Commercial Double Door Dimensions Guide

At Paratec Door Solutions, we know that the right double door dimensions can make all the difference in the functionality, appearance, and long-term performance of your entryway. Whether you’re outfitting a large commercial building, upgrading your storefront, or replacing aging overhead doors, choosing the correct double door size is essential for security, accessibility, and smooth operation.

With decades of experience in commercial door installation, repairs, and customization, we’ve helped businesses across Florida—from Orlando to Tampa—find the perfect fit for their needs. In this guide, we’ll share our professional insight on understanding double door dimensions, measuring accurately, and selecting the best option for your space.

Understanding Standard Double Door Dimensions

In the commercial door industry, “standard” doesn’t always mean one-size-fits-all. Most double door sizes fall within certain width and height ranges, but the exact dimensions you need will depend on the building’s layout, its purpose, and any applicable building codes.

For example, a standard commercial entry double door often measures around 72 inches in width (36 inches per leaf) and 80 to 96 inches in height. However, when dealing with overhead doors, roll-up doors, or high-speed doors, the dimensions can be much larger, especially for warehouses, loading docks, or manufacturing facilities.

It’s important to note that the listed double door dimensions usually refer to the door leaf size, not the rough opening. The rough opening must allow for the frame, hardware, and any clearance needed for proper operation. As professionals, we always measure with these factors in mind to avoid costly misalignments or retrofits.

Factors That Affect Double Door Size Selection

Selecting the right double door size involves more than just picking a number from a chart. We consider several factors before recommending a specific dimension:

Purpose and Traffic Flow
The function of the space is a significant factor. For example, a hospital corridor may require wider doors to accommodate stretchers, while a retail storefront may prioritize visibility and aesthetics. At Paratec Door Solutions, we design installations that match the expected traffic flow and operational needs.

Building Codes and Accessibility Requirements
Many commercial spaces must adhere to ADA compliance and local safety codes, which dictate minimum widths and clearance space. In some cases, fire-rated double doors—like our fire-rated doors—require specific sizing for safety and regulatory approval.

Material and Door Type
From steel doors for security to glass storefront doors for visual appeal, the construction material can impact available sizing options. Some materials require thicker frames or structural support, which influences the final measurement.

Environmental and Security Needs
In hurricane-prone regions of Florida, many clients opt for hurricane-rated garage doors, which may require reinforced frames and custom dimensions to withstand high wind loads.

Measuring for Double Door Installation

Accurate measurements are the foundation of a proper installation. In our years of servicing clients across Florida, we’ve seen many projects delayed because of measurement errors. Here’s our professional approach to measuring for double door dimensions:

Step One – Measure the Width and Height of the Rough Opening
We measure from inside edge to inside edge for the width and from the floor to the header for the height. This ensures we’re working with the actual opening size before factoring in frames and hardware.

Step Two – Consider Frame and Hardware Allowance
Double doors require space for hinges, handles, and any additional locking mechanisms. The frame itself will also slightly reduce the precise opening size.

Step Three – Account for Door Swing and Clearance
Depending on whether the doors swing in or out, clearance on each side is critical. This is especially important for automatic double doors where smooth, obstruction-free movement is essential.

Step Four – Verify Code Compliance
Before we finalize the order, we double-check measurements against local building codes and ADA requirements to ensure compliance. This extra step helps our clients avoid costly retrofits or failed inspections.

Custom Versus Standard Double Door Dimensions

While many facilities can use standard double door sizes, there are times when a custom solution is the only way to get the perfect fit. At Paratec Door Solutions, we provide both options depending on your needs.

When Standard Sizes Work Best
If your building’s openings were constructed with typical dimensions in mind, standard sizing can save time and money. Standard double door dimensions are readily available, making them quicker to order and install. They’re an excellent choice for many retail spaces, offices, and warehouses.

When to Choose Custom Sizing
Custom double doors are ideal for older buildings with non-standard openings, unique architectural designs, or specialized operational requirements. For example, aircraft hangars often require oversized hangar doors, while industrial plants may need extra-wide high-speed doors for large equipment.
Custom sizing allows us to maximize efficiency, enhance security, and ensure that your doors integrate perfectly with the rest of the building.

Cost and Lead Time Considerations
Custom sizes can take longer to fabricate and may cost more due to the use of specialized materials and labor. However, they often pay off in long-term performance and reduced maintenance issues, especially when matched to your exact operational needs.

Double Door Size Chart for Quick Reference

Below is a general guide to standard double door dimensions for commercial and industrial applications. Keep in mind that these figures are approximate, and the right size for your space may vary.

This chart serves as a starting point. We always recommend a site visit to verify the actual double door size needed for your project.

Tips for Choosing the Right Double Door Size

Selecting the right double door dimensions involves balancing functionality, aesthetics, and compliance. Here are our top professional tips:

Match the Door Size to the Scale of Your Building
Doors that are too small can look out of place on a large façade, while oversized doors can overwhelm a smaller entry. Proportion is key for visual appeal.

Consider Clearance for Equipment and Furniture
If you frequently move large items in and out of the building, ensure the doors allow enough space for smooth movement without damage.

Think About Long-Term Maintenance
Larger and heavier double doors may require reinforced hardware and more frequent servicing. Our commercial garage door repair team can help keep them operating smoothly.

Evaluate Energy Efficiency and Security
The bigger the door, the greater the potential for energy loss and security concerns. Choosing high-quality insulated steel doors or impact-rated models can help offset these challenges.

Double Door Dimensions: The Perfect Fit

Choosing the correct double door dimensions is about more than just filling an opening—it’s about ensuring that your doors enhance your building’s security, accessibility, and efficiency for years to come. Whether you need a standard-size installation for your storefront or a custom-fit solution for a loading dock, our team at Paratec Door Solutions has the expertise to get it right the first time.

From precise measurements to code compliance and expert installation, we bring decades of experience to every project across Florida, including Orlando, Tampa, Jacksonville, and beyond.
If you’re ready to upgrade or install new double doors for your commercial or industrial property, contact us today for a professional consultation and a perfect fit.