Parcel ground shipping
Items weighing 149 lb or less ship by ground parcel rather than freight.
Receive by Sep 21
New
BUILT Strength Fractal Series Leg Extension
$3,295.00
In Stock
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: Sep 21
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: 65" × 42" × 58" tall
Financing: From $174.37/mo or 0% APR with
Check your purchasing powerWhat 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.
Pairs well with this
Nothing selected yet
Added as separate lines on your order.
Product details
Commercial-grade equipment, inspected and supported by warranty.
The BUILT Strength Fractal Series Leg Extension isolates the quadriceps through a seated extension with an ergonomic seat angle engineered to reduce knee pressure — the seat geometry positions the hip and thigh in the correct relationship to the knee joint, distributing the extension forces more evenly across the patellar tendon and reducing shear stress under heavy loading. An adjustable backrest and pivoting ankle pad accommodate different leg lengths for precise positioning before every set.
A 300 lb selectorized stack supports bilateral and unilateral leg extensions with smooth, consistent tension through the full extension arc. A 636 lb heavy-duty commercial steel frame delivers the structural stability and longevity for sustained professional quad isolation training. New.
Primary muscles targeted
Rectus Femoris Vastus Lateralis Vastus Medialis Vastus Intermedius
Secondary muscles
Hip Flexors Tibialis Anterior
Key features
Ergonomic Seat Angle — Reduced Knee Pressure
The seat angle positions the hip and thigh correctly relative to the knee joint — distributing extension forces more evenly and reducing patellar tendon shear stress under heavy loading for joint-friendly quad isolation training.
Adjustable Backrest & Pivoting Ankle Pad
An adjustable backrest and pivoting ankle pad accommodate any leg length and preferred starting position — keeping the knee joint correctly aligned with the pivot axis for consistent quad loading across all user sizes.
Bilateral & Unilateral Extension
Both legs together for standard bilateral quad development, or single-leg unilateral work for addressing left-right strength imbalances — both options supported by the same 280 lb selectorized stack without any attachment change.
300 lb Stack · 636 lb Commercial Frame
A 300 lb selectorized stack covers light quad activation through serious progressive loading. The 636 lb commercial-grade steel frame provides the structural stability for sustained high-frequency professional quad isolation training.
Specifications
Dimensions (L × W × H)
65" × 42" × 58"
Machine Weight
636 lb
Weight Stack
300 lb
Pin-select selectorized
Condition
New
Fractal Series · BUILT Strength
Design & Adjustability
Ergonomic Seat Angle · Adj. Backrest & Pivot Pad
Joint-friendly seat angle · Adjustable backrest & pivoting ankle pad · Bilateral & unilateral · 280 lb selectorized
Frame
11-Gauge (3mm) Steel
1. Which selectorized lower-body machines are essential?
Leg extension, leg curl, and seated leg press are are top sellers and most common in gyms.
2. How do I adjust range of motion?
Most machines have adjustable backrests and pivot points; use numbered markers for consistency.
3. Do they require floor mounting?
Not required, but it never hurts; ensure a level surface and clear 3′ around the machine.
4. What financing options exist?
Same 0% APR financing available for all selectorized machines via Shop Pay.
5. Are replacement parts available?
Yes—Build A Gym stocks common cables, pulleys, and bushings for quick maintenance.
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.
The BUILT Strength Fractal Series Leg Extension isolates the quadriceps through a seated extension with an ergonomic seat angle engineered to reduce knee pressure — the seat geometry positions the hip and thigh in the correct relationship to the knee joint, distributing the extension forces more evenly across the patellar tendon and reducing shear stress under heavy loading. An adjustable backrest and pivoting ankle pad accommodate different leg lengths for precise positioning before every set.
A 300 lb selectorized stack supports bilateral and unilateral leg extensions with smooth, consistent tension through the full extension arc. A 636 lb heavy-duty commercial steel frame delivers the structural stability and longevity for sustained professional quad isolation training. New.
Primary muscles targeted
Rectus Femoris Vastus Lateralis Vastus Medialis Vastus Intermedius
Secondary muscles
Hip Flexors Tibialis Anterior
Key features
Ergonomic Seat Angle — Reduced Knee Pressure
The seat angle positions the hip and thigh correctly relative to the knee joint — distributing extension forces more evenly and reducing patellar tendon shear stress under heavy loading for joint-friendly quad isolation training.
Adjustable Backrest & Pivoting Ankle Pad
An adjustable backrest and pivoting ankle pad accommodate any leg length and preferred starting position — keeping the knee joint correctly aligned with the pivot axis for consistent quad loading across all user sizes.
Bilateral & Unilateral Extension
Both legs together for standard bilateral quad development, or single-leg unilateral work for addressing left-right strength imbalances — both options supported by the same 280 lb selectorized stack without any attachment change.
300 lb Stack · 636 lb Commercial Frame
A 300 lb selectorized stack covers light quad activation through serious progressive loading. The 636 lb commercial-grade steel frame provides the structural stability for sustained high-frequency professional quad isolation training.
Specifications
Dimensions (L × W × H)
65" × 42" × 58"
Machine Weight
636 lb
Weight Stack
300 lb
Pin-select selectorized
Condition
New
Fractal Series · BUILT Strength
Design & Adjustability
Ergonomic Seat Angle · Adj. Backrest & Pivot Pad
Joint-friendly seat angle · Adjustable backrest & pivoting ankle pad · Bilateral & unilateral · 280 lb selectorized
Frame
11-Gauge (3mm) Steel
1. Which selectorized lower-body machines are essential?
Leg extension, leg curl, and seated leg press are are top sellers and most common in gyms.
2. How do I adjust range of motion?
Most machines have adjustable backrests and pivot points; use numbered markers for consistency.
3. Do they require floor mounting?
Not required, but it never hurts; ensure a level surface and clear 3′ around the machine.
4. What financing options exist?
Same 0% APR financing available for all selectorized machines via Shop Pay.
5. Are replacement parts available?
Yes—Build A Gym stocks common cables, pulleys, and bushings for quick maintenance.
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.
$3,295.00
This machine
Bundle total
- Items
- $3,829.64
- Bundle price
- $3,638.16
- Estimated bundle saving
- −$191.48
- Ships complete in
- 4–6 weeks
One freight booking, one delivery window, one crew. Inside Delivery & Assembly available on the whole bundle.