diff --git a/addons/website_membership/__manifest__.py b/addons/website_membership/__manifest__.py
index 04fc58bde3b..02041b3ff61 100644
--- a/addons/website_membership/__manifest__.py
+++ b/addons/website_membership/__manifest__.py
@@ -12,6 +12,7 @@ Publish your members/association directory publicly.
     'depends': ['website_partner', 'website_google_map', 'association', 'website_sale'],
     'data': [
         'data/membership_data.xml',
+        'views/product_template_views.xml',
         'views/website_membership_templates.xml',
         'security/ir.model.access.csv',
         'security/website_membership.xml',
diff --git a/addons/website_membership/views/product_template_views.xml b/addons/website_membership/views/product_template_views.xml
new file mode 100644
index 00000000000..7878526464c
--- /dev/null
+++ b/addons/website_membership/views/product_template_views.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="product_template_view_form" model="ir.ui.view">
+        <field name="name">product.template.view.form.inherit.website_membership</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="membership.membership_products_form"/>
+        <field name="arch" type="xml">
+            <field name="active" position="after">
+                <field name="website_sequence" groups="base.group_no_one"/>
+            </field>
+        </field>
+    </record>
+
+    <record id="product_template_view_tree" model="ir.ui.view">
+        <field name="name">product.template.view.tree.inherit.website_membership</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="membership.membership_products_tree"/>
+        <field name="arch" type="xml">
+            <field name="name" position="before">
+                <field name="website_sequence" widget="handle"/>
+            </field>
+        </field>
+    </record>
+</odoo>
diff --git a/addons/website_sale/controllers/main.py b/addons/website_sale/controllers/main.py
index e2e16877fc7..dd088419362 100644
--- a/addons/website_sale/controllers/main.py
+++ b/addons/website_sale/controllers/main.py
@@ -157,7 +157,7 @@ class WebsiteSale(http.Controller):
     def _get_search_order(self, post):
         # OrderBy will be parsed in orm and so no direct sql injection
         # id is added to be sure that order is a unique sort key
-        order = post.get('order') or 'website_sequence desc'
+        order = post.get('order') or 'website_sequence ASC'
         return 'is_published desc, %s, id desc' % order
 
     def _get_search_domain(self, search, category, attrib_values, search_in_description=True):
diff --git a/addons/website_sale/data/demo.xml b/addons/website_sale/data/demo.xml
index 3e26dbed843..216c6d38c33 100644
--- a/addons/website_sale/data/demo.xml
+++ b/addons/website_sale/data/demo.xml
@@ -58,15 +58,13 @@
             <field name="website_published" eval="True"/>
             <field name="website_size_x">2</field>
             <field name="website_size_y">2</field>
-            <field name="website_sequence">1000</field>
+            <field name="website_sequence">9950</field>
             <field name="website_style_ids" eval="[(6,0,[ref('website_sale.image_full')])]"/>
         </record>
 
         <record id="product.product_product_6" model="product.product">
             <field name="website_published" eval="True"/>
-            <field name="website_sequence">4</field>
-            <field name="website_style_ids" eval="[(6,0,[ref('website_sale.image_full')])]"/>
-            <field name="website_sequence">4</field>
+            <field name="website_sequence">10010</field>
             <field name="website_style_ids" eval="[(6,0,[ref('website_sale.image_full')])]"/>
         </record>
 
