Roc Foldable 4 Post Cage Builder (3" x 3", ⅝" Holes)

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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

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

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

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

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

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.

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.

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

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.

The heavy-duty Y Dip Attachment easily mounts to your rack for dips, knee or leg lifts, and more. Perfect for blasting your chest, delts, triceps, and core! You can even get creative and use this for neutral grip pull ups and inverted rows when you're short on space or time.

This rack attachment boasts a black powder coat to prevent rust and UHMW lining to protect your uprights and ensure a snug fit. The UHMW-lined Manticore version can be hung vertically on your upright for storage.

Easily install and adjust the height with a simple drop pin. With a 500lb weight capacity, you can throw on a Dip Belt and some Weight Plates for some extra flair.

Choose the Y Dip Attachment that matches your power rack specs.

IMPORTANT: If your rack is not bolted to the ground or otherwise secured, you must use the Y Dip Attachment on the inside of your rack.
Download Y Dip Bar Rack Attachment - 2.3" x 2.3" Product Manual
Download Y Dip Bar Rack Attachment - Hydra Product Manual

Minimize fatigue, so you can finally push your back muscles to their limit! Maintain your form with chest support, minus the bulky bench. This streamlined rack attachment installs and adjusts quickly and easily, unlocking more than just seal rows-use it for flies, hip thrusts, incline curls, or a comfy chair between sets.

Say goodbye to notoriously rickety and time-consuming set ups (here's looking at you, seal rows and hip thrusts) and hello to a 30 second setup and exceptional muscle targeting.

With 7 adjustable positions, plenty of head room, 2.25" thick pad, and a beefy 500lb capacity, you'll wonder how you ever lived without it.

Select the seal row pad that corresponds with the uprights and hole size of your power rack.
Download Seal Row Pad Rack Attachment - Manticore Product Manual
Download Seal Row Pad Rack Attachment - 2.3" x 2.3" Product Manual
Download Seal Row Pad Rack Attachment - Hydra Product Manual

Raise the bar on your strength training with the last pull-up bar you'll ever need.

Choose from a standard grip, neutral grip, or globe grip to keep things spicy.

Target your back, biceps, forearms, and core, or just hang around to boost your grip strength and decompress your spine after heavy squats.

The Globe Grip Pull Up Bar has an innovative design and rust-resistant black powder coat. With a 500lb weight capacity and sturdy steel construction, this bad boy was built to last.

Choose the size that corresponds with your power rack.

Requires a 43" crossmember or can be mounted on the side of your rack if it has a 43" depth. Hardware included.

Can't picture yourself doing ONLY barbell exercises for the rest of your life? With just one Cable Tower, you can weave hundreds of cable machine exercises into your fitness routine and easily switch from one to another.

Dual Nylon Adjustable Handles (included) on the upright with 33 height settings create... 33, carry the 1...endless possibilities! Throw on some of our best-selling Cable Tower attachments (we recommend the Y Dip, Seal Row Pad, and Landmine) for even more versatility.

For the best rack attachment versatility, select the version that includes the rear upright—this increases its stability and offers additional storage for small items on Utility Hooks. 

Olympic Weight Plate loadable sleeves keep the costs low and the possibilities high, while the 210-pound Weight Stack version is the crème de la crème of convenience.

Also included is the 2-1 Cable Adapter, connecting both cables & upgrading the pull ratio from 2:1 to an incredible 1:1 ratio.

Need a rack & cable combo machine? Check out the All-In-One Trainer or Cable Tower Squat Stands.

IMPORTANT: Due to their small footprint and tall height, Cable Towers MUST be bolted down to ensure the user and equipment’s safety. Mounting hardware is not included — we recommend Tapcon+ screws. Ships unassembled.

Can't picture yourself doing ONLY barbell exercises for the rest of your life? With just one Cable Tower, you can weave hundreds of cable machine exercises into your fitness routine and easily switch from one to another.

Dual Nylon Adjustable Handles (included) on the upright with 33 height settings create... 33, carry the 1...endless possibilities! Throw on some of our best-selling Cable Tower attachments (we recommend the Y Dip, Seal Row Pad, and Landmine) for even more versatility.

