Page 3 - Blog
If you’ve ever ordered the wrong commercial door frame, you know how quickly a project can go off track. In this video, we break down the key differences between knockdown (KD) and welded door frames so you can choose the right option with confidence and avoid delays, rework, and added costs.
Quick Answer: Knockdown vs. Welded Door Frames
The primary difference between a knockdown door frame and a welded door frame is how the frame is manufactured and installed. Knockdown door frames (KD frames) ship in multiple pieces and are assembled on-site, making them ideal for drywall construction, interior commercial doors, and renovation projects. Welded door frames ship as a single welded unit and are commonly used for masonry walls, exterior commercial openings, and high-abuse environments where additional strength and durability are required.
Both knockdown hollow metal frames and welded hollow metal frames are commonly used in commercial buildings, schools, healthcare facilities, warehouses,
Commercial doors can be made with a variety of materials, and door systems are really a combination of parts, doors, frames, and hardware all working together. The metal door frame is one of the most important of those parts, even if it doesn’t always get the spotlight. Choosing the right frame impacts how smoothly your door installs, how long it lasts, and how well it performs over time.
At CDF Distributors, we make frame selection simple by offering purpose-built commercial door frames that are matched to the door type and building conditions. From knockdown door frames to fully welded assemblies, storefront systems, and pre-hung metal building doors, each frame type is designed to do a specific job and do it well.
Hollow Metal & Wood Door Frames
For commercial applications, CDF exclusively offers steel door frame solutions. Our frames are built for strength, longevity, and performance in demanding environments like offices, schools, healthcare facilities,
Curious what makes ProBuilder a game-changer? In this video, our executive team shares what they love most about the new CDF website and ProBuilder platform. Learn firsthand how these updates are reshaping commercial door quoting and ordering, making workflows faster, more accurate, and easier for contractors and project professionals.
What You’ll Learn in This Video
- What our executives love most about the new website and ProBuilder
- How the platform improves speed and usability
- Tools designed for accuracy and control
- Why the new ProBuilder supports smarter project planning
Why This Matters
The updated CDF website and ProBuilder platform were built to simplify commercial door ordering while giving users more confidence and control throughout every project. These improvements reduce mistakes, save time, and help professionals plan and quote with greater accuracy.
Who This Helps
- Contractors and installers
- Facility managers
- Architects and project managers
- Commercial door specifiers
Commercial
Properly aligning a commercial door frame is crucial for smooth operation, security, and long-term performance. In this video, CDF Distributors’ experts walk you through step-by-step instructions to check, adjust, and install your door frame with precision, ensuring your doors perform at their best from day one.
What You’ll Learn in This Video
- How to assess your door frame before installation
- Steps to align the frame for optimal door performance
- Tips for maintaining proper frame alignment
- Common alignment mistakes to avoid
Why This Matters
A properly aligned door frame ensures smooth operation, maximizes security, and prevents premature wear. Following these steps helps contractors, installers, and building managers avoid common mistakes and ensures reliable door performance.
Who This Helps
- Contractors and installers
- Facility managers and building staff
- Maintenance teams
- Commercial property owners
| Alignment Check | What to Verify | Why It Matters |
|---|---|---|
| Plumb | Frame is perfectly vertical | Prevents |
Watch this detailed video from CDF Distributors to learn how to install a commercial metal door frame in a drywall opening. We guide contractors, builders, and DIYers step-by-step to ensure a square, plumb, and professional installation for smooth door operation and long-term durability.
Why Installing a Metal Door Frame Correctly Matters
A properly installed commercial metal door frame ensures smooth operation, long-term durability, and code compliance. CDF Distributors provides expert guidance to help contractors and builders achieve professional results every time.
What You’ll Learn in This Video
- Tools and materials required for installation
- How to prep your rough opening for accurate fitting
- Step-by-step frame assembly and anchoring
- Tips to ensure the frame is square, plumb, and level
Applicable to Commercial Metal Doors
This installation process is suitable for all standard commercial metal door frames in drywall openings. Following these steps ensures proper alignment and long-lasting
Watch this step-by-step video from CDF Distributors to learn how to install a metal building door quickly and correctly. This video walks you through installing a pre-assembled door in a steel building, helping you achieve a secure, professional, and code-compliant result with less time on the job site.
