Sears Canada is to lay off another 624 staff as the ailing retailer works to modify its store structure to improve efficiencies. 

The move, which comes just two weeks after the company said it would axe 1,600-plus jobs, will mean a mid-tier level of employees at its full-line stores - resulting in an average loss of five workers per store.

Its store portfolio includes 181 corporate stores and 241 hometown stores. 

President and CEO Doug Campbell said: "Our current structure results in inefficiencies and barriers to effective communication among store associates and the changes we are making are designed to result in better store execution and consistency of presentation and standards.

"We continue to plan for the future of Sears Canada and are taking steps today that will allow us to continue serving customers as a viable national retailer coast to coast in stores and through our direct channel now and in the future."