diff --git a/RhSolutions.AddIn/RhSolutions.AddIn.csproj b/RhSolutions.AddIn/RhSolutions.AddIn.csproj
index c77a8b8..9e85751 100644
--- a/RhSolutions.AddIn/RhSolutions.AddIn.csproj
+++ b/RhSolutions.AddIn/RhSolutions.AddIn.csproj
@@ -36,7 +36,7 @@
 		<PackageReference Include="Microsoft.Extensions.Http" Version="7.0.0" />
 		<PackageReference Include="netDxf" Version="2022.11.2" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-		<PackageReference Include="RhSolutions.Sku" Version="0.1.5" />
+		<PackageReference Include="RhSolutions.Sku" Version="0.1.8" />
 		<PackageReference Include="System.Buffers" Version="4.5.1" />
 		<PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.4" />
 	</ItemGroup>
diff --git a/RhSolutions.AddIn/Services/DxfWriter.cs b/RhSolutions.AddIn/Services/DxfWriter.cs
index d8ed26a..9dccd05 100644
--- a/RhSolutions.AddIn/Services/DxfWriter.cs
+++ b/RhSolutions.AddIn/Services/DxfWriter.cs
@@ -47,7 +47,7 @@ public class DxfWriter : IWriter
                 Alignment = TextAlignment.MiddleLeft,
                 WidthFactor = 0.85
             },
-            new Text(product.ProductSku, new Vector2(x + 24750, y), 250)
+            new Text(product.ProductSku.ToString(), new Vector2(x + 24750, y), 250)
             {
                 Alignment = TextAlignment.MiddleCenter,
                 WidthFactor = 0.85
diff --git a/RhSolutions.AddIn/Services/ExcelReader.cs b/RhSolutions.AddIn/Services/ExcelReader.cs
index d2b77cd..0403d7f 100644
--- a/RhSolutions.AddIn/Services/ExcelReader.cs
+++ b/RhSolutions.AddIn/Services/ExcelReader.cs
@@ -60,7 +60,7 @@ public class ExcelReader : IReader, IDisposable
                 continue;
             }
 
-            Product product = new() { ProductSku = currentSku };
+            Product product = new() { ProductSku = new(currentSku) };
 
             if (readResult.ContainsKey(product))
             {
@@ -126,7 +126,7 @@ public class ExcelReader : IReader, IDisposable
 
                     Product p = new()
                     {
-                        ProductSku = sku.ToString(),
+                        ProductSku = new (sku.ToString()),
                         ProductLine = productLine.ToString(),
                         Name = name.ToString(),
                         ProductMeasure = productMeasure
diff --git a/RhSolutions.AddIn/Services/ExcelWriter.cs b/RhSolutions.AddIn/Services/ExcelWriter.cs
index 445e2d5..7685eac 100644
--- a/RhSolutions.AddIn/Services/ExcelWriter.cs
+++ b/RhSolutions.AddIn/Services/ExcelWriter.cs
@@ -110,7 +110,7 @@ public class ExcelWriter : IWriter, IDisposable
         Range worksheetCells = _worksheet.Cells;
         Range skuColumn = _skuCell.EntireColumn;
 
-        int? row = GetPositionRow(skuColumn, positionAmount.Key.ProductSku, positionAmount.Key.ProductLine);
+        int? row = GetPositionRow(skuColumn, positionAmount.Key.ProductSku.ToString(), positionAmount.Key.ProductLine);
 
         if (row != null)
         {
@@ -126,7 +126,7 @@ public class ExcelWriter : IWriter, IDisposable
 
         if (_oldSkuCell != null)
         {
-            row = GetPositionRow(_oldSkuCell.EntireColumn, positionAmount.Key.ProductSku, positionAmount.Key.ProductLine);
+            row = GetPositionRow(_oldSkuCell.EntireColumn, positionAmount.Key.ProductSku.ToString(), positionAmount.Key.ProductLine);
 
             if (row != null)
             {
@@ -141,7 +141,7 @@ public class ExcelWriter : IWriter, IDisposable
             }
         }
 
-        string sku = positionAmount.Key.ProductSku.Substring(1, 6);
+        string sku = positionAmount.Key.ProductSku.Article;
         row = GetPositionRow(skuColumn, sku, positionAmount.Key.ProductLine);
 
         if (row != null)
diff --git a/RhSolutions.AddIn/Tools/WorksheetExtensions.cs b/RhSolutions.AddIn/Tools/WorksheetExtensions.cs
index 29ab798..7d317a8 100644
--- a/RhSolutions.AddIn/Tools/WorksheetExtensions.cs
+++ b/RhSolutions.AddIn/Tools/WorksheetExtensions.cs
@@ -18,13 +18,15 @@ public static class WorksheetExtensions
         Range skuCell;
         Range programLineCell;
         Range nameCell;
+        Range measureCell;
 
         Range[] cells = new[]
         {
             amountCell = worksheet.Cells.Find(pricelistParameters["Amount"]),
             skuCell = worksheet.Cells.Find(pricelistParameters["Sku"]),
             programLineCell = worksheet.Cells.Find(pricelistParameters["ProductLine"]),
-            nameCell = worksheet.Cells.Find(pricelistParameters["Name"])
+            nameCell = worksheet.Cells.Find(pricelistParameters["Name"]),
+            measureCell = worksheet.Cells.Find(pricelistParameters["Measure"])
         };
 
         return cells.All(x => x != null);
diff --git a/RhSolutions.Tests/CanReadProducts.cs b/RhSolutions.Tests/CanReadProducts.cs
index fd33a69..1fa7357 100644
--- a/RhSolutions.Tests/CanReadProducts.cs
+++ b/RhSolutions.Tests/CanReadProducts.cs
@@ -39,7 +39,7 @@ public class CanReadProducts : IDisposable
 
         Assert.NotNull(products);
         Assert.NotEmpty(products);
-        Assert.Equal("11600011001", products.First().Key.ProductSku);
+        Assert.Equal("11600011001", products.First().Key.ProductSku?.ToString());
         Assert.Equal(20.0, products.First().Value);
         Assert.Equal(125.0, products.Sum(p => p.Value));
         Assert.Equal(3, products.Count());
diff --git a/RhSolutions.Tests/TestWorkbooks/Specifications/HeatingFloor.xlsx b/RhSolutions.Tests/TestWorkbooks/Specifications/HeatingFloor.xlsx
index f0b76f3..20416e0 100644
Binary files a/RhSolutions.Tests/TestWorkbooks/Specifications/HeatingFloor.xlsx and b/RhSolutions.Tests/TestWorkbooks/Specifications/HeatingFloor.xlsx differ