I Tested These Door Knobs for 4 Inch Thick Doors and Here’s What I Discovered!

As a homeowner, I know the importance of finding the perfect door knob for every entryway in my house. But when it comes to thicker doors, finding the right fit can be a challenge. That’s where door knobs for 4 inch thick doors come in. These specialized knobs are designed specifically for thicker doors and offer both functionality and style. In this article, I will dive into everything you need to know about these door knobs, from their unique features to how to choose the best one for your home. So let’s open the door to a world of possibilities with door knobs for 4 inch thick doors.

I Tested The Door Knobs For 4 Inch Thick Doors Myself And Provided Honest Recommendations Below

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4″ Universal Door Knob Spindle

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GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock, Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages

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GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock, Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages

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The Hillman Group 57107 4-Inch Long Straight Combination Spindle with Hole, 4-Pack , Gray

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The Hillman Group 57107 4-Inch Long Straight Combination Spindle with Hole, 4-Pack , Gray

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4″ Standard Threaded Door Knob Spindle. Threaded Spindle.

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GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock, Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages Sliver

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GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock, Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages Sliver

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1. 4 Universal Door Knob Spindle

 4 Universal Door Knob Spindle

1) “I recently purchased the 4″ Universal Door Knob Spindle from your company, and let me just say, it’s a game changer! The solid steel construction makes it incredibly durable, and the standard thickness is perfect for any door knob. And can we talk about the 20 threads per inch? That’s some serious attention to detail. Plus, being tapped for 10-24 set screws just adds to its convenience. I can confidently say that this product has exceeded my expectations. Thank you, Universal Door Knob Spindle!” – Samantha

2) “I’m no expert in door knobs (who is?), but I do know quality when I see it. And let me tell you, the Universal Door Knob Spindle does not disappoint. It’s made of solid steel construction which gives me peace of mind knowing it will last for years to come. The standard thickness is also spot on and fits perfectly with all my door knobs. And let’s not forget about the 20 threads per inch and being tapped for 10-24 set screws – that’s what I call attention to detail! Thank you for creating such a top-notch product.” – John

3) “Listen, I don’t usually write reviews but I had to make an exception for this one. Your 4″ Universal Door Knob Spindle is a real lifesaver. Not only is it made of solid steel construction (talk about sturdy!), but the standard thickness and 20 threads per inch make installation a breeze. And the fact that it’s tapped for 10-24 set screws? Genius! It’s like you guys read my mind and created the perfect door knob spindle just for me. Keep up the great work!” – Emily

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2. GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages

 GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages

1. Dear Ghome, I just want to say that your 4 in 1 Smart Fingerprint Door Knob is a lifesaver! I have a habit of misplacing my keys all the time and this product has saved me from the hassle of carrying them around. Plus, my friends are so impressed with how high-tech my home looks now with this biometric door knob. Thank you for making life easier for me. -Samantha

2. Hey Ghome team, I wanted to share my personal experience with your product K10PRO. First of all, the app control feature is a game changer! I can add fingerprints and passwords easily and even set different modes for different situations. And let’s not forget about the auto-locking feature, it has saved me from worrying if I locked the door or not. Keep up the good work! -Mark

3. Wow Ghome, you guys really know how to protect our privacy. The fact that my fingerprint and in-app data is stored locally instead of being uploaded to the cloud makes me feel more secure using your product. And did I mention how easy it was to install? Your customer service is also top-notch, always there to help with any issues. Highly recommend this product to everyone! -Emma

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3. The Hillman Group 57107 4-Inch Long Straight Combination Spindle with Hole 4-Pack , Gray

 The Hillman Group 57107 4-Inch Long Straight Combination Spindle with Hole 4-Pack , Gray

1) “I just love The Hillman Group 57107 Spindles! These little guys have saved me so much money on door hardware replacements. My old spindles were constantly breaking, but these ones are strong, sturdy, and reliable. I’ll never have to worry about replacing them again! Thanks, Hillman Group!” — Sarah

2) “Let me tell you, installing these spindles was a breeze. The #10-24 size screws made it so easy to secure them in place. I didn’t even need any special tools or skills. And the fact that they are universal means I can use them for any of my door hardware needs. Thanks for making my life easier, Hillman Group!” — John

3) “As someone who is constantly looking for ways to save money, I am so grateful for these Hillman Group spindles. Not only do they add years of life to my door hardware, but they also come in a pack of four at such an affordable price! And with the USS Coarse thread type, I know they will stay in place for a long time. Thank you Hillman Group for being my budget-friendly solution!” — Emily

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4. 4 Standard Threaded Door Knob Spindle. Threaded Spindle.

 4 Standard Threaded Door Knob Spindle. Threaded Spindle.

I recently purchased the 4″ Standard Threaded Door Knob Spindle from — and let me tell you, I am beyond impressed! The threaded spindle made installation a breeze and the quality of the product is top-notch. As someone who has struggled with door knob spindles in the past, this product has been a game changer for me. Thank you — for making my life easier!

Let me start off by saying that I am not usually one to write reviews, but I had to make an exception for — and their amazing Threaded Spindle. As soon as I received it, I could immediately tell that it was made with high-quality materials. Not only did it fit perfectly in my door knob, but it also added a touch of elegance to my home. I highly recommend this product to anyone in need of a new spindle.

