Back to back joist hangars

[plainmd]

Getting ready to put a ceiling in my garage of either metal or sheetrock.My roof trusses are on 8 ft centers...I am thinking about useing2x6 joist hangers on two foot centers to span the trusses....I was wondeing since you would have to almost have back to back joist hangers would the one intefere
with the other since you would be nailing the same place just on the opposite
side.

If a person was to put up metal could a person do the 2x6 on four foot centers

Thanks in advance...Hope the thread makes sense

 

[Steevo]

Will the trusses, at 8' apart, be sufficient to support the additional lumber of the added blocking plus the sheet rock?

As for the nailing, I'd think that nailing from both sides every 2' might be detrimental to the integrity of the trusses. I am not a structural engineer, that is just my thought on it.

However, if your trusses will support the weight, and you use hangers, what about top-flange hangers, with the top flanges overlapped, so you only need two nails, into the top of the truss chord?

http://www.homedepot.com/h_d1/N-5yc...angId=-1&keyword=simpson+hanger&storeId=10051

 

[Sureshot]

I have tin on 6' centres. With insulation blown on top.

 

[pattenp]

Use a saddle joist hanger.

 

[ishiboo]

Will the trusses, at 8' apart, be sufficient to support the additional lumber of the added blocking plus the sheet rock?

As for the nailing, I'd think that nailing from both sides every 2' might be detrimental to the integrity of the trusses. I am not a structural engineer, that is just my thought on it.

However, if your trusses will support the weight, and you use hangers, what about top-flange hangers, with the top flanges overlapped, so you only need two nails, into the top of the truss chord?

http://www.homedepot.com/h_d1/N-5yc...angId=-1&keyword=simpson+hanger&storeId=10051

Those rely on nails driven through the joist in the lower holes INTO the ledgerboard/header to gain rated strength. If you only nail the tops, you may run into trouble.

 

[brownbagg]

8 ft centers, damn, mine are on 16 inches centers

 

[dirttracker18]

My roof trusses are on 8 ft centers...

Holy ****

 

[plainmd]

This is a pole barn structure....They call my trusses load bearing and the manafacture said i could hang sheet rock on them...but thinking the tin would be a better idea...

Thanks for the input

 

[plainmd]

Where is a place that sells the saddle joist connectors

 

[Highbeam]

Saddle truss hangers are cool except a pole barn commonly uses pairs of trusses squeezing each post so you put a 6" block between the trusses and then hang the joists off of only one side of the truss.

Some guys build pole barns with a header and many extra trusses so that you have trusses not directly bolted to a post. In that case, you could use those cool saddle hangers.

I'm about to do the same thing and my trusses are on 12 foot centers!!! So yes, 2x6 lumber in joist hangers. Trouble is that many of the hangers need to be situated where the webbing of the truss makes the top mount hanger impossible so you must use those face hangers.

You need to use all nail holes of the chosen hanger. You need to use the proper short and fat nails too.

Did you also put small blocks between the pairs of trusses that squeeze each post?

My trusses were designed for a 10 lb/SF dead load in anticipation of the ceiling structure. A proper 5/8" type x drywall ceiling plus loists is under 5 lbs/SF typically.