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Marvin Replacement Bi-Fold Doors, also called folding doors or accordion doors, have panels that are hinged to each other and fold open and closed like an accordion. Bi-Fold Doors are built with Ultrex® fiberglass to provide durability and timeless design.


  • Can include up to 7 panels and span 22-feet wide for panoramic views

  • Panels stack tightly with magnetic door catches

  • Pleated fabric screen available

  • Can open from the center (bi-parting) or to one direction (uni-directional) to the left or right

Line Break

Get your project started by booking a free appointment with one of our design consultants.




Strong Frame Material

Ultrex fiberglass is 8x stronger than vinyl doors to resist warping and shifting to protect your home.


Exceptional Stability

Ultrex expands 87% less than vinyl to resist leaks + seal failures for patio doors that open and close easily.


Bigger Views

Our bi-fold doors create wide expanses to capture bigger backyard views.


Style Options

Choose from 28 configurations, including a bi-parting or uni-directional opening style.

Interior view of an opened Marvin Replacement four-panel bi-fold door leading to a sun room.

Replacement Bi-Fold Patio Door Design Options

Replacement Bi-Fold Patio Door Styles

Marvin Replacement's Bi-Fold Patio Door allows you to truly maximize indoor-outdoor living spaces. Our bi-fold door instantly upgrades your indoor-outdoor living style with modernized design and operation. Enjoy a panoramic scenic view with our bi-fold door whether you're entering guests or daydreaming from inside your home.

The accordion style of the bi-fold door allows a rush of fresh air into your home. Bi-fold doors can come as bi-parting doors, meaning it opens in the middle, uni-directional where the door opens to the left or the right, and uni-directional with an access panel that swings open and closed.

The access panel option is great for quickly letting out pets or grilling outside in cooler months to prevent warmth from leaving your home.

Worried about bugs? Our pleated fabric screen is available to keep the bugs out of your home when you have your bi-fold door open.


Bi-fold doors can come with three, four, five, six or seven panels. A seven-panel bi-fold door can span up to 22 feet wide to provide a panoramic view.

Selected: Bi-Parting

Marvin Replacement four-panel bi-parting bi-fold patio door.
Image of a three-panel Marvin Replacement uni-directional Bi-Fold patio door.
View of a four-panel Marvin Replacement bi-fold patio door with an access door.
Bi fold seven panel patio door
Marvin Replacement four-panel bi-parting bi-fold patio door.

Exterior Colors

Our exterior finish stands up to the elements, so much so that 48,000 hours of sun can't fade our finish* and our fade-resistant finish resists scratches, chalking, chipping, denting, and peeling. Choose from seven stunning exterior colors to boost your curb appeal.

Selected: Stone White

stone white color
An example of a Sierra finish option for Marvin Replacement windows and patio doors.
An example of a Cashmere finish option for Marvin Replacement windows and patio doors.
Example of a Pebble Gray finish color for Marvin Replacement windows and patio doors.
An example of a Bronze finish for Marvin Replacement windows and patio doors.
An example of a Bahama color finish for Marvin Replacement windows and patio doors.
An example of an Ebony finish color with Marvin Replacement windows and patio doors.
Exterior side of a Marvin Replacement Bi-Fold door with a Stone White finish.

Marvin's Ultrex® fiberglass finish is verified to the American Architectural Manufacturers Association (AAMA) 624 specification. Achieving AAMA 624 verification means that our Ultrex finish has passed rigorous tests that simulate the harsh conditions a finish can encounter throughout the life of a window or door.

*Average sunlight exposure per 10 years

Interior Colors

We use the same tough acrylic finish on our four interior color options that we use on our exterior colors. You can also choose our stainable EverWood® finish for the look of wood without the maintenance.

Door sills come in Bronze or Beige colors.

Selected: Stone White

stone white color
Sierra swatch
EverWood finish sample
Bronze swatch
Ebony swatch
Interior side of a Stone White Marvin Replacement Bi-Fold door.

1. Sierra interior is not available with Ebony exterior

2. Bronze interior is only available with Bronze exterior

3. Ebony interior is only available with Ebony exterior

Finish samples are approximate. Schedule a design consultation for an up close view of color options.

Glass Coatings

Our experts will walk you through energy efficient glass options to find the right selection for your home and the best patio door for your space. Choose from four glass coatings, plus decorative glass options, and specialty glass choices.

Low E-1

Primarily used in colder climates, Low E1 allows more heat in to warm a room while blocking heat loss.

Low E-2

Low E2 offers year-round performance in moderate climates. It will help retain heat in your home during the winter and keep heat out during the summer.

Low E-3

Low E3 rejects solar heat while letting light in, resulting in increased performance in climates with intense sun exposure.

Low E-3/ERS

Low E3/ERS provides maximum efficiency year-round in all conditions.

Selected: Low E1

Diagram of Low E glass coating
Diagram of Low E2 glass coating
Diagram of glass with three metallic coatings.
Low E-3 ERS
Diagram of Low E glass coating

Decorative Glass

Decorative glass options are ideal for spaces like bathrooms to balance natural light and privacy.

