diff --git a/plugins/woocommerce-blocks/.travis.yml b/plugins/woocommerce-blocks/.travis.yml
index 8ddcb192b9a..18d8fc31695 100644
--- a/plugins/woocommerce-blocks/.travis.yml
+++ b/plugins/woocommerce-blocks/.travis.yml
@@ -21,6 +21,8 @@ jobs:
       env: WP_VERSION=latest WP_MULTISITE=0 WP_CORE_DIR=/tmp/wordpress
       php: 7.1
       script:
+        - composer install
+        - composer run-script phpcs .
         - npm install
         - npm run lint
         - npm run build
diff --git a/plugins/woocommerce-blocks/assets/js/components/product-orderby-control/index.js b/plugins/woocommerce-blocks/assets/js/components/product-orderby-control/index.js
new file mode 100644
index 00000000000..5351d27aaad
--- /dev/null
+++ b/plugins/woocommerce-blocks/assets/js/components/product-orderby-control/index.js
@@ -0,0 +1,62 @@
+/**
+ * External dependencies
+ */
+import { __ } from '@wordpress/i18n';
+import { SelectControl } from '@wordpress/components';
+import PropTypes from 'prop-types';
+
+/**
+ * A pre-configured SelectControl for product orderby settings.
+ */
+const ProductOrderbyControl = ( { value, setAttributes } ) => {
+	return (
+		<SelectControl
+			label={ __( 'Order products by', 'woo-gutenberg-products-block' ) }
+			value={ value }
+			options={ [
+				{
+					label: __( 'Newness - newest first', 'woo-gutenberg-products-block' ),
+					value: 'date',
+				},
+				{
+					label: __( 'Price - low to high', 'woo-gutenberg-products-block' ),
+					value: 'price_asc',
+				},
+				{
+					label: __( 'Price - high to low', 'woo-gutenberg-products-block' ),
+					value: 'price_desc',
+				},
+				{
+					label: __( 'Rating - highest first', 'woo-gutenberg-products-block' ),
+					value: 'rating',
+				},
+				{
+					label: __( 'Sales - most first', 'woo-gutenberg-products-block' ),
+					value: 'popularity',
+				},
+				{
+					label: __( 'Title - alphabetical', 'woo-gutenberg-products-block' ),
+					value: 'title',
+				},
+				{
+					label: __( 'Menu Order', 'woo-gutenberg-products-block' ),
+					value: 'menu_order',
+				},
+			] }
+			onChange={ ( orderby ) => setAttributes( { orderby } ) }
+		/>
+	);
+};
+
+ProductOrderbyControl.propTypes = {
+	/**
+	 * Callback to update the order setting.
+	 */
+	setAttributes: PropTypes.func.isRequired,
+	/**
+	 * The selected order setting.
+	 */
+	value: PropTypes.string.isRequired,
+};
+
+export default ProductOrderbyControl;
diff --git a/plugins/woocommerce-blocks/assets/js/index.js b/plugins/woocommerce-blocks/assets/js/index.js
index 79baf332ada..a4a9ea4a076 100644
--- a/plugins/woocommerce-blocks/assets/js/index.js
+++ b/plugins/woocommerce-blocks/assets/js/index.js
@@ -14,6 +14,7 @@ import getShortcode from './utils/get-shortcode';
 import ProductBestSellersBlock from './product-best-sellers';
 import ProductByCategoryBlock from './product-category-block';
 import ProductTopRatedBlock from './product-top-rated';
+import ProductOnSaleBlock from './product-on-sale';
 import sharedAttributes from './utils/shared-attributes';
 
 const validAlignments = [ 'wide', 'full' ];
@@ -157,3 +158,46 @@ registerBlockType( 'woocommerce/product-top-rated', {
 		);
 	},
 } );
+
+registerBlockType( 'woocommerce/product-on-sale', {
+	title: __( 'On Sale Products', 'woo-gutenberg-products-block' ),
+	icon: <Gridicon icon="tag" />,
+	category: 'widgets',
+	keywords: [ __( 'WooCommerce', 'woo-gutenberg-products-block' ) ],
+	description: __(
+		'Display a grid of on sale products.',
+		'woo-gutenberg-products-block'
+	),
+	attributes: {
+		...sharedAttributes,
+		/**
+		 * How to order the products: 'date', 'popularity', 'price_asc', 'price_desc' 'rating', 'title'.