@@ -639,7 +637,7 @@
             <field name="name">Warranty</field>
             <field name="default_code">SERV_125889</field>
             <field name="list_price">20.0</field>
-            <field name="website_sequence">100</field>
+            <field name="website_sequence">9980</field>
             <field name="website_published" eval="True"/>
             <field name="type">service</field>
             <field name="uom_id" ref="uom.product_uom_unit"/>
diff --git a/addons/website_sale/models/product.py b/addons/website_sale/models/product.py
index b91657f746e..5d8bb08465c 100644
--- a/addons/website_sale/models/product.py
+++ b/addons/website_sale/models/product.py
@@ -3,7 +3,6 @@
 
 from odoo import api, fields, models, tools, _
 from odoo.exceptions import ValidationError, UserError
-from odoo.addons import decimal_precision as dp
 from odoo.addons.website.models import ir_http
 from odoo.tools.translate import html_translate
 from odoo.osv import expression
@@ -204,7 +203,7 @@ class ProductTemplate(models.Model):
                                                '(upsell strategy).Those product show up on the product page.')
     accessory_product_ids = fields.Many2many('product.product', 'product_accessory_rel', 'src_id', 'dest_id',
                                              string='Accessory Products', help='Accessories show up when the customer'
-                                            'reviews the cart before payment (cross-sell strategy).')
+                                             'reviews the cart before payment (cross-sell strategy).')
     website_size_x = fields.Integer('Size X', default=1)
     website_size_y = fields.Integer('Size Y', default=1)
     website_style_ids = fields.Many2many('product.style', string='Styles')
@@ -345,27 +344,41 @@ class ProductTemplate(models.Model):
         return website and website.company_id or res
 
     def _default_website_sequence(self):
-        self._cr.execute("SELECT MIN(website_sequence) FROM %s" % self._table)
-        min_sequence = self._cr.fetchone()[0]
-        return min_sequence and min_sequence - 1 or 10
+        ''' We want new product to be the last (highest seq).
+        Every product should ideally have an unique sequence.
+        Default sequence (10000) should only be used for DB first product.
+        As we don't resequence the whole tree (as `sequence` does), this field
+        might have negative value.
+        '''
+        self._cr.execute("SELECT MAX(website_sequence) FROM %s" % self._table)
+        max_sequence = self._cr.fetchone()[0]
+        if max_sequence is None:
+            return 10000
+        return max_sequence + 5
 
     def set_sequence_top(self):
-        self.website_sequence = self.sudo().search([], order='website_sequence desc', limit=1).website_sequence + 1
+        min_sequence = self.sudo().search([], order='website_sequence ASC', limit=1)
+        self.website_sequence = min_sequence.website_sequence - 5
 
     def set_sequence_bottom(self):
-        self.website_sequence = self.sudo().search([], order='website_sequence', limit=1).website_sequence - 1
+        max_sequence = self.sudo().search([], order='website_sequence DESC', limit=1)
+        self.website_sequence = max_sequence.website_sequence + 5
 
     def set_sequence_up(self):
-        previous_product_tmpl = self.sudo().search(
-            [('website_sequence', '>', self.website_sequence), ('website_published', '=', self.website_published)],
-            order='website_sequence', limit=1)
+        previous_product_tmpl = self.sudo().search([
+            ('website_sequence', '<', self.website_sequence),
+            ('website_published', '=', self.website_published),
+        ], order='website_sequence DESC', limit=1)
         if previous_product_tmpl:
             previous_product_tmpl.website_sequence, self.website_sequence = self.website_sequence, previous_product_tmpl.website_sequence
         else:
             self.set_sequence_top()
 
