Roc Foldable 4 Post Cage Builder (3" x 3", ⅝" Holes)
Slim folding power rack for lifters with serious space constraints.
Build Your Rack
Customize your Rack
- 108"
- 90"
- 84"
- 72"
- 43" Depth
- 30" Depth
- 24" Depth
Rack Safeties
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Spotter Arms
Spotter Arms Rack Attachment
You may be more than a pretty face, but dropping a loaded barbell while benching certainly won’t improve things.Stay safe while benching or squatting with the heavy-duty Spotter Arms Attachment! Or use them as a secondary squat/bench station for barbell supersets! UHMW lining protects your barbell from damage, while the Manticore version boasts extra UHMW to keep your rack uprights in tip-top shape.60mm version: compatible with our 60mm racks and non-B.o.S. 2.3" x 2.3" racks with 5/8" holes.Hydra version: compatible with our Hydra racks and non-B.o.S. racks with true 3" x 3" uprights with 5/8" holes.
Manticore version: compatible with our Manticore racks and non-B.o.S. racks with true 3" x 3" uprights with 1" holes.$149.99+ ADD -
43" Pin Pipe Safeties
Pin Pipe Safeties
Don't compromise on safety when it comes to your training. These Pin Pipe Safeties offer unparalleled protection and peace of mind at a reasonable cost.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$94.99+ ADD -
30" Pin Pipe Safeties
Pin Pipe Safeties
Don't compromise on safety when it comes to your training. These Pin Pipe Safeties offer unparalleled protection and peace of mind at a reasonable cost.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$64.99+ ADD -
24" Pin Pipe Safeties
Pin Pipe Safeties
Don't compromise on safety when it comes to your training. These Pin Pipe Safeties offer unparalleled protection and peace of mind at a reasonable cost.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$34.99+ ADD -
43" Flip-down Safeties
Flip-Down Safeties
Don't compromise on safety when it comes to your training.
These Flip Down Safeties offer the confidence and reliability of a spotter without the weird-feeling personal space invasion.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$189.99+ ADD -
30" Flip-down Safeties
Flip-Down Safeties
Don't compromise on safety when it comes to your training.
These Flip Down Safeties offer the confidence and reliability of a spotter without the weird-feeling personal space invasion.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$169.99+ ADD -
43" Strap SafetiesBlack
Safety Straps for Hydra & Manticore Racks
Don't compromise on safety when it comes to your training. Safety Straps offer unparalleled protection and peace of mind, gently catching a loaded barbell without sacrificing security.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$49.99+ ADD -
30" Strap SafetiesBlack
Safety Straps for Hydra & Manticore Racks
Don't compromise on safety when it comes to your training. Safety Straps offer unparalleled protection and peace of mind, gently catching a loaded barbell without sacrificing security.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$45.99+ ADD -
24" Strap SafetiesBlack
Safety Straps for Hydra & Manticore Racks
Don't compromise on safety when it comes to your training. Safety Straps offer unparalleled protection and peace of mind, gently catching a loaded barbell without sacrificing security.
Select the safeties that correspond with the depth and hole sizing of your power rack.
$42.99+ ADD
J-Cups
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Hydra J-Cups
Standard J-Cups
These tried-and-true J-Cups have UHMW protection on all sides to keep your bar evenly distributed and secure while withstanding enthusiastic re-rackings. They're more basic than pumpkin spice season, but they do the trick.
60mm version: Fits our 60mm racks + cable towers & non-B.o.S. 60mm x 60mm racks with 5/8" holes. UHMW triple-padding protects your bar & features a 700lb combined capacity.
Hydra version: Fits our Hydra racks & non-B.o.S. true 3" x 3" racks with 5/8" holes. UHMW triple-padding protects your bar & features a 1,000lb combined capacity.
Manticore version: Fits our Manticore racks & non-B.o.S. true 3" x 3" racks with 1" holes. UHMW triple-padding protects your bar & features a 1,000lb combined capacity. Includes quick-locking mag pins and additional UHMW inside to protect your rack.
IMPORTANT: Choose the correct J-Cup version for the uprights and hole size on your power rack. Sold in pairs.
