The 10 Best T-Square Rulers

Sara Mandeed
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Whether you are a professional carpenter or a budding woodworker, there is no denying the value of having the right tools at hand. A T square is one such tool that will aid your projects by helping you mark straight lines and by being a reliable guide to keep your work pieces straight and smooth. While most woodworkers and professionals use the standard T square ruler, it can actually be hard to find good quality T squares. We have therefore researched the current market thoroughly to provide you with a proper guide to some of the best T square rulers. From the features they offer to the quality of hinges and the type of surface you can expect for your work, we have not left out any aspect. So without further ado, here is our review of the ten best T square rulers on the market.

NameCategoryProduct
Alvin, Aluminum Graduated T SquareBest OverallAlvin, Aluminum Graduated T Square
Pangda 12 Inch/ 30 cm Junior T-Square Plastic Transparent T-RulerBudget PickPangda 12 Inch/ 30 cm Junior T-Square Plastic Transparent T-Ruler
Ludwig Precision 48" Heavy-Duty Aluminum T-SquareUpgrade PickLudwig Precision 48" Heavy-Duty Aluminum T-Square

1. Alvin, Aluminum Graduated T Square

Our rating: 9 / 10

Alvin, Aluminum Graduated T Square

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Pros:

  • Contains both standard and metric measurements
  • Lightweight and easy to mark
  • Graduation marks are easy to read
  • Can easily be stored, even in a small space
  • Can be used to mark parallel, accurate lines
  • Perfect for detailed work like door casing making and cabinet work
  • Very affordable

Cons:

  • The body could be sturdier
  • It’s not the best choice for heavy-duty jobs

Alvin has made this T-square ruler from lightweight aluminum that’s easy to use and ideal for both standard and metric measurements. The length of the tool is 2ft 6in, which allows you to take accurate and fine readings.

The t-square is easy to use and comes with a combination edge that avoids user error. The markings on the profile are clear and highly visible, which helps mark parallel lines on medium density woods.

A traditional copy triangle allows you to mark and transfer measurements for complex trim pieces, or even margin lines. This makes it a good choice for supply and pattern makers, or when you want to transfer measurements on projects with a lot of trim or casing.

2. Westcott Junior T-Square Ruler

Our rating: 8 / 10

Westcott Junior T-Square Ruler

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Pros:

  • Non-slip
  • Measurements are extra-large
  • Aids in drawing accurate and straight lines
  • Sturdy and long lasting
  • Lightweight
  • Has a hanging hole

Cons:

  • May bend slightly
  • The 18-inch length may be a bit short for some people's needs

Measuring 45 inches in total length, this T-square ruler from Westcott is one of the best rulers to be used during arts and crafts. This quality product by Westcott has measurements that are extra-large for easier precision drawing. The T-square is a great tool for drawing uniform as well as straight lines, hence offering accuracy in your drawing and craftwork.

Measuring 9.5 inches in total width, this ruler is easy to use, and it's also sturdily made, so it can be used for many years to come. The non-slip feet on the Westcott JR-18 T-square give stability while you are drawing, which helps to prevent misalignment.The ruler has a hanging hole which is convenient, especially when you need to measure over an existing drawing, as it lets you line up accurately. It's durable, lightweight and has a non-slip grip.

3. Westcott. 12"/30cm Junior T-Square

Our rating: 8 / 10

Westcott. 12"/30cm Junior T-Square

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Pros:

  • Durable wooden case
  • Black pens with selectable sizes
  • Lines are very sturdy
  • Delivered on time
  • Great quality
  • Excellent customer service

Cons:

  • Too many template sheets
  • Ruler tends to bend if used for too long

In our search for the 10 best t-square rulers, we looked at price, customer feedback, and quality. Compared to other t-squares, the Westcott ruler from Wood Craft is reasonably priced. It is also more affordable than other brands without sacrificing quality.

The lines on the Wood Craft ruler are very sturdy, and it could last over long if properly cared for. It arrives in a wooden case which is a plus. It also includes pencils with black lead and nine template sheets. The product is delivered on time, but customer service needs improvement.

One flaw the ruler has is that it tends to bend if used for too long. The template sheets are also too many, which makes it less useful.

4. Alvin, Transparent Edge T-Square

Our rating: 8 / 10

Alvin, Transparent Edge T-Square

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Pros:

  • The 36"-inch T-square has the ideal length and width for framing.
  • It features a transparent edge which makes it easier to keep things straight.
  • The edges are also made of aluminum, so they won’t twist or warp.
  • It’s easy to keep the square in alignment.
  • The square can keep furniture in its proper place.
  • It’s easy to maintain
  • The aluminum is rust-resistant and will remain rust-free for years.
  • It’s moderately priced.

Cons:

  • It’s not as good for beginners as it could be easier to use.
  • It’s not as firm as it could be.
  • The markings could be easier to read.

