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Standard French Door Sizes, Width, Height & How To Measure Up.

French Door Dimensions

French doors are a favoured option for connecting interiors with exteriors, offering both aesthetic appeal and functionality by letting natural light pour in and facilitating a smooth transition to your garden or patio.

It’s beneficial to compare patio doors and French doors to determine which best fits your home’s style and your personal preferences.

To select the ideal French door, you first need to know the dimensions of your door opening and understand the various sizes that are available commercially.

French Door Sizes Overview

Selecting the appropriate French door for your home entails evaluating the space, harmonizing style with functionality, obtaining precise measurements, and considering building codes and installation details.

Typically, the width of standard French doors ranges from 36 inches to 60 inches, and the height varies from 79.5 inches to 81.6 inches. Custom sizes can extend up to 9.84 feet, accommodating larger openings or specific architectural styles with options like bi-folding doors.

Various materials and designs are available for French patio doors, each offering different aesthetic and security advantages, including energy efficiency when installed correctly.

Understanding French Door Dimensions

French doors are highly favoured for patios, blending elegance with practicality by inviting ample natural light into your space and forging a fluid link to your garden or patio.

It’s useful to evaluate both patio doors and French doors to determine which better complements your home and meets your needs.

Identifying the ideal French door for your house starts with a clear understanding of the dimensions of your existing door opening as well as the various standard and custom sizes available on the market.

French Doors Standard Sizes

Typical French door sizes range from 30 to 72 inches in width and from 79.5 to 81.6 inches in height, with the most common widths being 36, 48, and 60 inches.

Custom-sized French doors are also an option, providing the flexibility to customize the fit for specific spaces and to optimize the amount of natural light that enters your home.

When selecting external French doors, it’s crucial to consider both the standard dimensions and the availability of custom sizes to achieve the best fit for your space.

Standard French Door Sizes

French door sizes in CM

Width 180cm
Height 210mm

French door sizes in Inches

Width 36inch
Height 80inch

Standard French Door Dimensions for Homeowners

Standard French door sizes are designed to accommodate most doorway openings, making them a practical option for many homeowners.

Typically, French doors come in widths of 90cm, 120cm, and 150cm, providing flexibility for fitting various spaces.

It’s important to remember that the maximum width for external French doors is approximately 2400mm. Wider doors may place too much strain on the hinges and result in an overly large swing radius.

The standard heights for these doors range from 1800mm to 2100mm.

With this variety of sizes, most homeowners will be able to find a French door that fits their needs with minimal need for customisation.

Customising Your French Door Dimensions

If standard sizes don’t meet your requirements, or if you have distinctive door openings or prefer a more customised look, there are custom French door options available.

These doors can be precisely crafted to suit particular dimensions, with potential widths extending up to 300 cm when including sidelights.

Custom French doors are designed to enhance natural light inflow, making them ideal for those wishing to create a luminous and inviting space.

Options such as aluminium bifolding doors are available; these doors provide a contemporary aesthetic and come with the adaptability of folding or sliding mechanisms.

Such doors are suitable for a broad range of widths, offering great flexibility for homes with larger or uniquely shaped openings.

How to Measure Your French Door Opening Accurately

Ensuring you have the correct measurements of your door opening is crucial when purchasing French doors, as it affects both the security and the fit of the doors.

To ensure a proper fit, it is necessary to measure the width and height of your door opening at several different points.

Accurate measurement requires the use of precise tools and methods, which will be detailed further below.

Often, you’ll discover that standard-sized French patio doors do not perfectly match your opening, making it essential to know the standard dimensions before you shop.

Essential Tools for Measuring Your Door Opening

To obtain accurate measurements of your door opening, several key tools are required. You will need:

  • A tape measure for precise measurements
  • A pen or pencil for noting dimensions
  • A sketch pad to draw the door opening and record measurements

It is also advisable to have another person assist you during the measurement process to ensure accuracy and to help avoid errors.

Sketching the door opening beforehand is useful as it helps maintain consistent reference points, which minimizes mistakes and streamlines the entire process.

Measuring the Height of Your Door Opening

To accurately measure the height of your door opening, you should take measurements along both the left and right sides using a tape measure.

Similar to width measurements, ensure you measure the opening itself and not the existing doors or frames to get an accurate reading.

After measuring, choose the larger of the two height measurements as the definitive height for your French door.

This method accounts for any slight irregularities or variations in the opening’s height, guaranteeing a correct fit.

Width Measurements for Your Door Opening

To accurately gauge the width of your door opening, measure across the top, middle, and bottom of the opening using a tape measure.

It is crucial to measure the opening itself, rather than the existing doors or frames, to obtain the most accurate dimensions.

After recording these three measurements, select the largest one to determine the final width for your French door.

This approach helps ensure that the French door will comfortably fit the opening, accommodating any slight discrepancies or variations in width.

Exploring French Door Styles

French doors are offered in a broad spectrum of styles and materials, giving you plenty of choices to match the decor and requirements of your home.

You can choose from classic wooden doors, chic glass, modern aluminium, or robust uPVC options. Each material provides its own aesthetic appeal along with functional benefits, including energy efficiency and enhanced security.

When selecting the perfect French patio door, it’s important to assess all available options. Consider which style and material best meet your design expectations and practical needs.

Style Options for French Doors

French doors are available in multiple designs, including traditional, folding, and sliding types, which enable you to personalise your home’s appearance.

