Curved T-Square — Pattern Making Tool

Create Accurate Right Angles and Clean Pattern Intersections

The Curved T-Square is a specialized Sure Fit Designs patternmaking tool created to help makers establish accurate 90-degree angles, refine seam intersections, and measure detailed pattern areas with greater confidence.

Whether you are refining a sloper, adjusting a hem, squaring a seam, or developing a pattern detail, the Curved T-Square gives you a clear and reliable way to improve accuracy at the drafting table.

Tool Specifications

Dimensions: 7" x 2¼"  |  Material: Clear acrylic 

Why the Curved T-Square Matters

Small drafting errors can affect the way pattern pieces meet, how seams align, and how a finished garment hangs.

The Curved T-Square helps you check and establish true right angles at important pattern intersections so you can work with greater precision from the beginning.

It is especially useful when working with:

• Hems and cuffs
• Seam intersections
• Center front and center back lines
• Waist and side seam junctions
• Pattern extensions
• Square corners
• Pattern alterations and refinements
• Grading and measurement adjustments

Designed for Precise Patternmaking

The clear acrylic construction allows you to see the pattern beneath the tool while you measure and align.

Its compact size makes it especially practical for detailed work, while the curved top provides an additional shaping surface for smooth transitions and pattern refinement.

Key Features

• Imperial and metric measurement markings
• Helps establish accurate 90-degree angles
• Useful for 3/8-inch and 1/2-inch seam allowance work
• Clear construction for easy alignment
• Compact size for detailed pattern areas
• Durable for repeated studio, classroom, and professional use

An Essential Companion for Sure Fit Designs Master Pattern Kits

The Curved T-Square works alongside the Sure Fit Designs Dress, Pants, Shirt, and Children’s Master Pattern Kits to help you square seams, refine intersections, and develop accurate pattern lines at every stage.

Frequently purchased together: Pair the Curved T-Square with the Sure Fit Designs Master Pattern Kits — including the Dress, Pants, Shirt, and Children’s Kits.

For Makers Who Value Accuracy

The Curved T-Square is ideal for:

• Home sewists creating custom-fit garments
• Pattern makers and garment designers
• Sewing and fitting instructors
• Fashion design students
• Tailors and custom clothing professionals
• Alteration specialists
• Makers refining commercial patterns
• Anyone working with Sure Fit Designs slopers and pattern systems

Better Alignment. Cleaner Patterns. Greater Confidence.

At Sure Fit Designs, precise tools support a larger goal: helping makers understand how fit, pattern shape, and construction work together.

The Curved T-Square helps you create cleaner intersections, more balanced pattern lines, and more reliable adjustments so you can move from fitting decisions to finished patterns with greater confidence.