     def set_sequence_down(self):
-        next_prodcut_tmpl = self.search([('website_sequence', '<', self.website_sequence), ('website_published', '=', self.website_published)], order='website_sequence desc', limit=1)
+        next_prodcut_tmpl = self.search([
+            ('website_sequence', '>', self.website_sequence),
+            ('website_published', '=', self.website_published),
+        ], order='website_sequence ASC', limit=1)
         if next_prodcut_tmpl:
             next_prodcut_tmpl.website_sequence, self.website_sequence = self.website_sequence, next_prodcut_tmpl.website_sequence
         else:
diff --git a/addons/website_sale/tests/__init__.py b/addons/website_sale/tests/__init__.py
index 33bc88ece4a..40b4a8266e4 100644
--- a/addons/website_sale/tests/__init__.py
+++ b/addons/website_sale/tests/__init__.py
@@ -5,3 +5,4 @@ from . import test_website_sale_mail
 from . import test_website_sale_pricelist
 from . import test_website_sale_product_attribute_value_config
 from . import test_website_sale_image
+from . import test_website_sequence
diff --git a/addons/website_sale/tests/test_website_sequence.py b/addons/website_sale/tests/test_website_sequence.py
new file mode 100644
index 00000000000..85cb3cc409f
--- /dev/null
+++ b/addons/website_sale/tests/test_website_sequence.py
@@ -0,0 +1,70 @@
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+import odoo.tests
+
+
+@odoo.tests.common.tagged('post_install', '-at_install')
+class TestWebsiteSequence(odoo.tests.TransactionCase):
+
+    def setUp(self):
+        super(TestWebsiteSequence, self).setUp()
+
+        ProductTemplate = self.env['product.template']
+        product_templates = ProductTemplate.search([])
+        # if stock is installed we can't archive since there is orderpoints
+        if hasattr(self.env['product.product'], 'orderpoint_ids'):
+            product_templates.mapped('product_variant_ids.orderpoint_ids').write({'active': False})
+        product_templates.write({'active': False})
+        self.p1, self.p2, self.p3, self.p4 = ProductTemplate.create([{
+            'name': 'First Product',
+            'website_sequence': 100,
+        }, {
+            'name': 'Second Product',
+            'website_sequence': 180,
+        }, {
+            'name': 'Third Product',
+            'website_sequence': 225,
+        }, {
+            'name': 'Last Product',
+            'website_sequence': 250,
+        }])
+
+        self._check_correct_order(self.p1 + self.p2 + self.p3 + self.p4)
+
+    def _search_website_sequence_order(self, order='ASC'):
+        '''Helper method to limit the search only to the setUp products'''
+        return self.env['product.template'].search([
+        ], order='website_sequence %s' % (order))
+
+    def _check_correct_order(self, products):
+        product_ids = self._search_website_sequence_order().ids
+        self.assertEqual(product_ids, products.ids, "Wrong sequence order")
+
+    def test_01_website_sequence(self):
+        # 100:1, 180:2, 225:3, 250:4
+        self.p2.set_sequence_down()
+        # 100:1, 180:3, 225:2, 250:4
+        self._check_correct_order(self.p1 + self.p3 + self.p2 + self.p4)
+        self.p4.set_sequence_up()
+        # 100:1, 180:3, 225:4, 250:2
+        self._check_correct_order(self.p1 + self.p3 + self.p4 + self.p2)
+        self.p2.set_sequence_top()
+        # 95:2, 100:1, 180:3, 225:4
+        self._check_correct_order(self.p2 + self.p1 + self.p3 + self.p4)
+        self.p1.set_sequence_bottom()
+        # 95:2, 180:3, 225:4, 230:1
+        self._check_correct_order(self.p2 + self.p3 + self.p4 + self.p1)
+
+        current_sequences = self._search_website_sequence_order().mapped('website_sequence')
+        self.assertEqual(current_sequences, [95, 180, 225, 230], "Wrong sequence order (2)")
+
+        self.p2.website_sequence = 1
+        self.p3.set_sequence_top()
+        # -4:3, 1:2, 225:4, 230:1
+        self.assertEqual(self.p3.website_sequence, -4, "`website_sequence` should go below 0")
+
+        new_product = self.env['product.template'].create({
+            'name': 'Last Newly Created Product',
+        })
+
+        self.assertEqual(self._search_website_sequence_order()[-1], new_product, "new product should be last")
diff --git a/addons/website_sale/views/product_views.xml b/addons/website_sale/views/product_views.xml
index 4cac8d39f18..ec49eba381b 100644
--- a/addons/website_sale/views/product_views.xml
+++ b/addons/website_sale/views/product_views.xml
@@ -12,22 +12,6 @@
         </field>
     </record>
 
