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.

Bar Type
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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.
  • 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

  • BRING YOUR OWN BAR — OR DON’T

    Choose your weapon! Grab the dedicated Smith Bar for an easy, permanent solution for all exercises. Or, pick the BYOB version and throw your barbell into the clamshell brackets. It’s like building your own gaming PC, but for badass grown-ups who lift heavy sh*t.

  • TINY, SPACE-SAVING FOOTPRINT

    No need for a standalone strength machine. This attachment can be mounted inside your rack for massive space savings. Or attach it to the outside, sitting just 10" off your uprights! This saves room for more important things — like perfecting your front double-biceps pose.

  • MAXIMIZE MUSCLE & STRENGTH

    Thanks to its fixed bar path, you won’t waste a single morsel of energy stabilizing the bar, allowing you to lift heavier weights AND build more muscle. Plus, the easy-to-use safety catches let you train to failure safely without a spotter. That’s right! No more calling Mom for help.

  • UNLEASH EXERCISE VARIETY

    From squats to bench presses, and lunges to rows, this rack attachment is like having a whole new gym without leaving your rack. And look at you FINALLY having the confidence to be seen using the Smith Machine! We’ll just totally ignore that it’s from the confines of your home gym.

  • ADJUSTABLE BAR PATH

    Straight or angled? You decide! The guide rods can be set vertically or at a slight angle for your preferred bar path. Whether you want the classic Smith machine feel or something more customized to your frame, it’s like that perfect gym selfie… all about the angles babyyyyy.

  • BUTTERY-SMOOTH REPS

    Bring the commercial gym experience home! This unit boasts the same industrial-grade bearings featured on our leg press machines. And that buttery-smoothness means you can really dig in and push your muscles to their limits.

Product Details


BREAKING NEWS: the stigma against Smith machines is over! This Smith Machine Rack Attachment will supercharge your size & strength in an ultra-compact footprint. Now, if only mullets would come back in style…

This widely compatible unit upgrades your 3” x 3” power rack into a beloved bodybuilding beast without the hefty price tag or space requirements.

Bring your own 25-30mm diameter barbell (BYOB) for a higher starting weight and to optimize the attachment for your next training cycle. Or, snag the hollow 36lb Smith bar for an easier assembly & one-and-done solution for all exercises. With a 600-pound total weight capacity, it’s ready for your heaviest ambitions.

Mount this rack attachment on the inside of your rack without taking up any additional footprint in your gym, or attach it to the outside — sitting just 10" off your uprights! Change between a straight or angled bar path with a few simple adjustments to the mounting brackets, making its fixed path feel as natural as possible for your body.

Hit all the staple lifts: squats, presses, rows, and Bulgarian split squats (why are they ALWAYS here?!). But that’s just the start. Incorporate heavy negatives on compounds. Isolate individual muscles with JM presses. You can even rehab stubborn aches in your posterior chain with single-leg Romanian deadlifts.

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.


Bells of Steel Compatibility Chart

The Smith Machine Attachment is compatible with the following Hydra & Manticore 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.

Rack Type
BYOB & Bar Included
4 Post

Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
Width:
- 47" & 49"

6 Post Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
Width:
- 47" & 49"
Flat Foot 4 Post / Squat Stand

Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
Width: 
- 49" only
*Only mounts on an angle. If you want to mount straight up & down, it requires an extra-long set of bolts and additional bushings — available for purchase soon.
**If you have a 56" Hydra Flat Foot, it can only be mounted straight up & down, and requires the Conversion Kit.

Folding 4 Post Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
- Width:
- 47" (Manticore only) & 49"
*When mounted, your rack can't fold unless the bar is removed.
84" Light Commercial Rack Compatible when placed on the inside at an angle, but requires all upper crossmembers to be lowered one hole & results in the Lat Pulldown Attachment being incompatible.


Non-BoS Rack Compatibility: The Smith attaches to most non-BoS power racks with the following:
- Tubing between 2.3" x 2.3" and 3" x 3"
- 72" or taller uprights
- 47" or 49" width
- 5/8" or 1" side holes

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.


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
Slide 1 selected
21 reviews
  • CD
    Chris D.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 hours ago
    Smith machine

    Works great on my ethos rack

    Bells of Steel Canada
    3 minutes 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
    Yesterday
    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…

    Bells of Steel Canada
    4 hours 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.

    Bells of Steel Canada
    44 minutes 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.

  • 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!

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

BREAKING NEWS: the stigma against Smith machines is over! This Smith Machine Rack Attachment will supercharge your size & strength in an ultra-compact footprint. Now, if only mullets would come back in style…

This widely compatible unit upgrades your 3” x 3” power rack into a beloved bodybuilding beast without the hefty price tag or space requirements.

Bring your own 25-30mm diameter barbell (BYOB) for a higher starting weight and to optimize the attachment for your next training cycle. Or, snag the hollow 36lb Smith bar for an easier assembly & one-and-done solution for all exercises. With a 600-pound total weight capacity, it’s ready for your heaviest ambitions.

Mount this rack attachment on the inside of your rack without taking up any additional footprint in your gym, or attach it to the outside — sitting just 10" off your uprights! Change between a straight or angled bar path with a few simple adjustments to the mounting brackets, making its fixed path feel as natural as possible for your body.

Hit all the staple lifts: squats, presses, rows, and Bulgarian split squats (why are they ALWAYS here?!). But that’s just the start. Incorporate heavy negatives on compounds. Isolate individual muscles with JM presses. You can even rehab stubborn aches in your posterior chain with single-leg Romanian deadlifts.

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.


Bells of Steel Compatibility Chart

The Smith Machine Attachment is compatible with the following Hydra & Manticore 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.

Rack Type
BYOB & Bar Included
4 Post

Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
Width:
- 47" & 49"

6 Post Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
Width:
- 47" & 49"
Flat Foot 4 Post / Squat Stand

Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
Width: 
- 49" only
*Only mounts on an angle. If you want to mount straight up & down, it requires an extra-long set of bolts and additional bushings — available for purchase soon.
**If you have a 56" Hydra Flat Foot, it can only be mounted straight up & down, and requires the Conversion Kit.

Folding 4 Post Height:
- 72" (outside rack on uprights only), 84", 90" & 108"
- Width:
- 47" (Manticore only) & 49"
*When mounted, your rack can't fold unless the bar is removed.
84" Light Commercial Rack Compatible when placed on the inside at an angle, but requires all upper crossmembers to be lowered one hole & results in the Lat Pulldown Attachment being incompatible.


Non-BoS Rack Compatibility: The Smith attaches to most non-BoS power racks with the following:
- Tubing between 2.3" x 2.3" and 3" x 3"
- 72" or taller uprights
- 47" or 49" width
- 5/8" or 1" side holes

Bar Type

  • Bar Included
  • BYOB (Bring Your Own Bar)
  • BYOB to Bar Conversion Kit
  • Bar to BYOB Conversion Kit
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