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BlackBear Fitness

Bells of Steel · Manticore 3″ × 3″ · 1″ holes

Manticore Four-Post Power Rack – Bells of Steel

A modular four-post rack for squats, bench presses and pull-ups. Choose the dimensions and attachments that suit your space and training.

A solid base for your home gym

Manticore combines a four-post layout with true 3″ × 3″ uprights and 11-gauge steel. Build a focused barbell setup now, with compatible cable, Smith, training and storage options available as your gym grows.

True upright size
3″ × 3″
Steel thickness
11 gauge / 3 mm
Attachment holes
1″ / 25.4 mm
Supplier-stated rack capacity
454 kg / 1,000 lb

Bells of Steel’s stated rack capacity. Individual attachment ratings and installation requirements also apply.

  • Choose three standard upright heights and three internal depths to suit your room. A 108-inch builder-only height is shown for enquiries.
  • Large 1-inch attachment holes and numbered uprights make it straightforward to position compatible Manticore attachments.
  • Use compatible Manticore attachments to add more training and storage options over time.
Build your Manticore rack
Rack specifications
Upright tubing
True 3″ × 3″ / 76.2 × 76.2 mm
Frame steel
11 gauge / 3 mm
Attachment holes
5/8″
Keyhole side slots
Selected compatible 5/8″ side attachments
Finish
Powder coat
What is included in the essential build?

Four uprights, four side crossmembers, your selected front pull-up bar, your selected back piece and one pair of J-cups. The component list below shows the exact items and quantities for your choices.

Safeties, cable systems, Smith attachments and other extras are optional and start unselected. Free-weight barbells, weight plates and benches are sold separately.

Space, fit and setup

Choose 72″, 84″ or 90″ uprights and 24″, 30″ or 43″ internal depth, subject to availability. The supplier’s 108″ height is builder-only; contact us to confirm availability. Allow extra room for footplates, attachments, loading plates and overhead movement. Assemble and anchor the rack following the manufacturer’s instructions.

Use Manticore attachments for true 76.2 × 76.2 mm uprights with 1-inch holes. Only use 5/8-inch fittings in the side keyhole slots where the individual attachment is explicitly compatible. Tubing size alone does not confirm compatibility.

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Bells of Steel reviews

Great Product!

We bought the Manticore over a year ago now, and we've been SO happy with it right from the start! Easy set up, sturdy construction, and great attachments. Great modular design structure....Read full review
We bought the Manticore over a year ago now, and we've been SO happy with it right from the start! Easy set up, sturdy construction, and great attachments. Great modular design structure. And I LOVE the numbers on the holes - it makes getting the J hooks even SO much easier!! We bought the extra tall one for our space, and it was a great idea. Highly recommend.

Great Experience

I’m extremely happy with my Bells of Steel Manticore squat rack. The quality is excellent—it’s a heavy-duty rack that is very well put together, with neat, clean welds and a solid, stable...Read full review
I’m extremely happy with my Bells of Steel Manticore squat rack. The quality is excellent—it’s a heavy-duty rack that is very well put together, with neat, clean welds and a solid, stable feel. It’s versatile for a wide range of exercises, with a large selection of attachments + extra compatibility with other true 3x3 posts. It feels like a rack that is built to last.

The customer service was excellent. I worked with a sales representative while designing and purchasing the rack, and they were very helpful, knowledgeable, and responsive throughout the process. I bought a combo with the lat pulldown attachment and wanted to minimize the overall footprint. I also had specific limitation with ceiling height. We worked together to design the most efficient solution. Having someone available to answer questions and help with the design made the whole experience much easier.

Shipping and delivery were generally great as well. I received the full pallet within a week, and everything was wrapped and packaged very well. One box was missing from the shipment, but Bells of Steel shipped it out immediately. Most importantly, nothing arrived damaged or scratched.

Overall, I’m very impressed with both the Manticore rack and the buying experience. Great build quality, excellent customer service, and a smooth delivery process. I would definitely recommend it.

Amazing piece of kit!

Watched a lot of reviews and compared different options but settled for manticore from bells of steel. I was a bit apprehensive before it arrived as it’s not a cheap piece of equipment bu...Read full review
Watched a lot of reviews and compared different options but settled for manticore from bells of steel. I was a bit apprehensive before it arrived as it’s not a cheap piece of equipment but I was set on getting solid, good quality rack.

As soon as it arrived and I saw the solid and really well finished uprights, then started to assemble and saw how good everything fitted together I actually thought this is a bargain for the price.

The thing is built like a tank, lat pulldown is smooth as a butter and smith machine is mint. I mean my house insurance halved straight away cause if the roof caves in this beast will not budge.

