Bench Attachments for Leg and Arm Training: Leg Developers, Preacher Curls & More

Introduction

As we all know, an adjustable bench can do much more than presses, rows, and dumbbell exercises. With the right workout bench attachments, you can add dedicated movements for leg, arm, and core training without needing a separate machine for every exercise.

Common attachments include:

• Leg Extension – targets the quadriceps
• Leg Curl – trains the hamstrings 
  
• Preacher Curl – supports focused biceps training 
  
• Ab/Core Attachments – add more options for core workouts 

In this article, we will introduce some attachments for leg and arm training, including leg developers and preacher curls, and more training options. 

 

How Bench with Attachments Expands Your Workout?

A weight bench is already useful for exercises such as bench presses, dumbbell presses, rows, and other free-weight movements. From our experience helping home gym users, adding the right workout bench attachments can make a single bench much more versatile. 

From Basic Bench Exercises to More Training Options

A standard adjustable bench provides a stable platform for many upper-body and free-weight exercises. However, it may have limited options for targeted movements such as leg extensions, leg curls, or preacher curls.
A leg extension bench attachment, for example, can add dedicated quad training to a standard bench. Similarly, a preacher curl bench attachment provides additional support for focused biceps exercises.

Train More Muscle Groups With One Bench

The biggest benefit of attachments is the ability to train more muscle groups without adding several separate machines to your home gym.

Depending on the attachment, one bench can support:

• Leg Training – Leg extensions and leg curls for the quadriceps and hamstrings 
  
• Arm Training – Preacher curls for more focused biceps work 
  
• Core Training – Ab exercises and other movements that require additional body support 

From our experience, a workout bench with leg extension can give home gym users more options for lower-body training while keeping the overall setup compact. We find this type of combination particularly useful for users who want to add leg-focused exercises without investing in a separate leg extension machine.

Turn a Weight Bench Into a More Versatile Training Station

A compatible attachment can change how you use your weight bench. Instead of relying on the bench only for pressing and dumbbell exercises, you can add attachments for different training needs and switch between them as needed.
The basic idea is simple:
Workout Bench Attachments → More Functions → Multi Function Bench
This approach allows one well-designed bench to support more exercises while taking up less space than multiple dedicated machines.

 

Leg Developer Attachments for Lower-Body Training

If you want to add more lower-body exercises to an adjustable bench, a leg developer attachment can be a practical addition. A well-designed leg extension bench attachment can support both leg extensions and leg curls, allowing you to train the front and back of your thighs without adding a separate leg machine.

Leg Extension — Focus on the Quadriceps

Leg extensions are an isolation exercise that primarily targets the quadriceps at the front of the thighs. Unlike compound movements such as squats, the movement allows you to focus more directly on the quads.
A leg extension attachment typically uses a padded roller to support the lower legs. As you extend your knees, the roller moves upward with your legs, creating resistance throughout the movement.
From our experience helping home gym users, leg extensions can be a practical accessory exercise after larger compound movements such as squats, lunges, or leg presses. We find that a workout bench with leg extension gives users an easy way to add dedicated quad training without needing to purchase a separate leg extension machine.

Leg Curl — Target the Hamstrings

It works the hamstrings, the muscles located along the back of the thighs. Depending on the attachment design, the exercise may be performed in a seated or lying position.
A leg developer uses padded rollers to keep the lower legs supported while you bend your knees against resistance. This creates a more focused movement for the hamstrings and complements exercises that primarily train the front of the legs.
When choosing workout bench attachments, consider its adjustment range, roller position, padding, and compatibility with your bench to ensure a comfortable and secure setup.

Why Combine Leg Extension and Curl?

Leg extensions and curls target different sides of the upper leg, making them a natural combination for bench-based leg training.
Leg Extension Bench Attachment → Quadriceps
Leg Curl → Hamstrings
Adding both movements to your workout gives you more options for targeted lower-body training. Instead of using your bench only for presses and free-weight exercises, a compatible leg developer can help turn it into a more versatile training station.

 

Preacher Curl Attachments for Arm Training

What Is a Preacher Curl Attachment?

A preacher curl bench attachment is a padded support designed to stabilize your upper arms during biceps curls. By keeping your arms supported, it helps reduce unnecessary movement and allows you to focus more directly on the curling motion.
Most preacher curl attachments connect to the front of a compatible adjustable bench. Depending on the bench design, the pad may be removable, adjustable, or combined with other workout bench attachments such as a leg developer. This makes a weight bench with preacher curl attachment a practical option for adding more arm exercises without taking up the space of a separate preacher curl machine.

What Muscles Does a Preacher Curl Train?

The preacher curl primarily targets the biceps, with the forearms also contributing depending on your grip and the type of curl you perform.
From our experience, the supported arm position makes preacher curls a useful option when you want to focus more directly on your biceps. Because the upper arms remain supported against the pad, the movement is more controlled than many standing curl variations. We find this can help users maintain a consistent range of motion and stay focused on the lifting phase throughout each repetition.

Why Add a Preacher Pad to a Weight Bench?

Adding a preacher pad can expand the exercises you can perform with one bench. Instead of using your bench only for presses, rows, or other basic movements, you can also use it for more focused arm training.