+		 */
+		orderby: {
+			type: 'string',
+			default: 'date',
+		},
+	},
+	getEditWrapperProps,
+ 	/**
+	 * Renders and manages the block.
+	 */
+	edit( props ) {
+		return <ProductOnSaleBlock { ...props } />;
+	},
+ 	/**
+	 * Save the block content in the post content. Block content is saved as a products shortcode.
+	 *
+	 * @return string
+	 */
+	save( props ) {
+		const {
+			align,
+		} = props.attributes; /* eslint-disable-line react/prop-types */
+		return (
+			<RawHTML className={ align ? `align${ align }` : '' }>
+				{ getShortcode( props, 'woocommerce/product-on-sale' ) }
+			</RawHTML>
+		);
+	},
+} );
diff --git a/plugins/woocommerce-blocks/assets/js/product-best-sellers.js b/plugins/woocommerce-blocks/assets/js/product-best-sellers.js
index 07b01e87223..c06da70f422 100644
--- a/plugins/woocommerce-blocks/assets/js/product-best-sellers.js
+++ b/plugins/woocommerce-blocks/assets/js/product-best-sellers.js
@@ -39,9 +39,7 @@ class ProductBestSellersBlock extends Component {
 	}
 
 	componentDidMount() {
-		if ( this.props.attributes.categories ) {
-			this.getProducts();
-		}
+		this.getProducts();
 	}
 
 	componentDidUpdate( prevProps ) {
@@ -55,7 +53,10 @@ class ProductBestSellersBlock extends Component {
 
 	getProducts() {
 		apiFetch( {
-			path: addQueryArgs( '/wc-pb/v3/products', getQuery( this.props.attributes, this.props.name ) ),
+			path: addQueryArgs(
+				'/wc-pb/v3/products',
+				getQuery( this.props.attributes, this.props.name )
+			),
 		} )
 			.then( ( products ) => {
 				this.setState( { products, loaded: true } );
@@ -113,7 +114,10 @@ class ProductBestSellersBlock extends Component {
 		const { setAttributes } = this.props;
 		const { columns, align } = this.props.attributes;
 		const { loaded, products } = this.state;
-		const classes = [ 'wc-block-products-grid', 'wc-block-best-selling-products' ];
+		const classes = [
+			'wc-block-products-grid',
+			'wc-block-best-selling-products',
+		];
 		if ( columns ) {
 			classes.push( `cols-${ columns }` );
 		}
diff --git a/plugins/woocommerce-blocks/assets/js/product-category-block.js b/plugins/woocommerce-blocks/assets/js/product-category-block.js
index b16bbae5f93..80192a6c7bb 100644
--- a/plugins/woocommerce-blocks/assets/js/product-category-block.js
+++ b/plugins/woocommerce-blocks/assets/js/product-category-block.js
@@ -15,7 +15,6 @@ import {
 	PanelBody,
 	Placeholder,
 	RangeControl,
-	SelectControl,
 	Spinner,
 	Toolbar,
 	withSpokenMessages,
@@ -27,6 +26,7 @@ import PropTypes from 'prop-types';
  */
 import getQuery from './utils/get-query';
 import ProductCategoryControl from './components/product-category-control';
+import ProductOrderbyControl from './components/product-orderby-control';
 import ProductPreview from './components/product-preview';
 
 /**
@@ -112,56 +112,7 @@ class ProductByCategoryBlock extends Component {
 					title={ __( 'Order By', 'woo-gutenberg-products-block' ) }
 					initialOpen={ false }
 				>
-					<SelectControl
-						label={ __( 'Order products by', 'woo-gutenberg-products-block' ) }
-						value={ orderby }
-						options={ [
-							{
-								label: __(
-									'Newness - newest first',
-									'woo-gutenberg-products-block'
-								),
-								value: 'date',
-							},
-							{
-								label: __(
-									'Price - low to high',
-									'woo-gutenberg-products-block'
-								),
-								value: 'price_asc',
-							},
-							{
-								label: __(
-									'Price - high to low',
-									'woo-gutenberg-products-block'
-								),
-								value: 'price_desc',
-							},
-							{
-								label: __(
