Gillis Jarke
Gillis Jarke Steeltree 08 Single-Sided Cantilever Rack Add-On Unit – Medium Duty
Gillis Jarke Steeltree 08 Single-Sided Cantilever Rack Add-On Unit – Medium Duty
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Single-Sided Cantilever Rack Add-On Unit — Medium Duty, 7' to 10' High, 18" to 36" Arms, Up to 870 lb per Arm | Gillis Jarke Steeltree 08
Who it's for: Shops, yards and warehouses that already have a Gillis Jarke Steeltree 08 single-sided run and want to add a bay. This add-on shares a column with the unit it attaches to and adds 4 to 6 arms rated 430 lb to 870 lb each, depending on model (MS-7AJ-MCM, MS-8AJ, MS-10AJ).
Best for: lengthening an existing Steeltree 08 single-sided run, lumber, pipe, conduit, tubing and light bar stock, and adding bays for less than a second starter unit.
Not the best fit for: a first or stand-alone bay. An add-on must attach to a unit of the same height, so start with the Steeltree 08 single-sided starter. Heavier loads? See Steeltree 25 heavy duty.
What makes it different
- Medium Duty arms: rated 870 lb per 18" arm, 650 lb per 24" arm, 430 lb per 36" arm.
- Open front: no uprights block the front of each level, so long loads go on and come off by forklift or by hand.
- Adjustable and expandable: arms adjust on 3" centers, and add-on units of the same height share a column to lengthen the run.
Key specs at a glance: Heights 7', 8', 10' | Arms 18", 24", 36" | Up to 870 lb per arm | Unit capacity up to 3,480 lb | Arm adjustment 3"
The Gillis Jarke Steeltree 08 single-sided cantilever rack add-on unit lengthens an existing Steeltree 08 single-sided run by one bay. It shares a column with the unit it attaches to, so each added bay costs less than a second starter unit.
Each add-on unit includes (1) column, (1) single base, straight arms with lips, (1) brace set, and all necessary hardware. Available in 7', 8', and 10' heights (MS-7AJ-MCM, MS-8AJ, MS-10AJ). An add-on unit requires a Steeltree 08 single-sided starter unit of the same height.
What's Included
- (1) Steeltree 08 single-sided column
- (1) single base
- Straight arms with lips (quantity per model below)
- (1) brace set
- All necessary hardware
Why the Steeltree 08 Single-Sided Add-On Unit
Lower cost per bay — One column per add-on instead of two, sharing the column of the adjoining unit.
Matched to your starter — Same height, arm length, and arm capacity as the corresponding MS starter unit.
Extend as you grow — Add bays one at a time to fit longer stock or more SKUs.
Arms adjust on 3" centers — Set levels to match the stock in each bay.
Ships knocked down — Steeltree ships unassembled for easier transit and lower freight cost.
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.
Steeltree 08 Single-Sided Add-On Unit — Model Comparison
| Model | Height | Arm Length | No. of Arms | Capacity per Arm | Unit Capacity | Weight | Price |
|---|---|---|---|---|---|---|---|
| MS-7AJ-MCM | 84" (7') | 18" | 4 | 870 lbs | 3,480 lbs | 169 lbs | $680.99 |
| MS-8AJ | 96" (8') | 24" | 4 | 650 lbs | 2,600 lbs | 225 lbs | $710.99 |
| MS-10AJ | 120" (10') | 36" | 6 | 430 lbs | 2,580 lbs | 192 lbs | $864.99 |
Specifications
| Specification | Detail |
|---|---|
| Manufacturer | SPG International (Gillis Jarke) |
| Series | Steeltree 08 – Medium Duty |
| Model Numbers | MS-7AJ-MCM, MS-8AJ, MS-10AJ |
| Configuration | Single-sided add-on unit |
| Height | MS-7AJ-MCM: 84" MS-8AJ: 96" MS-10AJ: 120" |
| Base Length | MS-7AJ-MCM: 31" MS-8AJ: 37" MS-10AJ: 46" |
| Brace Width | MS-7AJ-MCM: 48" MS-8AJ: 48" MS-10AJ: 72" |
| Arms | MS-7AJ-MCM: (4) 18" straight arms with lips MS-8AJ: (4) 24" straight arms with lips MS-10AJ: (6) 36" straight arms with lips |
| Capacity per Arm | MS-7AJ-MCM: 870 lbs MS-8AJ: 650 lbs MS-10AJ: 430 lbs |
| Unit Capacity | MS-7AJ-MCM: 3,480 lbs MS-8AJ: 2,600 lbs MS-10AJ: 2,580 lbs |
| Weight | MS-7AJ-MCM: 169 lbs MS-8AJ: 225 lbs MS-10AJ: 192 lbs |
| Arm Adjustment | 3" centers |
| Construction | Steel |
| Standard Finish | Gray-Green |
| Assembly | Ships unassembled (knocked down) |
| Ships From | Freeport, IL |
Important: Do not exceed column capacities. Column capacity does not include the base. Distribute loads evenly and confirm your load requirements with us before ordering.
