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walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 2538
Experience:  Over 30 years of Structural Engineering experience.
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I'm trying to add a Dutch hip roof over a new deck on the

Customer Question

I'm trying to add a Dutch hip roof over a new deck on the gable end of my house.
Deck is 2"×8" construction on 6"×6" posts set on concrete pillars 48 to 55" in the ground.
Front of house is 32' wide. Existing deck is 98" deep (from siding out) with center of deck support beam at 93-1/2" from siding.
The deck sits on 5 posts over the 32' span but I only want to use 3 supports for the roof to keep sightlines open in front of the picture window.
The posts supporting roof will sit directly above the deck posts below... one at each end with one at dead center.
I will be attaching 2"×8" ledger to house with structural screws through 2"×6" double top plate with joist hangars at ledger and beam.
Rafter will overhang beam to allow for 16" eave.
Rafters will be 2"×6" on 24" centers.
I live in Thunder Bay, Ontario, Canada
My question being...
What size beam do I need to support this roof over the two 16' spans between the 3 pillars?
Submitted: 1 year ago.
Category: Structural Engineering
Expert:  walkereng replied 1 year ago.

I can help

Expert:  walkereng replied 1 year ago.

Would you be able to draw a rough sketch for me with some dimensions and share it with me? I want to make sure I fully understand your configuration. There is a button on the Chat Window that allows you to attach files.

Expert:  walkereng replied 1 year ago.

I am still here to help if you need it.

Expert:  walkereng replied 1 year ago.

Let me know when you come back online

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