Baldwin Door Knobs Explained: Privacy, Passage or Keyed?
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Baldwin has been making door hardware since 1946, and the company is best known for forged brass knobs with rich, long-lasting finishes. If you are shopping for a Baldwin door knob for the first time, the hardest part is usually not the look but the job the knob does: some lock with a button, some lock with a key, some simply open, and some do not turn at all. This guide explains those terms in plain language so you can match the right knob to each door in your home.
The six models below are all Baldwin knobs, most from the Reserve line and two from the older Baldwin catalog, and the main difference between them is the function: privacy, passage, keyed entry or dummy (non-turning).
Baldwin Door Knobs Compared
| Model | Function | Finish | Latch and door fit | Listed weight |
|---|---|---|---|---|
| Baldwin Reserve 9BR3530-019 Traditional Ellipse Privacy | Privacy | Lifetime Polished Brass | Fully adjustable latch, 2-1/8″ cross bore, 1″ edge bore | 3 pounds |
| Baldwin Reserve 9BR3520-024 Traditional Round Passage | Passage | Lifetime Polished Brass | Not listed | 3 pounds |
| Baldwin Reserve 9BR3540-001 Traditional Round Keyed | Keyed entry | Polished Brass | Not listed | 3 pounds |
| Baldwin Reserve 9BR3500-023 Traditional Ellipse Half-Dummy | Half-dummy | Lifetime Polished Brass | Adjustable latch mentioned | Listed as 0.27 g |
| Baldwin 5205.003.ENTR Classic Knob Keyed Entry | Keyed entry with emergency exit | Lifetime Polished Brass | 2-3/8″ or 2-3/4″ backset, 2-1/8″ prep, doors 1-3/8″ to 1-3/4″ | 1.5 pounds |
| Baldwin 5015.102.IDM Solid Brass Door Knob | Half-dummy (per description) | Oil Rubbed Bronze | Not listed | 16 ounces |
A quick word on the terms in that table. A passage knob turns on both sides and never locks. A privacy knob adds a simple inside lock, usually a push button or turn button, for bedrooms and bathrooms. A keyed entry knob locks with a key from one side. A dummy or half-dummy knob is a fixed pull that does not turn or work a latch; it is used on closets, pantries and double doors where a separate catch holds the door shut.
Baldwin Reserve 9BR3530-019 Traditional Ellipse Privacy for Bedrooms and Baths
Baldwin
Baldwin Reserve 9BR3530-019 Traditional Ellipse Privacy Knob in Polished Brass
Price and specifications are read from the Amazon product page and can change.
Baldwin Reserve 9BR3530-019 Traditional Ellipse Privacy
Best for: Bedrooms and bathrooms needing a push-button lock
Pros
- Solid forged brass
- Fully adjustable latch
- Spring assisted chassis
- Rose can be swapped
Cons
- Privacy lock is not a keyed lock
The Baldwin Reserve 9BR3530-019 Traditional Ellipse Privacy is the Baldwin Reserve privacy knob in this lineup. The listing describes it as a Reserve Privacy Ellipse knob paired with the Traditional Round Rose (the round plate that sits against the door) in a Lifetime Polished Brass finish. It is built from solid forged brass, and Baldwin says the rose can be swapped for other Reserve roses if you want to change the look.
This is also the model with the most installation detail. The listing names a fully adjustable latch made to fit standard door preparations, a spring assisted chassis for easy installation and firm operation, and a 2-1/8″ cross bore with a 1″ edge bore for the latch. Those two numbers describe the holes already drilled in most modern interior doors: the big round hole through the face of the door and the smaller hole in the door edge. The listing also states the product is manufactured in China, which is useful to know if country of origin matters to you.
Pick this knob for a bedroom or bathroom where you want a quick lock for privacy rather than security. A privacy lock is not meant to keep people out in the way a keyed lock does, so if you need a key, look at the keyed entry models further down.
Baldwin Reserve 9BR3520-024 Traditional Round Passage for Hallways and Closets
Baldwin
Baldwin Reserve 9BR3520-024 Traditional Round Passage Knob in Polished Brass
Price and specifications are read from the Amazon product page and can change.
