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T-Squares (38 Styles Available)

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T-Squares (38 Styles Available)

  • Ships Factory Direct
  • Full Manufacturer Warranty
  • 30 Day Money Back Guarantee
  • Price Match Guarantee

Frequently Asked Questions

What is a drafting T-square?

A T-square is a technical drawing instrument with a shape that resembles the letter “T.” It consists of a blade, which is a long graduated shaft, and a stock, also called a head or short shaft.

What are the uses of a T-square?

A T-square is used as a guide for making straight horizontal lines. It can also serve as a guide for a set square for drawing vertical or diagonal lines.

What is the stopping rocker for a T-square?

A stopping rocker is a built-in component of some drafting boards. This component can lock the head of a T-square onto the edge of the drafting board and keep the instrument stable.

How do I use a T-square when working on drywall?

First, place the T-square vertically against the drywall and set its head on the upper edge of the material. Then, using the T-square’s graduations, make the necessary measurements and mark them on the material. Finally, securely hold the T-square against the drywall and cut the material along the marked measurements.

Which type of T-square is better: one that’s attached with screws or one that’s attached with glue?

A T-square that is composed of a head attached to the blade with screws or rivets is better than one that makes use of glue. Screws or rivets ensure a more stable attachment and a long-lasting drafting T-square.


Drawing lines horizontally, vertically, or diagonally cannot be done with the use of rulers alone. Without a steady base, drawing with straight edges, even those with non-slip back surfaces, may possibly result in lines being drawn all over the place. This is why a T-square is an essential tool for technical drawings. The head at the end of its shaft can be used to securely hold the T-square at the edge of the drawing table, while its long blade can serve as a support for other drafting tools such as triangles and rulers. In addition to this convenient function, it can also help in drawing straight lines and checking measurements. 

T-squares, which are available here on Engineer Warehouse, feature calibrations on their edges so that users can draw with accurate measurements. The long blades also have smooth, straight edges for drawing lines as straight as an arrow. Made of durable wood or aluminum, some of these T-squares can also be used for measuring and cutting drywall without getting damaged. They come in different sizes ranging from 12 to 48 inches, perfect for various applications.



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