Professional-grade steel box corners designed for rapid construction of light control boxes, softboxes, and custom grip solutions. Available in 1" and 1-1/4" sizes with welded threaded sockets and durable powder coat finish.
Transform the way you work on set with Matthews Studio Equipment's Three Way Box Corners—the industry's go-to solution for fast, reliable box construction. Whether you're tenting a window for light control, building a custom softbox, or creating specialized grip solutions, these rugged corner connectors deliver professional results every time.
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Built for the Demands of Professional Production

Engineered from solid rectangular steel tubing, Matthews Three Way Box Corners are designed to withstand the rigors of daily professional use. Each corner features smooth edges for safety, welded 3/8" threaded sockets for secure connections, and a black satin powder coat finish that looks professional and resists wear.
Versatile Applications
- Window tenting for blocking or filtering light
- Custom and standard softbox construction
- Overhead flying frames
- On-location light control solutions
- Custom grip configurations
- Endless creative applications
Available in Two Professional Sizes
- 1" Three Way Box Corner - Ideal for lighter applications and compact builds
- 1-1/4" Three Way Box Corner - Perfect for heavy-duty construction and larger frames
The Matthews Difference
For 50 years, Matthews Studio Equipment has been the trusted name in camera and lighting support hardware. Used on productions in over 90 countries, MSE equipment has earned recognition from both the Academy of Motion Picture Arts and Sciences and the Academy of Television Arts and Sciences for Technical Achievement. When you choose Matthews, you're choosing equipment that professionals rely on every day.
Key Features
- Solid steel rectangular tubing construction
- Welded 3/8" threaded sockets for secure mounting
- Smooth, safety-conscious edges
- Durable black satin powder coat finish
- Two size options for maximum versatility
- Made in the USA at MSE's state-of-the-art Burbank facility
Who Uses Matthews Equipment?
Film crews, television studios, photographers, event production companies, and content creators worldwide trust Matthews for reliable, professional-grade grip solutions.
Specifications
| Specification | Details |
|---|---|
| Material | Solid steel rectangular tubing |
| Finish | Black satin powder coat |
| Socket Size | 3/8" threaded (welded) |
| Available Sizes | 1" and 1-1/4" |
| Construction | Welded steel with smooth edges |
| Manufacturer | Matthews Studio Equipment (USA) |
| Price | $40.00 |
Quick Features
- Solid steel construction for maximum durability
- Welded 3/8" threaded sockets ensure secure connections
- Black satin powder coat finish resists wear and looks professional
- Available in 1" and 1-1/4" sizes for versatile applications
- Perfect for building softboxes, light control boxes, and custom frames
- Made in USA by industry-leading Matthews Studio Equipment
- Backed by 50 years of manufacturing excellence
- Smooth edges for safe handling on set
Product Benefits
Save Time on Set
Quickly construct professional light control solutions without complicated assembly
Built to Last
Solid steel construction means these corners will serve you for years of productions
Versatile Problem Solver
One tool, countless applications—from softboxes to window tents and beyond
Professional Quality
Trusted by major studios and productions in over 90 countries worldwide
Safe and Reliable
Smooth edges and secure welded sockets protect both crew and equipment
Frequently Asked Questions
What size tubing do these corners work with?
The 1" corners work with 1" diameter tubing, and the 1-1/4" corners work with 1-1/4" diameter tubing. Match your corner size to your tubing diameter for proper fit.
Can these be used outdoors?
Yes! The powder coat finish provides excellent protection against the elements, making them suitable for both studio and location work.
What connects to the 3/8" threaded sockets?
The threaded sockets accept standard 3/8" grip hardware including studs, spigots, and mounting accessories commonly used in film and video production.
Are these compatible with other manufacturers' equipment?
Yes, Matthews uses industry-standard sizing and threading, so these corners integrate seamlessly with professional grip equipment from various manufacturers.
About Matthews Studio Equipment
Matthews Studio Equipment has been the gold standard in grip and lighting support for over 50 years. With two Presidential "E" Awards for export excellence and recognition from both the Motion Picture and Television Academies for Technical Achievement, Matthews continues to innovate solutions that make production professionals' work easier and more efficient. Matthews equipment is manufactured at their state-of-the-art facility in Burbank, California, where American craftsmanship meets cutting-edge engineering.