LumberJocks

Walnut Dining Room Table

  • Advertise with us
Project by Mark Kornell posted 05-04-2015 01:33 AM 2837 views 18 times favorited 24 comments Add to Favorites Watch

I was commissioned to build a walnut dining room table for a client. She had some fairly specific requirements which made this a bit of a challenge.

Requirement #1: 8’ long extensible to 10’
Requirement #2: No center divide, extensions must come from the ends
Requirement #3: Extensions must store inside the table
Requirement #4: Use this specific design (hers) for the legs

Needless to say, this took a bit of engineering to come up with a package that worked. First, the legs are only 2” thick. There isn’t enough bearing surface to counter end-to-end racking forces. The solution was to have T-shaped metal brackets fabricated that I mortised and epoxied into the top of the legs. The brackets are bolted into the apron structure

Second, because of the need to have 12” extensions that pull out from each end, the normal position for the legs would interfere with whatever this pull-out mechanism would be.

Third, the extensions needed to fold in half to store inside the table. The client wanted an underbeveled edge, meaning that I could not have a single-piece pull out (or flip-out) extension.

So, I ended up building the apron so the end would pull out, and contain a butterfly leaf assembly. The apron end would also form the support for the butterfly leaf when pulled out, so it could not collapse when in use.

I had prepared an animated GIF to show how it works, but apparently I can only embed JPEGs. So, here’s the sequence:

The edge of the slab is underbeveled, so to carry that around the ends while accommodating the “drawer” I made a removable end cap, held on by magnets.

Easily removable when the extension is needed, it stows to the right side of the apron under the top.

Overall dimensions are 96” x 43 13/16”W x 29 1/2” (LxWxH)

The primary wood is walnut, with hard maple as the secondary wood in the apron structure. The legs are walnut veneered onto beech. I cut the veneers from the same flitch of boards that were used in the rest of the table so I was able to maintain consistent color and grain.

Because of the grain orientation of the butterfly leafs, I also used shop-sawn veneer on baltic birch plywood to ensure they remained stable.

The finish is Varathane Nano-Defence, satin sheen.

-- Mark Kornell, Kornell Wood Design





24 comments so far

View CL810's profile

CL810

3450 posts in 2451 days


#1 posted 05-04-2015 02:24 AM

Beautiful and ingenious Mark. I’m sure the client was very happy.

-- "The only limits to our realization of tomorrow will be our doubts of today." - FDR

View SuperCubber's profile

SuperCubber

868 posts in 1747 days


#2 posted 05-04-2015 02:27 AM

Wow! That is one heck of a good idea! Great ingenuity! I’d like to say that I may copy that idea some day, but I don’t think I’m capable! :)

-- Joe | Spartanburg, SC | "To give anything less than your best is to sacrafice the gift." - Steve Prefontaine

View johnstoneb's profile

johnstoneb

2143 posts in 1635 days


#3 posted 05-04-2015 02:43 AM

Beautiful table

-- Bruce, Boise, ID

View CFrye's profile

CFrye

8740 posts in 1302 days


#4 posted 05-04-2015 03:13 AM

I understand the beautiful end result, Mark. Thanks for sharing.

-- God bless, Candy

View JADobson's profile

JADobson

681 posts in 1574 days


#5 posted 05-04-2015 03:14 AM

This is brilliant. I’m very slowly working on my own kitchen table and I think this leaf system may be incorporated in if you don’t mind. Well done!

-- James

View RoadHogg's profile

RoadHogg

124 posts in 1390 days


#6 posted 05-04-2015 03:25 AM

Wow! Now that’s some engineering work right there! Nicely executed, Mark.

-- "The difference between school and real life is that in real life the tests come first, and then the lessons" -- Robert Lang, ReadWatchDo.com

View Mark Kornell's profile

Mark Kornell

1061 posts in 1993 days


#7 posted 05-04-2015 06:32 AM

Thank you for the comments!

James, feel free to copy. It’s kinda flattering :-) And ask questions if the pics aren’t clear – it was a brainteaser to figure out. Fine Woodworking has an article by Michael Fortune a couple.years ago on the butterfly leaf concept which was very helpful. Adapting that to a pull-out extension was a manageable step.

-- Mark Kornell, Kornell Wood Design

View Mark Kornell's profile

Mark Kornell

1061 posts in 1993 days


#8 posted 05-04-2015 06:46 AM

I had a question via PM on the finish, so I’ll share some more info here.

The Varathane Nano-Defence is meant for flooring application. Meaning, it should be tough and durable. I did a couple of test pieces and it seems to be tougher and more scratch resistant than polyurethane.

It is fairly thin, more so than lacquer or poly. But it takes about the same amount of time to flash as does water based polys. This means a propensity to runs and/or sags when applying vertically.

When brushing, it flows out well, but not well enough to make a production surface. So my approach was to brush on two.coats, sand at 220, spray two coats, sand at 320, and then spray a final coat.

And when spraying, it is a very fine line between too much (runs/sags) and too little (dry spray). I ended up having to spray the top flat in order to get enough on without running.

-- Mark Kornell, Kornell Wood Design

View Buckethead's profile

Buckethead

3140 posts in 1331 days


#9 posted 05-04-2015 12:01 PM

Yet another masterpiece, Mark. Love your work!

She needs to commission a new set of chairs to match. :-)

-- Support woodworking hand models. Buy me a sawstop.

View JayT's profile

JayT

4777 posts in 1674 days


#10 posted 05-04-2015 12:48 PM

Masterfully done, Mark. You definitely earned your paycheck.

-- "Good judgement is the result of experience. A lot of experience is the result of poor judgement."

View helluvawreck's profile

helluvawreck

23157 posts in 2329 days


#11 posted 05-04-2015 01:00 PM

Mark, you really did a fine job on this table.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View david38's profile

david38

2517 posts in 1806 days


#12 posted 05-04-2015 01:45 PM

nice table

View EvilNuff's profile

EvilNuff

60 posts in 2090 days


#13 posted 05-04-2015 01:50 PM

Love the leaf design, any chance you have more pictures of how it works? Thanks for sharing!

View tpmwoodworker's profile

tpmwoodworker

19 posts in 666 days


#14 posted 05-04-2015 02:21 PM

Really nice. I love the hinge work on the extension. Really inspired.

-- Newcomer to Woodworking, Looking to Learn More

View pintodeluxe's profile

pintodeluxe

4854 posts in 2276 days


#15 posted 05-04-2015 03:51 PM

Great use of butterfly leaves, I don’t think I have ever seen those on the end of a table.
Beautiful piece!

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

showing 1 through 15 of 24 comments

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com