But if you have decided to go for Professional hardwood floor installation then follow the tip mentioned to avoid any pitfalls. Keep reading to find out most-effective tips to follow while installing hardwood flooring. Quick Tip: Careful planning is important to achieve master results from the hardwood floor installation. You need to have al-least a certain level of subflooring (not less than 3/16’’ over a 6’ span). This phenomenon is called a wood movement. It is therefore important for hardwood to acclimate in the space (where they will be installed).