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Product Price Qty
Extension Slides - Wood - Max Opening of 26" (set)
Extension Slides - Wood - Max Opening of 26" (set) Item #29470
In stock
$29.99 Pack
Extension Slides - Wood 2-3/8" High- Max Opening of 50" (set)
Extension Slides - Wood 2-3/8" High- Max Opening of 50" (set) Item #29488
In stock
$49.99 Pack
Extension Slides - Steel - Max Opening of 26" (set)
Extension Slides - Steel - Max Opening of 26" (set) Item #29678
In stock
$79.99 Pack
Extension Slides - Steel, 2" High- Max Opening of 50" (set)
Extension Slides - Steel, 2" High- Max Opening of 50" (set) Item #29686
In stock
$139.99 Pack

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Extension Slides - 20" Length

The best built, largest opening and strongest slides!
Item #
84% of 100
Operates smoothly, prevents sagging or binding and allows a wide range of leaf openings. 20" slides are ideal for small rectangular tables. Gives maximum opening of 26 or 50". Generally the length of the closed slides should be at least 2/3rds the length of the closed table. Sold in pairs. Available in wood or steel.
(2) 20'' Extension Slides
More Information
Weight 14.8600
Hardware Type Extension Slides
4.2 / 5.0
55 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Did the job
Rebuilt a table and the slides wirk well.
January 23, 2019
over 2 years ago
Woodworking Experience:
Just right!
Our older table was sagging in the middle. We replaced the extension slides ourselves. It was easy, and now the table no longer sags and it slides easier too.
August 7, 2018
1 year ago
Woodworking Experience:
These were exactly what I needed! Very easy to install.
May 29, 2018
1 year ago
Woodworking Experience:
Great product
The slides were simple to install. I simply traced the outline of the old slides. Removed old slides. Measured depth of old screw holes. Marked and drilled new pilot bolts and secured with my screw gun. Sweet.
May 16, 2018
1 year ago
Excellent slides. Easy install and work great!
User submitted image
User submitted image
March 10, 2018
1 year ago
Woodworking Experience:
Works perfectly. Arrived swiftly. Good price.
January 30, 2018
1 year ago
Woodworking Experience:
Smooth slide action. great product. Screws are not included, I feel they should be.
December 10, 2017
1 year ago
Woodworking Experience:
Nice product
February 5, 2017
over 2 years ago
They worked perfectly. Easy to install and glidesmoothly.
January 3, 2017
over 2 years ago
Woodworking Experience:
Everything perfect. Fifty year old Vermont hard rock maple dining table reborn, as good as new.
November 25, 2016
over 2 years ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 29 questions Browse 29 questions and 49 answers
Why did you choose this?
Rockler Store
I'm making a new table and like the idea of these slides for the top. I'm going to use a Butterfly extension and had to buy that hardware from a different supplier since Rockler does not carry those parts.
Charles B on Aug 9, 2018
needed for broken slide.
Richard H on Jun 5, 2018
I'm making a new table and like the idea of these slides for the top. I'm going to use a Butterfly extension and had to buy that hardware from a different supplier since Rockler does not carry those parts.
Charles B on Aug 9, 2018
Same size slides on my table right now, nope they are 26"
ValricoJoe on Jun 29, 2018
needed for broken slide.
Richard H on Jun 5, 2018
Need a longer extension slide for my dining room table to accommodate a wider extension insert'
John B on May 17, 2018
Making a new table with a 17-3/4" leaf
James S on Apr 28, 2018
Good price over other suppliers
Leroy J C on Mar 30, 2018
Bought these to restor an antique oak table. Didn't want to make new slides from scratch and the originals are split/damaged.
Gordon B on Mar 18, 2018
Richard T on Mar 16, 2018
Our table needs new slides.i ordered these after reading customer reviews.
Joe L on Mar 5, 2018
Building a table
David T on Feb 5, 2018
needed for a project
Christopher E. M on Jan 28, 2018
To replace existing metal hardware that had rusted
Roger L on Jan 26, 2018
It was the smallest one that I could find.
