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Special Price $9.99 Each Regular Price $12.99 Each
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Align it, clamp it, and fasten it to get perfect 90° angles every time!
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Rockler Clamp-It® Assembly Square

Item #
29190
Rating:
90% of 100
355  Reviews
Rockler Clamp-It® Assembly Square DIY Entryway Table | Darbin Orvar DIY Media Stand | Darbin Orvar Giant Air Jordan Shoe Storage Box Project | Glass Impressions Dresser Build featuring Rockler's Dovetail Jig | Patrick Hosey Rockler's Clamp-It Assembly Squares Rockler Clamp-It® Assembly Square Rockler Clamp-It® Assembly Square Rockler Clamp-It® Assembly Square Rockler Clamp-It® Assembly Square Rockler Clamp-It® Assembly Square
Rockler Clamp-It® Assembly Square
Here's a solution that's so simple, you'll wonder why it took so long to develop! The Clamp-It® replaces custom clamping jigs, acts as a third hand, and eliminates the need for long bulky clamps. Simply put, the Clamp-It® is a square you can clamp. In fact, you can even assemble a cabinet one corner at a time! Works with any joinery technique, from nails to hand cut dovetails.

It's ideal for every stage of construction, from assembling plywood cabinets to face frames and drawers. Clamp-It® is also perfect for framing decks and installing rails and balusters. Attach it to a work surface, and it becomes a right angle fixture for bench assembly. Clamp-It® is computer designed and manufactured from high impact, rigid polycarbonate to ensure strength and accuracy. Size of the Clamp-It® is 8" X 8" X 1 - 1/2".

Great for:

  • Drawer Assembly: Clamp-It® is designed for use on either the inside or outside of a corner, making it ideal for assembling drawers with lipped fronts.
  • Deck Rails: Use Clamp-It® to hold deck balusters at a perfect 90° angle while fastening.
  • Bench Jigs: Clamp-It® can be secured to any work surface to create a simple 90° assembly jig.
  • Clamp-It® Bar Clamps sold separately
(1) Clamp-It® Assembly Square
More Information
Brand Rockler
Weight 0.8000
Outlet No
Length 8"
Style Square
Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

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4.5 / 5.0
355 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
252
56
17
18
12
Great quality and exactly as described
February 15, 2019
Purchased
 1 month ago
Woodworking Experience:
Advanced
Keeps 90 degree angles correct while attachment.
February 14, 2019
Purchased
 4 weeks ago
Woodworking Experience:
Intermediate
Great for gluing corners squarely
I use these on most project to hold corners squarely in place (along with easy on-handed clamps) while glue dries. This has always held my corners square leaving a decent project that is squared up nicely.
February 12, 2019
Purchased
 over 3 years ago
Woodworking Experience:
Intermediate
assembly squares
they were needed to assemble a door frame with a plexiglass insert.
February 6, 2019
Purchased
 1 month ago
Woodworking Experience:
Intermediate
Exactly what was needed
The assembly square is exactly what was needed to make easy 90 degrees corners on the picture frames.
January 29, 2019
Purchased
 1 month ago
Woodworking Experience:
Intermediate
Great to have on hand
For quick set-up these are great to have on hand.

Expensive for a set of four, but as they say, buy once cry once!
January 27, 2019
Purchased
 1 month ago
Woodworking Experience:
Intermediate
Easy to use and accurate
Makes getting perfect 90 degree corners much easier. I used along with the clamp it jig and they work well together. It also works good on its own in case you don't have the jig.
January 25, 2019
Purchased
 2 months ago
Woodworking Experience:
Beginner
Great tool!
These assembly squares are very well made. The attachment points are a real plus. Makes building projects where getting parts square is easy and saves a ton of time and frustration.
January 18, 2019
Purchased
 2 months ago
Woodworking Experience:
Intermediate
great clamp for large plywood pieces
90 degree clamp allows to get consistent results when assembling wood pieces
January 12, 2019
Purchased
 2 months ago
Woodworking Experience:
Intermediate
very good
I use them for claming cabinet to gether , hold them square , make a good 3rd or 4th hand
January 11, 2019
Purchased
 1 year ago
Woodworking Experience:
Advanced
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Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 5 questions Browse 5 questions and 58 answers
Why did you choose this?
Rockler Store
Looks like this would help a lot during assembly of my wood projects
Jeff L on Feb 20, 2019
convenience
Mark R on Feb 20, 2019
Looks like this would help a lot during assembly of my wood projects
Jeff L on Feb 20, 2019
didn't know this was required to use the corner clamp
Bob M on Feb 20, 2019
convenience
Mark R on Feb 20, 2019
Recommended by House of Plywood and Paneling
Chris C on Feb 18, 2019
Help align frames for gluing.
John J. C on Feb 18, 2019
Building kitchen cabinets.
Gregory A on Feb 18, 2019
To build square boxes
Everett M on Feb 17, 2019
Almost a necessity when using the corner clamping jig. The two I already own make sure a right angle is achieved every time.
Gregory S on Feb 17, 2019
To make squaring boxes and drawers much easier and help with hands free work.
Michael S on Feb 17, 2019
USE THEM TO SQUARE UP SIDES ON SMALL BOXES
Clint B on Feb 17, 2019
I have some already.
Dennis V on Feb 16, 2019
To make boxes
John O on Feb 16, 2019
Have 3 and needed one more.
Jared P on Feb 13, 2019
Perfect for panel-type cabinet door assembly, and the material won’t adhere glue.
Trent L on Feb 13, 2019
I used it to build window frames
Don E on Feb 10, 2019
To work along with Clamp-it Jig
John W on Feb 9, 2019
just to try them
Kevin J on Feb 9, 2019
Looks like it would be a great product and helpful constructing many things.
Tom S on Feb 8, 2019
I had the wrong size to fit the corner jig
Paul B on Feb 8, 2019
I make lots of cabinets and drawers. Will assist making the sides at right angle.
Bruce M on Feb 8, 2019
Great system to get repeatable results every time!

