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How To Install Door Trim

Whether you’re installing new door or changing the door’s trim for aesthetic reasons, read on to learn how to trim a door yourself.

Sliding Barn Door dividing two rooms.
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How to Build a Sliding Barn Door

Get a rustic look by building your own barn door with this step-by-step guide.

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How to Create a Dutch Door

Ask This Old House general contractor Tom Silva converts a regular door into a Dutch door.

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Window and Door Installation Master Class | Pro2Pro LIVE

Watch Kevin O’Connor and Building Science expert Christine Williamson discuss the key strategies to an air-tight installation that manages water.

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How to Prehang a Salvaged Door

Ask This Old House general contractor Tom Silva shows a homeowner how to turn an old door into a prehung door for a new opening

How to Soundproof a Door

How can you stop—or at least reduce— noise coming from outside a room? Fortunately, there are a few easy ways to soundproof an interior door, and we’ll tell you how.

How to Install a Prehung Door

Tom Silva does a plumb job installing a prehung interior door.

How to Weatherstrip a Door

Close the gap in your door to stay free from drafts, eliminate air leaks, and maintain energy efficiency.

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How to Hang a Sliding Barn Door

In this DIY Smarts project, Ask This Old House carpenter Nathan Gilbert travels to Birmingham, Alabama to install a sliding barn door in an open-concept loft apartment.

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How to Recreate the Look of an Antique Closet Door

Ask This Old House general contractor Tom Silva travels to Pittsburgh to replace a bi-fold closet door with one that is more appropriate for the house

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How to Install a Secret Door

Tom Silva installs a bookcase that also serves as a door, concealing the entrance to a closet. He also demonstrates how to use a "scribe" to cut filler strips for an uneven floor.

How to Build a Hidden Door

Trim out a slab door with poplar boards to create a hidden passage disguised as a paneled accent wall

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How to Replace a Door With a Window

This Old House general contractor Tom Silva shows the proper way to install a new window into an old—and oversized—doorway opening

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How to Install a Storm Door

This Old House general contractor Tom Silva shows how to hang a new energy efficient door

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How to Create an Interior Door Opening

Cutting a new doorway with This Old House general contractor Tom Silva

Adding Carriage-Style Garage Doors

See what's involved when installation pros upgrade generic overhead garage doors to old-world carriage-house openers

How to Build a Screen Door

A screen door made from wood is the most elegant choice for keeping out unwelcome guests.