Power rack, Smith machine, functional trainer and chin-up station in one home-gym footprint. 450kg unit rating.
BUILT FOR THE LONG HAUL.
Dual weight stacks
The G4 runs two independent 77kg (170lb) stacks — one per column — so both arms work against their own resistance and neither side gets to cheat.
Through the 2:1 functional trainer the movement stays smooth and controlled end to end, the way a commercial cable station feels.
When you outgrow them, each stack takes an upgrade to 100kg (220lb).
Cables and pulleys
Every cable is 6.2mm nylon-coated aircraft-quality steel, tested to 907kg (2000lb) — far beyond anything the stacks can ask of it.
The 2:1 ratio means 100lb on the stack gives you 50lb at the handle, which is what keeps fly and crossover work light enough to control through a full range.
Pulleys are sealed and run quiet, so the only noise in the garage is you.
Numbered adjustment
The uprights carry more than 50 laser-cut numbered positions at 1 inch spacing, so J-hooks, spotter arms and cable arms go back to exactly where you had them.
No counting holes, no guessing, no uneven set-up between left and right.
If two people share the machine, you each get a number and you are done.
Integrated Smith machine
The Smith bar runs on quad-bearing rollers — four bearings per carriage rather than nylon bushes — so it tracks without binding or rattling under load.
The bar itself is knurled, not bare tube, which matters the moment your hands get sweaty.
Use it to train heavy on your own: rack the bar anywhere in the travel with a quarter turn of the wrist.
Chin-up and landmine
A chin-up station is built into the top of the frame, and a landmine pivot mounts at the base for rotational and pressing work.
Both sit inside the same footprint, so you are not giving up another corner of the garage for them.
The landmine comes with a multigrip handle in the box.
Frame and footprint
Force USA's signature continuous floor contact design keeps the whole base on the slab rather than on four feet, which is what stops the frame rocking when you rack a heavy bar.
Footprint is 198.1cm wide by 153.7cm deep, and it needs 254cm of ceiling for a full pull-up.
It expands too — jammer arms, leg press and further attachments all bolt to the same frame.
The G4 CORNERSTONE is the entry point into the Force USA All-In-One range and the best-value way to get a rack, Smith machine and functional trainer into a home gym. Everything you need for a full-body programme sits inside a single frame just under two metres wide.
Dimensions
Exterior: 198.1cm W x 153.7cm D x 221cm H
Interior: 102.9cm W x 125.7cm D x 200.7cm H
Minimum ceiling height for a full pull-up: 254cm
Delivery & assembly: bulky freight item at 431kg — delivered kerbside. Assembly is not included; allow a day and a second set of hands.
This item is too large for standard courier and ships by truck freight. Delivery is charged separately and is not covered by our free shipping over $70.
Need help putting this together? Get in touch with us — Contact us
| Usage | Home gym |
|---|---|
| Stations | Power rack, Smith machine, dual-column functional trainer, chin-up station and landmine |
| Weight stacks | Dual 77kg (170lb) — upgradeable to 100kg (220lb) |
| Pulley ratio | 2:1 (100lb loaded = 50lb resistance) |
| Cables | 6.2mm nylon-coated mil-spec aircraft quality, tested to 907kg (2000lb) |
| Adjustment | 1 inch spacing with over 50 numbered adjustment points |
| Smith machine | Quad-bearing rollers with knurled bar |
| Exterior dimensions | 198.1cm W x 153.7cm D x 221cm H (78in x 60.5in x 87in) |
| Interior dimensions | 102.9cm W x 125.7cm D x 200.7cm H (40.5in x 49.5in x 79in) |
| Minimum ceiling height | 254cm (8ft 4in) for a full pull-up |
| Product weight | 338kg (745lb) |
| Shipping weight | 431kg |
| Expandable with | Jammer arms, leg press and additional attachments |
The G4 comes fully loaded with the base model attachment set, with room to upgrade when you are ready.
Available as upgrades: jammer arms, leg press, and 100kg (220lb) weight stacks.
Not included: weight plates, dumbbells, a bench or a separate Olympic barbell. Photos on this page show the G4 set up with plates, a bench and accessories that are sold separately. The Smith machine bar is part of the frame and is included.
These reviews were written by Force USA customers on the manufacturer's own website about this same model. They are not NZ Muscle reviews and are not included in our store rating.
Good rack, wanted more stack for heavy cable work
Three stars is fair. The G4 is a genuinely well-engineered piece of equipment and I do not regret buying it. The power rack side is excellent, the Smith machine is smooth, and the build quality is obvious the moment it is assembled. My only real frustration is as a heavier lifter doing serious cable volume, I hit the top of the 170lb stacks on seated rows and pull-throughs faster than I expected. The upgrade to 220lb per side is available and I am planning it, but I wish I had factored that cost into my initial budget. Intermediate lifters will not hit this issue.
Nothing moves that should not
I have been lifting competitively for nine years and have had cables snap on cheap equipment. That experience makes you nervous about anything that is not built to a serious standard. The G4 cables rated to 2,000lb put that anxiety to rest immediately. The continuous floor contact design means the whole frame sits solid under heavy load, with no wobble and no creaking.
Five machines, one corner
I spent two years trying to build a functional home gym by buying individual pieces. A rack here, a cable tower there, a Smith machine I could not fit through my garage door. I got rid of all of it when I bought the G4. Power rack, Smith machine, functional trainer, landmine and chin-up in one frame and one footprint. My garage went from a maze of equipment to an actual gym with room to move.
The numbered adjustment points are a genuine upgrade
I did not think much about the numbered adjustment points when I was buying, I assumed it was marketing filler. Three months in, I have adjusted the J-hooks and cable arms hundreds of times and every single time it is one quick glance, one pin pull, done. No guessing which hole, no miscounting from the top. It is a small thing but it compounds into a better training experience every day.
I stopped going to the gym the week it arrived
I was sceptical anything could replace my commercial gym access. The G4 proved me wrong by the end of the first session. The dual 170lb stacks deliver smooth, consistent resistance, and the Smith machine on quad-bearing rollers does not bind or drag. Having the power rack, cable system, landmine and chin-up station all in one place means I am not walking between machines any more, I am just training.
Pretty good
There is a lot that is great about this gym. My son and I put it together in one day and we were excited to use it. Everything is great except the cable stacks. They are not heavy enough to do lat pulldowns or rows.
The best
I have been training continuously for 16 years and am certainly not a novice. The G4 has exceeded my expectations and has allowed me to get a complete workout in my home gym. It is a really well-made piece of equipment and allows me to do absolutely everything.
Super solid
Fantastic functional trainer, every part is super solid and it was relatively straightforward to put together. I would highly recommend this for anyone looking to up their garage gym game.
Everything you need in one machine
I did a lot of research before buying an all-in-one home gym, and the G4 was the clear winner. The price is hard to beat for a machine that includes a Smith machine, functional trainer and power rack all in one footprint. Build quality is solid and it feels commercial grade. The pulley system is smooth, which makes cable work actually enjoyable.
Solid and great value
Not many other competitors are offering the features of this machine at this price point. Having the weight stack made my workouts super efficient, and I did not have to worry about balancing weights on each side of the horns on a plate loaded cable system. Took about six hours to put together. The instructions could certainly be better and there were a few errors, but a bit of common sense and you will work it out.
