Can this truss shape be made? See the pic. My arrangement here only shows outer shape, with 2×4 chords. No webs. It is part of a dormer arrangement, and end bearings are via connectors to a girder truss at each side. My question relates to the 9-1/2″ flat at the bottom chords, before the little vault comes into play. It is the architect’s idea, and the ceiling vault lines up with window and wall stuff below. We would like to keep the detail as is. I have not heard back from the truss plant engineer yet, so I thought I would ask here. BTW, if 2x8s are used for the bottom chords, the 9-1/2″ flat can be beveled on the 2x8s, with plenty of meat left for a direct plate connection to the end verticals. More wood cost, yes, but maybe trades off even when compared to using 2x4s and additional webbing and plates.
Replies
Sure use 4 layers of 3/4" plywood with the joints staggered.
Thanks for your reply, but I want to buy these trusses from a truss supplier as part of my whole project package. I don't plan to make them myself. The truss engineer will need to come up with a solution, if he or she can, that can be made using available materials common to truss plant operations: 2x dimensional lumber, and truss plates.
Sure this can be trussed easily.
I would look into leaving a 1 1/2" by 9 1/2" pocket at the bottom to receive a 2x10 after the truuses are in place.
This would save a lot of blocking for corner bead and make it easier to straighten that line as well.
Can you provide a little more detail, please, re the allowance for a 2x10? We are planning to strap all the ceilings with 1x3s on 16" centers, and that springline where flat ceiling transitions to vault pitch was going to get side by side straps.
If you are strapping everything then you won't need the 2x10.
Nice little detail should look good finished.
No disrespect to these other guys but, I would get an answer from Boss hog or another truss engineer before committing to any design.
They don't call him Boss for nuttin!
Mr T
Do not try this at home!
I am an Experienced Professional!
Actually - I'm kinda disappointed. I was expecting a huge monstrosity of a truss, or a round mansard or something. What you show is a piece of cake. Not even challenging.....................(-:
I doubt you'd need a 2X8 for the bottom chord. The truss plant might use a 2X6 bottom chord. Or they might use a 2X6 vertical on the end and cut the bottom chord to make the rest of it. Every plant will likely do it differently. And any way of getting it done is probably fine.
Borrow money from pessimists--they don't expect it back.
B.H. ...."a round mansard" now I really like that idea! Got any details on the person that came up with that idea?
Hiya Nails -
I've only done round trusses twice. We built trusses in segments of 2X12, then cut them to radius afterwards.
The idea for these came from an architect in both cases. Who else would dream up something like that ???Laughing helps. It's like jogging on the inside.