Top 7 Best Clamping Squares for Woodworking in 2023

A clamping square might come in helpful while putting together a DIY project or doing some woodwork. A clamping square is a drafting tool made out of a 90-degree L-shaped ruler with one leg labeled in inches and the other in centimeters. It is used to measure angles accurately during construction since each degree of an angle equals 1 inch. Here we put together the top 7 of the best clamping squares available now on the market for your next woodworking.

What is Clamping Square?

A clamping square is a tool that can help you to accurately measure 90-degree angles when working with corners. It will ensure you are working with perfect 90-degree angles while gluing corner joints or making screw holes in corner joints. It is suitable for squaring up shelf cabinets and keeping a square when assembling cabinets, frames etc.

It is incredibly simple to use. Simply place the square on the corner of the two boards and secure it with the clamps. Then do whatever you want to do, they will always assure you do not mess with the accurate right angle.

Reviews of the Top 7 Best Clamping Squares 

We will provide you with a list of the top 7 best clamping squares for faster and more accurate corner clamping of picture frames, cabinets, drawers etc.

1. Relitec R Positioning Squares

Overview

Brand: ‎Relitec R

Product: Relitec R 90 Degree Corner Clamp

Material: ‎Plastic

Included Components: ‎Set of 3″, 4″, 6″ Clamping Square

Item Weight: ‎ ‎ ‎200 Grams

Key Features

• High-quality, long-lasting material.
• A wider range of sizes and a lower price.
• Ideal for gluing and assembling your furniture.
• In your woodworking tasks, square up flawless corners.
• Each square has an embossed gradation (in inches and millimetres) on both the inner and outer edges.

Relitec R Positioning Squares are made to make your life easier when you are doing corner clamping. It is suitable for assembling and fixing cabinets, picture frames, furniture cabinets, boxes etc. It is very easy to use. You just need to put the square on the corner of the two boards and fixed with the set of clamps.

Any thickness of wood is suitable depending on the size of the clamp. It is usable with woodworking clamps such as Quick clamp, Spring clamp, C clamp, Bar clamp, Face clamp and F clamp. These positioning squares are high strength engineering plastic, high hardness, strong and durable.  It has clear and accurate measurements in both imperial and metric.

These positioning squares comes with a wide variety of sizes. For additional woodworking workpieces, a range of 3″, 4″, and 6″ sizes are available. Applicable to any thickness of wood, with no maximum thickness, to satisfy your various demands. You will get everything you need to make perfectly square boxes, drawers, cabinets, frames, and furniture cabinets, among other things. Some woodworkers even include them in their jigs and fittings. 

These clamping squares are accurate 90 degrees, as claimed by the manufacturer. But some customers complained that all of them are not accurate. Sometimes they are high degree of variability between the pieces – literally 1-3° differences – range is 88-91°. If you need accurate corner clamping, then sometimes it may causes problems.

Pros

• High Quality Material.
• A wide range of sizes.
• Perfect 90 Degree Clamps.
• Wide Application.
• Ideal for gluing.
• Inexpensive.

Cons

• Some clamps may be inaccurate.

2. HARDELL 90 Degree Positioning Squares

Overview

Brand: ‎HARDELL

Product: HARDELL 90 Degree Positioning Squares 5.5″ x 5.5″

Material: Aluminum

Included Components: 2pcs positioning squares, 4pcs each of plastic nut, adjustable fixed blocks and right-angle screws

Item Weight: ‎ ‎ ‎2.18 pounds

Key Features

• Precise 90-degree angle clamps for woodworking.
• L Shaped Angle Clamp, Strong Fixing ability.
• 4 holes on each square, easy to clamp.
• The clamps fit for the wood board thickness from 0 to 2 Inches.
• Designed to be clamped to most kinds of boxes during glue-up to aid in squaring.

HARDELL 90 Degree Positioning Squares is made of a high-quality aluminum alloy that will last for years. Rust prevention with anodized red surface that is durable and corrosion-resistant. Professionals can use this right-angle jig set to assemble frames, drawers, picture frames, boxes, and other furniture. It may also be used for welding and woodworking. DIY makers, engineers, carpenters, and others will find this tool useful.

To achieve 90-degree precision, this clamping square kit is comprised of high-grade aluminum alloy and stainless-steel clamps. The squares feature beveled edges, perfect 90° corners, are lightweight, and will not harm delicate cutting edges. Simply insert the square in the corner of the two stock pieces that need to be squared and clamp them together.

This clamping square for woodworking features exact graduations and can be used as a ruler at the same time. Engraved with metric and imperial measurements, the scale is accurate, durable, and easy to read, so it can be used for many years. This clamping squares suitable for up to 2″ wood board thickness.

