Merchant & Mills : The Thelma Coverall Boilersuit Pattern
A traditional workwear boilersuit with a gentle fit.
Thelma is a wardrobe masterpiece that can be interpreted in many different types of cloths, so make it your own.
Thelma will take time to put together, but make it well and wear it absolutely everywhere.
Skill Level: Experienced
Sizes: This is a multi-size paper pattern that comes in two size ranges, please ensure your selection reflects desired fit.
*See images for more sizing information and fabric requirements.
Suggested Fabrics: medium weight wovens such as sanded twill, 5 – 8oz denims, yard dyed linens with some stability, and cotton poplin. If you are an experienced sewer you could try tencel, tencel/linen, corduroy, more floppy linens, prints and checks.
Additional Supplies:
- 18 x 14-18mm Buttons (only 16 buttons if you intend on just using one button at the cuff)
- 2 x Matching thread
- 70cm Interfacing
All seam allowances are 1.5cm unless stated otherwise and are included in the pattern.
Pattern Errata:
Front leg (4) it says on the pattern piece ‘cut here for right side’ should say ‘left’. However the instructions are correct.
The tack on the under arm sleeve (at the cuff) the sizing is the wrong way round.
Merchant & Mills
Merchant & Mills is a UK-based company celebrated for its beautifully curated range of high-quality fabrics, sewing patterns, and expertly crafted notions. Founded in Rye, East Sussex, Merchant & Mills champions a minimalist and functional approach to garment making, emphasizing timeless style and craftsmanship. Known for its thoughtfully designed patterns and sustainable fabric collections, the brand empowers makers with tools and materials to create durable, elegant, and practical clothing. Whether you’re a beginner or a seasoned sewist, Merchant & Mills inspires creativity with an ethos of quality and simplicity.
Shop News
Printed & Inspired : Summer Is Here!
Summer has finally arrived and warm weather sewing patterns are starting to appear from our wide format printer. Summer dresses and tunics for staying cool and patterns for upcoming virtual classes with us are proving to be popular however surprisingly pants are the clear winner recently. From flowing wide legs to structured barrel jeans everyone appears to be making pants right now.
We love discovering new indie pattern designers along with you through our A0 PDF Printing Services. Below are a few of the A0 PDF patterns we printed since the beginning of May, maybe they’ll inspire your next make too!
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Madswick - Delft Dress
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True Bias - Lander shorts
- Tauko - Panel Trousers
- Merchant & Mills Tee Shirt
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BF Patterns - Sabrina Skirt
- Allie Olson - Ponderosa Pants
- Just Patterns - Kiara Knit Dress
- Sew Liberated - Studio Tunic
- Merchant & Mills Sanda Jacket
- Helen's Closet - Falconer Pants
- Love Notions - Opus Vest
- Thread Theory - Jutland Pants
All of these patterns came through our A0 PDF pattern printing service - a wonderful way to explore new designers and level up your handmade wardrobe. If you haven’t tried it yet, it’s simple to upload your files and we’ll print, fold, and ship them right to you or choose local pick up at our Parkdale Pick up Point or here in Sprucedale.
Printed & Inspired : Me Made May
Happy Me Made May! It's that time of the year when the sewing community wears and shares our handmade wardrobe online and in person. This month is a great opportunity to get inspired and to discover new makers and patterns you'd like to try.
Printed & Inspired : Spring Dresses & Cozy Jackets
There’s something empowering about sewing from a PDF pattern. Instant access. No waiting. A whole new world of independent designers at your fingertips. We love discovering new indie pattern designers along with you through our A0 PDF Printing Services.