$69.99+ ADD -
Roller J-Cups
Roller J-Cups
Our innovative Roller J-Cups make solo benching a dream. Hefty build with durable nylon rollers to protect your barbell while making adjustments smoother than Usher on roller skates. For all the bench press lovers out there, this is a must.
60mm version: Fits our 60mm racks + cable towers & non-B.o.S. 60mm x 60mm racks with 5/8" holes. Includes durable nylon rollers & features a 600lb combined capacity.
Hydra version: Fits our Hydra racks & non-B.o.S. true 3" x 3" racks with 5/8" holes. The durable nylon rollers & UHMW double-padding protect your bar. Features an 1,000lb combined capacity.
Manticore version: Fits our Manticore racks & non-B.o.S. true 3" x 3" racks with 1" holes. The durable nylon rollers & UHMW double-padding protect your bar. Features a 1,000lb combined capacity. Includes quick-locking mag pins and additional UHMW inside to protect your rack.
$99.99+ ADD -
Sawndwich J-Cups
Sandwich J-Cups
The robust Sandwich J-cups are heavy-duty and a serious plus when using a safety squat bar. The beefy sandwich design, abrasion-resistant lining, and sloped backing protect your bar and you while re-racking.
60mm version: Fits our 60mm racks + cable towers & non-B.o.S. 60mm x 60mm racks with 5/8" holes. Thick HDPE padding protects your bar & features an 880lb combined capacity.
Hydra version: Fits our Hydra racks & non-B.o.S. true 3" x 3" racks with 5/8" holes. Thick HDPE padding protects your bar & features a 1,000lb combined capacity.
Manticore version: Fits our Manticore racks & non-B.o.S. true 3" x 3" racks with 1" holes. Thick HDPE padding protects your bar & features a 1,000lb combined capacity. Includes quick-locking mag pins and additional HDPE inside to protect your rack.
$99.99+ ADD -
Monolift Rack Attachment
Monolift Rack Attachment
The adjustable Monolift Attachment offers a space-saving and inexpensive monolift solution.
UHMW plastic lined to preserve your barbell during enthusiastic re-rackings, with nylon rollers on the Hydra version for easier bar adjustments.
Easy to set up and adjust-just place the pin and drop it in. Perfect for solo handoffs, so you can save every bit of energy to hit that next PR.
IMPORTANT: Our Monolift Arms ONLY fit upright tubing dimensions of 2.3" x 2.3" (60mm x 60mm) with 5/8" holes. Check out the Hydra Monolift for TRUE 3" x 3" uprights with 5/8" holes.
Download Monolift Rack Attachment - 2.3" x 2.3" (5/8" Holes) - Pair Product Manual
$239.99+ ADD
Additional Options and Accessories
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Single 24mm Wrench
Hydra Hardware
Simplify the Hydra Power Rack assembly process with this ultra-convenient hardware kit.
The 24mm wrench fits all bolts used in the Hydra line-up, concrete anchor bolts (set of 8) and the rack attachment pins keep your rig secure, and the B.o.S logo plate promises a PR in pizzazz.
Hardware fits true 3″ x 3″ tubing with 5/8″ holes
Download Hydra BOS Logo Tag with Assembly Instructions Product Manual
$19.99+ ADD -
Rack Attachment Pin
Hydra Hardware
Simplify the Hydra Power Rack assembly process with this ultra-convenient hardware kit.
The 24mm wrench fits all bolts used in the Hydra line-up, concrete anchor bolts (set of 8) and the rack attachment pins keep your rig secure, and the B.o.S logo plate promises a PR in pizzazz.
Hardware fits true 3″ x 3″ tubing with 5/8″ holes
Download Hydra BOS Logo Tag with Assembly Instructions Product Manual
$19.99+ ADD -
Concrete Anchors - Set of 8
Hydra Hardware
Simplify the Hydra Power Rack assembly process with this ultra-convenient hardware kit.
The 24mm wrench fits all bolts used in the Hydra line-up, concrete anchor bolts (set of 8) and the rack attachment pins keep your rig secure, and the B.o.S logo plate promises a PR in pizzazz.
