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gwhitis

08:47AM | 03/10/04
Member Since: 03/09/04
2 lifetime posts
Bvtools
Hello, I am new to this site. My building contractor is using "fingerjointed" studs for all my outside and inside walls. Should I be concerned? Gregory.

k2

09:27AM | 03/11/04
Member Since: 06/06/03
1250 lifetime posts
I'm not a pro by any stretch, but I sure don't like the idea.

That aside, are there stamped ratings on the studs? There was a URL posted on this a while back. I did find one (below), but this was just a search result; I haven't spent time looking at it.

http://www.wwpa.org/members_only/pdf/TN03_01.pdf

He's not using finger jointed RAFTERS too, is he?

So there are these ratings, but--pass or fail--I still am not sure I like the idea. Is glue as strong as the 'original'? Maybe at first, maybe even for "years" of accelerated simulation in some sort of chamber. But a house should last a LONG time--through all different weather, snow loads, etc.

Good luck, please post if you find anything else interesting...

-k2 in CO

homebild

04:37PM | 03/11/04
Member Since: 01/28/03
694 lifetime posts
Fingerjointed studs, rafters and joists are perfectly fine and just like any other type of engineered lumber are designed to be as good if not better than their dimensional lumber counterparts.


k2

05:01PM | 03/11/04
Member Since: 06/06/03
1250 lifetime posts
Good to know, Homebild! I'm glad to hear his builder is using decent materials.

Regards,

-k2

homebild

05:34PM | 03/13/04
Member Since: 01/28/03
694 lifetime posts
k2:

I had the same reservations you did about finger jointed studs over the past year or so and was corrected on a similar issue by another poster here at BobVila with a better knowledge of engineering than I.

While I had presumed that finger jointed studs where to be used for non-bearing walls alone, the state-of-the-art in finger jointed products has apparantly progressed to the point that even joists and rafters properly engineered can do the same or equal job as dimensional or engineered lumber.

Never any shame in adding something new to our collective knowledge.

I am glad I was corrected and learned a thing or two also.

I'll see if I can dig up the old thread for posterity sake..

Best regards,

joe

k2

05:50PM | 03/13/04
Member Since: 06/06/03
1250 lifetime posts
Hi there Homebild,

I appreciate your response (as I'm sure gwhitis did as well).

I certainly remember when those "lam-beams" became popular...those things have sure proved their worth over the years.

I guess I'm still not sure I like the idea of finger-jointed though--especially for things like rafters (we had a huge blizzard here last year!)--but it is amazing how far these products have come.

After the blizzard (over 5' of heavy snow!) our roof was sagging somewhat--it soon thereafter sprung back to normal (!). Amazing how resilient a building material wood is! (This house is about 23 years old).

I can believe that they would "over-engineer" finger-jointed rafters to overcome any obvious deficiencies.

Thanks again Homebild!

-k2 in CO

treebeard

01:10PM | 03/14/04
Member Since: 01/14/03
265 lifetime posts
There's fingerjointed lumber, and then there's fingerjointed lumber.

The material used in each is generally the same. What makes the difference is the glue used. The industry has standard markings (stamping) on the product that should clearly identify the piese as either appropriate for vertical loading only (stamped for 'stud'), or vertical and rafter (so marked...'stud & rafter').

To my knowledge, there is no fingerjointed material that is accepted or approved for joists, nor is will you find a marking or stamp to that effect.

joed

02:11PM | 03/14/04
Member Since: 09/17/02
527 lifetime posts
You need to check the markings as stated. I did not realize they made finger jointed structural lumber. I have seen finger jointed 2x4 marked as not for use as load bearing.


gwhitis

03:59AM | 03/15/04
Member Since: 03/09/04
2 lifetime posts
Thanks for the replies, folks. The studs are marked for vertical use only. The builder is using regular studs on all the inside door and window openings. He likes the finngerjointed studs because they are straighter. Gregory.
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