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Limitations

deck load capacity
deck strength limits

40 tons
270 psf

Our maximun jacking depth is water 45 feet deep at high tide.  Although the legs are 78' tall, we need to allow for the pads to sink into the bottom, for the height we want to elevate above sea level, for wave height, for the freeboard of the boat, and enough leg for the hydraulic motors to engage the leg racks.

The pads work well in sand or mud.  We cannot jack up on rocks.