A ladder rack apparatus and method that allows a person to easily store a step ladder within the interior overhead space of a work vehicle. Generally, a sled-like design wherein the front of the rack is hingedly attached to the interior roofline with a latch provided at the rear for securing a step ladder in the overhead space. The ladder rack is accessed from the rear doors or liftgate of a vehicle. The rear latch is opened allowing the rear of the ladder rack to drop to a desired height. A step ladder is loaded onto or unloaded from the ladder rack. The rear of the ladder rack is raised back up to the interior roofline and latched in place. The interior step ladder rack is especially useful to service vehicle operators as an aid in freeing vehicle floor space without requiring the use of a roof top rack.