
STEELCRAFT AT ASHBY LUMBER
At Ashby Lumber, we proudly offer Steelcraft® hollow metal doors and frames—industry-leading solutions designed for strength, security, and lasting performance. Engineered to meet the demands of commercial and institutional environments, Steelcraft® products deliver exceptional durability without compromising on design versatility. Backed by decades of innovation and trusted across a wide range of sectors, Steelcraft® sets the standard for quality in hollow metal construction. Partner with our expert team to find the ideal Steelcraft® solutions tailored to your project’s specifications.
Why Choose Steelcraft® at Ashby Lumber?
Reliability
Manufactured using high-quality materials and advanced bonding techniques, Steelcraft® doors are build to perform in high-traffic, and high-security environments
Compliance
Steelcraft® meets or exceeds the latest fire, acoustic, and environmental standards, offering peace of mind for safety and code adherence.
Versatility
A broad portfolio accommodates virtually every wall condition, design specification, and performance requirement, including fire-rated, STC-rated, and blast resistant options.
Support
With detailed documentation and responsive support from Allegion™, Steelcraft® ensures smooth integration into new construction or retrofit projects.







Exploring Steelcraft® Door Solutions

Commercial Hollow Steel Collection
Construction: Heavy-duty L-Series™ full-flush doors (light to 14ga maximum duty) with continuous laminated core bond for flat appearance
Series Options: Includes SZ, L-Series™, B-Series™ (honeycomb), and CE-Series™ (stile-and-rail) variants
Frame Compatibility: Compatible with F-Series™ flush frames and K-Series™ drywall frames, both KD and welded
Customization: Options for vision lites, louvers, H-Series™ hurricane impact, and more
Durability: Designed to resist impacts, warping, and wear in high-traffic environments
Thermal Control: Low thermal conductivity helps manage energy transfer
Security: Structural steel construction supports heavy-duty architectural hardware
Compliance: Meets ANSI/SDI, ASTM, and UL® standards; SDI-certified and Made in the USA
Sustainability: Supports LEED® and green building criteria
Coverage: Backed by a limited manufacturer’s warranty
Certifications: SDI® certification; consistent quality from U.S. manufacturing
Support: Full technical documentation and installation guidance available

Fire-Rated Collection
Labeling: UL®-labeled hollow metal doors and frames with fire ratings from 20 minutes up to 3 hours
Configurations: Available with sidelites, transoms, and multiple wall-type frame options (F-Series™, K-Series™, MU-Series™)
Self-Closing Kits: Compatible with certified self-closing and positive-latching hardware
Wall Integration: Engineered for masonry or drywall applications
Fire Resistance: Hollow metal doors uniquely offer 3-hour UL® labels; help contain fire and smoke
Code Compliance: Meets IBC, NFPA 80, and SDI 118 standards
Structural Integrity: Retains form and function under extreme heat
System Compatibility: Integrates with full Allegion™ fire door systems
Certification: Includes UL® documentation and test verification
Manufacturer Support: Backed by Allegion™
Testing Assurance: Independently tested to meet certified fire safety ratings
Maintenance Guidelines: Provided for ongoing fire door inspections

Acoustical (STC) Collection
Core Construction: Laminated or honeycomb core designed for STC-rate performance
Seal Systems: Integrated gasketing and thresholds reduce airborne sound transmission
Design Options: Customizable with vision lites, louvers, and finishes
Frame Match Compatible with standard or specialized Steelcraft® frame series
Sound Control: STC ratings from 35 to 50+ minimize sound transfer across environments
Acoustic Integrity: Ideal for conference rooms, healthcare, and educational settings
Durability: Maintains seal effectiveness under repeated use
Tested Standards: Complies with ASTM E90 and SDI 128 acoustic specification
Assurance: Covered under Steelcraft®’s limited performance warranty
Certification: Includes third-party tested STC documentation
Installation Support: Field assistance for achieving optimal acoustic seal
Why Choose Ashby Lumber?
At Ashby Lumber, we don’t just supply materials—we provide solutions. Our expert team is here to guide you through the process, ensuring you select the perfect Steelcraft® products for your project. With decades of experience serving Bay area homeowners, contractors, and builders, we’ve earned a reputation for exceptional service and quality.

Transform Your Space with Steelcraft® Products From Ashby Lumber
Visit us at our Berkeley or Concord locations, or contact us to schedule a consultation with our experienced team. Let us help you bring your vision to life with Steelcraft®’s exceptional products.

As a leading provider of doors and windows in Berkeley, Concord, and the wider East Bay, Ashby Lumber is committed to helping you find the ideal solutions for your commercial or institutional project. Our Berkeley and Concord showrooms feature a carefully selected range of high-performance steel door and frame systems—engineered to meet the highest standards of security, durability, and code compliance.
We’re proud to offer Steelcraft®, a brand recognized for setting the industry benchmark in hollow metal door and frame construction. From the robust design of the L-Series™ and B-Series™ commercial doors to the certified protection of fire-rated assemblies and the sound control of STC-rated acoustical systems, Steelcraft® delivers unmatched performance and reliability. Whether you’re outfitting a school, healthcare facility, office, or retail space, our knowledgeable team is here to assist you at every stage—ensuring your door system not only meets performance requirements but stands the test of time.