Parcel ground shipping
Items weighing 149 lb or less ship by ground parcel rather than freight.
Receive by Nov 4estimated, may change
New
BUILT Strength Fractal Series Calf Extension
$2,895.00
4.8
ConditionNew
Availability
Only 1 left in stock
Pay over timeBusiness financing
Business financing from $…/mo*
*Estimate, subject to credit approval.
Parts & Labor, Plus Lifetime Frame
New equipment. Coverage starts on the date of delivery.
Shipping calculator
Enter your state and ZIP code to see delivery options and prices.
Machine overview
Condition: New
Warranty: 1 Year Parts & Labor (Extended Available)
Returns: 30-Day Returns & Exchanges
Shipping: Driveway Delivery, or Inside Delivery & Assembly
Receive by: Nov 4
How It Ships: Crated w/ Assembly Manual
Delivery options
How delivery works
Your item’s shipping method and price are confirmed in the shipping calculator and at checkout. Here is what each delivery path means.
Driveway freight delivery
Your equipment is palletized and protected. The freight carrier schedules delivery, then uses a liftgate to lower it to your curb or driveway. Moving it inside and unpacking it are up to you.
Inside delivery & assembly
When selected and available for your address, the delivery team brings the equipment into the room, assembles and tests it, then removes the packaging.
Full truckload
For commercial builds and multi-pallet orders, a dedicated trailer keeps the full order together in one delivery. We confirm the unloading plan before the truck ships.
Size: 40" × 69" × 58" tall
What New Means
Brand new, current-model equipment shipped in the factory crate with the full manufacturer warranty. Extended coverage is available at checkout.
Warranty Coverage
New and remanufactured equipment are both covered for one year, parts and labor, backed by us. Extended protection is available on either through BAG Care+. Used equipment is sold as-is with no warranty coverage, and is described honestly before you buy. We service nationwide - every ZIP code in the country - so coverage travels with the machine.
30-Day Returns & Exchanges
Change your mind within 30 days of delivery and you can return the machine or exchange it for a different size, color or configuration.
Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns and exchanges. Freight items must go back packaged to the same standard they arrived in. We will tell you exactly what that means before anything is collected.
Anything that arrives damaged or fails under warranty is handled separately and carries no restocking fee. Full terms are in our Returns, Exchange & Refund Policy.
Add before it ships
Before the freight bookingCoverage and accessories have to go on the same booking as the machine. Add them here and they travel together.
Extended warrantyRecommendedEvery machine includes 1 year parts and labor.
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Build A Gym
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a month ago
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Great communication, products, and I'm very happy with what I purchased from them. I will be back!
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a month ago
★★★★★
Just want to say thank you to the team at CTX!! Not only was shipping fast and efficient, but customer service was outstanding!! Any question that was needed to be answered was meet with a quick response. Thank you again!!
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a month ago
★★★★★
Dillon was very helpful, patient with answering all my questions, very knowledgeable. He insured I had all the necessary answers before I made my purchase. Thanks Dillon, great customer service!
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2 months ago
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I was thinking about getting Ozempic, but I’m not in the mood to go blind yet. So I decided I’d do it the old fashioned way and called CTX.
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2 months ago
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CTX Built is a great company to work with. Excellent communication and customer service. Their team was easy to work with and extremely helpful. Would do more business with them and I plan to.
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2 months ago
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CTX stands by their products. I recently purchased a Precor elliptical from them & it arrived with a mechanical flaw. They coordinated with a technician to get my product fixed like new. They accomplished this despite the fact that my home was two states away. Special thank you to Nichole for staying accessible and attentive throughout the process!
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2 months ago
★★★★★
Great product and awesome leadership. Equipment was straight forward to build and team is always responsive when needing information or any help whatsoever. So glad I found them for outfitting my gym, best decision I have ever made for my business!
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2 months ago
★★★★★
Absolutely best in business! Not only is Dillon just genuinely a great human being, he’s real and honest. Loved everything I’ve gotten from him and the team. I’m about 10-15 pieces in deep with him and not stopping anytime soon! Absolutely recommend hitting these guys up for home/commercial equipment. New or refurbished!
