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StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 6639
Experience:  Structural Engineer
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My name is . I am adding a room to my barn and I want to add

Customer Question

My name is***** am adding a room to my barn and I want to add a rope hoist from the ceiling, this will attach to an 18' end bearing rafter(s). The hoist will be capable of lifting 500 lbs. I would like the rope hoist to travel on a track attached to the rafter(s) about 8' each way of center. What is the rafter spec for this rope hoist application or how do I calculate the size of alternate materials in my ceiling?
Submitted: 4 months ago.
Category: Structural Engineering
Expert:  StructuralEng replied 4 months ago.
Hello. I can help
Expert:  StructuralEng replied 4 months ago.
These are sloped rafters,
Expert:  StructuralEng replied 4 months ago.
How many rafters will it attach to?
Customer: replied 4 months ago.
I'm sorry I didn't reply earlier, your responses went into my clutter folder - much like a spam folder. The rafters will be attached to an existing wall 4' above where they rest on the new outside wall 18 feet away.
Customer: replied 4 months ago.
There will be at least four rafter involved.
Expert:  StructuralEng replied 4 months ago.

I would install 4x10 rafters that are additional just to support the rope hoist. That will keep it separate from the roof rafters.

Customer: replied 4 months ago.
Thank you for the response, I will add in the additional rafters to carry the rope hoist load.
Expert:  StructuralEng replied 4 months ago.
No problem. I'm happy to help. Good luck with your project.

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