James B on Jan 11, 2018
To replace a broken slide
Adrian P on Nov 20, 2017
I didn't, I choice 26" I checked a lot of times to make sure I got the 26".<br />I want the 26"
Richard S on Nov 19, 2017
replacement for broken ones, need them as soon as you can send them. I can't use my table
Larry K on Oct 30, 2017
We're building a dining room table and needed these items.
Judy P on Sep 15, 2017
I'm making a table with an 18" leaf.
Thomas P on Sep 5, 2017
They will fit the table we are modifying
Robert S on Jul 27, 2017
building a cherry table
Russell M on Jul 13, 2017
These will be used to replace failed wooden slides on a family heirloom.
Robert T on May 31, 2017
I'm building a walnut drop leaf dining room table for my daughter and I needed this size to complete it. I prefer wood over metal.
Garry S on May 13, 2017
hope they work as well as the existing one
Walter G on Apr 18, 2017
It fit my needs
Roy P on Apr 15, 2017
Perfe3ct slide for replacement on dinette set.
Peter M on Apr 2, 2017
write up very helpful as I am adding a 20 inch table leaf and this part opens up to 26 inches. Good flexibility to add extension without it being too tight.
Dennis on Mar 7, 2017
to support table top for project
Bruce K on Mar 1, 2017
needed for replacement of broken slides
Cindy W on Feb 25, 2017
Replace the broken ones on my 35 year old table.
Steven J on Feb 25, 2017
It was what I needed to complete a job.
David G on Jan 31, 2017
I prefer wood vs metal.
Bill on Jan 3, 2017
making a leaf in an existing table
W & J G on Dec 29, 2016
too add a leaf to a table
Jan S on Dec 22, 2016
Needed to make our everyday table suitable for large gatherings. Using two, I can expand our 9' table to over 15', seating 14+ people.
William B on Nov 29, 2016
top quality. dependable & you have it now.
Jim H on Sep 25, 2016
After carefull research I chose rockler slides so this would be the last time I would have to repair this large table
Mark O on Sep 10, 2016
As a replacement for a kitchen table.
Steve on Jul 28, 2016
Perfect size for the job needed. Rockler has always provided quality items at a good price.
Mark W on Jun 11, 2016
Replacing the wooden slides on an old oak split pedestal table. The table has three 11" leaves so I needed the larger capacity.
James C on Jun 4, 2016
for a customer
Bill on May 18, 2016
We are making a small table and hope these will be just what we need.
Sharon H on May 9, 2016
Because the old one broke!!!
Jimmy R on May 5, 2016
my old ones broke
Dennis F on Apr 27, 2016
I need it
John H on Mar 30, 2016
Really a mistake because you do not handle or provide mounting screws! Your people recommended McFreely and they will only sell by the box for $76. Good luck for 8 screws!
Bobby J on Mar 17, 2016
It will allow me to build a pull-out table beneath a preparation area countertop.
David O on Mar 4, 2016
rebuilding an old table and need these to replace the broken slides
Kurt B on Mar 3, 2016
For a heavy butcher block dining table I built
John E B on Dec 17, 2015
best price, order through Amazon
James W W on Dec 6, 2015
good price
Bob M on Nov 16, 2015
Same size slides on my table right now, nope they are 26"
ValricoJoe on Jun 29, 2018
Need a longer extension slide for my dining room table to accommodate a wider extension insert'
John B on May 17, 2018
There were no instructions with these slides and the technical download mentions figures that are not on the sheet and so are of little value to me. Are there installation instructions for these extension slides? Very disappointed that instructions were not included.
Carol H on Jun 9, 2016
BEST ANSWER: I have built dozens of extension tables and these are pretty simple to install. You have to make sure that they are installed perfectly parallel and square to each other. Also if you're using solid wood you have to allow for shrinkage by opening them about a quarter of an inch before you screw them down. If you don't allow the space Aagap will form in the center
Where do I get detailed information on dimensions and mounting ?
A shopper on Apr 17, 2015
BEST ANSWER: If you go to our home page at and enter the term "extension slides" in the white search bar at the upper right-hand corner of the page you will see all of the available styles of slides .

If you then scroll down the product page you will see three banners on the right side of the page. Under the third, "Technical Downloads", banner you will find the drawings and dimensions for each product.
The table I have measures 42" closed, with the leaf is 18", thus the table width is 60" with the leaf installed. What slide is the proper size for my table?
