Reply To: how to change the width of the side menu with filters

Hello,

Manually you can change only in case if you use Layouts (Dashbaord -> Layouts) builder: https://take.ms/SLVqW

For the default Shop template from WooCommerce, you can try to use the below code:

.woocommerce-shop .sidebar-container  {
    flex: 0 0 20%;
    max-width: 20%;
}

.woocommerce-shop .shop-content-area {
    flex: 0 0 80%;
    max-width: 80%;
}

Paste it into the “Desktop CSS” area in Theme Settings -> Custom CSS.

Kind Regards