For the best rack attachment versatility, select the version that includes the rear upright—this increases its stability and offers additional storage for small items on Utility Hooks. 

Olympic Weight Plate loadable sleeves keep the costs low and the possibilities high, while the 210-pound Weight Stack version is the crème de la crème of convenience.

Also included is the 2-1 Cable Adapter, connecting both cables & upgrading the pull ratio from 2:1 to an incredible 1:1 ratio.

Need a rack & cable combo machine? Check out the All-In-One Trainer or Cable Tower Squat Stands.

IMPORTANT: Due to their small footprint and tall height, Cable Towers MUST be bolted down to ensure the user and equipment’s safety. Mounting hardware is not included — we recommend Tapcon+ screws. Ships unassembled.

The Hydra Nordic Curl Package is an easy-to-set-up & comfortable solution for Nordic hamstring curls.

Includes:

• 1x Pair of Deadlift Pads
• 1x Hydra Split Squat Attachment that fits on our Hydra Racks or non B.o.S. racks with true 3" x 3" tubing with 5/8" holes only.

The Hydra Batwing Customizer mounts to the sides of your power rack to unlock huge storage for weight plates and accessories in a small footprint!

Choose the height of your uprights and the number of cross-members, then add optional accessories for the perfect fit to match your space and training style. The uprights measure true 3" x 3" which is EXACTLY 76.2mm x 76.2mm, instead of the typical 75mm x 75mm uprights of other brands' imported racks.

By matching the same tubing specs as many of our American competitors, you can mix and match attachments freely without needing to stick to one brand - hello, open ecosystem!  Built with modular components, so you can expand later with Hydra components or divide it into two smaller Hydra racks to accommodate a new home gym space or team workouts with your swolemate. Compatible with all Hydra rack attachments.

IMPORTANT: The Hydra series features TRUE 3" x 3" tubing with 5/8" holes, so only Hydra attachments & non-B.o.S. attachments made precisely for 76.2mm x 76.2mm uprights with 1" holes will fit. Not compatible with flat foot Hydra racks.

A compact, money-saving, multi-functional Belt Squat / Lever Arms Rack Attachment, ideal for home gym owners who have a tight space (and wallet). Get the same versatility as our beastly Belt Squat Machine at a fraction of the cost and footprint. All components can also be used as standalone pieces of equipment: 2 Lever Arms, 2 Closed Lever Arm Handles, 2 Plate Pegs and a Dip Belt. The belt shifts the load to the hips during squats, putting zero load on your spine and eliminating upper body engagement so you can train around mobility issues and injuries. Attach this to your power rack for rows, high pulls, presses, Romanian deadlifts, and more.

Choose the Belt Squat / Lever Arms Rack Attachment that corresponds with your power rack measurements.

Economically isolate your quads & hammies to build a nice set of wheels.

The Leg Extension/Curl Rack Attachment offers a machine-like feel and stability without taking up valuable real estate in your home gym. This beefy attachment has a weight plate capacity of 250lbs and a user capacity of 250lbs.

The Leg Extension/Curl unlocks seated leg extensions, so you can blast your quads but don't forget your hammies! They can be isolated one at a time with standing single-leg hamstring curls for some juicy hams worthy of Sunday dinner. Throw on some resistance bands for tension you can cut with a knife (which we do not recommend).

Choose the Leg Extension/Curl Power Rack Attachment that coordinates with your power rack uprights and hole size.

IMPORTANT: Your power rack MUST be bolted down when using the Leg Extension/Curl to ensure user and equipment safety. For maximal stability, use this attachment on the inside of your rack.
Download Manticore (3" x 3"; 1" Holes) Product Manual
Download Hydra (3" x 3"; 5/8" Holes) Product Manual
Download 2.3" x 2.3" (5/8" Holes) Product Manual

Hydra Lever Arms simulate DOZENS of machine exercises in only a fraction of the space & without a jaw-dropping price tag. Add an Adjustable Pull-Up Bar for even more versatility (hip thrusts and leg presses, anyone?)

