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Adding 8000 lb boat hoist to a covered dock

Adding 8000 lb boat hoist to a covered dock

Adding 8000 lb boat hoist to a covered dock

(OP)
My problem is that the roof structure was never designed or constructed with this 8000 lb load in consideration.

Finding a structural engineer who is willing and able to assist has been a challenge!

Can anyone guide me to a source for steel load characteristics or help me determine the best way to add structural support to the roof structure?

This link is to the product I intend to use.

http://www.boatliftdistributors.com/catalog/product_info.php?products_id=307&;osCsid=af55afe52cf9a852b733dcec2a240e47  

RE: Adding 8000 lb boat hoist to a covered dock

You need to continue looking until you find a licensed structural engineer.  Do you really want to drop 8000 pounds if your kids or neighbors' kids are near the thing?

RE: Adding 8000 lb boat hoist to a covered dock

(OP)
The boat is closer to 3000 lbs - You are 100% correct and I wouldn’t do it unless the numbers worked. Do you know who the licensing authority is?

RE: Adding 8000 lb boat hoist to a covered dock

It should be your state's Board of Professional Engineers.

RE: Adding 8000 lb boat hoist to a covered dock

Repeat, get a structural engineer to design the reinforcement needed to support the boat lift.

I was retained as an expert witness recently when a boat and lift fell at Smith Mountain Lake.  The owner was hurt in the accident.

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