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Smith Machine Rack Attachment

4.9
Rated 4.9 out of 5 stars
21 Reviews
$859.99 CAD

Supercharge your strength & size with this ultra-slim rack attachment.

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Product Details

Get every benefit of a Smith machine without buying a 6-foot standalone unit or losing half your garage—this bolts right onto your existing rack.

  • Transforms your rack, not your floor plan → Attaches directly to compatible power racks, adding guided pressing and squatting without requiring a dedicated Smith machine footprint or separate station.
  • Use your preferred barbell → Choose the BYOB (Bring Your Own Bar) version to lift with your own bar for a truly custom approach.
  • Save $1,000+ over standalone units → Full Smith machines run $1,500-3,000 and eat up 6+ feet of floor space—this gives you the same functionality for a fraction of the cost by working with what you already own.
  • Lift solo without the fear → Built-in safety catches every few inches mean you can max out on bench press at 6 AM without a spotter or risking a bar to the chest—just twist and lock.
  • Zero setup between exercises → Go from squats to bench to rows in seconds on the Smith attachment, then swing out to free weight training on your rack, it's like having two stations in one footprint.
  • Smooth, commercial-grade bearings → The linear rail system glides like butter, not like a rusty playground slide,so you can focus on the lift instead of fighting janky movement.
  • Built to last decades → Heavy-duty steel construction handles daily punishment without developing that sketchy wobble or needing replacement parts every year.

Turn your power rack into a two-in-one training station without giving up your car's parking spot.

Why a Smith Machine?

Because sometimes you need to push your limits without pushing your luck:

  • Lift alone, lift safely → The bar locks into place every few inches, so if you fail a rep, you just twist your wrists and walk away—no dramatic rollouts or emergency calls.
  • Build muscle with confidence → When you're not worried about balancing the bar, you can focus 100% on squeezing the muscle and lifting heavier, which means faster gains.
  • Train through injuries or rehab → The fixed path lets you isolate specific muscles while protecting joints, making it perfect for working around shoulder tweaks or knee issues without ditching leg day entirely.
  • Master form before going free → Learn the movement pattern with training wheels on, then graduate to free weights when you're ready—no shame in building a foundation first.

Your home gym shouldn't require a spotter on speed dial or a fear of getting pinned under iron.

Specifications

What's Included

Smith Machine Attachment with Bar Includes:

  • Upper mounting brackets (pair)
  • Lower mounting brackets (pair)
  • Linear bearing rails (pair)
  • 36 lb Smith bar (84" total length)
  • Safety catches
  • All mounting and assembly hardware
  • Installation manual

Smith Machine Attachment BYOB (Bring Your Own Bar) Includes:

  • Upper mounting brackets (pair)
  • Lower mounting brackets (pair)
  • Linear bearing rails (pair)
  • Clamshell bar brackets (pair) for quick bar swaps
  • Safety catches
  • All mounting and assembly hardware
  • Installation manual

Note: The Bar Included version also fits 47" wide racks by placing the included spacers on the inner side of each mounting bracket.

Shipping & Returns

We get it — shipping heavy gym gear raises some important questions. Here’s exactly what to expect:

Flat-Rate Shipping: Most orders ship for much less, but no matter how big your setup gets, you’ll never pay over $199 CAD for shipping in Canada. Some conditions apply for rural or Northern addresses.

Shipping Time: Orders ship within 1–3 business days and usually arrive within 3–7 business days (during sales events, delivery may take up to 2 additional business days).

Fulfilled from our Calgary or Toronto warehouses. Local to either city? Pick up in-store and skip the shipping fees!

Returns: All Bells of Steel products are backed by our 30-day return policy. If you don’t love your order, send it back — simple and stress-free.

Warranty & Guarantees

This Smith Machine Rack Attachment is backed by a Limited Lifetime Warranty, because we build gear that lasts.

We design our attachments to handle years of heavy training. If something goes wrong due to a defect in materials or workmanship, we'll make it right.

Here's what you need to know:

You're covered against manufacturing defects for the lifetime of the product.


