Cherry Dinning Table Top - warp prevention - Woodworking Talk - Woodworkers Forum
 2Likes
  • 1 Post By Teri M.
  • 1 Post By Steve Neul
 
Thread Tools Display Modes
post #1 of 10 Old 09-03-2018, 12:20 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 8
View Teri M.'s Photo Album My Photos
Hello Everyone. I'm looking for advice on how to prevent my 7 x 5 x 7/8" Cherry table top from warping. I would like to avoid putting a trim or bread boards on the ends for esthetic purposes. I have two cross supports underneith where the x shape legs attach. Because the legs are x shape I opted out of a skirt as well. So, I was wondering if I added a waterfall type border on either short end and put a screw in each border if that would be enough. The board widths between 1 3/4" - 4.5". So essentially I would have a flush board running under just the 5' sides of the table. If I did this how thick would that support need to be to prevent warping?

Any advice greatly appreciated.

Last edited by Teri M.; 09-03-2018 at 01:07 PM.
Teri M. is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 09-03-2018, 12:29 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 8
View Teri M.'s Photo Album My Photos
I'm just realizing that the term " waterfall" edging is company specific and might not mean much to the woodworking community. I would be adding a flat 90 angle piece under and flush to the table ends the rounding down the top lip of the table edge. Hope that's more clear.
Teri M. is offline  
post #3 of 10 Old 09-03-2018, 12:55 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 8
View Teri M.'s Photo Album My Photos
Pics
Attached Thumbnails
Click image for larger version

Name:	20180903_104144_1535990058555.jpg
Views:	37
Size:	182.5 KB
ID:	365658  

Click image for larger version

Name:	20180903_104202_1535990115671.jpg
Views:	37
Size:	184.7 KB
ID:	365660  

Roybrew likes this.
Teri M. is offline  
Sponsored Links
Advertisement
 
post #4 of 10 Old 09-03-2018, 12:58 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 8
View Teri M.'s Photo Album My Photos
Here are some pics...
Attached Thumbnails
Click image for larger version

Name:	20180903_104144_1535990224320.jpg
Views:	28
Size:	182.5 KB
ID:	365662  

Click image for larger version

Name:	20180903_104202_1535990248120.jpg
Views:	34
Size:	184.7 KB
ID:	365664  

Teri M. is offline  
post #5 of 10 Old 09-03-2018, 01:10 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 8
View Teri M.'s Photo Album My Photos
Type of edge I'm considering
Attached Thumbnails
Click image for larger version

Name:	Screenshot_2018-09-03-12-08-56_1535991030027.png
Views:	36
Size:	58.6 KB
ID:	365668  

Teri M. is offline  
post #6 of 10 Old 09-03-2018, 06:18 PM
Senior Member
 
Join Date: Sep 2011
Posts: 25,991
View Steve Neul's Photo Album My Photos
Most of the time warpage is caused by an imbalance in moisture content from one side to the other. It would help if when you finish the table you finish the underside too. It doesn't have to be the same quality finish as the top but the underside needs to be sealed.

The width of wood is going to expand and contract. What ever you do be sure to allow for this movement. The supports where you screwed the legs to the top if it is screwed too firmly down you can cause the top of the table to split. The mounting holes need to be elongated and use pan head screws with washers and not torque them down too tight. This would allow the wood to shrink if it needs to.

Without a skirt you are kind of at the mercy of the wood and gravity as for as warpage. The main purpose of a skirt is for warpage issues.

The waterfall ends you illustrate in post 5 will need to be end grain wood on the ends of the table. It's a mistake to glue wood together in perpendicular direction. If you glue a piece of wood under the top with the grain running crosswise when the top shrinks the wood will split.
difalkner likes this.
Steve Neul is offline  
post #7 of 10 Old 09-04-2018, 08:04 PM Thread Starter
Junior Member
 
Join Date: Sep 2018
Posts: 8
View Teri M.'s Photo Album My Photos
Thank you. I had considered cutting a smallerstrip off along either end and just flipping it underneath so the grains were running the same way. Do you think that would make a difference in the long run or am I better off just leaving it as is?
Teri M. is offline  
post #8 of 10 Old 09-05-2018, 10:01 AM
Senior Member
 
Join Date: Jan 2010
Location: NW Pa
Posts: 2,897
View TimPa's Photo Album My Photos
the 2 enemies are unbalanced finishing and cross grain situations. as mentioned, finish both faces equally. and until you get it finished, do not lay it flay on a floor, table, etc. keep the air flowing all around it.


the waterfall is a cross grain as well as the top member of the leg system. the center attachments/screws can be secured, but all other need to be slotted. cutting the end off and flipping it under would help the waterfall end you want by eliminating the cross grain.
TimPa is offline  
post #9 of 10 Old 09-05-2018, 10:20 AM
Smart and Cool
 
Join Date: Feb 2014
Location: Oklahoma
Posts: 1,745
View shoot summ's Photo Album My Photos
I'd reconsider the waterfall edge, where else on that table do you have that design element?

IMO it is not complimentary to the design, you have blocky, squared, angled design elements, it would be better to stay in that family IMO.
shoot summ is offline  
post #10 of 10 Old 09-05-2018, 08:10 PM
Senior Member
 
Join Date: Sep 2011
Posts: 25,991
View Steve Neul's Photo Album My Photos
Quote:
Originally Posted by Teri M. View Post
Thank you. I had considered cutting a smallerstrip off along either end and just flipping it underneath so the grains were running the same way. Do you think that would make a difference in the long run or am I better off just leaving it as is?
It won't help a thing as far as stopping warpage. It will just change the appearance by making the top thicker.
Steve Neul is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Woodworking Talk - Woodworkers Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Oak table with table leg wedge joint and brass details Christian S General Woodworking Discussion 13 07-09-2017 04:58 PM
Cherry coffee table dreamiurg Project Showcase 5 09-29-2016 02:40 PM
Fixing damaged paint of dinning table with wood veneer ls00722 Wood Finishing 3 08-22-2016 10:28 PM
Wolfcraft 6157 router table. dbhost Tool Reviews 2 10-02-2015 08:22 PM

Posting Rules  
You may post new threads
You may 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 Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome