The Thule Box Lift 571 is a great product that we use ourselves at home. We use it to stash a great big 3 man kayak up into the roof of the garage. The kit uses a worm gear so that little effort is required to wind our 30kg kayak up and hold it securely in place out of the way. The unit itself is designed to lift to a whopping 100kg although this will obviously depend on how well it is attached to the garage roof and the garage roof material.
It is called a box lift because it was primarily sold for hoisting luggage boxes off the roof of a car but it can be used for hoisting up any up load. Often like us that can be a kayak or a paddle board, ladders and we have even sold a couple to customers that have used them to hoist removable hardtop roofs from their sports cars.
Installation involves mounting four pulley wheels into a strong part of the roof and some mounting brackets to support the horizontal winding rod. It is pretty straight forward and took me about an hour and a half including fixing some extra battens to the ceiling to screw into.
The price for this kit at the time of writing is $225. Give us a call to purchase or check the current pricing.