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How to copy t shirts?

Published in Garment Patterning 4 mins read

To copy a t-shirt, you will essentially create a new pattern from an existing garment that fits you well, and then use this new pattern to cut and sew a replica. This process allows you to reproduce favorite styles or adjust existing designs.

Materials You'll Need

Before starting, gather the necessary supplies to ensure a smooth pattern-making and sewing process.

Item Purpose
Well-fitting T-shirt The garment you intend to copy.
Pattern Paper For tracing the t-shirt's individual pieces.
Fabric Your chosen material for the new t-shirt.
Fabric Scissors For precise cutting of fabric.
Pins To hold fabric pieces together before sewing.
Measuring Tape/Ruler For accurate measurements and adding seam allowances.
Pencil/Marker For tracing the pattern onto paper.
Sewing Machine To stitch the fabric pieces together.
Thread Matching or contrasting thread for sewing.
Iron & Ironing Board For pressing seams and finishing touches.

Step-by-Step Guide to Copying a T-Shirt

The process involves meticulously tracing your existing t-shirt, creating a reusable pattern, and then assembling your new garment.

1. Prepare Your Garment and Workspace

Choose a t-shirt that fits you perfectly, as this will be the blueprint for your new garment. Lay it flat and smooth on a large, clean surface. Ensure you have enough pattern paper to accommodate all parts of the t-shirt.

2. Trace the Main Pattern Pieces

Begin by selecting a major pattern piece, such as the front or back of the t-shirt. Carefully lay it flat on your pattern paper, smoothing out any wrinkles. Trace precisely around its edges with a pencil or marker. Remember that t-shirts often have a folded edge (on the body or sleeves) that implies a symmetrical piece. For example, you might trace half the front piece on the fold of the paper to create a full front panel.

3. Continue Tracing All Components

Systematically trace all remaining pieces of the t-shirt. This typically includes:

  • Front Panel: Often cut on a fold.
  • Back Panel: Also frequently cut on a fold, may be slightly different from the front.
  • Sleeves: Usually two identical pieces, often cut on a fold.
  • Neckband/Collar: This is a crucial piece for the neckline.

Pay close attention to details like neckline curves, sleeve cap shapes, and the curve of the side seams. Mark any specific details like darts or pleats if your t-shirt has them, though most basic t-shirts do not.

4. Assess and Refine Your New Pattern

Once all pieces are traced, carefully cut them out from your pattern paper. This is a critical step to ensure accuracy.

  • Add Seam Allowance: Your traced pattern pieces represent the finished size of the t-shirt. You must add a seam allowance (typically 1/2 inch or 5/8 inch) around all edges that will be sewn. This is crucial for the new t-shirt to fit correctly.
  • Label Pieces: Label each pattern piece (e.g., "Front," "Back," "Sleeve") and indicate which edges are to be placed on a fabric fold.
  • Check for Symmetry: If you traced half a piece to be cut on a fold, ensure the full piece will be symmetrical when opened.

5. Cut Your Fabric

Lay your chosen fabric flat and smooth. Pin your new paper pattern pieces onto the fabric, aligning any "on fold" edges with the fabric's fold. Carefully cut out all the fabric pieces according to your refined pattern.

6. Sew Your New T-Shirt Together

Using a sewing machine, begin assembling your new t-shirt following standard garment construction techniques.

  • Shoulder Seams: Sew the front and back pieces together at the shoulder seams.
  • Neckband: Attach the neckband to the neckline. This often involves stretching the neckband slightly to fit the neckline curve.
  • Sleeves: Insert the sleeves into the armholes.
  • Side Seams and Underarm Seams: Sew the side seams and the underarm seams in one continuous stitch.
  • Hems: Finish the bottom hem of the t-shirt and the sleeve hems.

7. Finishing Touches

Press all seams open or to one side with an iron for a professional finish. Trim any excess threads. Give your new t-shirt a final press to smooth out any wrinkles.

By following these steps, you can successfully create a new t-shirt that mimics the fit and style of your favorite existing one.