Key benefits include:

• More focused arm training: The pad supports your upper arms and helps keep the movement controlled. 
  
• Better arm support: A padded surface provides a stable position for seated or supported curls. 
  
• More exercise variety: One attachment can add another useful movement to your workout routine. 
  
• Less equipment: A removable preacher pad can provide some of the functionality of a dedicated preacher curl station without requiring another large machine. 

For example, the Keppi Bench 3000 uses a removable preacher pad that can be added when you want to focus on biceps training and removed when you need the bench for other exercises. This type of setup can be useful for home gyms where one bench needs to support multiple training goals. If you're comparing a leg extension bench attachment with a preacher curl bench attachment, the main difference is the type of training they support. A leg developer focuses on lower-body isolation. A preacher pad is designed mainly for arm training.

More Workout Bench Attachments for Core Training

Ab Attachments

Ab attachments are designed to provide extra support during core-focused exercises. They can help secure your body while performing sit-ups, crunches, and other abdominal movements, making it easier to maintain a stable position throughout the exercise. Depending on the attachment design, they may support the feet, ankles, or lower legs, allowing you to focus more on controlled core movement.

Leg Hold-Down Attachments

Leg hold-down attachments help keep the lower body stable during exercises that require your feet or legs to stay firmly in place. They are particularly useful for decline sit-ups and other core movements performed on an angled bench. By reducing unnecessary leg movement, a hold-down attachment can help you maintain a more consistent training position and perform each repetition with better control.

Combining Core Attachments With an Adjustable Bench

An adjustable bench becomes more versatile when paired with the right core attachment. Changing the bench angle can create different training positions, while the attachment helps keep your body stable during the movement. For example, a flat position can be used for standard core exercises, while an inclined or declined position can add variation to your routine. The combination of adjustable angle + attachment allows one bench to support a wider range of core movements without requiring a separate piece of equipment.

Attachments for Leg vs. Arm Training

Different workout bench attachments are designed for different training goals. Leg developers can add targeted lower-body exercises, while preacher curl attachments provide more support for arm training. Core attachments offer another way to expand your workout options.

The table below provides a quick comparison:

Attachment	Main Exercise	Primary Muscle Group
Leg Extension	Leg Extension	Quadriceps
Leg Curl	Leg Curl	Hamstrings
Preacher Curl	Preacher Curl	Biceps
Ab Attachment	Sit-Up / Ab Training	Abs / Core

Whether you're building a bench with leg extension or adding a preacher curl bench attachment, choosing attachments based on your training goals can help you get more functionality from the same bench.

Can One Bench Support Multiple Attachments?

Yes. A well-designed multi-function workout bench can support several attachments for different types of training. Instead of using a separate bench for every exercise, one adjustable bench can become a more versatile training station with the right attachments.
The key is choosing a bench with compatible attachment points, a stable frame, and enough adjustment options to support different exercises.

Removable Attachments Make Training More Flexible

Removable attachments make it easier to switch between different workouts. When an attachment is not needed, you can simply remove it and use the bench for standard exercises such as bench presses, dumbbell rows, shoulder presses, and other strength movements.
This design also helps keep your training area organized. Instead of leaving every attachment installed, you can store the accessories separately and install only what you need for a specific workout.
For home gyms, this flexibility can be especially useful when space is limited.

One Bench, Multiple Training Options

With the right combination of attachments, one bench can support several areas of strength training.

Pressing → Leg Training → Arm Training → Core Training

For pressing exercises, an adjustable backrest allows you to change your training angle for flat, incline, or decline movements.
For leg training, leg extension bench attachment and leg curls can add targeted lower-body exercises without requiring a separate machine.
For arm training, a preacher curl bench attachment provides support for focused biceps exercises.
For core training, ab attachments or leg hold-down attachments can help stabilize your body during sit-ups and decline exercises.
This combination allows one multi-function workout bench to cover more training needs while taking up less space than several separate pieces of equipment.

What to Look for in a Multi-Function Bench

Not every adjustable bench is designed to support multiple attachments. Before choosing one, consider the following features:

• Multiple attachment options: Make sure the bench supports the types of attachments you plan to use.
  
• Adjustable backrest: Multiple backrest angles allow you to perform a wider range of pressing and strength exercises.
  
• Stable frame: A strong, stable frame helps keep the bench secure during training.
  
• Secure attachment points: Attachments should connect firmly to the bench without excessive movement.
  
• Suitable weight capacity: Check the bench's rated capacity and make sure it fits your training needs.
  
• Easy installation and removal: Attachments that can be installed and removed quickly make it easier to switch between exercises.

A multi-function bench is most useful when the bench and attachments are designed to work together. Before purchasing, always check attachment compatibility, mounting points, and weight capacity rather than assuming that every attachment will fit every bench.

FAQ

Conclusion

Workout bench attachments can turn a standard weight bench into a more versatile training station. Leg developers support movements such as leg extensions and leg curls, while preacher curl attachments help target the biceps. Core attachments can also add more training options for abdominal and decline exercises.
Before choosing an attachment, always check your bench’s compatibility, mounting system, and weight capacity. With the right combination, one adjustable bench can support a wider range of leg, arm, and full-body workouts.