The cost truly depends on what type of CMS you choose. There are a wide variety of options (i.e. Magento, WordPress, Joomla, Shopify, etc.) When building your eCommerce store you must factor in the size of an eCommerce website. Also if you are looking to sell across multiple channels such as Amazon, eBay, Google shopping, Houzz etc. In order to address these frequently asked questions, we have put together answers to a lot of questions.