Ideal for squaring up shelf cabinets and keeping a square while putting together frames, cabinets, or just about any box. It’s a really useful tool for making your woodworking job go more smoothly.

Pros

• High quality aluminum alloy.
• Perfect 90° squares
• Beveled edges.
• Adjustable fixing blocks
• Easy to use

Cons

• L rods may not give good grip.

3. QWORK 90 Degree Positioning Squares

Overview

Brand: QWORK

Product: QWORK 90 Degree Positioning Squares

Material: Aluminum

Included Components: Two (2) Clamping Squares

Item Weight: ‎ ‎2.25 pounds

Key Features

• Made of 100% high quality aluminum alloy and stainless steel clamp.
• The clamps are rust-resistant, corrosion-resistant, and long-lasting.
• The clamps are suitable for wood boards ranging in thickness from 7/16″ to 1-9/16″.
• Perfect for squaring up shelf cabinets and keeping a square while putting together cabinets, frames, and so on.

QWORK 90 Degree Positioning Squares offers high-quality aluminum alloy and stainless steel clamp. It is anti-rust, anti-corrosion and durable for long term service. Anyone can fix and build furniture cabinets, picture frames, cabinets, and boxes with this carpenter right angle jig set. 

The upper half has a much superior polish, and the clamping square has become more appealing to the red coating. It mainly guards against harmful elements like corrosion, water, waste material, and so on in order to be so effective at surface finishing. It will undoubtedly last for many years due to its robust construction.

It is great for straightening up shelf cabinets and keeping things square when putting cabinets, frames, and other things together. Place the square on the corner of the two raw materials to be flattened and secure with clamps. It is easier to work with beveled edges and avoid damaging the delicate cutting edges. 

It comes with 2 pack of clamping squares, which has 4 holes on each square that are very convenient to use. Two L-shaped angle clamps are included, each with two fastening blocks to aid in the fixing and assembly of cabinets, drawers, picture frames, and other items. L shaped angle clamp has strong a fixing ability. This clamp fits wood boards with thicknesses ranging from 7/16″ to 1- 9/16″, and the 90-degree angle provides firm balance for easy operation.

Pros

• Durable aluminum alloy square.
• Two measurements: metric and imperial
• Beveled edges.
• L shaped angle clamps.

Cons

• Clamps tend to lock up.

4. KINJOEK 4 Inch Clamping Square

Overview

Brand: KINJOEK

Product: KINJOEK 4 Inch Clamping Square

Material: Acrylonitrile Butadiene Styrene

Included Components: 6 PCS 4 Inch 90 Degree Positioning Squares

Item Weight: 128 grams

Key Features

• High-impact foamed plastic construction.
• In your woodworking tasks, square up perfect corners.
• Ideal for gluing and assembling your furniture.
• Embossed gradation (in inches and millimeters) on both the inside and outside edges of each square.

KINJOEK offers a set of 6 pcs of 4 Inch 90 Degree Positioning Squares. These Carpentry Squares are ideal for clamping to boxes, picture frames, shelf cabinets, and outside corners, among other things, to help with squirting during glue-up.

These 6 PCS Positioning Squares are 90 degrees exact and are ideal for picture frames, cabinets, tiny boxes, and drawers, among other things. Durable and made of some type of polyresin. The positioning squares are easy to clamp and robust enough not to bend since they are made of high-quality plastic that ensures excellent durability and lightweight use.

These Positioning Squares tools may be used as precise measurement guides on both the inner and outer borders. There is even more. The squares are molded with embossed gradation (in inches and millimeters) to give straightforward measurement instructions. This woodworking tool comes in helpful for a proper angle fit and assembling decorative wood boxes and other crafts, among other tasks.

These square clamps are excellent; however, I wish they had a hole on each side so that we could use our small picture frame clamps. Apart from that, I have no problems. They are not bad, although they are not constructed of very tough or robust material. If you absolutely need to clamp wood into a pure 90-degree angle, metal angles are ideal since they bend somewhat under strain.

Pros

• Inexpensive.
• Very Lightweight.
• Accurate 90-degree squares.
• Graduated measurement markings

Cons

• No hole to clamp.
• Plastics are prone to bending.

5. Milescraft 4011 8″ ClampSquares

Overview

Brand: Milescraft

Product: Milescraft 4011 8″ ClampSquares

Material: Plastic

Included Components: Two (‎2) Clamp Squares

Item Weight: ‎ ‎‎1.01 pounds

Key Features

• The 8′′ x 8′′ robust body is ideal for projects that need 90° clamping.
• Fence Clamp holes allow you to employ several models of fence clamps.
• Clamp notches on the bar prevent the clamps from moving, allowing for accurate alignment.
• Has patented dovetail tracks that are compatible with Miles craft track clamps.