Selected: Rain

Rain Glass
Glue Chip Glass
Narrow reed glass
Obscure Glass
Frost Glass
Marvin Replacement Reeded Decorative glass
Example of Marvin Replacement Gray Tint Decorative Glass
Sample of Marvin Replacement Green Tint Decorative Glass option.
Example of Marvin Replacement Bronze Tint Decorative Glass.
Rain Glass

Specialty Glass

We offer specialty glass to best suit the needs of your home. You can choose tempered glass, laminated glass, and STC/OITC glass for specific windows and rooms.

Tempered Glass

Tempered glass increases glass strength to help prevent breakage. Tempered glass is ideal for windows close to the floor or located in high-traffic areas.

Laminated Glass

Even more durable than tempered glass, laminated glass is often referred to as impact resistant or safety glass due to its vinyl inter layer that tends to remain in place when shattered.


Sound Transmission Class and Outdoor-Indoor Transmission Class glass has increased pane thickness on the room side and works in areas where exterior noise is a concern.


Choose from one of nine hardware finishes, depending on the handle style, for your bi-fold patio door. Or, choose a Twin Bolt Handle in Black or Brushed Stainless Steel color. Rotate the interior Twin Bolt Handle up 180 degrees to unlock and open the door, rotate down to lock and secure.

Choose a Black or Brushed Stainless Steel color for a magnetic door catch to keep door panels in place when you open the door.

Selected: White Northfield Collection

Satin Taupe
Satin nickel
brushed chrome
antique brass
Oil rubbed bronze
matte black
Close up view of a white Marvin Replacement patio door handle in the Northfield style.

1. Sierra, Brushed Chrome, and Antique Brass are not available in the Northfield handle collection for Bi-Fold patio doors.

Bi-Fold Screen Options

Our bi-fold door uses an optional pleated fabric screen that slides open and can be positioned as desired. Bi-parting and uni-directional options are available, depending on your configuration.

Selected: Pleated Fabric Screen

Marvin Replacement Bi-Fold Patio Door pleated screen
Marvin Replacement Bi-Fold Patio Door pleated screen


Our bi-fold patio door slides easily and stack tightly when the door opens. The panels stay in place with magnetic catches when stacked while a multi-point locking system provides additional peace of mind when the door is closed.

  • Marvin Replacement Bi-Fold Doors are available with up to seven panels that are hinged to each other to fold open and closed. Carefully engineered top-hung design allows for fingertip operation.

    Our multi-point locking system gives you a sense of safety and security.

    Our pleated fabric screen allows for fresh air and expansive views while keeping bugs out.

    Marvin Replacement Bi-Fold Doors are built with Ultrex® fiberglass to pair lasting performance with timeless design.

Frequently Asked Questions

Do Bi-Fold Doors come with screens?

Yes, Marvin Replacement Bi-Fold doors come with a pleated fabric screen that can open from both sides and be positioned as desired.

How do bi-fold doors do in warm climates?

Bi-Fold patio doors create a tight seal when closed to prevent unwanted hot air or water from entering your home. Plus, Marvin Replacement has glass coating options that can help reject solar heat. Find out more about our energy efficient windows and doors.

How do bi-fold doors work in winter?

The tight seal bi-fold doors have when closed helps prevent unwanted air and moisture from entering your home. If you want to operate your bi-fold door in winter, make sure the area the door opens out to remains clear of snow. Bi-fold doors can have an access door that operates as a French door so you can enter and exit without opening the entire bi-fold door. Check out our bi-fold door in action.

Can you widen an existing opening for a patio door?

Widening an existing opening depends on the intended space for a patio door. If we need to cut the structural opening, we’ll need a structural engineer to verify the site has the capability to do so.

How do you lock a bi-fold door?

Bi-fold patio doors use a twin bolt handle to lock the door. Lifting the handle 45 degrees upward will set the head and foot bolts in place for a secure seal. The deadbolt in the handle assembly locks with a 90 degree turn of the key from the outside or with the thumb turn on the inside. The twin bolt handle rotate up to 180 degrees and to lock the bi-fold door, rotate the handle down.

You can also select keyed door handles from our Northfield and Cambridge collections.

Bi-fold patio door benefits

Bi-fold doors create indoor-outdoor living in your home and help create outdoor kitchen, dining room, and entertainment areas where you don’t need to open and close a patio door each time you move between the indoors and outdoors.

Bi-Fold Door Project Transformations

Added Assurance

Marvin Replacement windows and patio doors come with a limited lifetime warranty as well as a 5-year installation warranty to provide additional peace of mind.

Looking for More Patio Door Information?

Discover additional benefits of Marvin Replacement patio doors and more for your home.

Exterior view of a Marvin Replacement Sliding French door.

Patio Door Buying Guide

Find out things to consider when you're searching for the right patio door for your home.

Patio Door Buying Guide
Exterior view of a white Marvin Replacement two-panel Sliding Glass Patio door

Indoor-Outdoor Living Ideas

Want to expand or transform your indoor-outdoor living? See what you should consider including.

Indoor-Outdoor Living Ideas

Schedule Your Free Consultation

Interior view of an opened Marvin Replacement bi-fold patio door.

If you’re ready to get started, discuss your replacement window and door options with a Marvin Replacement design consultant. We’re here to answer any questions you may have, and help make your project easy.

Schedule your consultation