Make sure to get the other required piece: Rockler Clamp-It® Corner Clamping Jig
Michael W on Feb 5, 2019
email ad
Darrell J on Feb 5, 2019
I have 2, wanted 2 more. Work great.
Thomas H on Feb 4, 2019
Saw it in your Portland, ME shop, and love the simple utility.
Andrew M on Feb 4, 2019
Saw this in use and couldnt believe how much easier it made things.
Peters F on Feb 3, 2019
I am going to build several boxes.
Danny S on Feb 3, 2019
Guaranteed square assemblies
Paul P on Feb 3, 2019
Case clamp ups
STEVEN M on Feb 3, 2019
Case blimp ups
STEVEN M on Feb 3, 2019
Base cab
Robert C on Feb 3, 2019
About to try cabinet building for the first time...determined to be as prepared as possible for square results
Alicia B on Feb 3, 2019
I needed two more.
Frederick F on Feb 3, 2019
Have 2 and need more for large cabinets.
Walter S on Feb 1, 2019
Last piece needed to have the box building kit
Denise C on Jan 31, 2019
Already had some needed more
steven h on Jan 31, 2019
light weight and will be able to use for more then one propose
sylvan fisher Y on Jan 31, 2019
To go with the corner clamping jig already purchased
Anita M on Jan 31, 2019
Use for the corner clamps I bought previously
Dennis S on Jan 30, 2019
Always looking for scrap wood to make an accurate corner. Now I don't have to look anymore.
zbish on Jan 30, 2019
It goes with the corner clamping jig I just bought as well as a number of other uses.
Bjarne A on Jan 29, 2019
Like having a helper without pay.
Joe S on Jan 29, 2019
Maintain square fit, during glue, up when working alone.
Rick H on Jan 28, 2019
cabinet making
Mark R on Jan 27, 2019
On sale and perfect fort making cabinets
James B on Jan 26, 2019
Wasnt included with corner clamp
Timothy W on Jan 25, 2019
Never have enough
Russell G on Jan 25, 2019
For cabinets and dresser builds
Andrew V on Jan 24, 2019
Build cabinets
Julianne G on Jan 24, 2019
Been something I have been looking at for a while, on sale and figured why not try them.
al b on Jan 24, 2019
Required to use with the Clamp-it corner clamping jig and was not included.
Mike F on Jan 23, 2019
didn't know this was required to use the corner clamp
Bob M on Feb 20, 2019
Recommended by House of Plywood and Paneling
Chris C on Feb 18, 2019
When should I use the Clamp-it Corner Clamping Jig vs. the Clamp-it Bar Clamps?
Jerry on Apr 28, 2017
BEST ANSWER: I work for Rockler. When the material is over 2" wide to be clamped, use the bar clamps. I fit is under the clamping jig works very well.
How many are in a package?
A shopper on Jul 29, 2015
BEST ANSWER: Just one. Clamps must be purchased also. Other clamps will work.
What are its complete mesures, 8"x8"x1.5"x?"...?
Carlos Otto C on Jun 21, 2018
BEST ANSWER: 96”
Does the screw holes line up to the holes in the clamp-it corner clamping jig ?
Larry K on Jan 16, 2019
BEST ANSWER: Yes, and the jig comes with the screws you need.
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