Extra flooring each order How much extra hardwood flooring should I order to account for damage or waste from installation? Asked: 11/27/2016 9:38:42 PM +00:00 Typically in a normal install we recommend about 5 to 10% extra. Each install is unique and we can recommend an exact amount. Extra wood can be used for any future repairs needed. Answered: 11/27/2016 9:38:42 PM +00:00 by Olympic Hardwood Tags: Installation