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Would you include corner braces for the seat to rest?

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Forum topic by Mcpowell posted 07-12-2018 01:55 PM 1023 views 0 times favorited 13 replies Add to Favorites Watch
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Mcpowell

45 posts in 1066 days


07-12-2018 01:55 PM

I drew the plans for these chairs based from a chair I saw on youtube. I did not have the original plans, so I don’t know if these should have corner braces. There are a total of 8 chairs.

I am to the point where I have the back and the fronts glued together, but the sides are only dry fit. I haven’t built the slip seat yet, but plan to cut them out of a nice plywood, and then my wife will pick the fabric/upholstery.

I feel like I should add corner bracing for both structural (lateral) strength and to give the slip seat a little extra support. I would make the corner braces from walnut to match the chair. Do you think the corner braces are necessary? If yes, corner braces on the back and front, or just the back?

Also, if using corner bracing, would you fasten the seat to the corner braces, or just let the slip seat rest on top? There is a 1/4” rabbit on the front and sides so the seat will be recessed.

-- I want to be good


13 replies so far

View Redoak49's profile

Redoak49

3605 posts in 2165 days


#1 posted 07-12-2018 02:05 PM

I would add the braces just to insure structural strength.

View martyoc's profile

martyoc

44 posts in 1093 days


#2 posted 07-12-2018 02:44 PM

You ought to add the braces. My first set of chairs did not have them and depended only on the mortise-tenon fit. After a few years these began to loosen. They weren’t “grand-kid” proof. The braces are relatively easy to do but be sure the fit to the sides is good. I fasten the seat to the braces since it is convenient.

-- Marty O'C

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bandit571

21548 posts in 2860 days


#3 posted 07-12-2018 02:49 PM

Can even be like these….Add a hole in each, to fasten the seat.

-- A Planer? I'M the planer, this is what I use

View Mcpowell's profile

Mcpowell

45 posts in 1066 days


#4 posted 07-12-2018 03:15 PM

Okay, thanks for the quick responses.

I’m convinced. I do think I’ll proceed with getting all the glue-ups, and then I’ll measure the angles with my protractor so the angles will fit nicely.

Y’all know this is going to add a weekend to my completion date…..

-- I want to be good

View pintodeluxe's profile

pintodeluxe

5785 posts in 2990 days


#5 posted 07-12-2018 05:27 PM

1+ on corner braces. Pre-drill and counterbore the braces before installation. That way you can screw the slip seats in place from underneath.
Here’s a blog I wrote about attaching slip seats, and corner braces… http://lumberjocks.com/pintodeluxe/blog/35632
In that example we used threaded inserts, but I think plain ‘ol screws work fine too.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View CharlesNeil's profile

CharlesNeil

2454 posts in 4047 days


#6 posted 07-12-2018 05:36 PM

Having done more chairs than i care to count, ( hundreds)
absolutely
I do mine just like Bandit did, also provides a means of attaching the seat .

View Bishop78's profile

Bishop78

14 posts in 192 days


#7 posted 07-12-2018 05:47 PM

No going around that. The chair won´t last without, even if it looks and feels structurally sound.

View MrRon's profile

MrRon

5149 posts in 3420 days


#8 posted 07-14-2018 08:53 PM

How will you account for people leaning back on their chair, putting stress on the back M&T joints? Corner braces certainly can’t hurt. I think it is a good idea.

View jonah's profile

jonah

1877 posts in 3475 days


#9 posted 07-14-2018 10:33 PM

+1 to corner braces. Takes a little time but chairs always, always take a ton of abuse.

View Mcpowell's profile

Mcpowell

45 posts in 1066 days


#10 posted 09-06-2018 02:57 AM

Just to follow up, here is what I came up with. There is a groove, 2 screws, and glue for each corner brace. There are 8 chairs.

Thanks for the advice.

-- I want to be good

View CWWoodworking's profile

CWWoodworking

184 posts in 355 days


#11 posted 09-06-2018 03:06 AM

I Would also do corner blocks or braces.

I would also use perelli(spelling?) webbing for the seat. This allows for the seat to give a little more. It creates a better feel and will prolong the life of your foam.

I believe perelli is a brand name. There are other manufacturers.

Stuff is expensive.

View ChefHDAN's profile

ChefHDAN

1142 posts in 3026 days


#12 posted 09-07-2018 07:42 PM

Well DAUM! those are some awesome looking chairs love the figure in the splats, please be sure to post when finished …

-- I've decided 1 mistake is really 2 opportunities to learn.. learn how to fix it... and learn how to not repeat it

View Mcpowell's profile

Mcpowell

45 posts in 1066 days


#13 posted 10-16-2018 02:40 AM

Finished chairs in the project section:

http://lumberjocks.com/projects/397825

-- I want to be good

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