Truss Weight Limits - Building & Construction - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 04-03-2012, 01:45 PM   #1
Join Date: Feb 2012
Posts: 21
Rewards Points: 10

Truss weight limits

Does anyone know what the weight limits of a truss is? For example, I have a 30x50 pole barn and wondered if I could put some 2x6s between the trusses and lay some plywood between them for additional storage. Would this cause any structural problems?

I'm attaching a picture of the interior of my building.
Attached Thumbnails
Truss weight limits-image-3027355019.jpg   Truss weight limits-image-3915334916.jpg  


bkanneg is offline   Reply With Quote
Old 04-03-2012, 02:20 PM   #2
Civil Engineer
Join Date: Mar 2009
Location: Boston
Posts: 5,638
Rewards Points: 4,856

Those are manufactured trusses, not home built ones. You absolutely need to contact the manufacturer if you want reliable structural information on the load capacity of the trusses. When you talk to the manufacturer, they are going to want a written description with a scaled plan of exactly what you want to do, and the load in pounds per square foot you plan to have. They can then tell you if their trusses are rated for the load, and they should have recommendations on how to install the support framing to the trusses.

If you are unable to determine who the manufacturer is, your best bet would be to hire a licensed structural engineer to run the computations for you. As a matter of note, trusses are typically very sensitive to changes in loads, so DO NOT add load without having a thorough, careful analysis done first.


Daniel Holzman is offline   Reply With Quote
The Following User Says Thank You to Daniel Holzman For This Useful Post:
woodworkbykirk (04-03-2012)
Old 04-03-2012, 07:15 PM   #3
journeyman carpenter
woodworkbykirk's Avatar
Join Date: Sep 2011
Location: nova scotia canada
Posts: 3,315
Rewards Points: 1,248

EXActly! their designed to support the roof load and the weight of drywall.. nothing else
woodworkbykirk is offline   Reply With Quote
Old 04-03-2012, 08:05 PM   #4
Join Date: Feb 2012
Posts: 21
Rewards Points: 10

Thanks for the info! Glad I came here before I did something stupid.
bkanneg is offline   Reply With Quote
Old 04-03-2012, 08:12 PM   #5
Join Date: Dec 2006
Posts: 17,158
Rewards Points: 6,652

If it was me, I would build a structure that would allow you to utilize storage up high, and still have space below. That would mean coming up with a plan and getting the wood. How much weight are you planning on storing? Maybe get some Pressure treated 6x6 posts to use as framing timbers, and use 2x10's for the floor framing, with 2x6's to keep the 6x6's from spreading at the bottom, but you will have to keep the front open. That would mean two on the left, two on the right, and same for the back sandwiching the 6x6's between them. I know that it is overkill, but it would last.
gregzoll is offline   Reply With Quote

Thread Tools
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
Second story weight limits kerronelm Flooring 21 03-22-2012 06:59 PM
Adding more weight to truss system... what can it hold? Sonnie Building & Construction 7 02-06-2009 08:45 PM
Calculating Weight limits for floor jamiedolan Building & Construction 4 12-01-2008 11:14 PM
Tile Floor weight limits? Scott_A Flooring 1 02-25-2008 11:15 AM
Gambrel Truss Dormer and Ladder Framing? fauer Carpentry 3 09-30-2007 07:36 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1