COMMUNITY FORUM

Sampo

03:56PM | 03/15/03
Member Since: 11/26/02
9 lifetime posts
Bvmisc
I have an old house built in 1905 and I would like to sister the attic floor joist. Since the joist are old construction the joist are actualy 2x6. My question is should I sister them with todays 2x8 or should I use 2x6? I read somewhere that said in order to sister a joist correctly you must use the same size joist or larger.

-Dennis

GlennG

03:48PM | 03/16/03
What is the reason behind wanting to sister the joists?

Glenn

Sampo

02:46AM | 03/17/03
Member Since: 11/26/02
9 lifetime posts
Well the floor seems to be able to hold plenty of weight. But I would like to firm it up a bit to make sure there is no bounce since I will be putting a treadmill up there.
The joist span is about 12.5' and they are spaced about 14.5" apart. I will be putting in blocking as well but felt sistering would be a good idea since I have the floor open.

GlennG

06:08AM | 03/17/03
You might want to consider using 2x8s to sister against your 2x6s. The 2x6s @ 16" centers are span rated for 10'-9" max. Even @ 12" centers a 2x6 joist is only rated for 11'-10". These span ratings are for attics and/or bedrooms, not an active room as you will be using it for.

For an active room with a tread mill the maximum span for a 2x6 joist @ 12" centers is 10'-9". 2x8s will meet your needs much better and will help eliminate the bounce much better.

Glenn

Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

captcha
type the code from the image

Anonymous

Post_new_button or Login_button
Register

Even if you turn off your electronics whenever you're not using them, they continue to use energy until you unplug them. S... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... For some decorative recycling, consider burying old bottles upside down to create edging for your garden beds and walkways... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon
 
webapp1