DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Carpentry and Woodworking > Decking re: Joist Spacing




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 04-15-2011, 11:18 PM  
swimfrog
Junior Member
 
Join Date: Apr 2011
Location: Seattle, WA
Posts: 1
Default Decking re: Joist Spacing

I have an old balcony that has joists 33" apart. The 2x8 joists actually come out of the house and form a cantilevered support for the balcony floor. Another 2x8 caps the end of the joists, and 2x8s are installed perpendicular to the joists flush with the exterior of the house to form the frame for the balcony floor.

The current floor is made from 2x4s, and I'd like to replace those with cedar decking material, partly because I have some left that I can re-use, and partly to make it match a newer deck on a different part of the house.

I'm told that decking material will not work with the joists spaced so far apart, because the decking material will warp.

Is it advisable to "beef it up" by adding additional joists with joist hangers, or would that put pressure on areas that shouldn't be used for support? Is it okay to do this since the goal is just to avoid warping and not to try to provide additional support?

I'm also okay with just replacing the 2x4s with new 2x4s, but curious as to how others would do it.



__________________
swimfrog is offline  
 
Reply With Quote Quick reply to this message
Old 04-16-2011, 03:45 PM  
joecaption
Senior Member
 
Join Date: Jan 2011
Location: Hartfield VA, VA
Posts: 1,361
Liked 38 Times on 33 Posts
Likes Given: 2

Default

The joist must be no more then 16" on center.
Your decking boards need to be at least 1" thick not 3/4" if that's what your thinking of using.
Cedar will be high maintaince, For that small a deck I'd use composit lumber that's PVC coated.
Never install any decking up tight to the outside wall. It needs to be able to drain.

__________________
joecaption is offline  
 
Reply With Quote Quick reply to this message
Old 04-17-2011, 10:05 PM  
nealtw
Contractor
 
Join Date: Nov 2010
Location: vancouver, b.c.
Posts: 9,414
Liked 744 Times on 664 Posts
Likes Given: 1297

Default

Your deck had poor construction when it was built, if the top is rotting what are the joists looking like. If they have any rot at all you want to have a look at what the condition is gonig back in the house. Cantilever joist should never covered with drip thru flooring especially when every other joist is missing.

__________________
nealtw is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

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 On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Decking over concrete cibula11 General Home Improvement Discussion 11 07-30-2011 06:02 AM
Attic Decking matt4321 Roofing and Siding 4 10-05-2008 05:16 PM
DIY instructions for decking milit General Home Improvement Discussion 2 11-08-2007 01:01 PM
concrete screw spacing in buck boards Mudball Windows and Doors 2 05-27-2006 06:29 AM
Spacing flooring Servant_ Flooring 2 01-06-2006 03:24 PM