Smith Machine Rack Attachment

Name: Smith Machine Rack Attachment
Brand: Bells of Steel
Rating: 4.4 (5 reviews)

Bells of Steel’s Smith Machine Rack Attachment bolts onto an existing power rack to add guided-bar pressing and squatting without taking up any extra floor space, using a ball-bearing linear rail system that reviewers consistently describe as smooth with no lateral play. It mounts on the inside or outside of most racks with 2.3”-3” (58-76mm) square upright tubing, 47”-49” wide and 72”+ tall, either off an upright or a cross member, at an angled or vertical bar path, and works with Bells’ own 36 lb hollow Smith bar or your own barbell via the Bring-Your-Own-Bar (BYOB) kit. It’s rated to 600 lbs and backed by a Limited Lifetime warranty on the frame with 3-year parts coverage. The tradeoffs independent reviewers flag are a spring-loaded safety stop that keeps the lowest bar position around 20.5”, too high for a floor-level deadlift without a step platform, and welds on the safety catches and BYOB trolley that one hands-on reviewer found rougher and thinner than expected for the components they protect.

Assembly	Est. 60-120 minutes, two people recommended
Mounting	Inside or outside of rack, off an upright or a cross member, angled or vertical bar path; adds ~14" to uprights
Warranty	Limited Lifetime on frame; 3-year on parts
Materials	Heavy-duty steel construction with precision linear bearings and commercial-grade ball-bearing rails
Bar options	Bar Included (36 lb hollow Smith bar, 84" length) or Bring-Your-Own-Bar (BYOB, 25-30mm shaft diameter)
Manufacturer	Bells of Steel
Footprint depth	~10-11" when mounted
Shipping weight	~195 lb (88 kg) across 4 boxes
Weight capacity	600 lb (272 kg)
Rack compatibility	2.3" x 2.3" to 3" x 3" (58-76mm) upright tubing, 47"-49" wide, 72"+ tall, 5/8" or 1" side holes

What is a Rack Attachment?

What rack attachments are

Rack attachments bolt or pin onto a power rack or squat stand to expand what it can do — J-cups and safety arms/straps (the essentials), plus dip bars, a landmine, a lat pulldown, weight-plate storage, roller J-cups, and more. They turn a rack into a whole gym.

Compatibility comes first

An attachment must match your rack’s upright size (2x2, 2x3, or 3x3) and hole pattern/hardware (e.g. 5/8-in vs 1-in holes, Westside spacing). Attachments are usually series-specific — a Monster Lite J-cup won’t fit an Echo upright — so confirm the fit before buying.

How it compares

	Smith Machine Rack Attachment	F and F Quick Load Pulley	X-3 Series Quick Release Roller J-Hooks	X-3 Series Safety Straps
GymRadar rating	4.4/5	4.4/5	4.4/5	4.4/5
Price		$39.99	$104.97
Assembly	Est. 60-120 minutes, two people recommended
Mounting	Inside or outside of rack, off an upright or a cross member, angled or vertical bar path; adds ~14" to uprights
Warranty	Limited Lifetime on frame; 3-year on parts
Materials	Heavy-duty steel construction with precision linear bearings and commercial-grade ball-bearing rails
Bar options	Bar Included (36 lb hollow Smith bar, 84" length) or Bring-Your-Own-Bar (BYOB, 25-30mm shaft diameter)
Manufacturer	Bells of Steel	F&F Steel	Titan Fitness
Footprint depth	~10-11" when mounted
Shipping weight	~195 lb (88 kg) across 4 boxes
Weight capacity	600 lb (272 kg)	500 lb
Rack compatibility	2.3" x 2.3" to 3" x 3" (58-76mm) upright tubing, 47"-49" wide, 72"+ tall, 5/8" or 1" side holes

4.4/5 · 5 GymRadar reviews

Reviews by source

Expert	4.4/5	5 reviews
Retailer	4.9/5	23 reviews
Youtube	3.8/5	2 reviews

Bells of Steel’s Smith Machine Rack Attachment turns an existing power rack into a guided Smith machine without adding floor space, using a ball-bearing linear rail system reviewers consistently call smooth with no lateral play. Versatility is the standout: it mounts inside or outside almost any rack with 2.3”-3” square tubing, off an upright or a cross member, angled or vertical, and works with either Bells’ own bar or a BYOB kit for your own barbell. Functionality has a real ceiling for taller lifters and lower-body work – a spring-loaded safety stop keeps the lowest bar position around 20.5”, too high for a floor-level deadlift without a step platform, and overhead clearance tops out near 72”. Build quality is the weakest dimension: alongside praise for the thickness of the mounting hardware, an independent hands-on video review found dangerously thin welds on the two-piece safety catches and rough, unground welds on the barbell trolley that complicate precise BYOB bar-swap assembly – a concern that hasn’t yet been tested over the long term.

+Versatility: mounts inside or outside virtually any rack with 2.3"-3" square tubing (47"-49" wide, 72"+ tall), off an upright or a cross member, angled or vertical, with a choice of Bells' 36 lb bar or your own via the BYOB kit (Bells of Steel; Garage Gym Experiment)
+Functionality: linear bearing rail system is smooth and shows no lateral play even under heavy load (YouTube: Iron Leaf Gym; The Jungle Gym Reviews)
+Value: repeatedly cited as one of the cheapest ways into a Smith machine -- roughly $400 less than competing attachments and a fraction of a $1,500-3,000 standalone Smith machine, while adding only ~14" to the rack's footprint (The Jungle Gym Reviews; Garage Gym Experiment)
+Build quality: mounting plates and vertical supports are thicker and heavier than expected, exceeding the gauge of the reviewer's own Rogue rack hardware (YouTube: Iron Leaf Gym)
+Durability: backed by a Limited Lifetime warranty on the frame and 3-year parts coverage (Bells of Steel)

−Functionality: the spring-loaded stop limits the lowest bar position to ~20.5" and max height to ~72", too high for deadlifts without a step platform and limiting for taller lifters on overhead work (The Jungle Gym Reviews)
−Build quality: an independent hands-on review found dangerously thin welds on the two-piece safety catches and rough, unground welds on the BYOB trolley that make precise bar-swap assembly difficult (YouTube: Iron Leaf Gym)
−Durability: those safety-catch welds raise long-term concern -- the reviewer reports no failures yet, but no independent long-term or load test exists (YouTube: Iron Leaf Gym)
−Versatility: won't fit 2"x2" uprights, so it isn't compatible with every rack despite the "universal" framing (Garage Gym Reviews)
−Value: listed as currently unavailable to purchase directly from the manufacturer, so buying may require waiting for restock (Bells of Steel)