Pergola Foundation - Building & Construction - DIY Chatroom Home Improvement Forum
Advertisement


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

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

Reply
 
Thread Tools Search this Thread
Display Modes
Old 09-19-2010, 07:37 PM   #1
Newbie
 
Join Date: Sep 2010
Posts: 2
Rewards Points: 10
Default

Pergola Foundation


Hi. I'm building a pergola. It will be about 18 feet wide and 22 feet long. I will be using 4x4 or 4x6 vertical supports. I figure I will need about 6. I do not want to attach the pergola to the house, but will be building it right next to it directly outside my kitchen sliding door. I need to know how to build the foundation(s) for the supports?
JIM 47 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-19-2010, 07:59 PM   #2
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,353
Rewards Points: 32,008
Blog Entries: 11
Default


Set them 4 feet in the ground like fence posts.
joed is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-19-2010, 10:17 PM   #3
Member
 
jlhaslip's Avatar
 
Join Date: Dec 2009
Location: Edmonton, Alberta
Posts: 5,975
Rewards Points: 708
Default


4 x 4's are pretty skinny to hold up any roof system.
Use 6 x 6's or 8 by's.
__________________
Quote:
Short of cutting off a body part, the worst that can happen in woodworking is manufacturing really nice looking kindling. --- Quoted from lenaitch
jlhaslip is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-20-2010, 06:01 PM   #4
Newbie
 
Join Date: Sep 2010
Posts: 2
Rewards Points: 10
Default

Pergola Foundation


Thanks for the replies...I will use 6 by 6. My wife said the same thing. I have seen some programs on TV. They build some kind of foundation by pouring cement and then sinking somekind of base holder in the cement to attache the uprights to(I'm looking for somekind of insight into that process and where to look for the hardware). None of the upright goes underground in the programs I've seen...in fact they emphasized the value in keeping the wood above and out of reach of the soil or water. no?? I'm thinking just the sheer weight of this thing along with the trusses will insure it stays put and does not fold up...
JIM 47 is offline   Reply With Quote
Old 09-20-2010, 07:27 PM   #5
Civil Engineer
 
Join Date: Mar 2009
Location: Boston
Posts: 5,832
Rewards Points: 5,246
Default


The system that you are referring to is a Simpson post base, specifically designed to support the post about 1/2 to 3/4 inch above the concrete. The post base is installed in the concrete footer when the concrete is still wet. There are at least three different types of post bases, I am currently installing a Simpson post base designed to be anchored using a J bolt.
Daniel Holzman is offline   Reply With Quote
Old 09-20-2010, 07:34 PM   #6
Super Moderator
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 20,353
Rewards Points: 32,008
Blog Entries: 11
Default


Here is company's version of deck anchors. I suppose they would work for pergolas.
http://www.strongtie.com/products/co...ba-abe-abu.asp

joed is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
moist soil under raised foundation during winter bn300 Building & Construction 0 09-17-2010 02:51 AM
Round House Foundation Feasibility Mswick Building & Construction 23 02-27-2010 08:34 AM
Foundation Repair Help rasilun Remodeling 1 10-15-2009 10:26 PM
How to add footing and foundation to existing foundation? ptcamaro Building & Construction 6 06-22-2009 10:22 AM
Floor Joists Lifting Off Foundation Walls?! cbeingessner Building & Construction 2 06-12-2008 08:39 AM




Top of Page | View New Posts