What's not covered? Normal wear and tear, cosmetic scratches, damage from improper installation, or using the attachment beyond its 600 lb weight capacity. Also not covered: damage from dropped bars or impact to the linear bearings.

How it works: If you need to make a claim, contact us with your order details and a description of the issue. Our team will review it and get you sorted as quickly as possible.


Assembly Note: We recommend mounting the upper brackets to the top of your uprights and the lower brackets to your crossmembers (inside rack) or front foot stabilizers (outside rack). Brackets can be mounted to uprights only, but a dropped bar could permanently damage the unit.

Questions?Contact our support team — we're here to help.

Product Features

  • Commercial-Feeling Smoothness

    The precision-engineered linear bearings deliver a smooth, consistent bar path that rivals full standalone Smith machines. Once installed, the travel feels stable and controlled—ideal for both strength and accessory work.

  • Broad Range & Cross-Brand Rack Compatibility

    Fits Hydra, Manticore, our 84" Light Commercial racks, and most 2.3"–3" non-BoS racks with 5/8" or 1" holes—no proprietary lock-in required. If your rack is at least 72" tall and 47"–49" wide, this attachment integrates cleanly

  • BYOB Option — Train With Your Barbell

    Choose between a built-in Smith bar or the BYOB (Bring Your Own Barbell) variant, which lets you use your preferred barbell inside the guided Smith track. Keep the knurling, shaft diameter, and feel you trust—without giving up the safety and control of a Smith machine.

  • Space-Saving Smith Machine Performance

    Get full Smith machine functionality without sacrificing an entire corner of your home gym. This attachment delivers the controlled bar path of a commercial unit while keeping your footprint the same.

  • Train Heavy, Train Safely—Even Alone

    The guided bar path increases safety for benching, squats, and pressing when you train without a spotter. Secure J-hook engagement and smooth vertical tracking give beginners and advanced lifters the confidence to push harder.

  • Heavy-Duty Steel Built for Real Training

    Thick-gauge steel, welded guide rod mounts, and reinforced attachment points keep the bar path rigid under heavy loads. Everything is engineered for stability: no wobbling, shifting, or flex even during hard sets.

Product Details

Overview

The Smith Machine Rack Attachment turns your existing rack — Hydra, Manticore, 84" Light Commercial, or most 2.3"–3" racks — into a smooth, guided Smith machine without stealing a single extra inch of floor space. Sneaky, right?

Pick the classic built-in Smith bar, or go BYOB (Bring Your Own Barbell) and run your favorite bar inside the guided rails. You get the safety and consistency of a Smith, plus the familiar feel of the bar you already know and love. More control, more confidence, fewer "please don't let this rep be the one that takes me out" moments.

Recommended Set-Up: Mount the upper brackets to the top of your uprights & the lower brackets to your crossmembers (inside rack) or front foot stabilizers (outside rack). Brackets can be mounted to your uprights only, but a dropped bar could permanently damage the unit.

Who It's For
  • Beginners — Guided bar path builds confidence and reduces risk while learning core movements like squats, bench, and presses.
  • Intermediate Lifters — Train heavy without a spotter, maintain consistent form, and use higher volume safely.
  • Advanced Athletes — Use it for hypertrophy work, accessory lifting, pre-exhaust sets, and high-rep training where stability matters.
  • Small-Space Home Gym Owners — Get full Smith machine functionality without dedicating 4–6 feet of floor space to a standalone machine.
  • Couples / Households with Mixed Experience Levels — The fixed bar path makes lifting safer and more accessible for partners new to strength training.
  • Rack Owners Who Don't Want to Replace Their Setup — Add a Smith machine to your existing rack — no need to buy a new cage or proprietary setup.
Exercises — Lower Body
  • Squats
  • Split squats / Bulgarian split squats
  • Lunges
  • Hack squat variations
  • Calf raises
Exercises — Upper Body
  • Flat bench press
  • Incline bench press
  • Decline press
  • Shoulder press
  • Upright rows
Exercises — Back & Accessory Work
  • Smith machine rows
  • Hip hinges / RDL variations
  • Shrugs
Exercises — Core
  • Smith machine ab roll variations
  • Kneeling Smith machine core drags
Compatibility — Bells of Steel Racks

The Bar Included version also fits 47" wide racks by placing the spacers on the inner side of each mounting bracket — watch this video for more compatibility details.

