app-controllers-backend-shippings.php.diff

diff --git a/app/controllers/backend/shippings.php b/app/controllers/backend/shippings.php
index d9a7503..ddd4c73 100644
--- a/app/controllers/backend/shippings.php
+++ b/app/controllers/backend/shippings.php
@@ -74,7 +74,7 @@ if ($_SERVER['REQUEST_METHOD'] == 'POST') {
         if (!empty($shipping_data['service_id']) && !empty($_REQUEST['shipping_id'])) {
             // Set package information (weight is only needed)
             $weight = floatval($shipping_data['test_weight']);
-            $weight = !empty($weight) ? sprintf("%.2f", $weight) : '0.01';
+            $weight = !empty($weight) ? sprintf("%.3f", $weight) : '0.001';
 
             $package_info = array(
                 'W' => $weight,

app-functions-fn.cart.php.diff

diff --git a/app/functions/fn.cart.php b/app/functions/fn.cart.php
index 2704390..08e9c28 100644
--- a/app/functions/fn.cart.php
+++ b/app/functions/fn.cart.php
@@ -3399,7 +3399,7 @@ function fn_get_products_weight($cart, $cart_products, $type = 'S')
         }
     }
 
-    return !empty($weight) ? sprintf("%.2f", $weight) : '0.01';
+    return !empty($weight) ? sprintf("%.3f", $weight) : '0.001';
 }
 
 /**

app-Tygh-Shippings-Shippings.php.diff

diff --git a/app/Tygh/Shippings/Shippings.php b/app/Tygh/Shippings/Shippings.php
index 71fb87e..61dea7c 100644
--- a/app/Tygh/Shippings/Shippings.php
+++ b/app/Tygh/Shippings/Shippings.php
@@ -181,7 +181,7 @@ class Shippings
             }
         }
 
-        $package_info['W'] = !empty($package_info['W']) ? sprintf("%.2f", $package_info['W']) : '0.01';
+        $package_info['W'] = !empty($package_info['W']) ? sprintf("%.3f", $package_info['W']) : '0.001';
 
         $package_groups = array(
             'personal' => array(),
@@ -418,8 +418,8 @@ class Shippings
 
         $condition .= db_quote('?:shippings.status = ?s', 'A');
         $condition .= db_quote(' AND ?:shippings.shipping_id IN (?n)', $shippings);
-        $condition .= db_quote(' AND (?:shippings.min_weight <= ?d', $package_weight);
-        $condition .= db_quote(' AND (?:shippings.max_weight >= ?d OR ?:shippings.max_weight = 0.00))', $package_weight);
+        $condition .= db_quote(' AND (?:shippings.min_weight <= ?i', $package_weight);
+        $condition .= db_quote(' AND (?:shippings.max_weight >= ?i OR ?:shippings.max_weight = 0.00))', $package_weight);
         $condition .= db_quote(' AND ?:shipping_descriptions.lang_code = ?s', $lang);
 
         if ($area == 'C') {

design-backend-templates-views-shippings-components-rates.tpl.diff

diff --git a/design/backend/templates/views/shippings/components/rates.tpl b/design/backend/templates/views/shippings/components/rates.tpl
index 0baf7e8..ae25360 100644
--- a/design/backend/templates/views/shippings/components/rates.tpl
+++ b/design/backend/templates/views/shippings/components/rates.tpl
@@ -140,7 +140,7 @@
                             {if $smarty.foreach.rdf.first}
                                 <input type="hidden" name="shipping_data[rates][{$destination_id}][rate_value][W][0][amount]" value="0" />&nbsp;&nbsp;0 {$settings.General.weight_symbol}
                             {else}
-                                <input type="text" name="shipping_data[rates][{$destination_id}][rate_value][W][{$k}][amount]" data-p-sign="s" data-a-sign=" {$settings.General.weight_symbol nofilter}" size="5" value="{$k}" class="cm-numeric input-small input-hidden" />
+                                <input type="text" name="shipping_data[rates][{$destination_id}][rate_value][W][{$k}][amount]" data-p-sign="s" data-v-min="0.000" data-a-sign=" {$settings.General.weight_symbol nofilter}" size="5" value="{$k}" class="cm-numeric input-small input-hidden" />
                             {/if}
 
                         </td>
@@ -182,7 +182,7 @@
                         <td>
                             <input type="checkbox" disabled="disabled" value="Y" class="checkbox cm-item-weight cm-item" /></td>
                         <td>
-                            {__("more_than")}&nbsp; <input type="text" name="shipping_data[add_rates][{$destination_id}][rate_value][W][0][amount]" data-p-sign="s" data-a-sign=" {$settings.General.weight_symbol nofilter}" size="5" value="" class="cm-numeric input-small input-hidden" /></td>
+                            {__("more_than")}&nbsp; <input type="text" name="shipping_data[add_rates][{$destination_id}][rate_value][W][0][amount]" data-p-sign="s" data-v-min="0.000" data-a-sign=" {$settings.General.weight_symbol nofilter}" size="5" value="" class="cm-numeric input-small input-hidden" /></td>
                         <td>
                             <input type="text" name="shipping_data[add_rates][{$destination_id}][rate_value][W][0][value]" size="5" value="" class="input-small input-hidden" /></td>
                         <td>