-									'Rating - highest first',
-									'woo-gutenberg-products-block'
-								),
-								value: 'rating',
-							},
-							{
-								label: __( 'Sales - most first', 'woo-gutenberg-products-block' ),
-								value: 'popularity',
-							},
-							{
-								label: __(
-									'Title - alphabetical',
-									'woo-gutenberg-products-block'
-								),
-								value: 'title',
-							},
-							{
-								label: __( 'Menu Order', 'woo-gutenberg-products-block' ),
-								value: 'menu_order',
-							},
-						] }
-						onChange={ ( value ) => setAttributes( { orderby: value } ) }
-					/>
+					<ProductOrderbyControl setAttributes={ setAttributes } value={ orderby } />
 				</PanelBody>
 			</InspectorControls>
 		);
diff --git a/plugins/woocommerce-blocks/assets/js/product-on-sale.js b/plugins/woocommerce-blocks/assets/js/product-on-sale.js
new file mode 100644
index 00000000000..0f627622f79
--- /dev/null
+++ b/plugins/woocommerce-blocks/assets/js/product-on-sale.js
@@ -0,0 +1,193 @@
+/**
+ * External dependencies
+ */
+import { __ } from '@wordpress/i18n';
+import { addQueryArgs } from '@wordpress/url';
+import apiFetch from '@wordpress/api-fetch';
+import {
+	BlockAlignmentToolbar,
+	BlockControls,
+	InspectorControls,
+} from '@wordpress/editor';
+import { Component, Fragment } from '@wordpress/element';
+import Gridicon from 'gridicons';
+import {
+	PanelBody,
+	Placeholder,
+	RangeControl,
+	Spinner,
+} from '@wordpress/components';
+import PropTypes from 'prop-types';
+
+/**
+ * Internal dependencies
+ */
+import getQuery from './utils/get-query';
+import ProductCategoryControl from './components/product-category-control';
+import ProductOrderbyControl from './components/product-orderby-control';
+import ProductPreview from './components/product-preview';
+
+/**
+ * Component to handle edit mode of "On Sale Products".
+ */
+class ProductOnSaleBlock extends Component {
+	constructor() {
+		super( ...arguments );
+		this.state = {
+			products: [],
+			loaded: false,
+		};
+	}
+
+	componentDidMount() {
+		this.getProducts();
+	}
+
+	componentDidUpdate( prevProps ) {
+		const hasChange = [ 'rows', 'columns', 'orderby', 'categories' ].reduce(
+			( acc, key ) => {
+				return acc || prevProps.attributes[ key ] !== this.props.attributes[ key ];
+			},
+			false
+		);
+		if ( hasChange ) {
+			this.getProducts();
+		}
+	}
+
+	getProducts() {
+		apiFetch( {
+			path: addQueryArgs(
+				'/wc-pb/v3/products',
+				getQuery( this.props.attributes, this.props.name )
+			),
+		} )
+			.then( ( products ) => {
+				this.setState( { products, loaded: true } );
+			} )
+			.catch( () => {
+				this.setState( { products: [], loaded: true } );
+			} );
+	}
+
+	getInspectorControls() {
+		const { attributes, setAttributes } = this.props;
+		const { columns, rows, orderby } = attributes;
+
+		return (
+			<InspectorControls key="inspector">
+				<PanelBody
+					title={ __( 'Layout', 'woo-gutenberg-products-block' ) }
+					initialOpen
+				>
+					<RangeControl
+						label={ __( 'Columns', 'woo-gutenberg-products-block' ) }
+						value={ columns }
+						onChange={ ( value ) => setAttributes( { columns: value } ) }
+						min={ wc_product_block_data.min_columns }
+						max={ wc_product_block_data.max_columns }
+					/>
+					<RangeControl
+						label={ __( 'Rows', 'woo-gutenberg-products-block' ) }
+						value={ rows }
+						onChange={ ( value ) => setAttributes( { rows: value } ) }
+						min={ wc_product_block_data.min_rows }
+						max={ wc_product_block_data.max_rows }
+					/>
+				</PanelBody>
+				<PanelBody
