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 08-25-2008, 10:35 AM   #1
Newbie
 
Join Date: Aug 2008
Posts: 2
Rewards Points: 10
Default

Cantelever distance for deck


My existing deck catelever about 8 ft from the house. The current joists are in good condition but all the decking and railing needs to be replaced. I want to replace the wood decking with synthetic decking using Timbertech which is significantly heavier than wood. The joists are 2x12 spaced 16in on center. I'm concern about the added weight, anyone done something like this before?

joeyellow is offline   Reply With Quote
Old 08-25-2008, 03:16 PM   #2
Member
 
Join Date: Mar 2007
Location: Long Island, NY
Posts: 9,519
Rewards Points: 2,000
Default

Cantelever distance for deck


The post needs more detail and some clarification. It's doubtful the deck cantilevers 8 feet out from the house. That would mean the deck is unsupported for 8 feet and the deck ledger is all that is holding it up.
Cantilever is the projection of a deck past a support. Usually limited to under two feet.
What the deck can support depends on what the substructure is and you left that out.
Try posting a picture of the structure.
Ron

Ron6519 is offline   Reply With Quote
Old 08-25-2008, 04:55 PM   #3
Newbie
 
Join Date: Aug 2008
Location: Mount Airy, MD
Posts: 19
Rewards Points: 10
Default

Cantelever distance for deck


That's a heck of a cantelever...

Here in Maryland code is 2ft...but I was able to get the deck to pass inspection to a 4ft one using 6x6 posts....
handyd123 is offline   Reply With Quote
Old 08-25-2008, 05:23 PM   #4
Member
 
concretemasonry's Avatar
 
Join Date: Oct 2006
Location: Minneapolis/St. Paul, Minnesota - Latitude 45.057 Longitude -93.074
Posts: 3,819
Rewards Points: 2,126
Default

Cantelever distance for deck


A catilevered balcony is a different breed from a cantilevered deck and it is possible, but has problems.

The major problems are the obvious moisture and rot of the joists and the water intrusion problems in addition to the structural adequacy.

Adding to weight to the joists could cause big problems and the floor inside could be raised due to the extra load on the joists - that is if the joists can handle the load.

Not an anaylsis by way of tables/charts and requires a little more knowledge than the local carpenter/handyman. Certainly the riginal was not buit or designed for additional load.
concretemasonry is offline   Reply With Quote
Old 08-25-2008, 10:14 PM   #5
Member
 
Join Date: Jul 2006
Posts: 120
Rewards Points: 75
Default

Cantelever distance for deck


You may have another issue to consider as well. I used TimberTech on a deck/wheelchair ramp two years ago, and if I remember right the deck boards required joists on 12" centers if you running the boards at a 45 deg. angle, as is typical. Not sure if that is true for all their products, but thicker boards (I used 5/4) which might span more will exacerbate your weight problem.

I've seen balconies like this quite often, so I'm not sure what the confusion is about (they've usually been more like 5-6 feet though).
LanterDan is offline   Reply With Quote
Old 08-26-2008, 12:14 PM   #6
Newbie
 
Join Date: Aug 2008
Posts: 2
Rewards Points: 10
Default

Cantelever distance for deck


Thanks for the responses. Yes my deck is more like a cantelever balcony than traditional deck using posts and beams. Several contractors came out and said it's ok but I was just checking to see if anyone has had something like this put in.

joeyellow 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
AC unit distance to out side compressor gene380 HVAC 4 06-28-2008 10:26 AM
DW distance from Sink cibula11 Plumbing 1 03-19-2008 10:42 AM
Bathroom outlet - distance from tub?? plbsplbs Electrical 11 07-09-2007 09:22 PM
Plumbing distance from Circut Panel Dragon Electrical 7 04-13-2007 07:52 PM
siding distance from shingles? matchupeabody Roofing/Siding 13 11-01-2005 10:31 AM




Top of Page | View New Posts

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