Hydra & Manticore – 4-Post Racks

  • Heights: 72" (outside uprights only), 84", 90", 108"
  • Widths: 47" or 49"

Hydra & Manticore – 6-Post Racks

  • Heights: 72" (outside uprights only), 84", 90", 108"
  • Widths: 47" or 49"

Hydra Flat-Foot / 4-Post / Squat Stand

  • Heights: 72", 84", 90", 108"
  • Width: 49"
  • Mounts at a slight angle by default
  • For straight-up-and-down travel, an extra-long bolt kit and additional bushings are required
  • The 56" Hydra Flat Foot requires the Conversion Kit for vertical travel

Hydra / Manticore Folding 4-Post Racks

  • Heights: 72", 84", 90", 108"
  • Widths: 47" (Manticore only) or 49"
  • When installed, the rack cannot fold unless the bar is removed

84" Light Commercial Rack

  • Compatible when mounted on the inside at an angle
  • Requires all upper crossmembers to be lowered by one hole
  • This configuration is not compatible with the Lat Pulldown Attachment
Compatibility — Non-BoS Racks

The Smith Machine Rack Attachment fits most non-BoS power racks with:

  • Tubing between 2.3" × 2.3" and 3" × 3"
  • Rack height 72" or taller
  • Rack width 47" or 49"
  • Side hole size 5/8" or 1"

Installation Note: For the smoothest travel, ensure uprights are level, square, and evenly tightened — especially on non-BoS racks.

Installation Expectations
  • Ships in multiple boxes
  • Typical install time: 60–120 minutes
  • Two people recommended for positioning the guide rods
  • Alignment is straightforward on Hydra/Manticore; may require minor adjustments on non-BoS racks
  • Light lubrication optimizes bearing and rotation smoothness

PRODUCT SPECS

Shipping Details

This product will be shipped in 4 boxes:


1x RAIL-SMTH-HDRMTC-1_4

  • 71" x 10" x 5" / 180 cm x 25 cm x 13 cm
  • 83 lb / 38 kg

1x NUB-SMTH-HDRMTC-2_4

  • 18" x 11" x 4" / 47 cm x 29 cm x 10 cm
  • 35 lb / 16 kg

1x MISC-SMTH-HDRMTC-3_4

  • 11" x 9" x 6" / 28 cm x 22 cm x 15 cm
  • 34 lb / 15 kg

1x BAR-SMTH-HDRMTC-4_4

  • 44" x 11" x 5" / 112 cm x 29 cm x 11 cm
  • 43 lb / 20 kg

You can find the SKU on the front of each box.

Manuals and Assembly

4.9
Rated 4.9 out of 5 stars
Based on 21 reviews
Total 5 star reviews: 19 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
95%would recommend this product
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21 reviews
  • CD
    Chris D.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    Smith machine

    Works great on my ethos rack

    Was this helpful?
    Bells of Steel Canada
    2 days ago

    Thanks for the great review, Chris! We are glad to hear the Smith Machine Attachment is working well with your Ethos rack. Getting smooth performance and solid compatibility is always a win.

    Appreciate you sharing your experience and putting the attachment to work in your setup.

    Yours in strength,

    The B.o.S. Crew. 💪

  • R
    Roman
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    4 days ago
    Product is good, installation instructions could be better

    I was able to mount this on the Standard Commercial Rack. Several of my questions prior to purchase about fitment (including pictures of my current rack set up) went unanswered by BOS support, which was disappointing. So hopefully this review helps others with same rack. I wanted to make sure that the inside of my rack was still useable for regular barbell work - namely squats. I can confirm that there's sufficient space to continue to use the inside of the rack, especially with the monolifts . The top crossmembers do need to be all lowered by one hole, which is very unfortunate and annoying and probably took the longest. Word of advice, don't be lazy like me and do remove all the plates off the rack before removing the top crossmembers - I'll just leave it at that! It seems like those of us with light commercial rack are an afterthought. I am not sure why the instructions state that attachment can ONLY be mounted on an angle in the commercial light rack. I was able to mount it straight. I think it would make sense for customer support to inquire what kind of rack you have before sending out the hardware. In the end I was left with a bunch of massive bolts , nuts, and washers (I am guessing for Manticore racks) - seems like an unnecessary waste. Also neither the video nor the instructions mention the split washers - there's one master diagram that shows them. One, I would say, significant challenge was adding the components onto the rails once the smith upright was mounted…

