Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 07-25-2008, 02:02 AM   #1
Newbie
 
Join Date: Jul 2008
Posts: 1
Share |
Default

steel beam length


I am trying to figure out what the smallest steel beam possible is to span 28' while supporting a deck with a dead load of 300 lbs and live load of 1200 lbs. The deck will be supported at one end by this beam and at the other end by a wall to my house which is quite sturdy. The decking will be redwood 2x6s that extend from the house to the beam. Is a W8x10 too small? It's a long span, but the steel beam won't be expected to support much weight. Is there such a thing as a W10x10? I'm just looking for a ball park estimate. Nobody at the place where I buy my steel speaks english very well so I can't get even a rough guess.

otto man is offline   Reply With Quote
Old 07-25-2008, 07:39 AM   #2
Registered User
 
Termite's Avatar
 
Join Date: Apr 2008
Posts: 6,520
Default

steel beam length


I'd strongly suggest contacting a structural engineer for this task.

Termite is offline   Reply With Quote
Old 07-25-2008, 08:02 AM   #3
Member
 
concretemasonry's Avatar
 
Join Date: Oct 2006
Location: Minneapolis/St. Paul, Minnesota - Latitude 45.057 Longitude -93.074
Posts: 3,736
Default

steel beam length


Your load looks low, but you did not provide enough details like deck size and location. Is that total loads or per foot loads?

Strength is one thing. At 30' long, you will probably have more problems with deflection and a springy deck.

Not for an amateur to design.

Dick
concretemasonry is offline   Reply With Quote
Old 07-26-2008, 11:28 PM   #4
Member
 
Join Date: Feb 2008
Posts: 51
Default

steel beam length


you do need an engineer but a ball park figure for what you are thinking of is half your span in feet.... in inches of beam....this is no formula for substituting an engineers stamp but i think it will be close to a 14 inch beam of medium weight

28 feet devided by 2 = 14 feet = 14 inch beam
billie_t is offline   Reply With Quote
Old 07-27-2008, 08:11 AM   #5
Lic. Builder/GC/Remodeler
 
AtlanticWBConst.'s Avatar
 
Join Date: May 2006
Location: New England
Posts: 7,556
Default

steel beam length


Try another supplier. Most have a service to provide you with the calculated beam dimensions, and engineer-stamped specs, which may be required in order to get, and approve, a permit and inspection.
AtlanticWBConst. is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
OSB Stronger than Plywood? Weathermaker01 Flooring 15 12-22-2012 09:06 AM
Question about steel I BEAM in basement djohns10 Building & Construction 7 06-23-2012 03:55 PM
Steel Beam or Wood Reinforcement for 2nd floor addition? coralhead1 Building & Construction 2 06-06-2006 01:22 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.