What is the weight limit to the instrument table with shelf?

The weight capacity for items SG-82-SS to SG-88-SS is as follows; The top shelf has a 50lb weight limit, and the bottom shelf has a 100lb weight limit. The weight capacity for items SG-90-SS to SG-98-SS is as follows; The top shelf has a 100lb weight limit, and the bottom shelf has a 200lb weight limit.