T-squares are used for many of the same things that a carpenter would need to use a T-square for. They can be made out of a variety of different materials. They can also be made to have different styles as well. The frame of a T-square can actually be bent to follow a variety of different curves and also to follow a variety of different angles. This gives people the opportunity to make the flat T-square into a variety of different shapes and sizes.

5. Pangda 12 Inch/ 30 cm Junior T-Square Plastic Transparent T-Ruler

Our rating: 8 / 10

Pangda 12 Inch/ 30 cm Junior T-Square Plastic Transparent T-Ruler

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Pros:

  • Heavy-duty and solid construction
  • Easy to read with a line that’s printed in black
  • Comes with anti-dust covers
  • Designed for colored and black pencils, pens, and markers
  • A life-long warranty

Cons:

  • Not really suitable for children
  • The ruler could break easily if you draw hard

Any artist worth his/her salt knows the ever-so-important qualities of a good measuring tool. After all, drawing the straightest line is half the work. But when you need a straight line to your work, you need the best T-square ruler available to ensure accuracy and professional quality lines.

If you’re looking for the best T-square ruler money can buy, then look no further. This junior 12 inch / 30cm one from Pangda is made with an anti-dust acrylic cover that offers both protection and visibility. It’s great for kids who like to use colored pencils and markers and promises accuracy.

6. PRO ART WSCR-4Pro Art 18-Inch Wood T-Square

Our rating: 8 / 10

PRO ART WSCR-4Pro Art 18-Inch Wood T-Square

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Pros:

  • Well-made with a traditional design
  • Precise markings
  • Includes a plastic ruler
  • Sturdy case
  • Includes a hard slipcover

Cons:

  • The depth of the rulers are slightly off in some cases
  • The case does not store rulers vertically

If you’re looking for a high-quality T-square that’s made from a sturdy wood material and includes a plastic ruler as well, then our top pick has to be the Pro Art 18-Inch Wood T-Square. Designed to be lightweight and durable, this t-square is made of high-quality hardwoods, maple, and birch for strength and longevity. The T-square measures 18 inches, and the usable ruler length is 16 inches.

It’s ideal for all kinds of marking and drawing such as drafting, measurement, layout and carpentry. This model features both metric and imperial measurements. It includes a hard slip cover made of durable polyester that’s perfect for taking it on the go or storing it in a drawer.

The Pro Art 18-Inch Wood T-Square has a traditional and timeless design that holds up well to use and abuse. It’s great for kids that are just learning how to draw large objects like the shape of a house or tree.

7. Ludwig Precision 48" Heavy-Duty Aluminum T-Square

Our rating: 8 / 10

Ludwig Precision 48" Heavy-Duty Aluminum T-Square

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Pros:

  • Made in the USA
  • 2-inch wide ruled edge
  • Precision laser-cut tip
  • Versatile for carpentry, woodworking, and drawing
  • Strong and durable

Cons:

  • No protective case
  • Thickness makes it difficult to store in smaller spaces

If you’re looking for the best t-square ruler for layout and drafting, this is the model for you. The Ludwig Precision T-Square has a European design with a flat cutting edge and heavy brass telescoping arms that facilitate accurate and repeatable adjustments, making it perfect for design tasks.

The arms lock in place for easy positioning, and then they slide easily for measuring diagonals, isosceles triangles, and more. This construction allows you to make instant adjustments when you move from one layout to another. One thing that’s interesting about this T-Square is that it’s made in the USA, and many people prefer to buy products made in the US because of the superior craftsmanship and the quality control measures they have in place. This model is essentially a high-end framing square, but it can be used for any type of carpentry or drawing task – ideal for the serious DIY-er.

8. PRO ART 18-Inch Aluminum T-Square

Our rating: 8 / 10

PRO ART 18-Inch Aluminum T-Square

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Pros:

  • Lightweight yet very durable
  • Self-aligning blade
  • Sturdy construction
  • Easily extends for large cuts
  • Ergonomic handle
  • Made in the USA

If you’re looking for the best t-square ruler, there’s no better way to go than with the PRO ART 18-Inch Aluminum T-Square. It’s a little on the expensive end, but it’s worth it considering all that you’re getting.

It has a lightweight aluminum construction that has been paired with a self-aligning blade for accuracy. The blade has a measuring grid on both sides, so you can make cuts in both directions. The inbuilt design makes the ruler fully extendable to 18 inches, so you don’t have to worry about dragging large pieces across your work area.

The PRO ART t-square has a vinyl base and handle for increased comfort. The handle is also designed to prevent your hand from slipping. You also get a non-slip beveled edge that makes the ruler easy to clean up after use. All in all, a very good pick for the best t-square ruler on the market in 2018.

