Hello my name is Papatrexas and I will be happy to assist you.
Do you care if is wood or metal?
Here you go
Nominal Size - Depth x Width- 8"x4" steal beam = to 6900 lbs
I don't know the weight of this beam you ask what will support 1500 lbs and yes an 8x4 beam will have a live load o 6900 lbs
I can help you, I am an Engineer.
Will this 18' span trolley hoist beam be laterally braced along it's span or only braced at the end supports?
I’d like to point out that a Professional Engineer’s standard of care typically includes a site visit to assess field conditions and get an overall understanding of the structure. This can obviously not be accomplished through the internet. The information provided here is meant for planning purposes only (general sizing and budgeting) and is based on the information provided by you. All loading cases considered are for vertical loads only, no lateral analysis has been completed. The information should be verified by a professional engineer who can visit the site to ensure that potentially important information has not been overlooked or omitted.
I assumed the beam will only be braced at the supports.
You can use a W6x16 (50 ksi) steel beam for your 18’ clear span beam. The beam is 4” wide and 6.25” deep. It weighs 16 pounds per foot of beam length. You will need to have a local engineer detail your connections, size your column supports, and determine foundation requirements.
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