PowerBlock Commercial Pro 125 Adjustable Dumbbells (Pair, 12.5 to 125 lb, Stand Included)

PowerBlock Commercial Pro 125 Adjustable Dumbbells

The Commercial Pro 125 is a pair of adjustable dumbbells that runs from 12.5 lbs. to 125 lbs. per hand. It ships with the Pro Max Stand on commercial casters, and PowerBlock rates it for a commercial floor. If your members outgrow it, an expansion kit takes the same pair to 175 lbs. per hand.

One pair replaces 2,205 lbs. of iron. That is the number that should change how you judge the price. Sixteen pairs of fixed dumbbells running 12.5 lbs. to 125 lbs. add up to 2,205 lbs. and need about ten feet of rack. The Commercial Pro 125 does the same job on a floor footprint of 21.5 in. by 25 in.

Who is the Commercial Pro 125 for?

Facilities that need real weight without giving up the floor to a dumbbell rack. Hotel and corporate gyms, apartment fitness rooms, personal training studios, and country clubs. It also suits a serious home lifter whose top set is climbing past 100 lbs. per hand, though you are paying for a commercial build you may not need.

PowerBlock defines a commercial space as any environment used for business or shared use. That is the setting this warranty is written for.

How much weight does it adjust in?

It moves in 7.5 lb. and 10 lb. steps across 16 settings, from 12.5 lbs. up to 125 lbs. per hand. There are no micro weights in the handles on this model, so 7.5 lbs. is the smallest jump you can make.

That is a coarser step than the Pro 100 EXP, which moves in 2.5 lb. and 5 lb. increments. At the top of this range a 7.5 lb. jump is about six percent, so it matters less on heavy pressing than it would on lateral raises.

What is included?

Two dumbbells, a pair of 12.5 lb. handles, a pair of 20 lb. handles, two commercial grade magnetic selector pins, and the Pro Max Stand with commercial casters and protective mats on both shelves. The set arrives on a pallet in several boxes.

Can the Commercial Pro 125 be expanded to 175 lbs.?

Yes. The Commercial Pro 125-175 Expansion Kit adds 50 lbs. per hand and takes the pair to 175 lbs., which is 22 settings instead of 16. You can start at 125 lbs. now and add the weight when your members need it.

The kit fits the Commercial Pro 125 and nothing else. It does not fit the Pro 100 EXP, the Commercial Pro 32, or any Elite set. Add the expansion kit to your order and it ships alongside your dumbbells.

Specifications

Commercial Pro 125 or Commercial Pro 175: which one should you buy?

Buy the Commercial Pro 125 if your heaviest members work under 125 lbs. per hand today. You save $420 up front, and the expansion kit is there when you need it.

Buy the Commercial Pro 175 if you already know people will use the top end. The math is exact: $2,049 for this set plus $420 for the kit is $2,469, which is what the Commercial Pro 175 costs on its own. Buying the 175 outright saves you a second delivery and an afternoon of installation.

What are the limits you should know before ordering?

The Commercial Pro 125 does not take the PowerBlock barbell or kettlebell handle attachments. Those fit the Pro and Elite weight stacks, not this one. If you want a barbell option in the same system, look at the Pro 100 EXP instead.

The dumbbells are ready to use out of the box, but the Pro Max Stand has to be assembled. Plan on two people and about half an hour.

Frequently asked questions

Does the Commercial Pro 125 come with a stand?
Yes. The Pro Max Stand is included, and it rolls on commercial casters. Both shelves have protective mats.

Can it expand past 125 lbs. per hand?
Yes. The Commercial Pro 125-175 Expansion Kit adds 50 lbs. per hand and takes the set to 175 lbs. and 22 settings. Neither the Commercial Pro 32 nor the Commercial Pro 175 expands, so this is the commercial set to buy if you want room to grow.

Are the handles knurled?
No. The Commercial Pro 125 uses a contoured TPR grip, 38 mm across and 4.88 in. long. The knurled stainless steel grip is on the Commercial Pro 175.

Does it have micro weights in the handles?
No. This model uses 12.5 lb. and 20 lb. handles instead, so the smallest jump is 7.5 lbs.

Do PowerBlock barbell or kettlebell attachments fit it?
No. PowerBlock builds no compatible barbell or kettlebell accessories for the Commercial Pro 125 and 175.

How much floor space does it need?
The stand takes about 21.5 in. by 25 in. Leave an arm's length of clear space on both sides so someone can press and curl without hitting a wall.

How does it ship?
On a pallet by freight truck, curbside, at about 295 lbs. The delivery point needs a hard level surface for the pallet jack.

What does the warranty cover?
PowerBlock covers this set with a 1 year commercial limited warranty. It does not cover normal wear, misuse, or dropping the dumbbells.

View all PowerBlock adjustable dumbbells

Overview

Introduction

A pair of commercial rated adjustable dumbbells covering 12.5 to 125 lbs. per hand across 16 settings, with the Pro Max Stand included and room to expand to 175 lbs.

Grade

New / Commercial

Model Number

Commercial Pro 125. PowerBlock part number 750-00312-00. Dealers also list the same set as 505-00123-01 or PRO-125.