9. Helix Plastic T-Square 12 inch / 30cm

Our rating: 7 / 10

Helix Plastic T-Square 12 inch / 30cm

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Pros:

  • Easy to use
  • Highly accurate
  • Ideal size for most projects
  • Angles can be sharpened in order to glide on paper more easily
  • Available in 3 lengths
  • Comes in various colors
  • Doesn’t need to be oiled
  • Protected by a lifetime warranty
  • Doesn’t slip when in use
  • Comes with a firm carrying case

Cons:

  • Only available in metric
  • A bit pricey for the quality
  • Accurate to within 0.05mm
  • Lightweight plastic
  • A lot of plastic used in construction

A common sight in the classroom, the t-square is a useful tool for several aspects of art and carpentry. This version from Helix has been designed specifically with efficiency in mind. It has been made to serve as an extension of your hand, allowing you to achieve accurate measurements with less effort than what you’d normally get from a metal t-square.

10. Alvin, Transparent Edge T-Square

Our rating: 6 / 10

Alvin, Transparent Edge T-Square

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Pros:

  • Injection molded body
  • Steel triangular head
  • 2-Piece removable metal frame
  • 2-Piece metal frame
  • 45-degree angle measurement markings
  • Comes with a useful angle guide
  • One-year manufacturer’s warranty

Cons:

  • Findings are not sturdy
  • Assembling the ruler could be difficult

Long, 1 x 2 Inch Edge with 2-Piece Metal-Framed.

While the name of the product might be a little confusing, it’s actually pretty simple. This product is a T-square made by Alvin, which is a well-known manufacturer of drafting tools. This particular model is 24 inches long and 1 x 2 inches in size. The body of the ruler is made from injection-molded acrylic and the frame is made from anodized aluminum.

The T-square is highly accurate, and for those who work with numbers regularly, the 45-degree angle markings should come in handy. It can be quite difficult to get the measurements right in the first place, so having a set ruler with such markings will come in handy. The additional angle guide is also extremely helpful as it provides you with some extra tools to help you get the desired measurements.

Frequently Asked Questions (FAQ)

How do you use the T square ruler?

Because the T square is mainly used for measuring angles, the most common use of it is for drawing straight lines on your drawings. It can be hard to draw straight lines on an angle with just a pencil. A T square is a tool that¡¯s used to ensure that your lines are flat, even and straight.

Another use is to use it to make sure that the angle you plan on drawing will actually be a straight line. For example, when drawing houses, a lot of times you wonʼt want the gable end to be on the same plane as the rest of the roof. You have to make sure that the T square is twisted 90 degrees before making a mark, because otherwise you will get a curved line instead of a straight one. You can always double check with the T square after you draw to see if it is straight.

What is the best combination square?

Combination squares are the most useful all-around tools in a woodworker's or DIYer's arsenal. You can use them as a ruler to measure, look at reference edges and line it up with the edges to check if you're square, and use it as a marking tool.

For these reasons, any woodworker would benefit from owning one or two.

What is at square ruler?

A T-square measures the length and the angle simultaneously. Square rulers are usually composed of a dull metal, rectangular or square-shaped sharp steel blade with a handle at each end

T-square rulers are made of aluminum and come in a variety of sizes. The four basic types are: 3„ T-square, 6„ T-square, 12„ T-square, and 18„ T-square.

You may also find a double T-square ruler which is a combination of both. The standard width of these rulers are usually 24„ or 36„.

They are best for joining two pieces of wood edge-to-edge or in 90-degree angles with a square-ruler.

What are the 3 types of T Square?

{1}. A T-Square is a combination of a triangle and a ruler. It is one of the drawing tools available on the market. The long side of the triangle is aligned with the base of the T-Square. And the triangle’s edge is parallel to the ruler.
{2}. It can be divided into two types: the large T-Square and the small T-Square:

A large T-Square, also known as the right triangle, is ideal for solving a triangle. It is a tool used by builders and machinists.

A small T-Square is the most commonly used T-Square. It is used by both professionals and DIY enthusiasts.

There are two major types of T-Squares:

One for Architectural Drawing and the other one for Mechanical Drawing.

T-Squares for Architectural Drawing are used for vertical and horizontal lines in a drawing.

Conclusion

What makes a good t-square ruler? A convenient ruler with plastic edges for increased durability. A good ruler needs to be able to take a lot of abuse while still providing accurate measurements, and the best ruler will have repeatable edges so that you don’t have to keep taking measurements. A good ruler will also be easy to use. The best t-square rulers should last you over a long time, and a good t-square ruler will let you take measurements easily.

Our Recommendation

NameCategoryProduct
Alvin, Aluminum Graduated T SquareBest OverallAlvin, Aluminum Graduated T Square
Pangda 12 Inch/ 30 cm Junior T-Square Plastic Transparent T-RulerBudget PickPangda 12 Inch/ 30 cm Junior T-Square Plastic Transparent T-Ruler
Ludwig Precision 48" Heavy-Duty Aluminum T-SquareUpgrade PickLudwig Precision 48" Heavy-Duty Aluminum T-Square