Transforming a Window into an Exterior Door in Your Manufactured Home: Step-by-Step Guide

A home renovation can bring new life to any living space, and converting a window into an exterior door in a manufactured home is one such project that can dramatically improve the functionality and aesthetic of your residence. This guide will walk you through the process of transforming your window into an exterior door, step-by-step, ensuring that you have all the necessary information to successfully complete the renovation.

Assessing the Structural Support

Before diving into the conversion, it is crucial to assess the existing structural support around the window frame. Manufactured homes often have different construction methods and materials than traditional homes, so it is essential to consult with a professional to ensure that your home's structural integrity will not be compromised by creating a new opening.

Gathering the Necessary Tools and Materials

Once you have determined that the conversion is feasible, gather the necessary tools and materials to complete the project. Some essentials include:

Tape measure



Pry bar

Reciprocating saw

Circular saw



Exterior door and frame


Galvanized nails or screws


Lockset and deadbolt

Removing the Existing Window

Begin by carefully removing the interior and exterior trim around the window. Use a pry bar to gently pry away the trim without damaging the surrounding materials. Remove any necessary insulation and set it aside for use later in the project. With the trim removed, carefully lift the window from its frame and set it aside.

Cutting the New Opening

Using a tape measure and level, mark the dimensions of the new door opening on the exterior wall. Measure carefully to ensure that the door will fit properly within the space. Use a reciprocating saw to cut through the exterior wall along the marked dimensions. Remove any remaining insulation and debris.

Framing the New Door Opening

Utilize a circular saw to cut the necessary lumber to frame the new opening. This will provide the necessary structural support for the door and its surrounding frame. Fasten the lumber to the existing framing using galvanized nails or screws. Be sure to keep everything level and plumb throughout this process.

Installing the Door and Frame

With the new opening framed, it's time to install the door and its surrounding frame. Set the door into the opening, using shims to level and align the door within the frame properly. Attach the door frame to the surrounding lumber using galvanized nails or screws. Ensure that the door opens and closes smoothly before moving on.

Sealing and Insulating the New Door

Once the door is securely in place, apply weatherstripping to the sides and top of the door frame to create a tight seal against the elements. Replace any insulation that was removed earlier, ensuring that the wall cavity is properly insulated to prevent drafts.

Installing Lockset and Deadbolt

Now that the door is in place, install the lockset and deadbolt according to the manufacturer's instructions. Ensure that the lock operates smoothly and securely before moving on.

Finishing Touches

Reattach the interior and exterior trim to the new door opening, securing it using nails or screws. Caulk any gaps between the door frame and the surrounding wall to create a watertight seal. Finally, touch up any paint or siding as needed to ensure a seamless appearance.

As you can see, converting a window into an exterior door in a manufactured home is a multifaceted process that requires careful planning, attention to detail, and the right tools and materials. By following this step-by-step guide and partnering with a professional for guidance, you can successfully complete this renovation project and enjoy the added functionality and aesthetic appeal that a new exterior door brings to your home.

convert window into exterior door in a manufactured home


Freedom to dream "truly custom-made"

Doorwin provides one-stop solution for professional windows doors manufacturer and installation. We have been serving customers with our high quality and branded products in United States, Asia and worldwide.


Our team of experts will work with you to develop a bespoke plan that fits your needs. We take a holistic approach to the planning process, combining our technical expertise with our knowledge of customer requirements and project constraints.

Full Custom Fenestration System

Find the true freedom to bespoke

Doorwin is the manufacturer of full custom fenestration systems, and we're here for you. We provide you with the freedom to design your windows, doors, and more with no additional charge for special shapes, hardware styles, and color choices. Your vision is our inspiration; our job is to make it a reality.
Our products are made to pass your local inspector's verification and are built under USA building codes so you can rest assured that they are safe and sturdy. Choose Doorwin to experience the best bespoke fenestration service available today!

Design Assistance Service

From manufacturing to delivery on site

We take care of the entire process for you, from beginning to end. We have our own expertise and will provide free-charge design development & contract documentation with CAD and BIM drawings. In addition to elevation details and installation design, we will double-check that the products match the drawings and project specifications through video or pictures. We'll help you specify the delivery schedule and logistics service whilst keeping costs to a minimum.

The Safest Delivery

5 layers packaging guarantee 0 damage

We're proud to be one of the top exporters of windows and doors to the United States. We pack each window individually and in four layers, and finally into wooden boxes with non-fumigation, and at the same time, there will be a lot of shockproof measures in the container to protect your items. We ensure that your products will arrive at the sites in good condition after long-distance transportation.
Doorwin has been exporting tens of millions of dollars of windows and doors to the U.S. every year, and we know that improper packaging can cause breakage of the product when it arrives on site. What the client concerns, we concern most.

What Projects Can We Take?

We are tested by the following standards:
-NFRC (North American Fenestration Rating Council)
-AAMA (American Architectural Manufacturers Association)
-WNMA (Wood National Monument Association)
-CSA101 (Canadian Standards Association)
-I.S.2 (International Standard ISO/IEC 17025)
-A440-11 (Standard for Fire Testing of Door Assemblies for Charging Rooms)