Hardware fits true 3″ x 3″ tubing with 5/8″ holes
Download Hydra BOS Logo Tag with Assembly Instructions Product Manual
$24.99+ ADD -
Extra Logo Plate
Hydra Hardware
Simplify the Hydra Power Rack assembly process with this ultra-convenient hardware kit.
The 24mm wrench fits all bolts used in the Hydra line-up, concrete anchor bolts (set of 8) and the rack attachment pins keep your rig secure, and the B.o.S logo plate promises a PR in pizzazz.
Hardware fits true 3″ x 3″ tubing with 5/8″ holes
Download Hydra BOS Logo Tag with Assembly Instructions Product Manual
$29.99+ ADD
Rack Attachments
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Band Pegs with Carabiners
Band Pegs with Carabiners
Band Pegs are designed to help strengthen those sticking points and blast through plateaus. Use bands to add resistance to squats, rack pulls, benching, and more. The carabiners offer extra security if you have nightmares about bands coming unhooked and slapping you silly. Select the band pegs that match your power rack specs. Sold in pairs.$29.99+ ADD -
Standard Band Pegs
Standard Band Pegs
Band Pegs are classic band pegs to help strengthen those sticking points and blast through plateaus.
Use bands to add resistance to squats, rack pulls, benching, and more. Select the band pegs that match your power rack specs. Sold in pairs.
$39.99+ ADD -
Adjustable Straight Pull-up Bar
Adjustable Pull-up Bar Rack Attachment
The world is your oyster with this handy-dandy rack attachment. Use it as a second pull-up bar on your power rack or add it to a pair of lever arms to unlock barbell and machine-inspired exercises at home — hip thrusts, thrusters, rows, deadlifts, you name it! The beefy 6-gauge steel promises solid construction while the different finishes & knurling offer plenty of variety. With a max capacity of 500lbs, these adjustable pull-up bars are meant to withstand heavy weights. Choose the option that suits your power rack or cable tower. Hardware included.
2.3"x2.3" bare steel: Fits our 2.3" racks & Cable Towers, 1.25" diameter, bare steel finish & includes hitch pins
2.3"x2.3" knurled stainless: Fits our 2.3" racks & Cable Towers, 1" diameter, stainless steel finish, moderate knurling & includes hitch pins
Hydra powder coated: Fits our Hydra racks, 1.25" diameter, light textured black powder coat finish & includes hitch pins
Manticore powder coated: Fits our Manticore racks, 1.25" diameter, light textured black powder coat finish, includes quick-locking mag pins & UHMW lining inside to protect your rack
IMPORTANT: Both 2.3" pull-up bars are NOT compatible with our Strongman Yoke, as its uprights are slightly too wide to accommodate them.
$64.99+ ADD -
Landmine Attachment
Landmine Rack Attachment
Add versatility to your strength training routine with the Landmine attachment! Choose the version that corresponds with your power rack tubing & hole size.
The Standard version fits any rack with 5/8" holes (including our 60mm & Hydra racks) provided the tubing length or width is no greater than 3". It boasts a beefy 315lb capacity with a UHMW-lined sleeve to protect your favorite Olympic barbell as you squat, press, row, Viking Press, and twist to target different muscle groups for an explosive workout.
The Manticore version fits our Manticore racks & non-Bells of Steel racks with 1″ holes and width or length no greater than 3″. Boasting a beefy 315lb capacity, it rotates in two axes instead of one for smoother landmine workouts and locks into your rack more securely using a mag pin with UHMW protection for your rack. The inner UHMW sleeve protects your barbell and the locking pin keeps it secure so your heavy training session doesn't blow up in your face.Download Racks with 5/8" Holes - Hydra (3" x 3") and 2.3" x 2.3" Racks Product Manual
Download Manticore (3" x 3"; 1" Holes) Product Manual$74.99+ ADD -
Front Foot Stabilizer
Front Foot Stabilizers
These Front Foot Stabilizers add extra support and balance to your TRUE 3" x 3" power rack.
Can also store one barbell on each foot in a PVC-lined hole. Hardware included.
Choose the Front Foot Stabilizers that correspond with your Power Rack model.
$99.99+ ADD -