Change max number of products on shop pages

You can add this code to your functions.php:

/**
 * Change number of products that are displayed per page (shop page)
 */
add_filter( 'loop_shop_per_page', 'new_loop_shop_per_page', 20 );

function new_loop_shop_per_page( $products ) {
  // Return the number of products you wanna show per page.
  $products = 100;
  return $products;
}

Change the 100 for more if you need it, since you don’t want pagination simply put a high number and you won’t have pagination.

Change the number of products displayed per page