Baldwin Reserve 9BR3520-024 Traditional Round Passage
Best for: Hallways, closets and rooms that never lock
Pros
- Solid forged brass
- Round knob suits many home styles
- Spring assisted chassis
Cons
- No locking function
- Latch details not listed
The Baldwin Reserve 9BR3520-024 Traditional Round Passage is the Baldwin Reserve passage knob, the simplest working knob in the group. It turns and latches but has no lock at all, which makes it the usual choice for hallways, living room doors, laundry rooms and closets that simply need to stay closed.
The listing highlights solid forged brass construction, the Traditional Round Rose (again swappable with other Reserve roses) and the same easy-to-install spring assisted chassis. Baldwin describes the round knob as transitional in appearance, meaning it sits comfortably between older and newer home styles. The finish is Lifetime Polished Brass, and the material, handle material and handle type are all listed as brass knob.
Unlike the privacy model, this listing does not spell out the latch size or bore measurements, so check the product details or your door before ordering. Choose it when you want the classic Baldwin brass door knob on doors that never need locking; step up to the privacy model for bedrooms and baths.
Baldwin Reserve 9BR3540-001 Traditional Round Keyed for Doors That Need a Key
Baldwin
Baldwin Reserve 9BR3540-001 Traditional Round Keyed Entry Knob in Polished Brass
Price and specifications are read from the Amazon product page and can change.
Baldwin Reserve 9BR3540-001 Traditional Round Keyed
Best for: Interior doors that need a key
Pros
- Keyed entry function
- Brass construction
- Polished brass finish
Cons
- Very thin feature list
- Latch and backset not listed
The Baldwin Reserve 9BR3540-001 Traditional Round Keyed is the Reserve keyed entry version of the round knob. Keyed entry means one side of the door can be locked and unlocked with a key, which suits a home office, a storage room or any door where you want more control than a push button gives.
Its Amazon listing is the thinnest of the six. It says the knob is brass, in a polished brass finish, with a round shape and traditional style, and it repeats the Reserve description about coordinating knobs, levers and handlesets. It does not describe the latch, backset, door thickness range, how many keys come in the box or how the inside of the knob works. We cannot fill those gaps for you, so read the full product details or ask the seller before buying.
This model suits someone who wants the Reserve round look on every door and needs one or two of them to lock with a key. If you would rather have clearly stated door-fit numbers and an emergency exit feature, the Classic keyed entry set below has more detail in its listing.
Baldwin Reserve 9BR3500-023 Traditional Ellipse Half-Dummy for Pantries and Double Doors
Baldwin
Baldwin Reserve 9BR3500-023 Traditional Ellipse Half-Dummy Knob in Polished Brass
Price and specifications are read from the Amazon product page and can change.
Baldwin Reserve 9BR3500-023 Traditional Ellipse Half-Dummy
Best for: Pantry and closet doors held by a catch
Pros
- Matches Reserve ellipse look
- Adjustable latch noted
- Compact size
Cons
- Does not turn or latch
- Listed weight looks like an error
The Baldwin Reserve 9BR3500-023 Traditional Ellipse Half-Dummy is a single fixed knob in Lifetime Polished Brass with the Traditional Round Rose. A half-dummy knob is mounted on one side of a door and works as a pull handle only. It is common on closet doors that close with a ball catch, the inactive side of French doors, or pantry doors where you want the knob to match the rest of the house.
The listing mentions a fully adjustable latch to fit standard door preparations and says the product is manufactured in China. Keep in mind that a dummy knob itself does not operate a latch, so that line appears to be carried over from the Reserve family description. The item weight is listed as 0.27 g, which is clearly a data error for a brass knob, so do not rely on that figure.
Choose this knob when you are matching the Reserve ellipse privacy knob elsewhere in the house and need a non-turning pull. If you need the door to latch or lock, choose one of the working knobs above instead.
Baldwin 5205.003.ENTR Classic Knob Keyed Entry with Emergency Exit
Best for: Doors needing a key with easy exit
Pros
- Keyed with emergency exit
- Two backset options
- Clear door thickness range
Cons
- Finish fields in listing conflict
The Baldwin 5205.003.ENTR Classic Knob Keyed Entry is a Baldwin keyed entry knob from the Classic line, and its listing is the most useful for anyone checking fit. It lists an adjustable latch for 2-3/8″ and 2-3/4″ backsets (the distance from the door edge to the center of the knob), a fit for the standard 2-1/8″ door prep, and a door thickness range of 1-3/8″ to 1-3/4″.