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4 months ago
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Excellent selection of products with a large selection, consultants will help you decide
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4 months ago
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Dillion was great to work with!! Super friendly, quick turn around time, and great at communicating! The guys who delivered it Robb and JJ were also amazing. They came prepared and were very fast and efficient. They offered to help us move around other equipment to ensure we loved our gym! Super nice people and an amazing company! I would highly recommend working with them. Oh and the equipment itself is high quality and looks great in our home gym!
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5 months ago
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I inquired to sell a few machines from my personal training studio. From beginning to the end, customer service was great! CTX was very quick with responses and communication was there! I very much will take my business back to CTX, and I highly recommend them.
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5 months ago
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I can’t say enough great things about CTX Home Gyms. They did an incredible job on both my commercial gym and my home gym setup. The entire process was seamless from beginning to end — professional communication, top-quality equipment, attention to detail, and outstanding customer service.
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5 months ago
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Dillon and his team outfitted my entire new gym. We worked together from the beginning stages. They had the same exact vision I had. They did everything possible to make our dream gym. And they did!!
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The entire experience was amazing. I literally told them what I wanted and they made it even better. The Build line is amazing. I get compliments on it daily. From the stitching on the equipment to how smooth it is. I can not say enough good things about it. And the plate loaded build equipment is legit. I’m an equipment snob. I love finding the old pieces. But this stuff is even better. Pure quality and can stand some big weights!
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Our own equipment line
What BUILT Strength is
Commercial-grade gear we design, stock and stand behind, sold only through Build A Gym.
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Heavy commercial steel
Frames are laser-cut and welded from heavy-gauge steel, built for daily commercial use.
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We audit the factory’s work
Our team audits the factory regularly, checking machines, welds and finishes before they ship to Texas.
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Stocked in Texas
Most of the range ships from our Jarrell, TX warehouse. Try it first at our Georgetown showroom.
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Delivered and backed for life
1 year parts and labor plus lifetime frame coverage. Add inside delivery and assembly at checkout.
Product details
Commercial-grade equipment, inspected and supported by warranty.
Quick answer: A seated calf extension (or seated calf raise) trains the gastrocnemius and soleus through plantarflexion with the knee bent. The BUILT Strength Fractal Series Calf Extension gives commercial gyms a guided selectorized calf station that supports a full stretch and contraction.
The BUILT Strength Fractal Series Calf Extension targets both the gastrocnemius and soleus through a seated plantar flexion movement on an angled footplate that supports a full dorsiflexion-to-plantarflexion range of motion - the deep stretch at the bottom and complete contraction at the top that calf development demands. The seated position with knees bent specifically de-emphasizes the gastrocnemius and increases soleus isolation compared to standing calf raise machines, making this the more complete lower-leg development option.
A padded seat and leg restraint maintain correct alignment and prevent the legs from shifting under load, and a 220 lb selectorized stack provides the loading range for both light activation work and serious progressive calf strength training. Compact 40" × 69" footprint, 581 lb commercial frame. New.
Primary muscles targeted
Soleus Gastrocnemius
Secondary muscles
Tibialis Anterior Peroneals
Key features
Angled Footplate - Full Plantar Flexion Range
The angled footplate positions the ball of the foot correctly for a full dorsiflexion stretch at the bottom through maximum plantarflexion contraction at the top - the complete calf arc needed for both gastrocnemius and soleus fiber recruitment.
Seated Position - Soleus Isolation Emphasis
The seated, knees-bent position reduces gastrocnemius recruitment and shifts emphasis to the soleus - the muscle most undertrained on standing calf raise machines - making this the more complete lower-leg development option.
Padded Seat & Leg Restraint
A padded seat and leg restraint keep the user correctly positioned and prevent leg shift under heavy loads - maintaining consistent footplate contact and loading angle through every rep of every set.
220 lb Selectorized Stack
A 220 lb pin-select stack provides a wide loading range for calf development - from light activation and warm-up work through serious progressive lower-leg strength training without a stack ceiling limiting progress.