ValricoJoe on Jun 26, 2018
BEST ANSWER: The general rule of thumb is the length of the slide should be 2/3 the length of the table closed with no leafs in it. So you have 42" closed without the leaf. The 20" slide would be too small. The 36" will work if you have enough room between the shirt boards under the table.
I have a 96" farmers table I want to cut down to 72", giving me a 24" leaf. What length metal slides do I need?
A shopper on Jul 15, 2015
BEST ANSWER: the slides will have to be longer than the leaf 24" would be the shortest I would go but a little longer is nice you may need a little extra room for alignment clips or rods if you are using them use at the very lest slides that are at least 27 inches
do you sell the slider "keys" that fit into the grooves of these sliders?
carl b on Aug 16, 2017
BEST ANSWER: Sorry, we do not
Am wanting to make an expandable table inside an old tv cabinet with only 20" of depth. Can that be accomplished with a 20" slide?
Lucy H on Apr 25, 2017
BEST ANSWER: Maybe clarify a little. TV case as a Table? Or inside a table as it reads. I just guessing but if tv case wall is the intended box or base, which the slides would go in and out of (which when closed would be more hidden in the base...correct?) you would need to cut out 3" x 2" sections in 4 places for the slides to operate. Retracted they are longer than 20" it's when fully opened the provide a 20" leaf opening.
Hope that helps
I have a 42" round table with 2 12" leaves. Can you tell me what size slides would work? Thanks
Leif E on Apr 3, 2018
BEST ANSWER: I measured the ones I was replacing. So watch out about getting your replacement ones. I ended up short changing myself and had to trim a half inch off one leaf to fit them all in.
Are they sent in pairs or do I have to order 2?
daniel r on Aug 10, 2017
BEST ANSWER: This product is sent in pairs.
SAL A on Dec 21, 2015
BEST ANSWER: I received a pair of slides.......enough for the table I was building. They worked really well.
I have a table that is too big, I would like to cut it down to a square. I want to keep about a 12"-15" piece for a leaf. Can I get a smaller track than 20" if I go for the 12" leaf? I won't know until I do it.... I love this table! Don't want to ruin it!
Cricket on Oct 22, 2015
BEST ANSWER: My search found 20" about the smallest. My closed table was 36" & the slides provided room for 2 twelve inch leaves
I am using a solid tree 2" thick table top. What is the weight this extension slide can accept?
Carlos P on Oct 30, 2017
BEST ANSWER: I'm not sure of the weight......but with something that thick I don't think this is going to work....I going with the metal extension slide
What is the thinner slide you got? 2""? Need to make an expandable table top, but need to ge the thinnest of slides. Can you help? . Thank you.
Carlos P on Aug 6, 2017
BEST ANSWER: needed 21 inches to accommodate the leaves that came with the table. The extensions were mounted underneath the and therefore their width was not a factor. I ordered from their catalog. Hope this helps.
Looking at item #29488 (wood extension slides) max. opening of 50 in. What is the CLOSED length of these slides?
Marvin M on Aug 4, 2017
BEST ANSWER: Closed this item is 20" long
I have a table that is 62" closed and have 2 leafs at are 20" ea. to make 102" opened witch one would be good ? I am looking for Steel
Rob G on Mar 21, 2017
BEST ANSWER: make sure it is 40" plus open that you buy don't use wood ones the operate loose
I have a Jefferson Woodworking slide for my table, which moves broke, by not taking the extensions out. How do I measure which set to buy to replace my extension slides? Thanks Cathy Snow
Cathy on May 2, 2019
BEST ANSWER: Not sure how you would do that. Maybe someone at Rockler could help you get the right measurement.
I have an old oak 48 inch round pedestal table, that opens to accept six 8 inch leaves to create a 96 inch oval table. The pedestal does not separate and there are helper legs at both ends, to support the table top. The slides are completely worn out, making changing the table size very difficult. Would your item #29488 work to replace the slides, or do you have a different item that would work better?
Bill K on Apr 29, 2019
BEST ANSWER: Probably. Compare the length and height of the old slides to the new ones. If they are close they should work. I think length would be the critical dimension
I would like to turn a half a wall in my kitchen into a bar/extendable table would this work?
