5 Best Clamping Squares for DIYers and Carpenters

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When putting together a DIY project or construction work, a clamping square can be a handy tool to have on hand. A clamping square is a drafting tool that consists of a 90-degree L-shaped ruler with one leg marked as inches and the other labeled as centimeters. It’s used for making accurate measurements of angles during construction, as each degree of an angle is equal to 1 inch. These tools are essential to helping build things out of boards. Clamping squares are great tools to use when making furniture, cabinets, shelves, and other structures that require careful measurements. The 5 best clamping squares for DIYers and carpenters are listed below. 

Should a Woodworker Get Clamping Squares?

Clamping squares are great for measuring angles, but they are not great for measuring anything else. It will be straightforward to assemble two pieces of wood accurately at a 90-degree angle using a clamping square. There are other ways to do this, but that will be time-consuming and inaccurate. The clamping square is a great tool for the woodworker to have when accuracy is the main concern. 

Image Product Details   Price
YWNYT 5.5” Aluminum Clamping Squares YWNYT 5.5” Aluminum Clamping Squares Color: Red
Note: 5.5″, 2 Clamping Squares, 4 Clamps
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SYWAN 4.7” Precision Clamping Square SYWAN 4.7” Precision Clamping Square Color: Red
Note: 4.7″, 2 Clamping Squares, 4 Clamps
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Jevons 3D Clamping Squares Jevons 3D Clamping Squares Color: White
Note: 6″, 4 Clamping Squares
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QWORK 90 Degree Positioning Squares QWORK 90 Degree Positioning Squares Color: Red
Note:  5.5″, 2 Clamping Squares, 4 Clamps
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SILIVN 90 Degree Corner Brackets SILIVN 90 Degree Corner Brackets Color: Red
Note:  5.5″, 2 Clamping Squares, 4 Clamps
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List of the 5 Best Clamping Squares

Want to know about the best clamping squares that are on the market? You’re in luck because this list should be able to help you out. From a good quality plastic one to a magnetic one, there is a little something for everyone. Before we go any further, it’s important to note that not all these items are created equally, and some may be better for your particular needs.

1. YWNYT 5.5” Aluminum Clamping Squares

YWNYT 5.5” Aluminum Clamping Squares

I always keep the best product at the top of my list during product recommendations, and this one is no different from them. In my opinion YWNYT 5.5 Inches Aluminum clamping squares is the best clamping square. You will know why this clamping square is in the 1st position.

First of all, YWNYT clamping squares are made of aluminum that does not require any expert opinion for durability. It has a beautifully smooth finished and colorful outlook with some perfectly drilled holes in its body. You can feel the smoothness when you touch this right-angle square. The surface is treated with water and corrosion-resistant paint that ensures at least a decade of use.

These clamping squares are easy to use with all types of edges like beveled edges and fragile cutting edges. It is very easy to use and always maintains a perfect 90-degree while assembling two pieces of wood.

You can use this kit to assemble all of your larger projects more quickly and efficiently than ever before. With the two different clamps will you’ll be able to build cabinet boxes, frames, or furniture cabinets.

Now let’s see the specification of this clamping square package offer. This package included 2pcs right angle clip & 4pcs Clamps for holding those square clamp tightly. Squares measurements are 5.5″ x 5.5″(14×14cm) and the clamps are able to fit from 7/16” to 1- 9/16” wood board. This one set of tools will do your work in a second when you are trying to make a box or frame and this kind of project. 

Overall, I love these clamping squares from the first use. I would suggest you purchase one of these for doing your project quicker than ever before.


  • Clamping squares and clamps are made of durable aluminum. 
  • One package contains 2 squares and 4 clamps that is enough for making a square box.
  • Well finished and beautiful outlook.
  • Measurement is accurate.
  • Suitable for all types of edges.
  • Easy to use.


  • A little bit expensive than other clamping squares.

2. SYWAN 4.7” Precision Clamping Square

SYWAN 4.7” Precision Clamping Square

The Clamping Square is made of high-quality aluminum alloy, which will last for years. The clamping square has an anodized red surface, which is durable and resistant to corrosion, preventing rust.

Like other positioning squares, these clamping squares also contain lots of holes in its body but includes 6 holes on each side that will provide a large area for clamping. This ensures more convenient work than other squares that contain fewer holes.