Specifications
Dimensions (L × W × H)
40" × 69" × 58"
Machine Weight
581 lb
Weight Stack
220 lb
Pin-select selectorized
Condition
New
Fractal Series · BUILT Strength
Design
Seated · Angled Footplate · Full ROM
Angled footplate · Padded seat & leg restraint · Full dorsiflexion range · Soleus emphasis · 220 lb stack
Frame
11-Gauge (3mm) Steel
Buyer questions
What does a standing calf raise machine work?
Primarily the gastrocnemius (upper calf) through a standing plantarflexion under load. The soleus assists, especially when the knee softens.
Seated calf extension vs standing calf raise?
Seated work with a bent knee biases the soleus more. Standing work biases the gastrocnemius. Pair them when calf development is a priority.
Why buy a dedicated calf machine?
Bodyweight calves stall fast. A selectorized calf machine lets members add load week to week without balancing a barbell on the shoulders.
Related: BUILT Fractal Series, Compact standing calf raise, BUILT Strength collection.
PDF
Assembly manual
BUILT Strength Fractal Series Calf Extension
The step-by-step factory guide for putting this machine together. Handy to look over before delivery day.
View manual
Download PDF
Rather not build it?
We will assemble it for you
Brought inside to the room you choose
Assembled and set up by our crew
Packaging taken away
Choose Inside Delivery & Assembly as your delivery option at checkout.
How assembly works
1. What are the exact dimensions and footprint of this calf extension machine?
This machine measures 40 inches front to back, 69 inches wide, and 58 inches high, with a 19 square foot footprint. Allowing for extra clearance around the machine is suggested for comfortable use and access.
2. How much weight can I load on the selectorized stack?
The built-in selectorized weight stack offers up to 220 pounds of resistance.
3. What muscles does this machine target and how does it differ from standing calf raise machines?
It primarily targets the soleus and gastrocnemius muscles, with additional work for the tibialis anterior and peroneals. The seated, knees-bent position emphasizes the soleus more than standing calf raise machines, providing more complete lower-leg development.
4. Is this machine suitable for commercial gym use as well as home gyms?
Yes, this new Fractal Series model is built with an 11-gauge steel commercial frame and is designed for both commercial facilities and home gyms.
5. What warranty coverage comes with this new machine?
New BUILT Strength equipment includes the manufacturer warranty, and you can add extended coverage with BAG Care+ on the product page. Full warranty details are at buildagym.com/pages/product-guarantees.
6. What delivery options are available for this machine?
You can choose Driveway Freight Delivery or Inside Delivery & Assembly at checkout. The shipping calculator on the page will show the freight price for your location.
30-Day Returns & Exchanges
Buy with confidence. Every Build A Gym order includes a 30-day window to return or exchange, whether you want a different size, color or configuration. Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns; warranty and damage claims carry no restocking fee. Full details in our Returns, Exchange & Refund Policy.
Quick answer: A seated calf extension (or seated calf raise) trains the gastrocnemius and soleus through plantarflexion with the knee bent. The BUILT Strength Fractal Series Calf Extension gives commercial gyms a guided selectorized calf station that supports a full stretch and contraction.
The BUILT Strength Fractal Series Calf Extension targets both the gastrocnemius and soleus through a seated plantar flexion movement on an angled footplate that supports a full dorsiflexion-to-plantarflexion range of motion - the deep stretch at the bottom and complete contraction at the top that calf development demands. The seated position with knees bent specifically de-emphasizes the gastrocnemius and increases soleus isolation compared to standing calf raise machines, making this the more complete lower-leg development option.
A padded seat and leg restraint maintain correct alignment and prevent the legs from shifting under load, and a 220 lb selectorized stack provides the loading range for both light activation work and serious progressive calf strength training. Compact 40" × 69" footprint, 581 lb commercial frame. New.
Primary muscles targeted
Soleus Gastrocnemius
Secondary muscles
Tibialis Anterior Peroneals
Key features
Angled Footplate - Full Plantar Flexion Range
The angled footplate positions the ball of the foot correctly for a full dorsiflexion stretch at the bottom through maximum plantarflexion contraction at the top - the complete calf arc needed for both gastrocnemius and soleus fiber recruitment.
