Truss quotes-fair?

[shane3fan]

Got my first quote in for trusses today--you fine folks think they gave a decent price?

32' span

10:12 ( their engineer actually made this note on the quote "Pitch has Been Reduced to Avoid Piggybacks per Value Engineering" and listed pitch as 9.5:12 )

16" center

EDIT: I was at work when I typed this and forgot to put the building dimensions--48x32--my math tells me I need 36 trusses.

Attic trusses $3628 plus 7% sales tax
standard trusses $2735 plus 7% sales tax

 

[caseyr]

How many trusses are needed?

 

[shane3fan]

How many trusses are needed?

my math tells me 36 would be required--so roughly $100 each for the attic trusses.

 

[ForceFed70]

$100 per truss is a pretty good deal. I paid a lot more, but everything is expensive around here.

 

[caseyr]

from what I have seen it sounds like it is right in the ball park. It would be nice to have all that extra storage.

 

[cranejon]

Attic trusses, but my experience was the designer would not give me a live load for the truss!

 

[Strouty]

Attic trusses, but my experience was the designer would not give me a live load for the truss!

What would be the point of them having attic space without a live load?

 

[hockey88fan]

32' span sounds far, is there posts below?

 

[Steevo]

The OP said nothing about the length of the building, only the truss span and total cost.
If this is a 100-foot long, 32-foot wide building, this is a major bargain.
If the building is 32 feet across and only 24 feet deep, then that is way too much for 18 trusses.
Can you even buy attic trusses for a 32 foot free span?
What size bottom chord would they have?

 

[yucholian]

The OP said nothing about the length of the building, only the truss span and total cost.
If this is a 100-foot long, 32-foot wide building, this is a major bargain.
If the building is 32 feet across and only 24 feet deep, then that is way too much for 18 trusses.
Can you even buy attic trusses for a 32 foot free span?
What size bottom chord would they have?

He said 16" OC, 36 trusses needed. That's around 46 feet long building.

 

[64dragnwagon]

$100 each is a very good deal IMO.
32' clear span truss is not that far.

 

[shane3fan]

ok--got a written quote with the engineering numbers---I cant make heads or tails of all the acronyms and figures---anyone on here an engineer or familiar with trusses? Im trying to see what sort of load the trusses are able to support. The way I read it, it says 50 lbs/square foot--but Im not positive.
2x10 bottom chord is what is listed.

 

[Falcon67]

Quote sounds good - For my now 24x40 I figured $80 each if I went 28 or 30 deep. Since I went 24, I did hand built rafters at about $40 each. Your truss figures should have something about live load, dead load and maybe snow load. Might also list ceiling dead load. 2x10 bottom is pretty stout. I attached a piece of an older truss design PDF that has some detail in it. Might help?

 

[shane3fan]

this is the file they sent me.

 

[Stuart in MN]

From the lower left corner of the pdf file:

LOADING (psf)
TCLL = Top chord live load = 20.0
TCDL = Top chord dead load = 10.0
BCLL = Bottom chord live load = 0.0
BCDL = Bottom chord dead load = 10.0

Dead loads are the loads of the structure itself, live loads are for occupants or furniture or storage - I'm not a structural expert by any means but it sounds like they aren't rated for storing anything.​

 

[mdlbldrmatt135]

.....

 

[shane3fan]

the other part of that states ;

8) Bottom chord live load (40.0 psf) and additional bottom chord dead load (10.0 psf) applied only to room. 13-14, 12-13

I read it to mean that the areas outside of the attic "room" would be 10.0 psf and the parts inside the room would be 50 psf---now that I see the difference between live/dead loads I would think the 40 would be the accurate number--whatever that means.

Im waiting on a response from the engineer to be certain.

 

[Stuart in MN]

OK, I see the notes now - I should have read the whole thing.

 

[ForceFed70]

40lb/sqft is standard live load for an attic room. If you figure out the square footage of the room and multiply by 40, you will find the total amount of weight you can put up there (only if evenly distributed).

Don't count the dead load, that's supposed to be for the weight of the construction materials, flooring, etc.

 

[brad900]

I just got a quote for 17 32' standard trusses for $1509, that includes del. & tax