The description explains how it works: turning the knob retracts the latchbolt, the door stays locked from the exterior, and an emergency exit function always retracts the latch so someone inside can leave right away. That emergency exit feature is a real safety plus for any room a person might need to get out of quickly. It has a Classic rose and a listed weight of 1.5 pounds.
One detail to watch: the color is listed as Polished Brass while the finish type field says Bronze. The title says Lifetime Polished Brass, so that is most likely the correct finish, but confirm on the product page. If you are comparing this with a complete entry door lock set for an exterior door, remember this is a knob set only; the listing does not mention a deadbolt.
Baldwin 5015.102.IDM Solid Brass Door Knob for Oil Rubbed Bronze Rooms
Best for: Dark finish doors needing a dummy knob
Pros
- Forged from solid brass
- All fasteners included
- Non-handed design
Cons
- Title and description disagree on function
- Oil rubbed finish only
The Baldwin 5015.102.IDM Solid Brass Door Knob is the only darker finish in this group, listed in Oil Rubbed Bronze with a transitional style. The listing says it is forged from solid brass, uses a non-handed design (it works on left or right swinging doors), and comes packaged with all fasteners for an easy install.
There is a mismatch worth knowing about. The title calls it simply a solid brass door knob, but the description names it a 5015 Half-Dummy Knob in Oil Rubbed Bronze. Read that way, this is a fixed pull knob, not a turning knob that latches or locks. The listed size is 4.35″ by 2.5″ and the weight is 16 ounces. Baldwin’s description also mentions heat forging, metal plating and hand polishing as part of how its hardware is made.
Choose this one for closet or pantry doors in a room with darker bronze hardware. If you need a working knob in the same finish, this listing will not cover that job.
How to Choose the Right Baldwin Door Knob
Start with the function. This matters more than style. Use a passage knob like the Reserve Round Passage for doors that never lock, a privacy knob like the Reserve Ellipse Privacy for bedrooms and bathrooms, a keyed entry knob like the Reserve Round Keyed or the Classic Keyed Entry when you need a key, and a half-dummy like the Reserve Ellipse Half-Dummy or the 5015 for pull-only doors.
Measure your door. Most interior doors use a 2-1/8″ cross bore. Check the backset too; the Classic Keyed Entry lists 2-3/8″ and 2-3/4″, and door thickness from 1-3/8″ to 1-3/4″. Where a listing does not state these numbers, confirm them before buying.
Match the finish across the house. Four of these knobs are in polished brass and one is in oil rubbed bronze. Mixing finishes in the same room tends to look accidental, so buy the whole set in one finish where you can.
Think about security honestly. Interior knobs, including keyed ones, are not a replacement for a deadbolt on an outside door. If your main goal is a locking door knob for a budget comparison, weigh how much the solid brass build and finish matter to you.
FAQ
What is the difference between a privacy and a passage knob?
A passage knob turns and latches but never locks. A privacy knob adds a simple lock on the inside, meant for bedrooms and bathrooms. In this list, the Reserve Round Passage is the passage model and the Reserve Ellipse Privacy is the privacy model.
What does half-dummy mean on a Baldwin knob?
A half-dummy is a single knob that does not turn. It is screwed to one side of the door and used as a pull on closets, pantries or the inactive leaf of double doors. The Reserve Ellipse Half-Dummy is one, and the 5015 is described as one in its listing.
Are Baldwin Reserve knobs made of solid brass?
The privacy and passage Reserve listings state solid forged brass construction, and the keyed and half-dummy listings give brass as the material. The 5015 is described as forged from solid brass.
Will these knobs fit my existing door?
Most will fit a standard door prep, but details vary. The Reserve privacy knob lists a 2-1/8″ cross bore and 1″ edge bore, and the Classic Keyed Entry lists backsets and door thickness. For the others, the listing does not specify, so measure first.
Which Baldwin door knobs should I buy for a whole house?
A common plan is passage knobs for hallways and closets, privacy knobs for bedrooms and baths, a keyed knob for one or two storage or office doors, and half-dummy knobs for pantries or double doors, all in one finish. If you are weighing a smart door lock for the front door, that is a separate choice from these interior knobs.