Highlights

Highlights

• 16 weight settings per hand: 12.5 to 125 lbs. in 7.5 and 10 lb. steps, with a commercial grade magnetic selector pin.
• Replaces 2,205 lbs. of iron: 16 pairs of fixed dumbbells and about ten feet of rack, in a footprint of 21.5 in. by 25 in.
• Expandable to 175 lbs. per hand: the Commercial Pro 125-175 Expansion Kit adds 50 lbs. per hand when your members need it.
• Rated for a commercial floor: PowerBlock covers it with a 1 year commercial limited warranty, not a home use warranty.
• Pro Max Stand included: commercial casters and protective mats on both shelves, so the pair rolls where you need it.
• Urethane coated steel plates: quieter when the plates settle and easier on a gym floor than bare steel.

Warranty

Shipping & Delivery

Shipping and delivery

Shipping: Usually leaves warehouse in 3 - 5 business days.

Delivery Method: Ships LTL/Freight with Curbside Delivery. Liftgate Service Included (A $75 Value!). Learn more >

Delivery Notes

Ships on a pallet at roughly 295 lbs., so the delivery point needs a hard level surface for the pallet jack.

Dimensions & Weight

Assembled Length

17.2 in

Assembled Width

8.8 in

Assembled Height

9.1 in

Assembled Weight

250.0 lb

Recommended Operating Space

• Each dumbbell measures 17.2 in. long, 8.8 in. wide and 9.1 in. tall at the full 125 lb. setting.
• The pair on the Pro Max Stand takes a floor footprint of about 21.5 in. by 25 in.
• Allow an arm's length of clear space on both sides for pressing and curling.
• The stand rolls on commercial casters, so a hard level floor makes it easy to move between training areas.
• Do not store the set outdoors or anywhere weather, moisture or swinging temperatures reach it. PowerBlock does not warrant units stored that way.

Configuration

Resistance Configuration

12.5 to 125 lbs. per hand in 7.5 and 10 lb. steps, 16 settings. Commercial grade magnetic selector pin. Uses 12.5 lb. and 20 lb. handles, no micro weights. Grip is 38 mm across and 4.88 in. long. Sold as a pair. Expandable to 175 lbs. per hand with the Commercial Pro 125-175 Expansion Kit.

Assembly

Assembly Required

Yes

Installation Notes

• The dumbbells arrive ready to use. Lift a handle out of the stack, move the magnetic pin to the weight you want, and lift.
• The Pro Max Stand needs assembly. Plan on two people and about half an hour.
• Changing a handle from 12.5 lbs. to 20 lbs. takes a few seconds longer than a pin change.

Best Fit

Best For

• Hotel, corporate and apartment gyms that need heavy dumbbells without a heavy dumbbell rack
• Personal training studios serving clients at very different strength levels
• Country clubs, firehouse and first responder gyms
• Any shared floor where a residential warranty would not apply
• Facilities that want a heavy set now and the option to reach 175 lbs. later
• Home lifters whose top working set is approaching 100 lbs. per hand

Not Recommended For

• Lifters who drop dumbbells at the end of a set. PowerBlock sets are not built for dropping, and the selector pin and rails are what break.
• Anyone whose heaviest lift stays under 100 lbs. per hand. A Pro 100 EXP costs far less and gives finer 2.5 lb. jumps.
• Anyone who wants barbell or kettlebell attachments. None are compatible with this stack.
• Anyone who already trains above 125 lbs. per hand. Buy the Commercial Pro 175 instead of paying for the kit later.
• Damp garages, sheds, or any space exposed to weather or swinging temperatures.

What's Included

Included Items

• Two adjustable dumbbells, sold as a pair
• A pair of 12.5 lb. handles
• A pair of 20 lb. handles
• Two commercial grade magnetic selector pins, one per dumbbell
• Pro Max Stand with commercial casters and protective mats on both shelves

Optional Accessories

• Commercial Pro 125-175 Expansion Kit, which adds 50 lbs. per hand and takes the set to 175 lbs.
• PowerBench 2.0 adjustable bench

The Commercial Pro 125 does not accept the PowerBlock barbell or kettlebell handle attachments. Those fit the Pro and Elite weight stacks only.

Documentation

Specs Verified On

August 29, 2026

Shipping & Delivery

Processing time:
Order processing takes 1-3 business days. After that your order is packed and shipped on the timeline listed for that item in the Specs & Logistics section on this page. If anything is delayed, we tell you right away.

Delivery method:
You get a tracking number by email once your order ships.

• Orders under about 100 lbs ship UPS or FedEx ground.
• Larger, heavier or multi-unit orders ship LTL freight with a curbside delivery appointment. Liftgate service is included.

Transit time:
Ground shipments usually arrive within 1-5 business days. Freight orders usually take 3-7 business days.

Curbside means curbside. The driver brings the item to the end of your driveway or the curb and lowers it with a liftgate. Someone needs to be there to receive it, sign for it, and move it from there. Measure your doorways and the path to the room before you order.

Assembly:
Most products arrive unassembled and need some setup. How much varies by product; the Specs & Logistics section on this page lists the requirement for this model.

Cancellations & returns

Cancel any order within 24 hours of payment. After 24 hours most orders can still be cancelled before they ship, with exceptions. Customized or made-to-order products cannot be cancelled or refunded after 24 hours, because production starts for your order.

If it arrives damaged:
Orders ship insured and carry the manufacturer's warranty. Note any damage on the delivery receipt before you sign, then contact us and we repair or replace the item.

Returns:
You have 30 days from delivery, or the manufacturer's return window, whichever applies.

• Item must be unused, unassembled, in original condition and in original packaging.
• You cover return shipping.
• No restocking fees.

Read the full return policy

Not eligible for return or refund:

• Aeromat / Ecowise
• Any built-to-order product

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