diff --git a/OpenNest.Core/PlateOptimizerResult.cs b/OpenNest.Core/PlateOptimizerResult.cs
new file mode 100644
index 0000000..eb793ce
--- /dev/null
+++ b/OpenNest.Core/PlateOptimizerResult.cs
@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+
+namespace OpenNest
+{
+    public class PlateOptimizerResult
+    {
+        public List<Part> Parts { get; set; } = new();
+        public PlateOption ChosenSize { get; set; }
+        public double NetCost { get; set; }
+        public double Utilization { get; set; }
+    }
+}
diff --git a/OpenNest.Core/PlateOption.cs b/OpenNest.Core/PlateOption.cs
new file mode 100644
index 0000000..e48f06c
--- /dev/null
+++ b/OpenNest.Core/PlateOption.cs
@@ -0,0 +1,11 @@
+namespace OpenNest
+{
+    public class PlateOption
+    {
+        public double Width { get; set; }
+        public double Length { get; set; }
+        public double Cost { get; set; }
+
+        public double Area => Width * Length;
+    }
+}