Heavy work is one of the five job classification types used by the SSA to determine whether or not you are able to perform work of any kind. The classifications are determined, in part, by your answers to the Residual Functional Capacity (RFC) form which you complete as a part of the disability benefits application. When filling out the RFC, and throughout the disability application process, it is important that you are as thorough as possible as the SSA will only consider ailments and conditions that are in your medical records.
Heavy work is strenuous and if you are found able to complete heavy work you will be ineligible to receive SSDI. If you qualify for heavy work you automatically qualify for each classification beneath it. In order to qualify for heavy work, you must be able to frequently lift up to 50 pounds and occasionally lift between 50 and 100 pounds.