Marcy JD3.1 Adjustable Hyper Extension Bench
- 308 lb maximum weight
- 27.5 x 43.5 x 37.5 inches, 42 lb
- Iron frame, dark grey
- Manual and warranty card included
Last refreshed Jul 5, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A single-purpose hyperextension bench with an iron frame and a stated weight limit. The listing does not describe the adjustment range or the pad build.
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ASIN: B000ASB66OModel: JD3.1Category: Roman Chairs
Overview
A corner of a garage or spare room is enough for this iron hyperextension bench, which is meant for back and posterior chain work. It ships with a user manual and a warranty card.
The reason to buy is the single-purpose bench with a firm weight rating and a stable-looking iron frame. The limitation is the missing detail on how it adjusts and what the pads are made of.
Who it's for
Home gym users training the lower back, glutes and hamstrings can use it in a small space. Anyone wanting a bench that also handles presses or sit-ups, or who needs listed adjustment steps, should look elsewhere.
Pros and cons
- Stated weight limit
- Warranty card included
- Moderate overall footprint
- Adjustment range not listed
- Pad details not listed
- Single exercise focus
Performance notes
The bench anchors the hips and ankles so the torso can hinge, which loads the back and glutes. An iron frame resists flex under load, and the stated weight limit sets the safe range. How well it fits depends on the adjustment range, which is not given.
Specifications
| Brand | Marcy |
|---|---|
| Model | JD3.1 |
| Dimensions & fit | |
| Weight Capacity Maximum | 308 pounds |
| Item Dimensions D x W x H | 27.5 D x 43.5 W x 37.5 H inches |
| Item weight | 42 pounds |
| Construction & materials | |
| Material | Iron |
| Color | Dark grey |
| Included components | |
| Included Components | User manual, warranty card, one hyperextension bench |
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Frequently asked questions
Is the Marcy hyper extension bench a full home gym?
No. It is a single hyperextension bench with a manual and a warranty card.
How much weight does the Marcy bench hold?
The maximum weight capacity is 308 pounds.
What comes with it?
One hyperextension bench, a user manual and a warranty card.
How do I adjust the Marcy bench?
The listing says adjustable but gives no steps or range, so check the manual.