When you are attaching two wood pieces, you just need to place this square in the corner of those two pieces and clamp the square tightly. It will be a perfectly 90-degree corner, and the wood pieces won’t move a bit when you try to nails or screw them.

This right-angle clamping square can be used with beveled edges, fragile cutting edges, and all these kinds of edges. It is very easy to use and comes in handy when you are trying to do lots of work in a short time.

Measurement of both sides of the square are exactly 4.7 inches, and one side of the squares contains inch measurement, and the other contains 120mm. The package includes 2 squares and 4 clamps, so you need 2 packages for making a large box.

You will be able to make boxes, picture frames, 90-degree welds, shelf cabinets, outside corners, and so on.


  • Beautiful color and smooth finished body.
  • Dust and corrosion-resistant clamping square.
  • Perfectly 90 degrees, and the measurements are accurate.
  • Easy to use and durable.
  • 5.5 inches and 4.7 inches both options are available.


  • Little bit expensive.

Know More: 6 Best Picture Frame Clamps for Securing Glued Corners

3. Jevons 3D Clamping Squares

Jevons 3D Clamping Squares

Now I will talk about a special corner bracket that is made in the USA. The specialty of this corner square is that it’s a 3D clamping square. If you don’t know how this can help you, I can tell you that it will be easier to use for perfect 90 degrees corners.

Other corner brackets in this list are colorful and stylish, but this one is simple and effective. You can use this inside of the corner and also outside of the corners. Any kind of clamps will be fitted with this clamping square. This is made out of 3/16″ thick aluminum that is machined to an accuracy of ± .002″. It’s a slightly heavier and sturdy corner bracket that will serve you for a long time.

As I told you before, the outlook of this corner square is not so gorgeous, but you will find hundreds of applications for these squares. Making drawers, boxes, picture frames, cabinet corners, and all these kinds of work will be easier to do with this square.

The package contains 4 clamping bracket that is necessary for making a large wooden box. One drawback of this package is that it does not contain any clamps to attach them. All kinds of clamps are suitable, so you can use any of your existing clamps. If you don’t have any, then you have to order them separately. 


  • 3D shapes are easier to use.
  • It has hundreds of applications.
  • Contain 4 brackets.
  • Large size bracket and heavyweight.
  • Accurately 90-degree corner.


  • Does not contain any clamp.

4. QWORK 90 Degree Positioning Squares

QWORK 90 Degree Positioning Squares

It is made of stainless steel material, and it is a remarkable product. 90 Degree Positioning Squares is made of high-quality material like aluminum alloy. It goes without saying that this product is very durable.

The finishing of the upper part is much better, and the clamping square has become more attractive for the red coating. In order to be so good out surface finishing, it basically protects from harmful elements like corrosion, water, waste material, etc. Undoubtedly, it will last as long as many years because its structure is so strong.

Then the most important thing is the size and weight of the camping square. Because its size and weight will depend on how easily you handle it. This may be your best choice with a 14 cm / 5.5-inch body because it is a standard size for working on all types of wood, big and small. Through which you can efficiently do your work. This clamping square is also available in 4 inch and 4.7-inch sizes. The smaller size is cheaper than the large one. The package contains two corner brackets and 4 clamps to attach them.

It is relatively lightweight. So, you will be able to manage it as you wish. And it will not damage your wood in any way. This corner bracket is relatively easy to use. This is because to use it; you just have to place the square at the corners of two square stock pieces and secure it with a set of clamps. This set of squares and clamps are fully adapted to various large and small DIY projects.

Through this, you effortlessly and professionally can make the perfect fit for essentials like furniture cabinets, drawers, boxes, etc., because a 90-degree right angle corner clamp holds the joints at a 90-degree angle.

This makes it possible to create an object to a perfect size when creating any square type object. And we know that the most important thing when creating an object is the perfect measurement of the object, which you can easily get through this clamping square.

Finally, I would like to say that you will benefit a lot from using this clamping square and you will be able to complete your work very easily and perfectly. In my personal experience, I have benefited a lot from this clamping square.


  • Clamping squares are made of high-quality materials like aluminum alloy.
  • For a good and beautiful external body, finishing basically protects from harmful elements.
  • Able to create a square box of any size because its measurement is accurate.
  • You will be able to manage it as you wish.
  • It is very beautiful and attractive to look at due to its red color.
  • Reasonable price.


