The ribs are there to add stiffness to the floor. If they are not there the floor is weaker and may oilcan and at worst may collapse under you. Do you use a kneeling pad? Its masochistic not to.
The ribs are there to add stiffness to the floor. If they are not there the floor is weaker and may oilcan and at worst may collapse under you. Do you use a kneeling pad? Its masochistic not to.