+					title={ __( 'Order By', 'woo-gutenberg-products-block' ) }
+					initialOpen={ false }
+				>
+					<ProductOrderbyControl setAttributes={ setAttributes } value={ orderby } />
+				</PanelBody>
+				<PanelBody
+					title={ __(
+						'Filter by Product Category',
+						'woo-gutenberg-products-block'
+					) }
+					initialOpen={ false }
+				>
+					<ProductCategoryControl
+						selected={ attributes.categories }
+						onChange={ ( value = [] ) => {
+							const ids = value.map( ( { id } ) => id );
+							setAttributes( { categories: ids } );
+						} }
+					/>
+				</PanelBody>
+			</InspectorControls>
+		);
+	}
+
+	render() {
+		const { setAttributes } = this.props;
+		const { columns, align } = this.props.attributes;
+		const { loaded, products } = this.state;
+		const classes = [
+			'wc-block-products-grid',
+			'wc-block-on-sale-products',
+		];
+		if ( columns ) {
+			classes.push( `cols-${ columns }` );
+		}
+		if ( products && ! products.length ) {
+			if ( ! loaded ) {
+				classes.push( 'is-loading' );
+			} else {
+				classes.push( 'is-not-found' );
+			}
+		}
+
+		return (
+			<Fragment>
+				<BlockControls>
+					<BlockAlignmentToolbar
+						controls={ [ 'wide', 'full' ] }
+						value={ align }
+						onChange={ ( nextAlign ) => setAttributes( { align: nextAlign } ) }
+					/>
+				</BlockControls>
+				{ this.getInspectorControls() }
+				<div className={ classes.join( ' ' ) }>
+					{ products.length ? (
+						products.map( ( product ) => (
+							<ProductPreview product={ product } key={ product.id } />
+						) )
+					) : (
+						<Placeholder
+							icon={ <Gridicon icon="tag" /> }
+							label={ __(
+								'On Sale Products',
+								'woo-gutenberg-products-block'
+							) }
+						>
+							{ ! loaded ? (
+								<Spinner />
+							) : (
+								__( 'No products found.', 'woo-gutenberg-products-block' )
+							) }
+						</Placeholder>
+					) }
+				</div>
+			</Fragment>
+		);
+	}
+}
+
+ProductOnSaleBlock.propTypes = {
+	/**
+	 * The attributes for this block
+	 */
+	attributes: PropTypes.object.isRequired,
+	/**
+	 * The register block name.
+	 */
+	name: PropTypes.string.isRequired,
+	/**
+	 * A callback to update attributes
+	 */
+	setAttributes: PropTypes.func.isRequired,
+};
+
+export default ProductOnSaleBlock;
diff --git a/plugins/woocommerce-blocks/assets/js/utils/get-query.js b/plugins/woocommerce-blocks/assets/js/utils/get-query.js
index 21aa7195126..6997f5f21c3 100644
--- a/plugins/woocommerce-blocks/assets/js/utils/get-query.js
+++ b/plugins/woocommerce-blocks/assets/js/utils/get-query.js
@@ -33,8 +33,13 @@ export default function getQuery( attributes, name ) {
 		case 'woocommerce/product-best-sellers':
 			query.orderby = 'popularity';
 			break;
+<<<<<<< HEAD
 		case 'woocommerce/product-top-rated':
 			query.orderby = 'rating';
+=======
+		case 'woocommerce/product-on-sale':
+			query.on_sale = 1;
+>>>>>>> 75e957b33c668e2ef98500fab68ecfe8ca705ac4
 			break;
 	}
 
diff --git a/plugins/woocommerce-blocks/assets/js/utils/get-shortcode.js b/plugins/woocommerce-blocks/assets/js/utils/get-shortcode.js
index 34417dac22e..948c33f4913 100644
--- a/plugins/woocommerce-blocks/assets/js/utils/get-shortcode.js
+++ b/plugins/woocommerce-blocks/assets/js/utils/get-shortcode.js
@@ -32,6 +32,9 @@ export default function getShortcode( { attributes }, name ) {
 		case 'woocommerce/product-top-rated':
 			shortcodeAtts.set( 'orderby', 'rating' );
 			break;
+		case 'woocommerce/product-on-sale':
+			shortcodeAtts.set( 'on_sale', '1' );
+			break;
 	}
 
 	// Build the shortcode string out of the set shortcode attributes.
