Ordered that the order is affirmed, with costs.
The court did not improvidently exercise its discretion in granting permission to the plaintiffs' engineer to drill a small hole in the defendant's premises (see, Castro v Alden Leeds, Inc., 116 A.D.2d 549; Di Piano v Yamaha Motor Corp., 106 A.D.2d 367). The plaintiffs made a sufficient showing that due to alteration of the premises, their engineer needed to drill the hole in order to take an accurate measurement of the height of the ramp from which the infant plaintiff fell. Thompson, J.P., Kunzeman, Eiber, Spatt and Balletta, JJ., concur.