    Was this helpful?
    Bells of Steel Canada
    2 days ago

    Hi Roman,

    Thank you for taking the time to share such a detailed review and for helping fellow lifters with the Standard Commercial Rack. We really appreciate you walking through your install experience and pointing out the challenges you ran into along the way. Feedback like this is incredibly valuable and we will be passing your notes about the instructions, hardware clarity, and installation order to our team so we can keep improving the setup experience.

    It is great to hear that you were able to mount the Smith Machine Rack Attachment successfully and still keep the inside of your rack usable for barbell work, especially with monolifts in the mix. That is a big win for versatility in a home gym.

    We also hear you on the bar rotation feeling a bit tight compared to commercial gym units. The guide system can feel a little stiff at first, but it typically smooths out with regular use as everything breaks in.

    Thanks again for sharing your insights and practical tips. Reviews like yours genuinely help both our team and the community.

    Yours in strength,

    The B.o.S. Crew. 💪

  • AH
    Andy H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Friggin awesome!!

    I got the BYO bar version and this fitted my non-BOS 75mm x 75mm, 1" hole rack beautifully. The build quality is exceptional. It's EXTREMELY solid and the bearings glide like butter on a hot fry pan. One unusual thing that took me aback was the level and quality of the assembly instructions. I'd got so used to extremely basic, usually Chingrish written, instructions with hard to decipher diagrams that the ones that came with this were truly a breath of fresh air. I'd give this a 9.99995 out of 10. The only thing I "modified" was the little screws used for the bar limit stops. I used slightly longer (about 5mm longer) screws which gave me a little bit more fiddle room with the bar hook.

    Was this helpful?
    Bells of Steel Canada
    2 days ago

    Andy, this is the kind of review that fires us up! Thank you for the epic shout out and for sharing a photo of your setup. That rack looks ready for battle.

    We love hearing that the BYOB version fit your 75 by 75 rack like a glove and that the build quality and stability hit the mark. And those buttery smooth bearings? Music to our ears. The fact that the instructions stood out in a sea of confusing manuals makes our day too. Clear guidance and rock solid gear should always go hand in hand.

    Appreciate you sharing your small tweak on the limit stop screws as well. That kind of hands on insight is what home gym legends are made of.

    9.99995 out of 10? We will take it 😄

    Yours in strength,
    The B.o.S. Crew.

  • FG
    Fabian G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Smith Machine Attachment

    I must admit the quality of the equipment exceeded my expectations. The new attachment has made my workouts that much better and at 55 this is a game changer.

    Was this helpful?
  • E
    Eric
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Kinda fits in Rogue RML-3

    Overall- great quality and no complaints for the price point ( I paid 30% off). Surprised BoS can make money on that. I have an old RML-3 with welded side crossmembers. I had to cut the slot longer in the 4 top brackets, but it's in and works great!

    Was this helpful?
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Frequently Asked Questions

What is the BYOB (Bring Your Own Bar) version of the Smith Machine?

The BYOB version lets you use your own barbell instead of a fixed Smith bar. Your bar sits in clamshell-style trolleys that glide along the guide rails, giving you the same controlled Smith machine movement while using the bar you already own. This allows you to customize the feel, knurling, and starting weight of your setup

What barbell sizes are compatible with the BYOB Smith Machine?

The BYOB system is designed for barbells with a shaft diameter between 25–30 mm. This range covers most standard Olympic barbells used in home and commercial gyms.

Does using my own bar change the starting weight?

Yes. The starting weight depends on the bar you install. For example, if you use a typical 45 lb (20 kg) Olympic barbell, the unloaded starting weight will be significantly heavier than the ~36 lb (16.5 kg) hollow Smith bar option.