Milescraft 4011 8″ ClampSquares is perfect for project where 90° clamping is essential. When you need to square up corners in your woodworking assembly and gluing applications, the Milescraft 8″ clamp squares are the best answer. These clamp squares are lightweight and robust, making them simple to use. These clamp squares, unlike metal squares, will not mar your workpieces. 

These are the ideal accessory since 90° angles are a woodworking need. On both the inside and outer edges, clamp squares can be employed. The 8″ squares are perfect for projects ranging from box assembly to shelf installation.

It has a durable, ABS foam-filled assembly square that is lightweight. This square may be used with the provided clamps or on its own with fence clamps, bar clamps, f-clamps, and other clamps. Every time, I make square joints! There are four built-in holes for fence clamps to secure the square to your item. Built-built slots in the square’s body allow the bar clamps to sit firmly and flat against the square’s body, allowing for maximum clamping pressure with no danger of the clamps moving.

The size of this is ideal for a variety of home DIY projects, and the matching clamps are enough. Unfortunately, the execution falls short of expectations. Because of the flexible nature of the plastic, it is unsuitable for precise work. The designer should have used a stiffer material or added extra reinforcement to the design.

Pros

• Very inexpensive.
• Very lightweight.
• Perfect 90° clamping.
• Fence Clamp Compatible.
• Bar Clamp Compatible.

Cons

• Dropping may split in half.

6. Mocoum Aluminium 90 Degree  Clamping Square

Overview

Brand: MOCOUM

Product: Mocoum 90 Degree Positioning Squares 4.7″ x 4.7″

Material: Aluminum

Included Components: 4pcs of Clamping Squares

Item Weight: ‎ ‎ 1.21 pounds

Key Features

• It is made of Aluminum Alloy, not Plastic.
• This square clamp makes your small glue-up jobs much easier.
• Square up perfect corners in your woodworking projects.
• Each square has an embossed gradation (in inches and millimeters) on both the inner and outer edges.
• A convenient inside notch improves squaring accuracy even further.

Are you having problems making a precise right-angle form despite spending a lot of effort on it? MOCOUM’s correct angle placement square is here to assist you with these issues. MOCOUM’s 90-degree positioning square is made of a high-quality aluminum alloy that ensures maximum durability and portability. This woodworking angle tool has an anodized red surface that is corrosion resistant.

It may be used with a clamping tool to verify and place the corner for jointing and gluing wood boards. It is ideal for gluing and assembling your boxes, drawers, frames, furniture, cabinets, etc. It may be used for right-angle woodworking and welding. A useful tool for making your woodworking job go more smoothly.

MOCOUM 90 degree clamping square tool makes 90-degree right angle woodwork more convenient and saves time. Our corner clamp jig is critical for achieving balanced project results. This 3D woodworking ruler with clear scale in inches and millimeters for accurately measuring length and placement.

MOCOUM Carpentry right angle jig set is used by professionals to construct and DIY boxes, drawers, cabinets, frames, and furniture cabinets, among other things. Some woodworkers even include them in their jigs and fittings. You can not only execute glue-up projects, but you can also manage intricate wine rack jobs and help with squirting throughout the glue-up process.

The interior and outside corners of your work item may be clamped using this unusual woodworking tool. An F-Clamp or a C-Clamp is used to secure the 90-degree right angle clamp to your stock.

Pros

• High quality aluminum alloy.
• Perfect 90° Corners.
• Wide Applications.
• Lightweight.
• Easy to use.

Cons

•  Measurement marks are inaccurate.

7. WETOLS 90 Degree Right Angle Clamp

Overview

Brand: WETOLS

Product: WETOLS 90 Degree Right Angle Clamp

Material: ‎High Impact Engineering Plastics

Included Components: 12pcs x 90 Degree Right Angle Corner Clamp

Item Weight: ‎ ‎2.3 pounds

Key Features

• 12 positioning squares are included in the 90-degree corner clamp set.
• These woodworking positioning squares have rounded corners and no sharp edges.
• Embossed gradation (in inches and millimeters) on both the inside and outside edges of each square.
• Awesome Gift for the Handyperson and Do-It-Yourselfer.

WETOLS 90 Degree Right Angle Clamp is the last but not the least good clamping squares on our list.  WETOLS Right Angle Clamp Squares are composed of High Strength Engineering Plastics, which are far more durable and lightweight than comparable products. It is a multiangle clear scale with accurate measurement. And it is a versatile tool for your toolbox.

WETOLS positioning squares, with a high-impact plastic structure for maximum durability and lightweight use, are a great assistance. The 90-degree corner clamp set comprises 12 positioning squares in three sizes: 3, 4, and 6 inches, each with four pieces, perfect for various thicknesses of wood projects.