And it definitely looks the part as well 😍

I honestly don’t think you can get better for the price 💪👊💪

Manticore

George at the Indy showroom built me out a full Manticore rack. He was very professional and accommodating. The rack is bulletproof and the finish is gorgeous. George understood my price ...Read full review
George at the Indy showroom built me out a full Manticore rack. He was very professional and accommodating. The rack is bulletproof and the finish is gorgeous. George understood my price point and future plans so this rack is set up for expansion with very little effort. I will certainly be back and will bring friends.

PS- you cannot beat the magnet pin system. I don’t know if it’s common in rack builders, but it feels so fancy.

Solid

Super solid rack. I have the smith machine attachment and it's awesome. Would recommend.Read full review
Super solid rack. I have the smith machine attachment and it's awesome. Would recommend.

Quality Rack and my 1st BoS purchase.

I've been wanting a rack for years and finally bought this model after lots of window shopping. All the pieces are quality built and once assembled its absolutely solid. Being able to mix...Read full review
I've been wanting a rack for years and finally bought this model after lots of window shopping. All the pieces are quality built and once assembled its absolutely solid. Being able to mix'n'match with other 3x3 racks is nice if you have different pieces already. Built it alone and had no problems. Actually used my bench in it's stored position and a tie-down to hold the post for me . :)

Needing a rack you won't be dissapointed.

Now you guys just need to make a helpline so I can call because I'm hooked on the Company!

Manticore Rack

This is an awesome rack. It is extremely sturdy and can be added onto. I added two more posts to sides of mine for plate storage. It’s the best rack I have ever owned and the accessories ...Read full review
This is an awesome rack. It is extremely sturdy and can be added onto. I added two more posts to sides of mine for plate storage. It’s the best rack I have ever owned and the accessories are strong and affordable.

Solid

First of all, shout out to the Calgary staff for their excellent customer service over the years. Brandon has been awesome since forever but special thanks to Garvin (sp?) and Matt for he...Read full review
First of all, shout out to the Calgary staff for their excellent customer service over the years. Brandon has been awesome since forever but special thanks to Garvin (sp?) and Matt for helping me get sorted after I ran into some issues with upright heights/rack design. They went above and beyond to help me out and I just wanted it known I really appreciate it.

I upgraded from my BoS light commercial to the Manitcore 4 post and this thing is solid.

At first I was hesitant on a 4 post design due to stability concerns as my only experience has been with cheaper lighter racks and I am not interested in bolting anything to my basement floor. The Manticore is heavy duty and solid, this thing weighs a ton and is extremely stable even with the 4 post design. I honestly couldn’t tell a difference between it and the flat foot design in terms of stability. Quality is great, easy to assemble, and the modular design is a cool idea as I can always upgrade to a 6 post in the future by adding a couple more pieces if I want to.

As for design specifics I opted for a crossmember on both the front and back for extra stability and moved the pull up bar to the middle which has been working great.

For reference anyone planning their build I got the 90” upright height, 43” cross member depth, from my understanding the bigger the footprint the more stability, as well I like space inside my rack so I went with the 43” depth as that is what I was used to with my light commercial. My basement height is 96” (unfinished) btw.

Exceeds my high expectations - lifetime purchase without question

I've been waiting for my pre-order for about two months...Over that time I've worried as to whether I would regret the BOS quality relative to a REP or Rogue rack..I wasn't looking to pin...Read full review
I've been waiting for my pre-order for about two months...Over that time I've worried as to whether I would regret the BOS quality relative to a REP or Rogue rack..I wasn't looking to pinch pennies for this buy and was convinced by Gluck reviews that Manticore is legit and a no brainer as a Canadian....having just received all the parts and assembled the finished product, I am absolutely stunned by the quality and therefore value of this rack - especially as a Canadian consumer.

You can surely find more premium attachments like the dip station and landmine attachment from the likes of Rogue, but the rack and safeties along with mag pins leaves absolutely nothing to be desired...completely top-notch...one of the most premium feeling items in my premium home gym.

This is one of those few purchases that I know will be a lifetime purchase. Well done, BOS!!!

Love it

Great rack, great packaging and awesome customer service.Read full review
Great rack, great packaging and awesome customer service.

Beefy

Best price/shipping for us CanadiansRead full review
Best price/shipping for us Canadians

J cups

The rack is extremely sturdy. I am pleased with my purchase. The j cups I received in my opinion have poor looking welds. I wish I could attach a picture.Read full review
The rack is extremely sturdy. I am pleased with my purchase. The j cups I received in my opinion have poor looking welds. I wish I could attach a picture.
EMPTY DOM REMOVE PROTECTOR