diff --git a/build.gradle.kts b/build.gradle.kts
index 98a6f3e..ecf732c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ val githubActor = project.findProperty("gpr.user") as String? ?: System.getenv("
 val githubToken = project.findProperty("gpr.key") as String? ?: System.getenv("GITHUB_TOKEN")
 
 group = "me.tech"
-version = "0.0.7"
+version = "0.0.8"
 
 repositories {
     mavenCentral()
diff --git a/src/main/kotlin/me/tech/mcchestui/GUI.kt b/src/main/kotlin/me/tech/mcchestui/GUI.kt
index b01115f..2cd7f24 100644
--- a/src/main/kotlin/me/tech/mcchestui/GUI.kt
+++ b/src/main/kotlin/me/tech/mcchestui/GUI.kt
@@ -16,16 +16,15 @@ import org.bukkit.event.inventory.InventoryCloseEvent
 import org.bukkit.event.inventory.InventoryDragEvent
 import org.bukkit.inventory.ItemStack
 import org.bukkit.plugin.java.JavaPlugin
-import java.time.Duration
 
-fun toSlot(x: Int, y: Int, type: GUIType) = x + (y * type.slotsPerRow)
+fun toSlot(x: Int, y: Int, type: GUIType) = (x - 1) + ((y - 1) * type.slotsPerRow)
 fun fromSlot(s: Int, type: GUIType) = Pair(s % type.slotsPerRow, s / type.slotsPerRow)
 
 class GUI(
 	plugin: JavaPlugin,
 	val title: Component,
 	val type: GUIType,
-	val rows: Int,
+	rows: Int,
 	private val render: GUI.() -> Unit
 ): Listener {
 	@Deprecated(
@@ -64,25 +63,27 @@ class GUI(
 	 */
 	var onCloseInventory: GUICloseEvent? = null
 
-	var slots = arrayOfNulls<Slot>(type.slotsPerRow * rows)
+	val rows =
+		if(type == GUIType.CHEST) {
+			rows
+			// We can assert this won't be null since the
+			// only null value is already checked.
+		} else {
+			type.rows!!
+		}
 
 	val inventory =
 		// Chest GUI.
 		if(type == GUIType.CHEST) {
 			plugin.server.createInventory(null, type.slotsPerRow * rows, title)
-		// Other GUi.
+			// Other GUi.
 		} else {
 			plugin.server.createInventory(null, type.inventoryType, title)
 		}
 
-	private val inventoryRows =
-		if(type == GUIType.CHEST) {
-			rows
-		// We can assert this won't be null since the
-		// only null value is already checked.
-		} else {
-			type.rows!!
-		}
+
+	// prevent user from inputting row amount for anything other than chest.
+	private var slots = arrayOfNulls<Slot>(type.slotsPerRow * this.rows)
 
 	init {
 		plugin.server.pluginManager.registerEvents(this, plugin)
@@ -161,17 +162,17 @@ class GUI(
 	fun fillBorder(builder: Slot.() -> Unit) {
 		all(builder)
 
-		val x1 = 1
+		val x1 = 2
 		// Just makes it work with 1 row chest guis.
-		val y1 = if(type == GUIType.CHEST && rows == 1) 0 else 1
+		val y1 = if(type == GUIType.CHEST && rows == 1 || type == GUIType.HOPPER) 1 else 2
 
-		val x2 = type.slotsPerRow - 2
+		val x2 = type.slotsPerRow - 1
 		// Doesn't really matter if we hard code these values,
 		// what're they gonna do? Change? well besides chest guis.
 		val y2 = when(type) {
-			GUIType.CHEST -> if(rows > 2) inventoryRows - 2 else 1
-			GUIType.HOPPER -> 0
-			GUIType.DISPENSER -> 1
+			GUIType.CHEST -> if(rows > 2) rows - 1 else 2
+			GUIType.HOPPER -> 1
+			GUIType.DISPENSER -> 2
 		}
 
 		fill(x1, y1, x2, y2) {
@@ -184,8 +185,9 @@ class GUI(
 	 *
 	 * @param builder slot builder.
 	 */
-	fun all(builder: Slot.() -> Unit) = fill(0, 0, type.slotsPerRow - 1, inventoryRows - 1, builder)
-
+	fun all(builder: Slot.() -> Unit) {
+		fill(1, 1, type.slotsPerRow, rows, builder)
+	}
 	/**
 	 * Set the item of the next available slot not occupied by any item.
 	 * Any null item slot will be overridden as this method only checks for
@@ -199,7 +201,7 @@ class GUI(
 			return
 		}
 
-		slot(firstEmptySlot, builder)
+		slot(firstEmptySlot + 1, builder)
 	}
 
 	@EventHandler(priority = EventPriority.HIGHEST)