In-depth review
Marcy SB-670 Utility Bench Review (2027): The FID All-Rounder That Folds Flat
Full research review of the Marcy SB-670: flat, incline, and decline positions, fold-flat storage, pad and frame class, and who should step up to a heavier.
Marcy Adjustable Utility Bench SB-670
Marcy's long-running FID utility bench: flat, incline, and decline positions on a frame that folds flat for storage.
- Home utility class rating (see current listing for the stated figure)
- Capacity
- Flat, incline, and decline positions (FID design)
- Back positions
- Standard utility bench height class (see listing)
- Bench height
Our verdict
The SB-670 is the utility bench as a mature product: a full flat, incline, and decline menu, a seat that adjusts to match, and a frame that folds flat when the room needs to be a room again. It has sold in this form for years because it covers a complete home dumbbell and rack program without a single exotic part. Its class is stated plainly in this review: the pad, finish, and capacity are home utility grade, and lifters pressing at the top of the home range should step up to the heavy frames in this guide. Inside its class, it is the all-rounder we rank first.
What we like
- Full flat, incline, and decline range covers the complete dumbbell and rack program menu
- Folds flat for storage, which most full-size FID benches do not
- One of the longest-selling utility benches on Amazon, with the owner record and parts familiarity that brings
What to watch out for
- Pad and finish are utility class, not premium pressing spec
- Capacity is a home utility rating, below the heavy frames in this guide
- Seat and back junction has the usual two pad gap
Who it is for
Home lifters who want one proven bench for a full dumbbell and rack program in a room that also has other jobs.
The angle menu, in daily terms
Flat for pressing, a ladder of inclines for dumbbell and barbell work, and a decline position for decline pressing and anchored core work, with an adjustable seat to hold position at steep angles. That is the complete menu most home programs ever order, delivered by a simple, familiar adjustment routine that beginners learn in one session.
The fold is the differentiator
Most full-size FID benches are permanent residents. The SB-670 folds flat, which changes where it can live: against a wall, in a closet, out of the way in a shared room. Owners in apartments and spare bedrooms cite the fold, not any single angle, as the feature that kept the bench in daily use.
Pad and frame, classed honestly
The pad is a standard two piece utility design with the usual junction gap, comfortable for general training and narrower in feel than wide pressing pads. The frame is a home utility frame: stable and confidence-inspiring at home loads, and not built or rated as a commercial platform. Read the current listing's stated capacity and train inside it with the usual margin.
Ownership over years
Long model continuity shows in the feedback: a deep owner record, predictable wear points at pad vinyl and ladder contact spots, and a brand with a real parts and support channel. The recurring criticism is class, not quality: owners who outgrow it move up for capacity and pad spec, not because the bench failed.
Key specifications
- Capacity
- Home utility class rating (see current listing for the stated figure)
- Back positions
- Flat, incline, and decline positions (FID design)
- Bench height
- Standard utility bench height class (see listing)
- Pad
- Two piece pad with adjustable seat section
- Footprint
- Full-size bench in use; folds flat for storage
What owners report
Commonly praised
- Does every job a home program asks, owners say, year after year
- The fold flat storage gets used in shared rooms
- Assembly and adjustment are simple enough for beginners
Common complaints
- Pad firmness divides owners, with wide pad fans wanting more
- Not the bench for maximal rack loads
- Vinyl shows wear at the ladder contact points over time
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated November 2026.
Sources: Marcy SB-670 utility bench documentation, Amazon listing specifications
Also consider
POWERBLOCKPOWERBLOCK Travel Bench
A folding bench built to travel: 500 lb capacity, folds up flat for storage or the car, from the PowerBlock adjustable dumbbell family.
- Capacity: 500 lb capacity (manufacturer rating)
- Back positions: Travel bench positions (see current listing for the angle set)
Sources: POWERBLOCK Travel Bench documentation, Amazon listing specifications
Check price on Amazonor add to your Amazon cartChoose the POWERBLOCK Travel Bench if the fold has to go further, into a car or a life of travel between homes.
REPREP AB-3100 Adjustable Bench V3
The ladder style value standard: seven back angles, a grippy pad, and a frame that behaves above its price.
- Capacity: 700 lb capacity (manufacturer rating)
- Back positions: 7 back pad angles from flat to 85 degrees; 3 seat angles
Sources: REP AB-3100 V3 product documentation, Amazon listing specifications
Check price on Amazonor add to your Amazon cartChoose the AB-3100 for a grippier pad, a tighter ladder feel, and a 700 lb rating, accepting no decline and no fold. Read our REP AB-3100 Adjustable Bench V3 review
Based on manufacturer documentation and specifications, retailer listings, and patterns in published owner feedback. No hands-on testing is claimed for this product.
FAQ
Adjustable Weight Benches questions, answered straight
Does the SB-670 do true decline?
Yes, decline is part of its FID design, alongside flat and incline positions, and the adjustable seat helps hold position at the steeper angles.
How does it fold, and how flat is flat?
The frame folds to a flat profile for storage against a wall or in a closet, per the maker's design and listing imagery. Measure your intended storage spot against the folded dimensions in the current listing.
Is it enough bench for rack barbell pressing?
For general home loads inside its stated rating, owners use it in racks routinely. Lifters pressing heavy as a primary sport should choose one of the heavy frames in this guide, whose ratings and pad specs are built for that job.