diff --git a/Tablet.xcworkspace/xcuserdata/max.xcuserdatad/UserInterfaceState.xcuserstate b/Tablet.xcworkspace/xcuserdata/max.xcuserdatad/UserInterfaceState.xcuserstate
index c9f97f2..6ab9c7e 100644
Binary files a/Tablet.xcworkspace/xcuserdata/max.xcuserdatad/UserInterfaceState.xcuserstate and b/Tablet.xcworkspace/xcuserdata/max.xcuserdatad/UserInterfaceState.xcuserstate differ
diff --git a/Tablet/TablePrototypeRowBuilder.swift b/Tablet/TablePrototypeRowBuilder.swift
new file mode 100644
index 0000000..1f3d9f4
--- /dev/null
+++ b/Tablet/TablePrototypeRowBuilder.swift
@@ -0,0 +1,27 @@
+//
+//    Copyright (c) 2015 Max Sokolov https://twitter.com/max_sokolov
+//
+//    Permission is hereby granted, free of charge, to any person obtaining a copy of
+//    this software and associated documentation files (the "Software"), to deal in
+//    the Software without restriction, including without limitation the rights to
+//    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+//    the Software, and to permit persons to whom the Software is furnished to do so,
+//    subject to the following conditions:
+//
+//    The above copyright notice and this permission notice shall be included in all
+//    copies or substantial portions of the Software.
+//
+//    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+//    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+//    COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+//    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+//    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import UIKit
+import Foundation
+
+public class TablePrototypeRowBuilder<DataType: Hashable, CellType: ConfigurableCell where CellType.T == DataType, CellType: UITableViewCell> : TableBaseRowBuilder<DataType, CellType> {
+
+    
+}
\ No newline at end of file
diff --git a/Tablet/TableRowBuilder.swift b/Tablet/TableRowBuilder.swift
index 7c57528..72325a7 100644
--- a/Tablet/TableRowBuilder.swift
+++ b/Tablet/TableRowBuilder.swift
@@ -44,6 +44,8 @@ public protocol RowBuilder {
     
     var reusableIdentifier: String { get }
     var numberOfRows: Int { get }
+    
+    var rowHeight: Float { get }
     var estimatedRowHeight: Float { get }
     
     func invoke(action action: ActionType, cell: UITableViewCell?, indexPath: NSIndexPath, itemIndex: Int, userInfo: [NSObject: AnyObject]?) -> AnyObject?
@@ -68,6 +70,10 @@ public class TableBaseRowBuilder<DataType, CellType where CellType: UITableViewC
         return 44
     }
     
+    public var rowHeight: Float {
+        return 0
+    }
+    
     public init(item: DataType, id: String? = nil) {
 
         reusableIdentifier = id ?? String(CellType)
diff --git a/Tablet/Tablet.swift b/Tablet/Tablet.swift
index 46b8767..3a1f663 100644
--- a/Tablet/Tablet.swift
+++ b/Tablet/Tablet.swift
@@ -106,6 +106,7 @@ public protocol ConfigurableCell {
 
     static func reusableIdentifier() -> String
     static func estimatedHeight() -> Float
+    static func defaultHeight() -> Float?
     func configure(_: T)
 }
 
@@ -114,4 +115,8 @@ public extension ConfigurableCell where Self: UITableViewCell {
     static func reusableIdentifier() -> String {
         return String(self)
     }
+    
+    static func defaultHeight() -> Float? {
+        return nil
+    }
 }
\ No newline at end of file
diff --git a/Tablet/Tablet.xcodeproj/project.pbxproj b/Tablet/Tablet.xcodeproj/project.pbxproj
index 49ea0b1..b0a1e05 100644
--- a/Tablet/Tablet.xcodeproj/project.pbxproj
+++ b/Tablet/Tablet.xcodeproj/project.pbxproj
@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		501C70391CF387090099458A /* TablePrototypeRowBuilder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 501C70381CF387090099458A /* TablePrototypeRowBuilder.swift */; };
 		DAC2D6741C9D743D009E9C19 /* Tablet.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = DAC2D6691C9D743D009E9C19 /* Tablet.framework */; };
 		DAC2D6871C9D7517009E9C19 /* Tablet.h in Headers */ = {isa = PBXBuildFile; fileRef = DAC2D6851C9D7517009E9C19 /* Tablet.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		DAC2D6901C9D799E009E9C19 /* TableDirector.swift in Sources */ = {isa = PBXBuildFile; fileRef = DAC2D68C1C9D799E009E9C19 /* TableDirector.swift */; };
@@ -27,6 +28,7 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		501C70381CF387090099458A /* TablePrototypeRowBuilder.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TablePrototypeRowBuilder.swift; sourceTree = "<group>"; };
 		DAC2D6691C9D743D009E9C19 /* Tablet.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Tablet.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		DAC2D6731C9D743D009E9C19 /* TabletTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = TabletTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
 		DAC2D6841C9D7517009E9C19 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
@@ -93,6 +95,7 @@
 				DAC2D68C1C9D799E009E9C19 /* TableDirector.swift */,
 				DAC2D68D1C9D799E009E9C19 /* TableRowBuilder.swift */,
 				DAC2D68E1C9D799E009E9C19 /* TableSectionBuilder.swift */,
+				501C70381CF387090099458A /* TablePrototypeRowBuilder.swift */,
 			);
 			name = Classes;
 			sourceTree = "<group>";
@@ -218,6 +221,7 @@
 				DAC2D6901C9D799E009E9C19 /* TableDirector.swift in Sources */,
 				DAC2D6921C9D799E009E9C19 /* TableSectionBuilder.swift in Sources */,
 				DAC2D6911C9D799E009E9C19 /* TableRowBuilder.swift in Sources */,
+				501C70391CF387090099458A /* TablePrototypeRowBuilder.swift in Sources */,
 				DAC2D6931C9D799E009E9C19 /* Tablet.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;