLayoutSize)maxLayoutSize
 {
-  self.maxWidth = maxRelativeSize.width;
-  self.maxHeight = maxRelativeSize.height;
+  self.maxWidth = maxLayoutSize.width;
+  self.maxHeight = maxLayoutSize.height;
 }
 
 
diff --git a/AsyncDisplayKitTests/ASLayoutElementStyleTests.m b/AsyncDisplayKitTests/ASLayoutElementStyleTests.m
index ecdbeff6bf..4e749d8243 100644
--- a/AsyncDisplayKitTests/ASLayoutElementStyleTests.m
+++ b/AsyncDisplayKitTests/ASLayoutElementStyleTests.m
@@ -73,29 +73,29 @@
   XCTAssertTrue(ASDimensionEqualToDimension(style.maxHeight, ASDimensionMakeWithPoints(size.height)));
 }
 
-- (void)setSettingSizeViaRelativeSize
+- (void)setSettingSizeViaLayoutSize
 {
   ASLayoutElementStyle *style = [ASLayoutElementStyle new];
   
-  ASRelativeSize relativeSize = ASRelativeSizeMake(ASDimensionMake(100), ASDimensionMake(100));
+  ASLayoutSize layoutSize = ASLayoutSizeMake(ASDimensionMake(100), ASDimensionMake(100));
   
-  style.preferredRelativeSize = relativeSize;
-  XCTAssertTrue(ASDimensionEqualToDimension(style.width, relativeSize.width));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.height, relativeSize.height));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.preferredRelativeSize.width, relativeSize.width));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.preferredRelativeSize.height, relativeSize.height));
+  style.preferredLayoutSize = layoutSize;
+  XCTAssertTrue(ASDimensionEqualToDimension(style.width, layoutSize.width));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.height, layoutSize.height));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.preferredLayoutSize.width, layoutSize.width));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.preferredLayoutSize.height, layoutSize.height));
   
-  style.minRelativeSize = relativeSize;
-  XCTAssertTrue(ASDimensionEqualToDimension(style.minWidth, relativeSize.width));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.minHeight, relativeSize.height));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.minRelativeSize.width, relativeSize.width));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.minRelativeSize.height, relativeSize.height));
+  style.minLayoutSize = layoutSize;
+  XCTAssertTrue(ASDimensionEqualToDimension(style.minWidth, layoutSize.width));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.minHeight, layoutSize.height));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.minLayoutSize.width, layoutSize.width));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.minLayoutSize.height, layoutSize.height));
   
-  style.maxRelativeSize = relativeSize;
-  XCTAssertTrue(ASDimensionEqualToDimension(style.maxWidth, relativeSize.width));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.maxHeight, relativeSize.height));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.maxRelativeSize.width, relativeSize.width));
-  XCTAssertTrue(ASDimensionEqualToDimension(style.maxRelativeSize.height, relativeSize.height));
+  style.maxLayoutSize = layoutSize;
+  XCTAssertTrue(ASDimensionEqualToDimension(style.maxWidth, layoutSize.width));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.maxHeight, layoutSize.height));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.maxLayoutSize.width, layoutSize.width));
+  XCTAssertTrue(ASDimensionEqualToDimension(style.maxLayoutSize.height, layoutSize.height));
 }
   
 - (void)testSettingPropertiesWillCallDelegate