-    <record id="product_template_action_website" model="ir.actions.act_window">
-        <field name="name">Products</field>
-        <field name="res_model">product.template</field>
-        <field name="view_type">form</field>
-        <field name="view_mode">kanban,tree,form,activity</field>
-        <field name="search_view_id" ref="product_template_search_view_website"/>
-        <field name="context">{'search_default_published': 1, 'default_website_published': True}</field>
-        <field name="help" type="html">
-            <p class="o_view_nocontent_smiling_face">
-                Create a new product
-            </p><p>
-                A product can be either a physical product or a service that you sell to your customers.
-            </p>
-        </field>
-    </record>
-
     <record model="ir.ui.view" id="product_pricelist_view">
         <field name="name">product.pricelist.website.form</field>
         <field name="model">product.pricelist</field>
@@ -50,8 +34,9 @@
         </field>
     </record>
 
-    <record model="ir.ui.view" id="product_template_website_tree_view">
-        <field name="name">product.template.website.tree</field>
+    <!-- We want website_id to be shown outside of website module like other models -->
+    <record model="ir.ui.view" id="product_template_view_tree">
+        <field name="name">product.template.view.tree.inherit.website_sale</field>
         <field name="model">product.template</field>
         <field name="inherit_id" ref="product.product_template_tree_view"/>
         <field name="arch" type="xml">
@@ -61,6 +46,36 @@
         </field>
     </record>
 
+    <!-- only website module template view should use the website_sequence -->
+    <record model="ir.ui.view" id="product_template_view_tree_website_sale">
+        <field name="name">product.template.view.tree.website_sale</field>
+        <field name="mode">primary</field>
+        <field name="model">product.template</field>
+        <field name="inherit_id" ref="website_sale.product_template_view_tree"/>
+        <field name="arch" type="xml">
+            <field name="sequence" position="replace">
+                <field name="website_sequence" widget="handle"/>
+            </field>
+        </field>
+    </record>
+
+    <record id="product_template_action_website" model="ir.actions.act_window">
+        <field name="name">Products</field>
+        <field name="res_model">product.template</field>
+        <field name="view_type">form</field>
+        <field name="view_mode">kanban,tree,form,activity</field>
+        <field name="view_id" ref="product_template_view_tree_website_sale"/>
+        <field name="search_view_id" ref="product_template_search_view_website"/>
+        <field name="context">{'search_default_published': 1, 'default_website_published': True}</field>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                Create a new product
+            </p><p>
+                A product can be either a physical product or a service that you sell to your customers.
+            </p>
+        </field>
+    </record>
+
     <record model="ir.ui.view" id="product_template_form_view_invoice_policy">
         <field name="name">product.template.invoice.policy</field>
         <field name="model">product.template</field>
@@ -96,6 +111,7 @@
                         <group string="Shop">
                             <field name="website_url" invisible="1"/>
                             <field name="website_id" options="{'no_create': True}" groups="website.group_multi_website"/>
+                            <field name="website_sequence" groups="base.group_no_one"/>
                             <field name="public_categ_ids" widget="many2many_tags" string="Categories"/>
                             <field name="alternative_product_ids" widget="many2many_tags"/>
                             <field name="accessory_product_ids" widget="many2many_tags"/>
diff --git a/addons/website_sale_product_configurator/data/demo.xml b/addons/website_sale_product_configurator/data/demo.xml
index a091b26688f..db513297a7b 100644
--- a/addons/website_sale_product_configurator/data/demo.xml
+++ b/addons/website_sale_product_configurator/data/demo.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <odoo noupdate="1">
     <record id="sale_product_configurator.product_product_1_product_template" model="product.template">
-            <field name="website_sequence">100</field>
+            <field name="website_sequence">9980</field>
             <field name="website_published" eval="True"/>
         </record>
     <record id="product.product_product_4_product_template" model="product.template">