Can I switch between BYOB and the Smith bar later?

Yes. Bells of Steel offers conversion kits that allow you to switch between BYOB and the bar-included configuration. This means you can start with one version and change later if your training preferences evolve.

What type of weight plates work with the Smith Machine?

The Smith Machine uses Olympic-style sleeves, which are designed for 2-inch (50 mm) Olympic weight plates.

Is the Smith Machine suitable for a home or garage gym?

Yes. The Bells of Steel Smith Machine is designed for garage gyms and home gym setups that want the safety and stability of a guided bar system. The fixed bar path and built-in safety features allow lifters to train solo with more confidence compared to a traditional free-weight barbell setup.

Does the Smith Machine have safety stops?

Yes. The system includes safety catches that allow you to set a safe stopping point for exercises like squats and bench presses. These safeties help prevent the bar from dropping too low, which is especially helpful when lifting alone.

How does a Smith Machine compare to a standalone bar and power rack?

A Smith Machine guides the bar on rails, which helps stabilize the bar path and reduces the need for balance. A power rack uses a free barbell, requiring more stabilization but allowing natural bar movement. Many lifters use a Smith Machine for controlled accessory work and a rack for traditional barbell lifts.

What racks are compatible with the Bells of Steel Smith Machine?

The Smith Machine is designed to work with many power racks, not just Bells of Steel models. It’s compatible with most racks that meet the following requirements: upright tubing between 2.3" × 2.3" and 3" × 3" (58–76 mm), uprights 72" (183 cm) tall or taller, rack width of 47" or 49" (119–124 cm), and side holes sized for 5/8" or 1" hardware. If you're concerned about compatibiltiy, reach out to our team and we'll help you out.

How much weight can the Smith Machine handle?

The Smith Machine attachment is rated for a maximum capacity of 600 lb (272 kg). Combined with the smooth linear bearings and guided rails, it’s designed to handle heavy compound lifts like squats, presses, and rows with confidence.
The Bells of Steel Smith Machine Rack Attachment is a silver metal power rack with a sturdy safety mechanism and barbell. Ideal for squats and bench presses, it features adjustable safety bars, multiple height adjustments, and enhances workout versatility in strength training.
Bells of Steel

Smith Machine Rack Attachment

From $249.99 CAD
Overview

The Smith Machine Rack Attachment turns your existing rack — Hydra, Manticore, 84" Light Commercial, or most 2.3"–3" racks — into a smooth, guided Smith machine without stealing a single extra inch of floor space. Sneaky, right?

Pick the classic built-in Smith bar, or go BYOB (Bring Your Own Barbell) and run your favorite bar inside the guided rails. You get the safety and consistency of a Smith, plus the familiar feel of the bar you already know and love. More control, more confidence, fewer "please don't let this rep be the one that takes me out" moments.

Recommended Set-Up: Mount the upper brackets to the top of your uprights & the lower brackets to your crossmembers (inside rack) or front foot stabilizers (outside rack). Brackets can be mounted to your uprights only, but a dropped bar could permanently damage the unit.

Who It's For
Exercises — Lower Body
Exercises — Upper Body
Exercises — Back & Accessory Work
Exercises — Core
Compatibility — Bells of Steel Racks

The Bar Included version also fits 47" wide racks by placing the spacers on the inner side of each mounting bracket — watch this video for more compatibility details.

Hydra & Manticore – 4-Post Racks

Hydra & Manticore – 6-Post Racks

Hydra Flat-Foot / 4-Post / Squat Stand

Hydra / Manticore Folding 4-Post Racks

84" Light Commercial Rack

Compatibility — Non-BoS Racks

The Smith Machine Rack Attachment fits most non-BoS power racks with:

Installation Note: For the smoothest travel, ensure uprights are level, square, and evenly tightened — especially on non-BoS racks.

Installation Expectations

Bar Type

  • Bar Included
  • BYOB (Bring Your Own Bar)
  • BYOB to Bar Conversion Kit
  • Bar to BYOB Conversion Kit
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  • $199 MAX SHIPPING

  • PROUDLY CANADIAN SINCE 2010

  • EXCELLENT WARRANTY