
Understanding Door Jambs and Other Door Frame Components
When it comes to any major door system, whether an entry door, patio door or any other type, there are several important components working together. From the frame and the door itself to various hardware elements used to define its operation, doors require properly-built components in a few vital areas.
At Peach Building Products, we’re happy to explain the details of any of our custom doors, including entry doors and several other styles. One important such component that many home and building owners don’t know enough about: The door jambs, plus other specific pieces that make up a door frame. Let’s go over what the door jamb is and why it matters, plus some of the other pieces that go into your frame.

Door Jamb Basics
Most entry doors will have multiple door jambs, which can in many cases simply be referred to as the legs of the door frame. The door jambs hold the mounting hinges on one side, then the strike plate for the door latch on the other side. They are vital for the connective element of a door with its doorway space.
Now, it’s important not to confuse door jambs with other components of the door frame. In particular, they are often mixed up with the door casing, which is the wood surrounding the door frame. Casing may also be referred to as door trim. These are very different things and should be treated as such.
Other Vital Frame Components
The door jamb is one central part of a door frame, but there are others. In many cases, replacing a door jamb involves building an entirely new frame. Some of the other components involved here include:
- Door head: The horizontal component found just above the door, with two grooves the door jambs are built to fit into.
- Door sill: Another horizontal piece that’s found on the floor below the door, also sometimes called the door threshold. Door sills are usually only found on exterior doors, adding rigidity and helping funnel away water as needed.
- Door stop: Door stops are multiple thin strips of wood placed along the length of the door jambs and the head. They stop the door from being ripped off its hinges.
- Weather stripping: Commonly mounted against the jamb and door stop, weather stripping creates an airtight seal for exterior doors to keep them protected. They usually feature a door sweep on the bottom to stop air from entering. Weather stripping is vital for sealing gaps and keeping heating and cooling costs down.
- Jamb casing: Also called an architrave, this is a decorative trim mounted to the wall around the frame. It’s generally separate from the frame itself, meaning it can be removed or replaced easily.
For more on the important components involved in door jambs and door frames, or to learn about any of our entry doors or new window products, speak to the staff at Peach Building Products today.
Related Articles

Why Fall Is the Perfect Time for Window Replacement in Salt Lake City
Fall in Utah has a lot going for it. The canyons turn brilliant shades of…

How to Choose the Right Windows for a Utah Mountain Home
Choosing windows for a Utah mountain home requires more than selecting a style you like.…

Utah Front Door Replacement Guide: How to Choose the Right Entry Door
Utah Front Door Replacement Peach Doors & Windows Your front door is one of the…

Why High-Altitude Homes in Utah Need Specialized Window Coverings
There is something special about living at elevation. Wake up in Park City, Deer Valley,…

Why High-Altitude Homes in Utah Need Specialized Window Coverings
Luxury homes in Park City, Deer Valley, Promontory, Tuhaye, Midway, Heber, and other Northern Utah…

Why Energy-Efficient Windows Are a Smart Investment
Why Energy-Efficient Windows Are a Smart Investment for Utah Homes There are plenty of home…

Whole Home Window Replacement
Whole-Home Window Replacement in Utah: When Should You Replace Every Window? Replacing one window is…

Thin-Framed Windows: Why More Utah Homeowners Are Choosing Them for Modern Window Replacement
If you’re considering window replacement in Salt Lake City, you’ve probably noticed a growing trend…

What signs indicate your windows are ready for replacement rather than repair
How to Tell When Your Windows Need Replacement Instead of Repair If you’re feeling drafts,…

What Are the Hidden Benefits of Vinyl Window Frames in Cold & Hot Climates?
Let’s be honest—most people don’t sit around thinking about window frames. Until, of course, it’s…
Previous Article
Why Fall Is the Perfect Time for Window Replacement in Salt Lake City
Fall in Utah has a lot going for it. The canyons turn brilliant shades of…
Previous Article
Why Energy-Efficient Windows Are a Smart Investment
Why Energy-Efficient Windows Are a Smart Investment for Utah Homes There are plenty of home…

Want Help Designing Your Space?
Get a Free Quote and Let’s Dream Together!
No matter what type of custom windows or doors you're looking for, our team at Peach Building Products is here to help. We offer free consultations and design services to help you choose the perfect custom products for your Utah home. Contact us today to get started!
Phone: 801.566.1255