Height and handle adjustments are simple, so you can find your perfect placement.

These space-efficient attachments (sold in pairs) add only 4.5" to the front of your rack when not in use and tuck nicely inside racks with a minimum 43" depth.

With a 500lb weight capacity and two handle styles to choose from, you're set for life.

Throw on your Olympic weight plates and a set of magnetic collars, and get lifting. Your gainz depend on it.

IMPORTANT: The Hydra Lever Arms are only guaranteed to fit on true 3" x 3" uprights with 5/8" holes. If installed on the exterior of your uprights, your rack MUST be bolted down to avoid tipping and/or injury.
Download Lever Arm Open Handles Only (No Arms) - Manticore (Pair) Product Manual
Download Lever Arm Closed Handles Only (No Arms) - Manticore (Pair) Product Manual
Download Lever Arms Rack Attachment Arms Only (No Handles) - Manticore (Pair) Product Manual
Download Lever Arm Open Handles Only (No Arms) - Hydra (Pair) Product Manual
Download Lever Arm Closed Handles Only (No Arms) - Hydra (Pair) Product Manual
Download Lever Arms Rack Attachment Arms Only (No Handles) - Hydra (Pair) Product Manual

Hydra Lever Arms simulate DOZENS of machine exercises in only a fraction of the space & without a jaw-dropping price tag. Add an Adjustable Pull-Up Bar for even more versatility (hip thrusts and leg presses, anyone?)

Height and handle adjustments are simple, so you can find your perfect placement.

These space-efficient attachments (sold in pairs) add only 4.5" to the front of your rack when not in use and tuck nicely inside racks with a minimum 43" depth.

With a 500lb weight capacity and two handle styles to choose from, you're set for life.

Throw on your Olympic weight plates and a set of magnetic collars, and get lifting. Your gainz depend on it.

IMPORTANT: The Hydra Lever Arms are only guaranteed to fit on true 3" x 3" uprights with 5/8" holes. If installed on the exterior of your uprights, your rack MUST be bolted down to avoid tipping and/or injury.
Download Lever Arm Open Handles Only (No Arms) - Manticore (Pair) Product Manual
Download Lever Arm Closed Handles Only (No Arms) - Manticore (Pair) Product Manual
Download Lever Arms Rack Attachment Arms Only (No Handles) - Manticore (Pair) Product Manual
Download Lever Arm Open Handles Only (No Arms) - Hydra (Pair) Product Manual
Download Lever Arm Closed Handles Only (No Arms) - Hydra (Pair) Product Manual
Download Lever Arms Rack Attachment Arms Only (No Handles) - Hydra (Pair) Product Manual

The Utility Horn easily mounts on your rack for quick access to your Olympic weight plates, bands, or chains-whatever you need handy up to 100lbs. It keeps your stuff off the floor to give you more room to smash your goals.

The cotter pin offers extra security and stability while making it easy to move around until you find the perfect spot, and allows you to fit more onto your rack, taking up only one hole on the upright (compared to bolt-on plate pegs, for example, that use multiple holes to mount). The black powder coating offers rust resistance.

As a bonus, you can use it for a step-up to reach the pull-up bar on a rack that's a bit too tall for you, or to help you do one more set of negative pull-ups. 

Choose the utility horn that corresponds with your rack configurations and hole size.

Ready to set a PR in home gym organization? Save space and get even more use out of your power rack by attaching a Vertical Mount Barbell Holder on the front or back of your uprights.

Two bolts offer easy mounting, while an inner liner protects your barbell.

The black powder coat offers rust resistance, and the 220lb max capacity can handle your barbell, even if you use it as a makeshift coat rack (please don't).

Choose the Vertical Mount Barbell Holder that corresponds with your power rack measurements. Hardware included.

IMPORTANT: If your ceiling is less than 9 feet high, you may find using the Barbell Holder challenging with a standard barbell - please keep this in mind prior to purchasing.
Download Vertical Mount Barbell Holder Rack Attachment - Hydra Product Manual
Download Vertical Mount Barbell Holder Rack Attachment - Manticore Product Manual

Keep your weight plates organized and easy to access with rack-mountable plate pegs.

