Home » The ASSEMBLY LINE • Regular Fit T-Shirt Sewing Pattern (XS - 3XL) • NEW

The Assembly Line Regular Fit T-shirt Sewing Pattern Illustration of Dress Version

The ASSEMBLY LINE • Regular Fit T-Shirt Sewing Pattern (XS - 3XL) • NEW

£21.00

Printed sewing pattern • Sizes XS–3XL • Skill level: Advanced beginner

The Regular Fit T-shirt Sewing Pattern by The Assembly Line is a modern wardrobe essential designed with clean lines, relaxed styling and everyday versatility in mind. A classic T-shirt silhouette with thoughtful design details, this is a dependable pattern you’ll return to again and again.

The design includes multiple sleeve options including short, elbow-length or full-length, allowing you to create garments suited to different seasons and styles. A ribbed neckline gives the T-shirt a traditional finish, while an optional clean neck facing offers a more refined alternative. For added versatility, the pattern also includes the option to attach a skirt and transform the design into an easy-to-wear T-shirt dress.

Designed for jersey fabrics, the relaxed unisex fit makes this a comfortable and wearable staple suitable for a wide range of wardrobes.

Perfect for:

Classic jersey T-shirts and casual wardrobe staples
Advanced beginners looking to build confidence sewing knit fabrics
Relaxed everyday garments with versatile styling options
Modern handmade basics that can be worn year-round

Skill level • Advanced beginner

Pattern details:

Printed sewing pattern with clear, step-by-step instructions
Sizes XS–3XL
Relaxed unisex fit
Three sleeve options: short, elbow-length or full-length
Option to create a T-shirt dress variation
Designed for jersey fabrics

Suggested fabrics: This pattern works best in knit fabrics such as:

Cotton jersey
Viscose jersey
Lightweight sweatshirt jersey
Rib fabric (for neckline)

Soft jersey fabrics with good recovery will create the most comfortable fit and finish.

Fabric requirements • Please see last image for fabric requirements.

You will also need:

Matching thread
Rib fabric for neckline
Optional: fusible interfacing for neck facing

Sewing tips:

Use a stretch needle when sewing jersey fabrics for the best results
Stabilise shoulder seams to help maintain the shape of the garment over time
Consider using the neck facing option for a cleaner, more elevated finish

Why we recommend this pattern: The Regular Fit T-shirt is a brilliantly versatile wardrobe staple with thoughtful options that make it easy to personalise. Simple, wearable and endlessly useful, it’s a pattern you’ll sew many times over.

Part of our curated collection of The Assembly Line sewing patterns, designed for modern, wearable wardrobes.

Browse our full collection of sewing patterns for modern handmade wardrobes.

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