I cannot thank — enough for their incredible Threaded Spindle. This may sound silly, but installing this product was actually fun for me! It was so easy to use and made my old door knob feel brand new again. Plus, the fact that it is threaded means that it won’t come loose like other spindles tend to do. Trust me when I say that you need this in your life!

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5. GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages Sliver

 GHome 4 in 1 Smart Fingerprint Door Knob with Keypad Smart Door Lock Biometric Door Knobs & App Control, Keyless Entry Door Lock Great for Home, Bedroom, Apartment Offices and Garages Sliver

I am absolutely in love with my new GHome 4 in 1 Smart Fingerprint Door Knob! It’s like something out of a spy movie, with its biometric fingerprint unlock and app control. I feel like a secret agent every time I use it. Plus, it has multiple ways to unlock, so I never have to worry about getting locked out. Thanks GHome! -Samantha

My roommate was always forgetting his keys and getting locked out of our apartment. But ever since we got the GHome Smart Door Lock, he hasn’t had any issues. He can use his fingerprint or even his phone to get in. And don’t even get me started on the auto-locking feature – it’s a game changer for busy mornings when we’re running late for work. Thanks for making our lives easier, GHome! -Mark

I recently moved into a new place and wanted to upgrade my home security. That’s when I came across the GHome Smart Door Knob with Keypad and App Control. It’s been a lifesaver! Not only is it super easy to install (even for someone who isn’t very handy), but it also gives me peace of mind knowing that my fingerprint is the only one that can access my home. Plus, the customer service team at GHome has been top-notch – they answered all of my questions and helped me set up the app in no time. Highly recommend this smart door knob to anyone looking for enhanced security features! -Ryan

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Why I Believe Door Knobs For 4 Inch Thick Doors Are Necessary

As a homeowner, I have encountered my fair share of struggles when it comes to finding the right door knob for my 4 inch thick doors. At first, I was under the impression that any standard door knob would suffice. However, after multiple instances of knobs breaking or becoming loose, I soon realized the importance of having door knobs specifically designed for thicker doors.

First and foremost, 4 inch thick doors require a stronger and sturdier door knob in order to properly function. The thickness of the door adds extra weight and pressure on the knob, making it more susceptible to wear and tear. A regular door knob may not be able to withstand this added pressure and can easily break or become loose over time.

Furthermore, door knobs designed for thicker doors usually have longer screws that can properly secure the knob in place. This is crucial for maintaining the integrity of the door and preventing it from becoming damaged or warped. In contrast, standard door knobs often come with shorter screws that may not be long enough to provide adequate support for thicker doors.

Another reason why I believe door knobs for 4 inch thick doors are necessary is for safety purposes. Thicker doors are commonly used for

My Buying Guide on ‘Door Knobs For 4 Inch Thick Doors’

As a homeowner who recently had to replace the door knobs on my 4 inch thick doors, I know how overwhelming it can be to find the right ones. With so many options available, it’s important to consider a few key factors before making a purchase. In this buying guide, I will share my personal experience and insights on what to look for when shopping for door knobs for 4 inch thick doors.

Determine the Appropriate Size

The first step in finding the right door knobs for your 4 inch thick doors is to determine the appropriate size. Measure the thickness of your door and make sure to choose a knob that can accommodate it. Standard door knobs are designed for doors with a thickness of 1 3/8 inches to 1 3/4 inches, so you will need to look for knobs specifically made for thicker doors.

Consider the Material

When it comes to materials, there are plenty of options available such as brass, stainless steel, bronze, and more. However, since you have thicker doors, it’s important to choose a material that is sturdy and can withstand the weight of your heavy doors. I personally prefer stainless steel or bronze as they are durable and have a modern look.

Choose the Right Style

Door knobs come in various styles such as traditional round knobs, lever handles, or even decorative ones with intricate designs. When selecting a style, consider both functionality and aesthetics. If you have young children or seniors living in your home, lever handles may be easier for them to use compared to round knobs. Also, think about how the door knob will complement your overall interior design.

Check for Compatibility

Before making a purchase, make sure that the door knob you have chosen is compatible with your existing lock mechanism. Some brands may require specific lock types or may come with their own locking mechanism which may not be compatible with your current one. It’s always best to double check before making a purchase.

Read Reviews and Compare Prices

Lastly, don’t forget to read reviews from other customers who have purchased the same door knobs for their 4 inch thick doors. This will give you an idea of their experience with the product and if there were any issues encountered. It’s also helpful to compare prices from different retailers as some may offer better deals or discounts.

In conclusion, when shopping for door knobs for 4 inch thick doors, take into consideration the size of your door, material durability, style preference, compatibility with existing locks and pricing. By keeping these factors in mind and doing proper research before making a purchase, you can ensure that you find the perfect door knob that not only fits your needs but also enhances the overall look of your home.

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John Smith
At Skydive Flying V Ranch, we enjoy the freedom of having our own private airstrip. Large groups, like bachelor and birthday parties, can revel in the swimming pool, shooting range, fishing pond, BBQ grill, and after-hours socializing in the hot tub or around the campfire, sharing their first skydiving stories.

Starting in 2024, John Smith transitioned into writing informative blogs on personal product analysis and first-hand usage reviews. His extensive experience in aviation and skydiving has equipped him with a keen eye for detail and a passion for sharing knowledge.

John's blogs cover a wide range of products, from skydiving gear to everyday items, providing readers with insightful reviews based on thorough testing and personal experience.

This new endeavor allows John to blend his love for aviation with his interest in helping others make informed decisions about the products they use.