diff --git a/htdocs/reception/class/reception.class.php b/htdocs/reception/class/reception.class.php
index eab61660621..36372230301 100644
--- a/htdocs/reception/class/reception.class.php
+++ b/htdocs/reception/class/reception.class.php
@@ -124,7 +124,7 @@ class Reception extends CommonObject
 	 */
 	public $trueWeight;
 	/**
-	 * @var null|float|int
+	 * @var int
 	 */
 	public $weight_units;
 	/**
@@ -152,11 +152,11 @@ class Reception extends CommonObject
 	 */
 	public $depth_units;
 	/**
-	 * @var int|float|''|null	A denormalized value
+	 * @var int|float|string|null	A denormalized value
 	 */
 	public $trueSize;
 	/**
-	 * @var int|string
+	 * @var int
 	 */
 	public $size_units;
 	/**
@@ -350,8 +350,8 @@ class Reception extends CommonObject
 		$sql .= ", ".(is_null($this->trueDepth) ? "NULL" : ((float) $this->trueDepth));
 		$sql .= ", ".(is_null($this->trueWidth) ? "NULL" : ((float) $this->trueWidth));
 		$sql .= ", ".(is_null($this->trueHeight) ? "NULL" : ((float) $this->trueHeight));
-		$sql .= ", ".(is_null($this->weight_units) ? "NULL" : ((float) $this->weight_units));
-		$sql .= ", ".(is_null($this->size_units) ? "NULL" : ((float) $this->size_units));
+		$sql .= ", ".((int) $this->weight_units);
+		$sql .= ", ".((int) $this->size_units);
 		$sql .= ", ".(!empty($this->note_private) ? "'".$this->db->escape($this->note_private)."'" : "null");
 		$sql .= ", ".(!empty($this->note_public) ? "'".$this->db->escape($this->note_public)."'" : "null");
 		$sql .= ", ".(!empty($this->model_pdf) ? "'".$this->db->escape($this->model_pdf)."'" : "null");
@@ -1323,10 +1323,10 @@ class Reception extends CommonObject
 			$this->trueHeight = price2num($this->trueHeight);
 		}
 		if (isset($this->size_units)) {
-			$this->size_units = trim((string) $this->size_units);
+			$this->size_units = (int) $this->size_units;
 		}
 		if (isset($this->weight_units)) {
-			$this->weight_units = (float) trim((string) $this->weight_units);
+			$this->weight_units = (int) $this->weight_units;
 		}
 		if (isset($this->trueWeight)) {
 			$this->weight = price2num($this->trueWeight);
@@ -1360,12 +1360,12 @@ class Reception extends CommonObject
 		$sql .= " fk_shipping_method=".((isset($this->shipping_method_id) && $this->shipping_method_id > 0) ? $this->shipping_method_id : "null").",";
 		$sql .= " tracking_number=".(isset($this->tracking_number) ? "'".$this->db->escape($this->tracking_number)."'" : "null").",";
 		$sql .= " fk_statut=".(isset($this->statut) ? $this->statut : "null").",";
-		$sql .= " height=".(($this->trueHeight != '') ? $this->trueHeight : "null").",";
-		$sql .= " width=".(($this->trueWidth != '') ? $this->trueWidth : "null").",";
-		$sql .= " size_units=".(isset($this->size_units) ? $this->size_units : "null").",";
-		$sql .= " size=".(($this->trueDepth != '') ? $this->trueDepth : "null").",";
-		$sql .= " weight_units=".(isset($this->weight_units) ? $this->weight_units : "null").",";
-		$sql .= " weight=".(($this->trueWeight != '') ? $this->trueWeight : "null").",";
+		$sql .= " height=".(($this->trueHeight != '') ? (float) $this->trueHeight : "null").",";
+		$sql .= " width=".(($this->trueWidth != '') ? (float) $this->trueWidth : "null").",";
+		$sql .= " size_units=".((int) $this->size_units).",";
+		$sql .= " size=".(($this->trueDepth != '') ? (float) $this->trueDepth : "null").",";
+		$sql .= " weight_units=".((int) $this->weight_units).",";
+		$sql .= " weight=".(($this->trueWeight != '') ? (float) $this->trueWeight : "null").",";
 		$sql .= " note_private=".(isset($this->note_private) ? "'".$this->db->escape($this->note_private)."'" : "null").",";
 		$sql .= " note_public=".(isset($this->note_public) ? "'".$this->db->escape($this->note_public)."'" : "null").",";
 		$sql .= " model_pdf=".(isset($this->model_pdf) ? "'".$this->db->escape($this->model_pdf)."'" : "null").",";