Beyond the previously mentioned materials, French doors can also be crafted from uPVC, composite, and aluminium, providing further customization possibilities.

The design and finishing details of your French door significantly influence your home’s overall look. Whether you prefer classic grille patterns and hardware finishes or more modern styles, the range of style variations for French doors is extensive and varied, allowing for complete personalization to suit your aesthetic preferences.

Material Options for French Doors

French doors can be constructed from various materials, each offering specific advantages and challenges.

Popular choices for materials include wood, aluminium, steel, fiberglass, and vinyl. These options also extend to the construction of fire doors for added safety.

Wooden French doors crafted from oak, cedar, mahogany, or pine provide a traditional and elegant appearance that complements a broad array of architectural styles.

Aluminium French doors are celebrated for their light weight, durability, and resistance to environmental elements, which makes them ideal for locations experiencing severe weather or heavy rainfall.

Vinyl French doors are another excellent choice due to their high durability and low maintenance needs, appealing particularly to homeowners who prefer a practical and hassle-free option.

Opening Styles for French Doors

French doors provide a range of opening mechanisms, such as inward or outward swinging, sliding, and folding options, adding flexibility to your home’s design and functionality.

Options like sliding and folding French doors are particularly beneficial for expansive openings, enhancing the seamless flow between indoor and outdoor environments without occupying excessive space.

Internal French doors also contribute to your home’s aesthetic appeal and practicality, improving the flow and connectivity between rooms.

When selecting the type of opening for your French door, important considerations include your home’s layout, the space available, and your security needs.

Each style of opening offers distinct advantages and limitations; carefully evaluating these can help you choose the most suitable option for your home.

Considerations for Installing French Doors

After choosing the ideal French door for your home, the next step is to plan the installation.

Key aspects of installation include complying with building codes and deciding between professional installation and a DIY approach.

In the upcoming sections, we will explore the necessity of adhering to building regulations, and compare the advantages of hiring professionals against undertaking the installation yourself.

Understanding Building Regulations

Building regulations consist of mandated laws and guidelines that ensure the safety, energy efficiency, and compliance of construction and renovation projects.

These regulations can differ based on your geographic location, making it essential to familiarize yourself with the local rules specific to your area before installing French doors.

Information about your local building regulations can typically be obtained from your local building authority or by searching online for building codes in your region.

Following these regulations is crucial not only for legal adherence but also for enhancing the energy efficiency and security of your home.

Professional Installation vs. DIY

Although some homeowners may consider installing French doors on their own, opting for professional installation is advisable to guarantee a secure and precise fit.

Professional installers bring a wealth of experience and expertise, ensuring that your French doors are set up correctly, which will offer you long-term peace of mind and high-standard results.

The price of professional installation can vary, typically costing between £400 and £500, which is in addition to the cost of the doors.

While initially it might seem like an extra cost, the advantages of professional installation—such as improved security, better energy efficiency, and superior quality—are significant and represent a sound investment.

Choosing the Ideal French Door for Your Home

Now that you’re familiar with the different sizes, materials, styles, and installation details of French doors, it’s time to pick the ideal one for your home.

This selection process includes evaluating your available space, harmonizing style with functionality, and exploring the various options at your disposal.

In the sections that follow, we will guide you on how to properly assess your space and strike the perfect balance between style and functionality as you choose your French door.

Finding the Right Mix of Style and Functionality

To find the ideal balance between style and functionality for your French doors, it’s important to carefully consider the material, design, and type of opening that will best fit your home’s aesthetic and functional requirements.

For instance, if you reside in a region with harsh weather conditions, choosing a robust material like aluminium or steel can be advantageous.

Conversely, if your goal is to achieve a classic and elegant look, wooden French doors might be the preferred choice.

By thoughtfully evaluating your home’s architectural style, along with considerations for energy efficiency and security, you can select a French door that not only enhances your home’s appearance but also offers significant practical benefits.

Evaluating Your Space for French Doors

Begin by taking precise measurements of your door opening, as outlined earlier in this guide. This initial step is crucial for determining whether standard or custom-sized French doors are more suitable for your space.

Beyond just the dimensions of the door opening, think about any extra features you might want to add, like sidelights or transoms, to boost both the functionality and aesthetic appeal of your French door.

By meticulously evaluating your space and ensuring accurate measurements, you can guarantee that the French door you select will integrate flawlessly with your home, delivering both the look and functionality you desire.


Selecting the ideal French door for your home involves understanding the available standard and custom sizes, taking precise measurements, and choosing the appropriate material and style. It also requires careful consideration of installation aspects.

By effectively balancing aesthetics and functionality, and keeping these considerations in mind, you can choose a French door that not only improves the visual appeal of your home but also provides practical advantages such as energy efficiency and enhanced security.


What is the standard width of a french door?

A standard French door typically ranges in width from 180cm to 240cm.

How do I measure my door opening to fit a French door?

To ensure a perfect fit for your French door, follow these steps:
1. Measure the Width:
• Take measurements at three points: the top, middle, and bottom of the opening.
• Record the width at each point.
2. Measure the Height:
• Measure at two points: the left and right sides of the opening.
• Record the height at each side.
3. Determine Final Dimensions:
• Use the smallest width and the smallest height measurements as the final dimensions for your French door.
This method accounts for any irregularities in the door opening and ensures the door will fit properly in the largest possible space.

How much do fench doors cost?

The cost of french doors varys depending on the materials used however typically you can expect to pay from £1000 for a UPVC and from £1300 for a aluminium French Door.