You won’t have to worry about producing inaccuracies using 90-degree right angle square clamps. It also functions as a ruler, having distinct scales in inches and millimeters, as well as multi-angle calibration at 45 and 22.5 degrees. You may simply construct a perfect square. These woodworking positioning squares have rounded corners and no sharp edges. Hands are safe and undamaged, there is no deformation, and it is very simple to use with all types of clamps.

Each square has an embossed gradation (in inches and millimeters) on both the inner and outer edges. In addition, there are 45 degrees and 22.5 degrees at the center of the right-angle ruler, which are useful for measuring angles. The scale is well-marked for easy sight, and it can suit your everyday requirements.

WETOLS woodworking right angle clamp is used in the construction of wood boxes, cabinets, picture frames, drawers, and furniture, among other things.  Are you looking for a gift for someone who has everything? Most likely, they don’t have this! It is a great present for DIY enthusiasts and handymen.

Pros

• High-strength engineering plastic.
• Various application.
• Different sizes.
• Accurate 90 degree.
• No sharp edges
• Accurate measurement scale.

Cons

• Clamping squares flex a bit.

Buying Guide for Cabinet Face Frame Clamp

A clamping square can ease your woodworking and make the job easier and simpler. Here are some tips for buying a best clamping square for yourself:

Price Range 

The cost of a model varies depending on its size, quality, ease of use, and other variables. Consider all of these things before making a purchase to avoid wasting money on something useless. Always think about the fact that how many times you are going to use that, then it will be easy to go for something durable and expensive.

Materials Used

There are basically two types of materials used to make clamping squares, one is plastic and another is aluminum. So, always make sure you are buying something that fulfills your need and also fits in your budget. Because plastics are cheaper than aluminum, so if you don’t want to use this for a long time then it is better to go for plastic.

Yes! Size Matters

When you are planning to buy a clamping square then remember here size matters. You should buy the clamping squares according to the size of your woodwork. Means only buy those size of clamping squares that will suit with your work. Otherwise they may become useless. 

Your Purpose

Another important factor to examine is the utilization of purpose. You should think about where you will use these clamping squares and for what reason. If you just want to use them for one or two times, then you should buy a smaller set of clamping squares. But if you are a professional woodworker and regularly work with corners, then it is better to go for a bigger set.

Go for Pair

Don’t buy clamping square without pair. Because definitely you will need them in pairs. Your corner clamping needs at least two clamping squares. Sometimes we will need four of them to do the job accurately in no time. On the other hand, pair will make sure the measurement is right on each side at the same time.

Go for Aluminum

If you are professional then don’t think twice. Just buy that clamping squares which is made of aluminum and fits in your budget. Because definitely you will need them many times in your woodworking job, so there is no option for going less than durable.

But if you are a DIYer who is do this as hobby or maybe use it for just few times. Then it is better to go for plastic materials which is quite durable and under your budget too.

Consider Extra Clamps

If you don’t have any clamp to use with your clamping square while assembling corners. Then definitely you should go for that set which includes clamps. Otherwise your clamping squares will be useless.

What Are The Benefits Of Using A Clamping Squares?

Clamping squares will make your job faster, easier and more accurate. They are excellent for measuring angles but not for measuring anything else. Using a clamping square, it will be simple to correctly join two pieces of wood at a 90-degree angle. Other options are available, but they will be time-consuming and imprecise. When precision is paramount, the clamping square is an invaluable tool for the woodworker.

Clamping squares main benefit are that it is perfect for gluing and fitting together your furniture. Other special benefit is in your woodworking tasks, it squares up perfect 90-degree angle corners. And definitely it works with both inner and outer corner of your materials.

Frequently Asked Questions on Clamping Squares

1. Clamping Squares Works On The Inside Or The Outside Of A 90 Degree Joint?

Yes, they will do both. Every clamping squares are designed to work on both the inside and the outside of your material.

2. Do I Need a Clamping Square and a Clamp Both?

Yes, you do. Because clamping square will help you to keep the corners precisely accurate. On the other hand, clamp will help you to hold the clamping square with the corners.

3. Are The Positioning Squares Solid? Do They Bend?

Most them are solid, especially the aluminum ones. But the plastics made ones can be bend and even break at some points.

Do Clamping Squares Have Holes Through Them For Clamps?

Some clamping squares come with built-in holes in each side for clamps. There are also some clamping squares which does not have any holes, but they work fine. 

Conclusion

This clamping squares are undoubtedly come in useful for anybody searching for a way to make perfect corner joins. I hope this top 7 best clamping squares review has been helpful in making your selection. I hope next time there will be no error in your work when working with corners or gluing corner joins.