  • ·   Clamps are small.   

Know More: 7 Best Cabinet Face Frame Clamps for Easy Frame Installation

5. SILIVN 90 Degree Corner Brackets

SILIVN 90 Degree Corner Brackets

The square is made of aluminum alloy, which is durable and will last for years. Since the square has a red finish, it is easier to find when in use or when laying out your measurements on a job site. A high-quality anodized coating is more than just a pretty color; it provides durability and protection against corrosion and wear and tear.

The 90-degree positioning square is ideal for drawers, boxes, and other pieces that require accuracy. It can be used with screws or nails to draw up joints for cutting. You can use the corner square anywhere you need a 90-degree angle. Simply place it in the corner of two pieces of wood and secure it with clamps. It can be used on all sorts of projects, from small boxes to large tables.

This product is designed to be clamped onto many different types of boxes when building projects that require two or more pieces of wood to be glued together in order to reduce the risk of damage due to twisting during the process. as well as minimize the amount of scrap material by being able to keep one edge flush with a clamping tool for checking and positioning joints before gluing them together.

There is only one size is available that is 5.5,” and the package contains 2 corner squares and 4 clamps. The drawback of this product is that the clamp is a little bit small to be clamped for a wider wood piece.


  • Very simple to use.
  • Very sturdy and durable.
  • Clamps are provided with it.
  • Slick and smooth


  • The clamps are a little bit small to accommodate a wider wood piece

Know More: 6 Best Panel Clamps Review in 2022

Buying Guide for Clamping Square

We always try to introduce you to the best and perfect thing. And how can you decide on an accurate good clamping square? It will depend on the product’s material, size, accurate measurement, the perfect weight, and on to some more notable issues. The size and the weight matter. The heavier the clamping, the more accurate it will be. Now I will talk about how to choose a perfect corner square. What to look for in a corner Square?


Your clamping square should have the perfect material. A metal corner square is much more durable than a plastic one. However, if you want to use the plastic clamping square, then it should have high-quality and durable plastic. It will be suitable for all kinds of clamping work. All the clamping squares that I mentioned before are made of aluminum, so you don’t have to worry about the materials. If you want the material to be cheaper, then you can opt for a plastic clamping square.


Your corner bracket needs to be of the correct size. It depends on the style of the furniture that you want to clamp. If you want to clamp a bookshelf, you need to make sure that the size of the bracket is big enough to hold it. The largest size bracket should be able to hold the largest size shelf. If you want to clamp a small bookshelf, then you can use a smaller size bracket. 


When you want to clamp a certain furniture style, make sure that you pair it with the correct bracket. Some brackets are usable with only one clamp type, whereas some can be clamped with any clamp. So if you don’t want to buy extra clamps and use your own clamps, then make sure the clamps fit in your clamping square.


If you are a beginner, then you may not have a lot of money to spend on your furniture. You can buy a basic square that will clamp almost anything. But if you are a busy person, you will want to buy a square that will do everything. Make sure that you don’t buy an inexpensive square that you can’t use efficiently in your project. Finally, it is an expensive product so don’t buy it if you are never going to use this.

How Do You Square a Cabinet with Clamps?

Frequently Asked Questions are Answered

1. Will This Clamp Hold My Corner?

The square clamp is specifically designed to hold the corner of a piece of furniture or cabinet. It will hold any corner.

2. What is The Best Clamp?

The best clamp is one that will hold your corner and is inexpensive. You can buy a basic square that will clamp almost anything. 

Know More: 5 Best Drawer Slide Jig for Quick Installation

3. Are There Any Tips on Using a Square Clamp?

Yes, you need to be careful to clamp the piece of furniture or cabinet to the wall. You need to be careful about making sure that the piece of furniture or cabinet is securely clamped to the wall. You also need to be careful with any other pieces of furniture or cabinet that are in the way. You might need to move a piece of furniture or cabinet to get the square clamp to hold your corner.

4. Do I Need a Square Clamp and a Clamp?

Yes, you will need a clamp to hold your piece of furniture or cabinet to the wall. You will need a clamp to hold your corner.


There is no doubt that this product will be handy for anyone looking for a glue-less solution to making custom corner joints. I hope that this clamping square review will help you make a decision. Happy DIYing

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