SENY Crystal Door Knob with Square Backplate for Interior Doors

Why Customers Love It

Bold Geometric Style Makes a clean visual statement

Polished & Refined Feels elevated, never overdone

Easy to Coordinate Works across modern interiors

Instant Style Upgrade Transforms everyday doors

Crystal Door Knob with Square Backplate for Interior Doors

Square Backplate · Crystal Knob · Interior Use

Modern Square Backplate Door Knob with Crystal Clarity

The SENY square backplate door knob combines clean architectural lines with refined crystal brilliance, creating a modern yet timeless statement for interior doors.

Featuring a clear crystal knob paired with a structured square backplate, this crystal door knob with square backplate enhances both visual balance and everyday functionality.

Refined Crystal Detail with Lasting Clarity

Crafted from premium lead-free crystal, this interior crystal door knob delivers exceptional transparency and subtle sparkle.

Clear crystal design reflects light with soft brilliance
Smooth, polished surface for a comfortable grip
Durable construction for long-term everyday use

A refined upgrade that brings brightness and elegance to interior spaces.

Structured Square Backplate Design

The defining feature of this door knob with square backplate is its clean, geometric structure.

Square backplate adds modern architectural definition
Balanced proportions enhance door aesthetics
Works seamlessly in modern, transitional, and minimalist interiors

A perfect combination of structure and clarity.

Designed for Interior Doors

Ideal for a variety of interior applications:

Bedrooms
Bathrooms
Hallways
Closets
Home offices

A versatile choice for crystal door knobs interior upgrades throughout the home.

Multiple Functions Available

Choose the configuration that fits your space:

Passage – Non-locking for hallways and shared spaces
Privacy – Locking for bedrooms and bathrooms
Dummy – Decorative, non-turning for closets or inactive doors

All options maintain a consistent exterior design.

Easy Installation & Standard Fit

Complete hardware set for one door
Adjustable latch: 2-3/8" or 2-3/4"
Fits standard U.S. interior door thicknesses: 1-3/8" to 1-3/4"
Pre-mounted knobs for easier installation

Important: This lock set is designed for standard pre-drilled doors.

For some older mortise lock doors, additional door preparation or a reinforcement plate may be required.

Need help converting an older mortise lock door?
Contact us before ordering, and we'll be happy to help determine compatibility and recommend a suitable solution.

Multiple Finish Options

Available in a curated range of finishes to match different interior styles and coordinate with existing door hardware.

Important Notes

Due to production batch variations, slight color differences may occur
California Proposition 65 Warning

Cancer and Reproductive Harm — www.P65Warnings.com

Beutiful Handles

These handles are well worth their money. They give a sofisticated finished look. You can feel the quality. Enjoy!

Great value!

Compared to other similar products costing 3-4 times the price, these dummy knobs are excellent quality. Install for dummy has to be spot on as once the mounting hardware is screwed to the door, there are no other lateral adjustments for the square plate. IF done correctly, straight and level, they are gorgeous. The knobs robustly screw to the hardware and have a set screw so once installed, they are TIGHT. The glass/ crystal is clean and nicely cut. Great knobs particularly at this price point!

Beautiful and unique.

Unique door knobs. And beautiful. Getting used to them as the square shape doesn't turn as usual.

Great price!

Purchased for bathroom door. We have cut crystal doorknobs on the rest of the doors in the hallway, but that would not work on the 5-panel shaker style door we were putting in the bathroom. We wanted a square crystal doorknob that would work with the door style, but still kind of fit in with the other doorknobs. I kept finding square doorknobs for $120+ & I really didn't want to pay that much for the bathroom doorknob! THEN, I found this one! I was concerned about the quality for the difference in price. I am very happy with this doorknob! We've received many compliments on the "cool doorknob"!

fantastic

These are absolutely gorgeous! They were easy to install and feel really good in your hand. I needed 4 of these in black and 1 in gold. Since this brand doesn't come in gold had to get it from a rival. It was 2x as expensive and 2x as hard to install.

1 2 3

Styled for Real Homes

See It in Your Space

SENY Crystal Door Knob with Square Backplate for Interior Doors applicable scenario

From entryways to bedrooms — a timeless upgrade in minutes.

FAQ

Name: SENY Crystal Door Knob with Square Backplate for Interior Doors
Brand: Seny Hardware
SKU: FFC-03
Price: 59.99 USD
Availability: InStock
Rating: 4.73 (45 reviews)

Installation

Do these fit standard U.S. doors?

Yes. These crystal door knobs fit most standard U.S. interior doors with adjustable 2-3/8" or 2-3/4" backset compatibility.

Is installation hardware included?

Yes. Each set includes the necessary mounting hardware and installation instructions.

Functions

What’s the difference between passage, privacy, and dummy?

Passage: non-locking, ideal for hallways and closets
Privacy: locking function for bedrooms and bathrooms
Dummy: decorative fixed knob for double doors or pull use

Can dummy knobs be installed on French doors?

Yes. Dummy crystal knobs are commonly used on interior French doors and double door applications.

Material & Durability

Are crystal door knobs durable?

Yes. Our crystal door knobs are designed for everyday interior use with durable metal construction and lead-free crystal detailing.

Shipping & Warranty

Do you offer free shipping?

Yes. We offer free U.S. shipping on all orders.

What is your return policy?

We offer 30-day returns and a 2-year warranty for added peace of mind.

Beutiful Handles

These handles are well worth their money. They give a sofisticated finished look. You can feel the quality. Enjoy!

Great value!

Compared to other similar products costing 3-4 times the price, these dummy knobs are excellent quality. Install for dummy has to be spot on as once the mounting hardware is screwed to the door, there are no other lateral adjustments for the square plate. IF done correctly, straight and level, they are gorgeous. The knobs robustly screw to the hardware and have a set screw so once installed, they are TIGHT. The glass/ crystal is clean and nicely cut. Great knobs particularly at this price point!

Beautiful and unique.

Unique door knobs. And beautiful. Getting used to them as the square shape doesn't turn as usual.

Great price!

Purchased for bathroom door. We have cut crystal doorknobs on the rest of the doors in the hallway, but that would not work on the 5-panel shaker style door we were putting in the bathroom. We wanted a square crystal doorknob that would work with the door style, but still kind of fit in with the other doorknobs. I kept finding square doorknobs for $120+ & I really didn't want to pay that much for the bathroom doorknob! THEN, I found this one! I was concerned about the quality for the difference in price. I am very happy with this doorknob! We've received many compliments on the "cool doorknob"!

fantastic

These are absolutely gorgeous! They were easy to install and feel really good in your hand. I needed 4 of these in black and 1 in gold. Since this brand doesn't come in gold had to get it from a rival. It was 2x as expensive and 2x as hard to install.

1 2 3

Why Choose?

Seny Story

Our Design

SENY Crystal Door Knob with Square Backplate for Interior Doors

✔ FREE U.S. SHIPPING

✔ SHIPS FAST FROM U.S.

✔ EASY RETURNS & WARRANTY

Why Customers Love It

Crystal Door Knob with Square Backplate for Interior Doors

Modern Square Backplate Door Knob with Crystal Clarity