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Damstom 38'' Panel Clamp

Sandwiches large, thick panels to hold them flat while drying—no bowing when pressure is applied!
Item #
74% of 100

Get perfectly flat panels every time with the Damstom Panel Clamp. With its two straight, parallel bars adjusted to firmly sandwich the panel, you'll completely eliminate the problem of glued panels that buckle and bow under pressure. This makes it an excellent solution for table tops, wide door panels and thick bench tops. Tool-free knobs allow you to adjust the parallel bars to clamp panels from 3/4'' thick to a massive 4-1/2'' thick. Plenty of clearance for the handle makes it easy to wind the clamp closed. Constructed from steel with a powder-coated blue finish and rugged Acme thread.

(1) Damstom 38'' Panel Clamp
More Information
Brand Damstom
Manufacturer Part Number SJD-0300-BLU
Weight 4.4500
Tech Spec
  • Opening Capacity: 38''
  • Maximum Panel Thickness: 4-1/2''
  • Material: Powder-coated steel
3.7 / 5.0
129 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Dams trim panel clamps
Work great
March 14, 2020
1 month ago
Woodworking Experience:
Great clamps for large projects
Easy to keep panels flat while glueing them up.
February 9, 2020
4 months ago
Woodworking Experience:
I already had 2 of these clamps. I decided to do a 10.5' table top so I needed 2 more clamps. These work wonderfully to keep a flat surface when clamping several boards together.
December 29, 2019
3 months ago
These work great
December 26, 2019
4 months ago
Woodworking Experience:
Good Clamp but wait for a sale
Useful panel clamp
December 16, 2019
4 months ago
Woodworking Experience:
Must have clamps for all wood working projects
Very happy with my purchase of these panel clamps. Work great and make glue-ups a breeze. Purchased 2 and I am going to pick up 2 more.
December 15, 2019
4 months ago
Woodworking Experience:
it works perfect
November 25, 2019
4 months ago
Woodworking Experience:
Very nice, thanks
November 20, 2019
4 months ago
Woodworking Experience:
quality primary shop tool/can be transfered to jobsite for cabinet work
wish this tool had been available 50 yrs ago when i became a
carpenter/retired now/ with the high cost of lumber/you can turn
scrap into cash. joe
November 13, 2019
over 2 years ago
Really great clamps, gluing panels is a lot easier and no cupping. Awesome!!
November 1, 2019
6 months ago
Woodworking Experience:
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 14 questions Browse 14 questions and 87 answers
Why did you choose this?
Rockler Store
Parallel clamps work mostly but some glue up need more ie cawls! I will try these.
Joel H on Feb 14, 2020
My brother wanted two for Christmas. I accidentally only ordered one. So this is the second order.
David P on Dec 31, 2019
Parallel clamps work mostly but some glue up need more ie cawls! I will try these.
Joel H on Feb 14, 2020
Helpful with panel glue up in my shop. Light but rigid enough to keep things flat.
Seanan M on Jan 15, 2020
My brother wanted two for Christmas. I accidentally only ordered one. So this is the second order.
David P on Dec 31, 2019
For clamping table tops & benches to prevent bowing or movement while gluing.
Jason N on Dec 24, 2019
E A A on Dec 24, 2019
Gift for a friend
Teri L on Dec 22, 2019
Looks like would be a good tool for my shop as I do a lot of gluing wood together.
Eddie P on Dec 22, 2019
Reviews and needed a solution for live edge panels
Donny S on Dec 21, 2019
unique clamp that fits needs for several future projects
Todd B on Dec 19, 2019
Dad wanted it.
Josh H on Dec 16, 2019
Always had trouble getting my panels flat. This looks like a great solution! Can't wait to try them. I like the Rockler blue too. Of course on-sale is even better!
Michael J on Dec 4, 2019
A Christmas gift for my son. Think its very important when clamping pieces together to keep the surface flat, level.
O N on Dec 4, 2019
I have one of these, and needed a second one to make it work
Michael H on Dec 3, 2019
Cabinets I am having to make
IVAN M on Dec 1, 2019
I've had problems trying to keep my jointed boards from bowing.