Nelle225 on Mar 14, 2019
BEST ANSWER: Without seeing your plan I can say it would extend the table, but there’s nothing to lock it in place. They’re nice and smooth and easy to extend but it’d need something to keep it steady. Hope that helps.
I have a 60" table with 3 12" leaves. Would your 50" slider work for this table? Would you recommend the wood or metal sliders?
charlie on Oct 15, 2018
BEST ANSWER: My table is 42” in closed position. When open fully, it accepts two 36” leaves. I ordered the wrong extensions, would only open enough to accept one leaf. Went to a Rockler store with my measurements, they said they had nothing that would fit. Checked two or three other woodworker internet sites, same answer. My problem is the space available underneath my table when closed. I’m still looking for a solution. Don’t know anything about metal extensions. Sorry I couldn’t help you.
the wood sliders i have are broken and measure 26 in each segment, table has 2 12 in leafs, the total length of table with leafs installed is 89 in, what replacement should get ?
Joseph R on Jun 17, 2018
BEST ANSWER: the website shows item # 29611 to be a 28" set of slides. the description says that it will accommodate (2) 12" leafs. If you want more room, just in case, the 38" set will open enough for (3) 12" leafs.
Why is there a right and left side on the table slides? How do you determine which is right side and left side of table?
Mary H on Mar 4, 2018
BEST ANSWER: The outside will be the solid side
I have an island in which I want to install a pullout leaf/ledge. The island is only 14 inches wide, and the ledge I want to install will be 12 inches wide and 6 feet long. Can the 20 inch wooden slides be cut down to accommodate the smaller length?
Antonio on Jan 28, 2018
BEST ANSWER: nope, not without a lot of pain and suffering
I have an old oak table with 4 legs and will cut it down to 72" length and want slides to add 12" leaf to make table 84" in length. What size slides do I need?
Ron R on Sep 21, 2017
BEST ANSWER: The 20" slide would certainly work. I don't know if they make a shorter one but you only need 12" and it doesn't hurt to extend farther than what's actually needed.
how do I measure to determine the length I need. measure the width of the two leafs or the length of the hardware under the table?
wayne t on Jul 22, 2017
BEST ANSWER: You will need to measure the table length without the leaves.
This product works best if the closed size of the table slides is 2/3 the length of the above measurement (example: the table is 54" without leaves. You would need a 36" long slide).
I bought this round table many years ago (36) came with 1leaf. Since then, we had to change the extention slide to accommodate 8 children, & a growing family. Now, all are married except 1 and we want our table to be round again. We no longer have the original sliders...and the ones that are on now will not allow our table to be round. The original leaf is in ...and that's as small as we can make it. We want to change to smaller extention sliders ... to make our table round again & still allowing room to add the 1 leaf if we want to. Which one of your products will most likely work?
Sylvia R on Jan 25, 2017
BEST ANSWER: I used the metal extension slides and everything has worked out great. They were easy is install and it did not take very long to make the change.

John D.
I have an extension table with two assemblies of 9 sliders (16 "... two fixed end, plus 7 movable) on which one of the dovetails is damaged. How do you disassemble a slider assembly to replace the damaged part?
Jaguar on Jan 1, 2017
BEST ANSWER: Easiest way is to replace the slider.
I have one original slide on my square table. It measures 27.5" when closed. When leaf is in expanded with leaf installed slide measures 45.5". What size slide should I purchase?
Sher4055 on Feb 17, 2016
BEST ANSWER: It appears to me that your present slide opens 18" so the Rockler 20" slide probably be just fine.
Can the extension slides be used to support a flip top table? My thought is to build a table, then "extra" two legs and a skirt and attach them to the end of the extension. The extension would be pulled out (it would be supported by the two legs) then the top unfolded ("flipped" over) so it rests on the extension. Any issues?
Beau S on Jun 28, 2018
I'm building a country kitchen table and want my extensions to be on the ends. I'm using breadboard ends. How big do I need to make the breadboards to have a secure connection to pull out? I want to put 12 in extensions on both ends.
Michael L on Dec 27, 2017
will the 20 inch extenders actually open to 62 inches.? I have a pedestal round table with 25 inch extenders that has done the job.
james c on Nov 25, 2017
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Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to