Builders Squares

If you’re looking for a builders square, framing square, combination square, or drywall square, you can find what you need at Engineer Supply. We have a variety of models from top-rated manufacturers, and all of them are built with the professional in mind. Feel free to look at what we have in stock, so you can find a tool that will meet your specific needs.

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Johnson Level 16" x 24" Big J Pro Stainless Framing Square (CS12)

ES9049

$21.99

Johnson Level CS18 - 400mm x 600mm Big J Pro Metric Aluminum Framing Square

ES5013

$34.99

Johnson Level 16" x 24" Black Aluminum Filled Rafter Square - CS7

ES5014

$21.99

Johnson Level CS13 - 400mm x 600mm Metric Steel Framing Square

ES5017

$13.99

Johnson Level Contour Gauge 2206

ES4790

$14.99

Johnson Level 54" Aluminum Drywall T-Square with Extra-Thick Blade JTS54HD

ES4982

$79.99

Johnson Level 6" Inch/Metric Professional Combination Square - 406EM

ES5046

$13.99

Johnson Level 48" Adjust-A-Square Heavy Duty Aluminum Adjustable T-Square - ADS48

ES5026

$38.99

Johnson Level 8" Professional Carbonized Bamboo Try Square 1940-0800

ES4899

$14.99

Johnson Level 10" Professional Carbonized Bamboo T-Bevel 1926-1000

ES4898

$14.99

Johnson Level 48" Aluminum Drywall T-Square with Extra-Thick Blade JTS48HD

ES4983

$26.99

Johnson Level 1200mm Aluminum Metric Drywall T-Square JTS1200

ES4986

$54.99

Johnson Level 48" Aluminum Drywall T-Square JTS48

ES4985

$18.99

Johnson Level 12" Heavy Duty Combination Square 400

ES4765

$13.99

Johnson Level 24" RockRipper RTS24

ES4955

$64.99

Johnson Level 12" Aluminum Rafter Angle Square RAS-120

ES4972

$19.99

Johnson Level 12" Inch/Metric Metal Combination Square - 400EM

ES5047

$13.99

Johnson Level 7" Johnny Square Professional Easy-Read Aluminum Rafter Square 1904-0700

ES4893

$14.99

Johnson Level 12" Orange Structo-Cast Rafter Angle - Square RAS-170B-ORA

ES4971

$9.99

Johnson Level 16" x 24" Professional Easy-Read Steel Framing Square - CS9

ES5012

$11.99

Johnson Level 16" Inch/Metric Heavy Duty Combination Square - 420EM

ES5044

$21.99

Johnson Level 16" x 24" Aluminum Rafter Square - CS5

ES5015

$15.99

Johnson Level 8" Professional Aluminum Tri-Square 1908-0800

ES4894

$14.99

Johnson Level 16" x 24" Steel Rafter Square - CS2

ES5018

$11.99

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Builders Squares Features

Read our Helpful Article: What are the main tools used in building construction

Variety of tools

Professional grade

Simple to use

Quality manufacturing

Durable design

Related Categories

Rulers and Straightedges

Helpful Videos

Watch and Learn with our product videos

ALUMNICOLOR T-SQUARE ASSEMBLY

The assembly system for this T-square uses an auto-screwdriver system with a vibrating screw feeder, which allows for the quick and efficient placement of each screw. Each one travels through the tube to the screwdriver, while the T-square head is put into the jig to ensure accuracy. Each pack has six T-squares per layer, which is used to fill a box of 60 units. A clear sticker holds the poly sleeve on, while the cardboard protects the head from scratches. The shafts are also tied together to prevent sliding.

HOW TO MEASURE THE SLOPE OR GRADE?

Slope is calculated by finding the ratio of the “vertical change” (rise) to the “horizontal change” (run) between any two points on the same line, and it’s signified by the letter “m.” You divide the change in the Y-axis (the vertical change) by the change in the X-axis (horizontal change), and the final number will be referenced as a percentage (which can be calculated by multiplying the final result by 100).

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PROFESSIONAL-GRADE BUILDERS SQUARES FROM TOP-RATED MANUFACTURERS

If you’re looking for a professional grade builders square that you can use on the job site, Engineer Supply has a variety of tools from top-rated manufacturers. All of our products are built for professionals, so you can be sure to get a tool that will give you years of extended use. We know that professional contractors need to have quality tools, which is why we offer some of the best products on the market. If you’re ready to purchase a speed square that you can add to your toolbox, be sure to look at what we have in stock.

A VARIETY OF TOOLS TO MEET A VARIETY OF NEEDS

Whether you’re looking for a builders square, drywall square, or combination square, you can find what you need at Engineer Supply. We have a variety of models that can meet a number of needs, and we can offer them to you at a price you can afford. That’s why we’re one of the best places to purchase construction and contractor tools online. Feel free to look at what we have in our store, so you can find a tool that's right for you!

Frequently Asked Questions

How do I use a speed square?

Here are some ways that you can use a speed square:

As a saw guide — This kind of builders square can be used to keep your circular saw straight and true as you cross-cut lumber. Just place the lip of the square on the outer edge of the wood, line up the saw shoe against the straight edge of the square, and cut.
To draw lines — If you need to draw a guideline for cutting wood so you can make a rip cut, you can use a speed square as a straight edge. Just place the square lip along the outer edge of the board, place the tip of your pencil inside one of the notches, and you’ll have a straight line that’s ready to cut.
As a roof pitch tool — You can use this builders square to determine the pitch of a roof, which is useful for installing skylights, designing an addition, or getting an estimate for a replacement. If you use it with a level, you’ll be able to get a rough estimate of your roof’s pitch angle.
As a square checker — While you may use another tool (such as a combination square, framing square, or tri square), you can use this kind of builders square for this purpose if you don’t have immediate access to any other tool.
As a protractor — You can use a speed square to measure any angle you need for making cross cuts. You can measure a 90-degree angle with the straight edge, a 45-degree angle with the miter square, and all the others with the straight edge and pivot point.

No matter what kind of job you need to do, learning how to use this builders square is a valuable skill.

What is the common on a speed square?

The word “common” refers to the common scale, which is the same as the degree scale coming in from the hypotenuse. It has numbers that range from 1 to 30, and it can be used to read pitch angles (which is measured by “rise over run").

Who invented the speed square?

This kind of builders square was invented 1925 by Albert Swanson. The term is a trademarked name. But like Kleenex, it’s often used as the general name for this kind of tool. Stanley makes a similar tool called a “Quick Square,” and Irwin’s is referred to as the “Rafter Square.”

How do I use a drywall square?

You can use a drywall square by performing the following steps:

Set up the square on the plaster board by aligning the stock with the edge of the drywall. The blade will run down the surface.
Measure where you want to cut, and mark it using the hash marks along the blade.
Hold the square securely in place, and use the blade as a straight edge so you can cut the material along your mark.

If you’re looking for a drywall square that you can use on your next project, be sure to look at what we have at Engineer Supply.

Where can I buy a quality builders square?

If you’re looking for one of the best places to buy a drywall square or any other kind of builders square, you can find what you need at Engineer Supply. We have a variety of tools that can be used for construction and engineering, so feel free to look at what we have in our store.