Why Metal Building Door Installation Matters
Proper installation of a metal building door is essential for durability, security, and long-term performance. CDF Distributors provides pre-assembled door solutions designed to simplify installation while maintaining code compliance and reliability in demanding commercial environments.
What You’ll Learn in This Video
- What’s included with your pre-assembled metal building door
- Tools and materials needed for installation
- How to properly position and secure the frame
- Mounting the door into a metal building opening
- Final adjustments and safety checks for smooth operation
Save Time with Pre-Assembled Door Packages
CDF’s pre-assembled metal building
Watch this step-by-step video from CDF Distributors to learn how to install a deadbolt on a commercial steel door. This video walks you through the tools, preparation, and installation process to help you achieve a secure, professional, and durable result.
Why Install a Deadbolt on a Commercial Steel Door?
Adding a deadbolt to a commercial steel door enhances security and reinforces access control in commercial environments. Proper installation ensures durability, reliability, and code-compliant performance for long-term use.
What You’ll Learn in This Video
- Tools required for deadbolt installation
- How to prepare a commercial steel door properly
- Step-by-step instructions for installing the deadbolt
- Tips for achieving a secure, professional finish
Improve Security with Commercial Door Hardware
Deadbolts are a critical component in commercial door systems, helping protect buildings such as offices, retail spaces, and industrial facilities. Correct installation ensures smooth operation and
Watch this step-by-step video from CDF Distributors to learn how to install hinges on a commercial steel door. This video guides you through proper preparation, alignment, and installation techniques to ensure a secure, smooth-operating, and professional result.
Why Proper Hinge Installation Matters
Correctly installing hinges on a commercial steel door is essential for proper alignment, smooth operation, and long-term durability. Poor hinge installation can lead to sagging doors, uneven gaps, and premature wear.
What You’ll Learn in This Video
- Tools needed for hinge installation
- How to prepare your door and frame
- Proper hinge alignment and positioning techniques
- Step-by-step hinge attachment process
- Final checks to ensure a secure and seamless fit
Ensure Smooth Door Operation
Hinges play a critical role in the performance of commercial doors. Proper installation helps maintain door alignment, reduces stress on hardware, and ensures reliable operation in high-traffic environments.
Built
Watch this video from CDF Distributors to explore the full range of commercial door options we offer. In this quick overview video, you’ll see the different door types available, including solutions designed for durability, performance, and code compliance across commercial applications.
Explore CDF Commercial Door Options
CDF Distributors offers a wide range of commercial door solutions designed to meet the demands of various industries and applications. This video provides a quick look at the door types available for your next project.
Door Types Featured in This Video
- Commercial wood doors for performance and design flexibility
- Hollow metal doors for strength and durability
- Storefront doors for retail and commercial entrances
- Fire-rated doors for code compliance and safety
- Hurricane impact doors for high-wind and coastal environments
Solutions for Every Commercial Application
From offices and retail spaces to industrial and multi-family projects, CDF provides door packages built for
Learn how to order fire-rated doors correctly. This video shows how ProBuilder ensures compliant commercial door assemblies while preventing costly mistakes.
Understanding Fire-Rated Door Assemblies
Fire-rated door assemblies are more than just a door slab—they include frames, hardware, glazing, and accessories that must all meet strict fire code requirements. One wrong component, such as an oversized lite kit, incompatible louver, or improperly rated hardware, can cause the entire opening to fail inspection, leading to costly delays and reorders.
What You’ll Learn in This Video
- Why fire-rated door assemblies are complex and require careful planning
- Common mistakes made when ordering fire-rated doors
- How incompatible components can invalidate a fire label
- How ProBuilder prevents these mistakes before they happen
Why Proper Fire-Rated Door Ordering Matters
Using the right components and verifying compliance ensures safety, code adherence, and smooth project execution. Avoiding common mistakes