Get locked and loaded with bolt-on plate pegs (don't worry, these are easy to install and remove as needed). Options range from 5" to 13" loadable sleeves designed to fit Olympic-sized weight plates.

Black powder coat protects your plates while reducing friction for easy loading and unloading. Choose the plate pegs that fit your power rack. 

On average, each 13" Manticore peg can fit eight 45lb Mighty Grip Plates or four 45lb Crumb Bumpers. On average, each 5" Manticore peg can fit the following Mighty Grip Plates: three 25lb plates, five 10lb plates, or five 5lb plates.

IMPORTANT: Sold in pairs. Hardware included.

Download Bolt-On Plate Pegs - Hydra 5" (Pair) Product Manual
Download Bolt-On Plate Pegs - Hydra 13" (Pair) Product Manual

Download Bolt-On Plate Pegs - Manticore 5" (Pair) Product Manual
Download Bolt-On Plate Pegs - Manticore 13" (Pair) Product Manual

Keep your weight plates organized and easy to access with rack-mountable plate pegs.

Get locked and loaded with bolt-on plate pegs (don't worry, these are easy to install and remove as needed). Options range from 5" to 13" loadable sleeves designed to fit Olympic-sized weight plates.

Black powder coat protects your plates while reducing friction for easy loading and unloading. Choose the plate pegs that fit your power rack. 

On average, each 13" Manticore peg can fit eight 45lb Mighty Grip Plates or four 45lb Crumb Bumpers. On average, each 5" Manticore peg can fit the following Mighty Grip Plates: three 25lb plates, five 10lb plates, or five 5lb plates.

IMPORTANT: Sold in pairs. Hardware included.

Download Bolt-On Plate Pegs - Hydra 5" (Pair) Product Manual
Download Bolt-On Plate Pegs - Hydra 13" (Pair) Product Manual

Download Bolt-On Plate Pegs - Manticore 5" (Pair) Product Manual
Download Bolt-On Plate Pegs - Manticore 13" (Pair) Product Manual

Keep your change plates conveniently stored and accessible to bust through your next plateau.

With 8" loadable sleeves, Change Plate Pegs bolt onto your rack uprights for easy access to your Olympic change plates.

Triple pegs for additional storage to keep your fractional plates organized and ready for your next 1lb PR. Trust us-it counts! You can throw resistance bands and other accessories on there, too, if you want; we aren't checking.

Easy installation with two bolts; hardware is included. Select the Change Plate Pegs that correspond with your power rack.

The Manticore version comes with UHMW protection for your uprights, and rubber stoppers to prevent your plates from hitting the mounting bolt heads.

Keep your weight plates organized and easy to access with rack-mountable plate pegs.

These convenient drop-in pegs are adjustable in seconds with sleeves to fit Olympic-sized weight plates.

Black powder coat protects your plates while reducing friction for easy loading and unloading.

Choose the plate pegs that fit your power rack. Sold in pairs.

- 2.3" version: 9" loadable length

- Hydra version: 12.5" loadable length

- Manticore version: 12.5" length

Get 5 pairs of bolt-on plate pegs (3 pairs of 13" pegs & 2 pairs of 5" pegs) to turn your power rack into a weight plate storage mecca.

Black powder coat protects your Olympic-sized weight plates while making them easy to load and unload. We've conveniently bundled them together to save you valuable time clicking (then wasted it by making you read this sentence).

Choose the plate peg set that fits your power rack measurements. Easy installation. Hardware included.

Set a PR in home gym tidiness with the Hydra rack-mountable Hanging Accessory Holder. Steel construction and five prongs keep your bands, chains, and accessories out of the way but within reach. Mount this compact storage solution to your wall or Hydra rack. Bid a not-so-fond farewell to impossibly tangled bands and chaotically misplaced clips. You'll never look like one of those poor, helpless saps who can't do anything right in an infomercial again. Hardware included.

IMPORTANT: Fits racks with true 3" x 3" tubing & 5/8" holes.