DAVID S. on Nov 30, 2019
I do a lot of panel glue ups.
Dan B on Nov 30, 2019
Tried to make saloon doors and they wasn’t flat after glue up
Gale H on Nov 30, 2019
Son asked for it as gift
Diane F on Nov 30, 2019
Need flat glued up panels
William M on Nov 30, 2019
Tired of panels bowing when clamping
Gary L on Nov 30, 2019
My husband wanted it for Christmas!
Jamie J on Nov 28, 2019
Husband wants it
Danielle F on Nov 27, 2019
In the process of building a blanket chest... need to keep panels flat!
James H on Nov 25, 2019
Needed another one.
James G on Nov 22, 2019
I've only one, need two, one won't do.
LARRY M on Nov 21, 2019
I work with wine barrels last tops hat Ned to be separated and glue back together without bowing.
Brad D on Nov 18, 2019
Looks like a good product for my needs.
Don on Nov 17, 2019
Hoping to make flatter panel glue ups....
Michael F on Nov 16, 2019
Laminate wood together
James S on Nov 15, 2019
Frustrated trying to get flat panels. This should make them perfect!
Michael S on Nov 13, 2019
Reviews online
Charles S. on Nov 12, 2019
I am a disabled veteran and I make wooden American flags. These clamps will make it easier to flatten the stripes while gluing.
Danielle T on Nov 8, 2019
I make a lot of end glue up projects and this seems like the perfect tool to streamline processes.
Joshua Facteau O on Nov 4, 2019
Gluing up some bigger panels need to keep them flat
Daniel W on Nov 3, 2019
you had a good price on a tool that i could really use
Dennis A H on Oct 28, 2019
Making a lot of tables lately
Michael J on Oct 10, 2019
I need to keep my panels from bowing when gluing and clamping.
Robert M on Oct 3, 2019
hope it works to keep boards flat and even
Leonard T on Sep 27, 2019
building panels for multiple benchtops & desktops.
Bryan T on Sep 20, 2019
This item is a great help to keep the twist and bow out of my glue ups while drying, regular clamps cant do that.
Alan W on Sep 19, 2019
need to keep panels flatter while gluing
Matthew P on Sep 16, 2019
I need these clamps to clamp panels together.
Morris J on Sep 16, 2019
Need clamps that keep a project, FLAT while gluing.
Rik W on Sep 15, 2019
worth a try to help keep glue ups flat.
James G on Sep 10, 2019
tired of shifted planks while making panels
brock d on Sep 8, 2019
We do quite a few glued up table tops of all sizes. This should help keep glue ups flat and true.
Cliff on Sep 2, 2019
To prevent bowing while joining for raised panels to be correctly and uniformly routered.
Carl W on Aug 11, 2019
wanted a 4th panel clamp. They are great for keeping the project flat and straight
John K on Jul 6, 2019
I have 2 of these and I love them! Will be nice to add one in the middle for longer panels.
Tatiana L on Jul 2, 2019
Building a kitchen table. These should help me make sure the surface is flat and without lips from board to board.
James M H on Jul 1, 2019
Helpful with panel glue up in my shop. Light but rigid enough to keep things flat.
Seanan M on Jan 15, 2020
For clamping table tops & benches to prevent bowing or movement while gluing.
Jason N on Dec 24, 2019
What differences, if any, are there between the Damstom D300 Black Edition Panel Clamp (38 inches) clamp and the Damstom clamp offered exclusively by Rockler? We have the obvious Rockler-blue, but is the material the clamp is constructed of different? What about coating / finish?
Jay A on Jan 12, 2016
BEST ANSWER: The difference, other than the color, is the knobs. The knobs on the Rocker are plastic with a metal thread while the original Damstom Black clamps have metal knobs with a metal thread.
what holds down the opposite side from the clamp. ? does not look like there is a clamp there ??