Seated Position - Soleus Isolation Emphasis
The seated, knees-bent position reduces gastrocnemius recruitment and shifts emphasis to the soleus - the muscle most undertrained on standing calf raise machines - making this the more complete lower-leg development option.
Padded Seat & Leg Restraint
A padded seat and leg restraint keep the user correctly positioned and prevent leg shift under heavy loads - maintaining consistent footplate contact and loading angle through every rep of every set.
220 lb Selectorized Stack
A 220 lb pin-select stack provides a wide loading range for calf development - from light activation and warm-up work through serious progressive lower-leg strength training without a stack ceiling limiting progress.
Specifications
Dimensions (L × W × H)
40" × 69" × 58"
Machine Weight
581 lb
Weight Stack
220 lb
Pin-select selectorized
Condition
New
Fractal Series · BUILT Strength
Design
Seated · Angled Footplate · Full ROM
Angled footplate · Padded seat & leg restraint · Full dorsiflexion range · Soleus emphasis · 220 lb stack
Frame
11-Gauge (3mm) Steel
Buyer questions
What does a standing calf raise machine work?
Primarily the gastrocnemius (upper calf) through a standing plantarflexion under load. The soleus assists, especially when the knee softens.
Seated calf extension vs standing calf raise?
Seated work with a bent knee biases the soleus more. Standing work biases the gastrocnemius. Pair them when calf development is a priority.
Why buy a dedicated calf machine?
Bodyweight calves stall fast. A selectorized calf machine lets members add load week to week without balancing a barbell on the shoulders.
Related: BUILT Fractal Series, Compact standing calf raise, BUILT Strength collection.
PDF
Assembly manual
BUILT Strength Fractal Series Calf Extension
The step-by-step factory guide for putting this machine together. Handy to look over before delivery day.
View manual
Download PDF
Rather not build it?
We will assemble it for you
Brought inside to the room you choose
Assembled and set up by our crew
Packaging taken away
Choose Inside Delivery & Assembly as your delivery option at checkout.
How assembly works
1. What are the exact dimensions and footprint of this calf extension machine?
This machine measures 40 inches front to back, 69 inches wide, and 58 inches high, with a 19 square foot footprint. Allowing for extra clearance around the machine is suggested for comfortable use and access.
2. How much weight can I load on the selectorized stack?
The built-in selectorized weight stack offers up to 220 pounds of resistance.
3. What muscles does this machine target and how does it differ from standing calf raise machines?
It primarily targets the soleus and gastrocnemius muscles, with additional work for the tibialis anterior and peroneals. The seated, knees-bent position emphasizes the soleus more than standing calf raise machines, providing more complete lower-leg development.
4. Is this machine suitable for commercial gym use as well as home gyms?
Yes, this new Fractal Series model is built with an 11-gauge steel commercial frame and is designed for both commercial facilities and home gyms.
5. What warranty coverage comes with this new machine?
New BUILT Strength equipment includes the manufacturer warranty, and you can add extended coverage with BAG Care+ on the product page. Full warranty details are at buildagym.com/pages/product-guarantees.
6. What delivery options are available for this machine?
You can choose Driveway Freight Delivery or Inside Delivery & Assembly at checkout. The shipping calculator on the page will show the freight price for your location.
30-Day Returns & Exchanges
Buy with confidence. Every Build A Gym order includes a 30-day window to return or exchange, whether you want a different size, color or configuration. Return shipping is the customer's responsibility and a 15% restocking fee applies to preference returns; warranty and damage claims carry no restocking fee. Full details in our Returns, Exchange & Refund Policy.
Save 5%
Complete the room
The machines our install crew puts in the same room as this one - priced as one shipment, delivered in one booking.
$2,895.00
This machine
Bundle total
- Items
- $5,465.00
- Bundle price
- $5,191.75
- Estimated bundle saving
- −$273.25
- Everything arrives by
- Nov 4
One freight booking, one delivery window, one crew. Inside Delivery & Assembly available on the whole bundle.