T-Squares

Shop standard, heavy-duty aluminum and stainless steel T-squares. Compare available blade lengths and choose the size that fits your work.

Choose a tool below to see its available sizes.

Family photo: 24″ T-square

Inch scale

Heavy-Duty Aluminum T-Square

24", 36", 42" + 2 more sizes

From $29.93

Available to order Choose size →

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Heavy-Duty Drafting Stainless Steel T-Square

18", 24", 30" + 3 more sizes

From $16.63

Available to order Choose size →

Family photo: 12″ T-square

Inch scale

Standard Aluminum T-Square

12", 15", 18" + 1 more sizes

From $12.19

Available to order Choose size →

Standard or heavy-duty aluminum?

Both register a fixed head against a straight board edge for perpendicular drafting and pencil/pen layout. Choose a blade that spans the drawing while remaining supported by your surface.

Standard Aluminum T-Square

For everyday drafting spans; compare its smaller blade/head with the heavy-duty alternative.

12" · $12.19 each
SKU T-012-LAN

Blade width: 38.1 mm

Head length: 228.6 mm

View this available 12" size →

Available lengths: 12", 15", 18" + 1 more sizes

U.S. standard: $8.99 USD; free at $50+.

Heavy-Duty Aluminum T-Square

For larger layout spans; compare its wider blade and longer head with the standard alternative.

24" · $29.93 each
SKU HT-024-LAN

Blade width: 50.8 mm

Head length: 406.4 mm

View this available 24" size →

Available lengths: 24", 36", 42" + 2 more sizes

U.S. standard: $8.99 USD; free at $50+.

Compare the dimensions of the size you select with your drawing board.

Compare the distinct stainless-steel alternative and all available T-squares →

Build a drafting combination

A registered straight line, plus the angles you use

A T-square establishes the board-edge reference. A triangle rests against its blade to guide perpendiculars and the triangle’s stated angles. Add the second geometry only if your drawing calls for it.

Includes the selected rulers, supplied individually. Add your own drawing board, paper and pencil.