Bernina Lap Seam Foot #71

The BERNINA Lap Seam Foot #71 is a specialized presser foot designed for sewists working with medium to heavy-weight fabrics who need to create professional lap seams and flat-felled seams. This foot excels at creating reversible garments, jeans, sportswear, and any project where both sides of the fabric will be visible, encasing raw edges cleanly within a 6mm lap seam for a polished, durable finish.

Key Features

• Creates precise 6mm lap seams ideal for reversible clothing and garments where both sides are visible
• Features a channel on the left side of the presser foot tip that holds turned-under fabric securely in place during the second line of stitching
• Designed specifically for medium to heavy-weight materials including denim, canvas, and heavyweight cottons
• Encases both raw edges within the seam for a professional finish that prevents fraying
• Enables easy construction of two-step flat-felled seams on jeans and sportswear by sewing layers wrong sides together
• Compatible with BERNINA machines with 5.5mm and 9mm maximum stitch width
• Eliminates the need for hand-basting when creating lap seams, saving time and ensuring accuracy
• Essential tool for creating strong, attractive seams on reversible jackets, vests, and outerwear

Specifications

Specification	Detail
Seam Width	6mm
Fabric Weight	Medium to heavy-weight
Machine Compatibility	5.5mm and 9mm BERNINA machines
Foot Type	Specialty presser foot

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The BERNINA Lap Seam Foot #71 is the perfect choice for sewists who create reversible garments, work with denim and heavyweight fabrics, or want to achieve professional flat-felled seams without tedious hand-basting. OSP Machines is an authorized dealer and provides free support for the life of your machine. You'll receive expert guidance on using this specialty foot to achieve professional results on all your lap seam projects.

Compatibility

Compatible with these Bernina models below: 125, 125 S, 130, 135, 135 S, 140, 145, 145 S , 150, 153, 153 QE, 155, 160, 163, 165, 170, 180, 185, 200, 210, 220, 230, 230 PE, 240, 430, 435, 440 QE, 450, 630, 640, 730 B 215, B 325, B 330, B 335,B 435, B 475 QE, B 480, B 350 PE, B 380, B 530, B 535,B 540, B 550 QE, B 555, B 560,B 570 QE/QEE, B 590, B 580, B 710, B 720, B 740, B 750 QE, B 770 QE/QEE, B 780, B 790, B 790 PLUS, B 820 QE, B 830, B 880, B 880 PLUS

Frequently Asked Questions

What is a lap seam and when would I use this foot?

A lap seam is created when one fabric layer is lapped over another with raw edges encased inside, creating a flat, strong seam visible from both sides. This foot is ideal for reversible garments, jeans, sportswear, and any project where both fabric sides will be seen. It creates a professional 6mm lap seam that's both attractive and durable.

What weight fabrics can I use with the Lap Seam Foot #71?

The Lap Seam Foot #71 is designed specifically for medium to heavy-weight fabrics such as denim, canvas, duck cloth, heavyweight cottons, and similar materials. It's particularly effective for creating flat-felled seams on jeans and constructing reversible outerwear.

How does this foot work to create lap seams?

The foot features a special channel on the left side of the presser foot tip that holds the turned-under fabric edge securely in place while you sew the second line of stitching. This eliminates the need for hand-basting and ensures consistent, accurate seam placement throughout your project.

Is this foot compatible with my BERNINA machine?

The Lap Seam Foot #71 is compatible with BERNINA machines that have a 5.5mm or 9mm maximum stitch width, including the 125, 130, 135, 140, 145, 150, 153, 155, 160, 163, 165, 170, 180, 185, 200, 210, 220, 230, 240, 430, 435, 440 QE, 450, 630, 640, 730 series, and bernette B 21. Check the compatibility list to confirm your specific model.

What's the difference between a lap seam and a flat-felled seam?

Both seams encase raw edges for a clean finish on both sides. A lap seam is created by lapping one fabric over another, while a flat-felled seam involves sewing wrong sides together, then trimming and folding one seam allowance over the other. The Lap Seam Foot #71 makes both techniques easier by holding the folded fabric edge precisely in place during stitching.