diff --git a/plugins/woocommerce-blocks/composer.json b/plugins/woocommerce-blocks/composer.json
index 96bb727313e..6efa618d6c6 100644
--- a/plugins/woocommerce-blocks/composer.json
+++ b/plugins/woocommerce-blocks/composer.json
@@ -14,7 +14,7 @@
   },
   "scripts": {
     "phpcs": [
-      "phpcs -s -p"
+      "phpcs --extensions=php -s -p"
     ],
     "phpcbf": [
       "phpcbf -p"
diff --git a/plugins/woocommerce-blocks/package-lock.json b/plugins/woocommerce-blocks/package-lock.json
index f044f1db761..4f2930b2c96 100644
--- a/plugins/woocommerce-blocks/package-lock.json
+++ b/plugins/woocommerce-blocks/package-lock.json
@@ -4517,9 +4517,9 @@
       }
     },
     "css-loader": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/css-loader/-/css-loader-2.0.0.tgz",
-      "integrity": "sha512-3Fq8HJYs7ruBiDpJA/w2ZROtivA769ePuH3/vgPdOB+FQiotErJ7VJYRZq86SPRVFaccn1wEktUnaaUyf+Uslw==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/css-loader/-/css-loader-2.0.1.tgz",
+      "integrity": "sha512-XIVwoIOzSFRVsafOKa060GJ/A70c0IP/C1oVPHEX4eHIFF39z0Jl7j8Kua1SUTiqWDupUnbY3/yQx9r7EUB35w==",
       "dev": true,
       "requires": {
         "icss-utils": "^4.0.0",
diff --git a/plugins/woocommerce-blocks/package.json b/plugins/woocommerce-blocks/package.json
index bed0c7b2963..d63ff7e0858 100644
--- a/plugins/woocommerce-blocks/package.json
+++ b/plugins/woocommerce-blocks/package.json
@@ -42,7 +42,7 @@
     "clean-webpack-plugin": "1.0.0",
     "core-js": "2.6.0",
     "cross-env": "5.2.0",
-    "css-loader": "2.0.0",
+    "css-loader": "2.0.1",
     "eslint": "5.10.0",
     "eslint-config-wordpress": "2.0.0",
     "eslint-plugin-jest": "22.1.2",
diff --git a/plugins/woocommerce-blocks/woocommerce-gutenberg-products-block.php b/plugins/woocommerce-blocks/woocommerce-gutenberg-products-block.php
index 4679923a538..e715a6e681f 100644
--- a/plugins/woocommerce-blocks/woocommerce-gutenberg-products-block.php
+++ b/plugins/woocommerce-blocks/woocommerce-gutenberg-products-block.php
@@ -43,7 +43,13 @@ add_action( 'woocommerce_loaded', 'wgpb_initialize' );
  */
 function wgpb_plugins_notice() {
 	echo '<div class="error"><p>';
-	esc_html_e( 'WooCommerce Product Blocks development mode requires files to be built. From the plugin directory, run <code>npm install</code> to install dependencies, <code>npm run build</code> to build the files or <code>npm start</code> to build the files and watch for changes.', 'woo-gutenberg-products-block' );
+	printf(
+		/* Translators: %1$s is the install command, %2$s is the build command, %3$s is the watch command. */
+		esc_html__( 'WooCommerce Blocks development mode requires files to be built. From the plugin directory, run %1$s to install dependencies, %2$s to build the files or %3$s to build the files and watch for changes.', 'woo-gutenberg-products-block' ),
+		'<code>npm install</code>',
+		'<code>npm run build</code>',
+		'<code>npm start</code>'
+	);
 	echo '</p></div>';
 }