ROBERT S on Nov 8, 2015
BEST ANSWER: There are two square vertical post with a stop on one side. Shown on the far side of the image. Place them at the far end of the wood you wish to clamp. The turn the adjustable clamp handle to tight and add pressure to the gluing wood. The clamp is also adjustable for different thickness wood. I have used the clamp several times and I am very happy with it.
How many total clamps are in the package? Does it come with just one clamp or two?
Terry B on Oct 30, 2017
BEST ANSWER: the price is for 1 clamp/ u need a minimum 2/i own 3 which handles just about anything i might run into/top
quality primary shop tool. joe/carpenter/50yrs/ret.
What is the max spacing of these clamps?
Duane H on Dec 4, 2015
BEST ANSWER: I have found that in a normal kitchen panel of 29" to 30" long
I have used one per foot with cull's. But with three or more board as in a butcher block top or cutting board I would go with one every 10" with cull's
Hi how much downward pressure do they provide?
Paul C on Mar 11, 2016
BEST ANSWER: Not as much as I would like to see. I always need to add a clamp at the back of the clamp to hold the
bars together and still not satisfied. Easier to use than the 2-way pressure clamp but like them better.
If you do a lot of edge gluing of long or wide material would not recommend.
Is both top and bottom parts considered 1 clamp ?
Brent C on Jun 4, 2016
BEST ANSWER: There are the 2 pieces in the kit. it clamps very well horizontally, but he back side needs 2 small clamps in the back to keep it nice and tight. Also if glueing up cutting boards you have to do alot of work to do to remove the glue squeeze out after you remove the clamps and if the piece is wide you will need a center clamp.
Does glue stick to the clamps?
Daryl R on Nov 13, 2019
BEST ANSWER: I used my clamps just today on a sideboard build, and strangely, ended up with a lot of squeeze out, literally all over my three clamps. Usually, I am quick to wipe off the squeeze out but got distracted today on a phone call for about an hour. Coming back to the build I found the hardened squeeze out running up and down my clamps. With a little warm water and a piece of orbital sandpaper (turned upside down) I easily removed the dried glue. Kind of like using a chisel but without a sharp edge. Truly these clamps are a brute and I love them completely. They clean up from most everything but certain stains, so be careful there. Otherwise, glue (typical woodworker's) isn't a problem at all. Great product. I have 8 of them now.
is this for one clamp or a pair of clamps?
Don H on Sep 28, 2018
BEST ANSWER: I purchased two clamps. A clamp consists of 2 bars , a screw device and a square backing pin.
Just ordered 3. I'll have them in 3 days. Has anyone had issues with not putting enough down pressure? I make American flags and just hoping these cross bars dont bend.
PEKOP on Dec 10, 2019
BEST ANSWER: Cross bars won’t bend. I use these to make tables. Only problem. Make sure you use scrap pieces at each end. Will leave a in dentation on project when tighten. Also don’t over tight do each clamp turns equally at same time. Hope this helps.
Are they made in the USA?
Christopher F on Jul 13, 2019
BEST ANSWER: These clamps are made in Canada. They work very well.
are there longer Damstom clamps? can they be extended?
Scott A on Oct 19, 2016
BEST ANSWER: you want to get greedy with a revolutionary clamp/ make two panels/plate join/or go for length/vs width/i generally
use 1 clamp every 6-8" width. hope this helps. joe/carpenter/50yrs/rt.
i am gluing up 1 by boards 14 1/4" long, 57" long, 30 3/4" long &18 3/4" long.
How many clamps do I need on each?
Pappy on Jul 18, 2016
BEST ANSWER: I do t see any problem with any of the boards with the possible exception of the 57. Presume they are each separate glue ups. You might need two clamp sets side by side to do a proper job on those 57" pieces. Clamps are easy to use and do a nice job. Let set for about s half hour and remove squeeze out - will make finishing tasks easier and better. Hook luck,
I need one for 48 inch wide panel. Is there that size?
Frank A on Dec 12, 2017
BEST ANSWER: Not yet. Currently (Nov 2018) Damstom says they are considering a clamp in the 50-52" range. Hopefully they will release one soon.
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