MECO Omaha Heavy Duty Double-Sided Cantilever Rack Add-On Kit 12' – 1,000 lb per Arm | ADU12

MECO Omaha ADU12 Heavy Duty Double-Sided Cantilever Rack Add-On Kit — 12' Tall, 48" Arms, 1,000 lb per Arm

Who it's for: Anyone with a MECO SDU12 starter unit who wants to extend the row. The ADU12 adds one more bay of 12' double-sided storage using a single shared upright, for deep or wide long loads such as lumber bundles, sheet goods and bundled pipe.

Best for: extending an existing SDU12 row one bay at a time at a lower cost per bay than another starter.
Not the best fit for: a first bay. An add-on needs a starter unit to attach to, so start with the SDU12.

Need a starter unit first? View the matching SDU12 Heavy Duty Double-Sided Cantilever Rack Starter Kit →

The ADU12 is the Series 4000 Standard Heavy Duty add-on kit designed to extend your SDU12 starter unit into a continuous row system. Where a starter unit requires 2 uprights to form a single bay, each add-on unit adds a full bay using only 1 shared upright — eliminating redundant framing, reducing cost per bay, and maximizing your floor footprint.

Ships complete with 1 upright, 16 straight arms, and a brace set — everything needed to attach directly to an existing SDU12 bay. Arms adjust on 3" centers the full height of the upright.

What's Included

• 1 upright (12' height, 106" base length)
• 16 straight arms (48" length, 1,000 lb capacity each)
• 1 brace set (72" brace set)
• All hardware for assembly

Why expand with the ADU12

Lower cost per bay than a second starter — Add-on units share one upright with the adjacent bay instead of requiring two. You get the same storage bay at a fraction of the full starter price.

Same arm capacity, same system — The ADU12 uses identical Series 4000 arms and hardware as the SDU12. No compatibility concerns, no mixed components — everything integrates directly.

Build as long as you need — Chain multiple ADU12 units together to create a continuous row of any length. Each unit adds one full bay of storage at 12' tall with 48" arms.

Forklift accessible — Open base design allows loading and unloading directly from the aisle, same as the starter unit.

Not sure which rack you need? Read our cantilever rack buying guide for help with arm length, capacity, upright spacing and height.

Questions before ordering? Call (929) 577-4339 or email support@mywarehouseworld.com.

Floor Anchors (Required, Not Included): The add-on upright must be anchored to the floor before use. MECO recommends a minimum of 2 anchors per base — 1 in the front and 1 in the back on opposite sides of the base. Each base has holes for up to 4 anchors. Recommended anchor spec: ½" × 4¼". Anchors are not sold by MECO and can be bought locally or provided by us at additional cost. Building codes vary by location — consult local codes for specific requirements.

Series 4000 Standard Heavy Duty Double-sided Add-On Units — Model Comparison

Arm capacity is set by arm length. Upright capacity is lower on taller uprights and with longer arms, so check the upright rating for the height and arm length you choose. All capacities are per MECO Omaha specifications based on evenly distributed loads.

Need single-sided storage? See the AU8, AU10, AU12 single-sided add-on units.

Specifications

Important: Capacities are based on evenly distributed loads. Unit must be anchored to the floor per assembly instructions. Add-on units must only be used with a compatible SDU12 starter unit.

FAQ

What does the ADU12 attach to?

The ADU12 attaches to a MECO SDU12 starter unit, or to another ADU12, and shares one upright with the bay next to it. It must only be used with a compatible SDU12 starter.

What comes with the ADU12?

1 upright (12' height, 106" base length), 16 straight arms (48" long, 1,000 lb capacity each), a 72" brace set brace set and all assembly hardware.

How much weight can each ADU12 arm hold?

Each arm is rated for 1,000 lb with the load evenly distributed, per MECO Omaha's published ratings.

Do I need a starter unit before buying the ADU12?

Yes. Every row begins with one SDU12 starter unit, which has 2 uprights. Each ADU12 then adds one bay using a single upright.

How many ADU12 add-ons can I connect?

There is no set limit. Chain as many ADU12 units as your space allows to build a continuous row.

Does the ADU12 need to be anchored to the floor?

Yes. The add-on upright must be anchored before use, with at least 2 anchors per base. The recommended anchor is ½" × 4¼". Anchors are not included. You can buy them locally, or we can provide them at additional cost.

Can the arms be moved?

Yes. Arms adjust up and down on 3" centers, so you can set the spacing to fit your material.

Does it come assembled?

No. The ADU12 ships as components with all the hardware needed to assemble it on site.

Can I get arm lips?

Yes. Bolt-on 2" arm lips are available for this model. Contact us to order with lips. Other options are listed on the Customization & Accessories tab.

How is the ADU12 delivered?

It ships by freight truck from MECO Omaha in Omaha, NE, as curbside delivery. The unit weighs 889 lb, so have a forklift or pallet jack ready to unload, or ask us to add liftgate delivery to your freight quote. You can also use your own freight carrier at no extra cost.

Is My Warehouse World an authorized MECO Omaha dealer?

Yes. We're an authorized dealer for MECO Omaha, and every order is placed directly with MECO and ships from their facility.

Customization & Accessories

Arm Lips

Bolt-on 2" arm lips are available for this model. Lips extend 2" above the arm surface and retain cylindrical loads — pipe, tubing, round bar — that may otherwise roll off the end of the arm. Non-structural; a retention feature only.

To order with arm lips, contact us at support@mywarehouseworld.com or (929) 577-4339.

Additional Customization Options

Contact us to discuss any of the following configurations:

Inclined Arms — For cylindrical loads that tend to roll, inclined arms pitch at 20° (approximately 4.36" per foot) to keep material secure on the rack.

Bolt-On Pipe Sockets — Field-installable pipe sockets (1⅜" inside diameter) provide an additional stop at the end of the arm for round stock and tubing.

Drop-In Deck Support Saddles — Convert to a decked system for storing boxes, cartons, or furniture. Pre-engineered to accommodate 2×4 cross supports.

Custom Colors — Available at additional cost.

To discuss customization options, call (929) 577-4339 or email support@mywarehouseworld.com.

Shipping & Returns

Delivery, Lead Time & Warranty

Shipping Policy

This product ships as industrial freight via motor carrier from Omaha, NE. Need liftgate delivery? Tell us when you request your freight quote and we'll add it.

Freight is calculated based on your location and order size. Contact us before ordering for a freight quote specific to your facility.

Estimated lead times based on total order value:

Lead times are based on total order value and may vary. Contact us to confirm timing before ordering. If you have a delivery deadline or need to hold shipment until your facility is ready, we can coordinate directly with the supplier.

Freight quotes are subject to change without notice. Tracking provided via email once your order ships.

Return Policy

To initiate a return, contact us at support@mywarehouseworld.com or (929) 577-4339 within 30 days of delivery.