Plaintiff was injured when he fell from an aerial basket hoisted 30 feet above the ground. At the time of his fall, he had been mounting a 10 by 3 1/2 foot merchandise display grid to the ceiling beams of an area being renovated according to the specifications of Sam's Club, Inc., a retailer. The area had previously been configured to the specifications of the prior tenant, a different retailer. The renovation in which plaintiff was engaged, required the use of heavy, industrial-duty equipment, and involved the dismantling of old shelving, as well as installation of a customer service booth, new wiring, and new permanent structures for sales displays. It is thus clear that the subject renovation entailed a sufficiently "significant physical change to the configuration" of the premises to constitute an "altering" of the premises within the meaning of Labor Law § 240 Lab. (1) ( Joblon v. Solow, 91 N.Y.2d 457, 465).
Concur — Sullivan, J. P., Rubin, Tom and Saxe, JJ.