Forums | Home Repair | Home Improvement | Painting | Interior Decorating | Remodeling | Landscaping


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 10-28-2008, 12:17 PM   #1
Newbie
 
Join Date: Oct 2008
Posts: 1
Share |
Default

Extending an existing concrete garage base


Hello
I am currently extending my existing concrete garage base as i have bought a larger garage.
Does anyone have any tips on the best way of tying in the old base to the new.
I am extending the rear of the base by 18 inches and as the back of the existing base is 2 feet above ground, and will take the full weight of the rear of the garage i am concerned that if i do not tie them together proprerly then over time the new may break away from the old.
Many Thanks
Alan

alan tomlinson is offline   Reply With Quote
Old 10-28-2008, 01:10 PM   #2
Registered User
 
Termite's Avatar
 
Join Date: Apr 2008
Posts: 6,520
Default

Extending an existing concrete garage base


You definately can't wing this...You need an engineer's assistance. The old slab will typically tie to the new with a lot of rebar dowels drilled and epoxied into the old slab and into the reinforcement grid of the new slab.
If the slab is bearing the new exterior walls, you'll need an adequate footing design to support the slab as well.

In a nutshell, you can't get this designed for you online.

Termite is offline   Reply With Quote
Old 10-28-2008, 02:26 PM   #3
Member
 
Join Date: Sep 2008
Location: Portland, OR
Posts: 1,186
Default

Extending an existing concrete garage base


I use a hammer drill and a 1/2 x 18 drill and drill horizontal into the existing concrete. Then I pound in 1/2 in rebar. I would use footers on the end which is pretty much a requirement in most areas.

Here is a picture.
Attached Thumbnails
Extending an existing concrete garage base-dsc_2377.jpg  
__________________
My idea of a perfect day: No where to go and all day to get there.
Marvin Gardens is offline   Reply With Quote
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
extending onto existing concrete under veranda absinthe Building & Construction 4 09-11-2008 07:54 AM
Garage concrete and driveway asphalt repairs creamaster Building & Construction 4 07-12-2008 10:51 PM
Extending Concrete Patio Slab bobo Building & Construction 6 04-17-2008 12:17 PM
Need to expand existing concrete pad for A/C unit miketegra Building & Construction 2 07-03-2005 10:27 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.