Double Level Deck 6x6 Posts - Building & Construction - DIY Chatroom Home Improvement Forum


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

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 09-05-2009, 10:44 AM   #1
Newbie
 
Join Date: Sep 2009
Posts: 1
Rewards Points: 10
Default

Double Level Deck 6x6 posts


I'm trying to build a double level deck and have a question about notching 6x6 posts.

The deck is going to be attached to the back of a row house with 2 6x6 posts 3' away from the house and about 12' apart. Another two 6x6 posts are going to be 15' from the house (also 12' apart), and thus 12' from the other posts.

I'm planning to actually cement in the two posts that are 15' from the house 30'' into the ground to have solid footers. My question is regarding the second deck above the first deck that will be 21' from the ground (about 10' from the first deck).

Can I cement in 2 6x6x24' posts and then notch them for the 2 2x10's to support the first deck? Will the rest of the 6x6x24 be able to support the upper deck given they've been notched half way up?

Advertisement

Skytree is offline   Reply With Quote
Old 09-05-2009, 01:14 PM   #2
Licensed P.E./Home Insp
 
Aggie67's Avatar
 
Join Date: Dec 2008
Location: New Jersey
Posts: 587
Rewards Points: 500
Default

Double Level Deck 6x6 posts


I wouldn't allow a 24 foot wooden column to be notched for 2x's half way up on my watch.

Multi-story decks bring into play several structural issues that aren't normally encountered in single level decks. Specifically, you need to address shear, column buckling, and seismic issues.

Other issues that have to be looked at include:

1. You won't get a 12 foot span out of two 2x10's, no matter what wood species you're using.
2. Frost and soil conditions will play roles in your footing design.
3. Local building code officials will have a say in footings and structural framing.

What state are you from, and have you been in touch with the building code official? There might be local requirements that he/she can help you with.

Also, in my neck of the woods, I can't build a multi-story deck without a sealed set of plans from an engineer.

Advertisement

Aggie67 is offline   Reply With Quote
Old 09-07-2009, 11:20 AM   #3
Remodeling Contractor
 
Join Date: Dec 2008
Location: Sandy Hook, CT
Posts: 3,590
Rewards Points: 2,000
Default

Double Level Deck 6x6 posts


best not to notch them. use carriage bolts to surround the posts with your beam and run the 2X10 on top of the beam.
Bob Mariani is offline   Reply With Quote
Old 09-07-2009, 11:47 AM   #4
Old School
 
Willie T's Avatar
 
Join Date: Jan 2009
Location: St. Petersburg, FL Minds of moderate caliber ordinarily condemn everything which is beyond them.
Posts: 3,634
Rewards Points: 2,000
Default

Double Level Deck 6x6 posts


Fist problem area you will be creating is "cementing" the columns into the ground. Don't do it. Water rot is going to eventually get you.
__________________
"True eloquence consists in saying all that is necessary, and only that which is."
François Duc de La Rochefoucauld
Willie T
Willie T is offline   Reply With Quote
Reply

Tags
6x6 , building deck , deck , decking , double deck


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
Ground level deck Daddyshammer Building & Construction 56 09-13-2009 08:58 PM
How do I secure deck railings between posts tigereye Building & Construction 19 05-10-2009 05:49 PM
warped deck rail posts cakem Carpentry 1 05-09-2009 09:24 AM
Ground level deck questions 4just1don Carpentry 7 06-30-2008 08:57 PM
Deck footers not 100% level? ssgumby Building & Construction 1 05-11-2005 08:32 PM




Top of Page | View New Posts