FAQ
How much weight can each arm hold?
MS-7AJ-MCM: 870 lb per 18" arm; MS-8AJ: 650 lb per 24" arm; MS-10AJ: 430 lb per 36" arm.
What is the total capacity of each model?
MS-7AJ-MCM: 3,480 lb; MS-8AJ: 2,600 lb; MS-10AJ: 2,580 lb.
Which models and heights are available?
MS-7AJ-MCM: 84" (7') high with 4 arms, 18" long; MS-8AJ: 96" (8') high with 4 arms, 24" long; MS-10AJ: 120" (10') high with 6 arms, 36" long. Choose your height at the top of this page.
How big is the footprint?
Base length by model: MS-7AJ-MCM: 31"; MS-8AJ: 37"; MS-10AJ: 46". Brace width: MS-7AJ-MCM: 48"; MS-8AJ: 48"; MS-10AJ: 72".
Can the arms be adjusted?
Yes. Arms adjust on 3" centers along the column.
What is the difference between single-sided and double-sided?
Single-sided units have arms on one side of the columns, so they can sit against a wall. Double-sided units have arms on both sides, doubling storage in the same aisle footprint and loading from either aisle.
Which unit does this add-on attach to?
A Steeltree 08 single-sided starter or add-on unit of the same height. It shares a column with the unit it attaches to.
Are other arm lengths available?
Steeltree 08 straight arms are available in 12", 18", 24", 30", 36", and 48" lengths; inclined arms in 12", 24", and 36" lengths. Contact us for pricing.
Does it come assembled?
No. Steeltree ships unassembled (knocked down) for easier transit and lower freight cost.
What color is it?
The standard finish is gray-green. Custom colors are available for an additional charge.
How is the Steeltree 08 add-on unit delivered?
It ships unassembled by freight from SPG International (Gillis Jarke) in Freeport, IL. It weighs 169 to 225 lb depending on model, so plan for a forklift, pallet jack or enough people to unload it, or ask us to add liftgate delivery. Freight is not included in the order total: we confirm your freight rate and lead time within 1 business day and send a separate freight invoice for approval. Standard lead time is about 15 business days. You can also use your own freight carrier at no extra cost.
Can I return it?
Return requests must be made within 10 days of delivery, with authorization. Items must be unused, unassembled and in sellable condition, a 25% restocking fee applies, and custom colors and configurations are not returnable.
Is My Warehouse World an authorized Gillis Jarke dealer?
Yes. We're an authorized Gillis Jarke dealer. Your order is placed directly with SPG International (Gillis Jarke) and ships from Freeport, IL.
Customization & Accessories
Contact us to discuss any of the following:
Arms — Steeltree 08 straight arms are available in 12", 18", 24", 30", 36", and 48" lengths; inclined arms in 12", 24", and 36" lengths. Contact us for pricing.
Individual Components — Columns, bases, arms, and brace sets are available individually.
Custom Colors — Standard finish is Gray-Green. Custom colors are available for an additional charge.
Other Configurations — Steeltree 25 heavy duty units, single and double-sided units, and Gillis Jarke Button-On, Quiktree, and Minitree racks. Contact us and we will quote the configuration you need.
Volume Pricing — Ordering multiple units? Ask about multi-unit pricing.
To discuss options, call (929) 577-4339 or email support@mywarehouseworld.com.
Shipping & Returns
Delivery, Lead Time & Warranty
| Topic | Details |
|---|---|
| Ships from | SPG International (Gillis Jarke), Freeport, IL, by freight truck (LTL) |
| Delivery type | Curbside. Plan for a forklift, pallet jack or people to unload. Liftgate delivery available on request. |
| Assembly | Required. Ships unassembled (knocked down). |
| Freight cost | Billed at cost. Confirmed within 1 business day of your order and invoiced separately before shipping. |
| Lead time | About 15 business days. High-quantity and custom orders are quoted separately. |
| Your own carrier | Allowed at no extra cost. Tell us when you order and we'll coordinate pickup. |
| Warranty | Manufacturer's warranty from Gillis Jarke (SPG International). Contact us for warranty terms and claims. |
| Returns | Request within 10 days of delivery, with authorization. 25% restocking fee. |
| Dealer status | Authorized Gillis Jarke dealer. Orders are placed directly with SPG International. |
Shipping Policy
This product ships via freight carrier from SPG International's Freeport, IL facility. It ships unassembled. Please plan for appropriate equipment or personnel to unload.
Freight is not included in your order total. After placing your order, a member of our team will contact you within 1 business day to confirm your freight rate and lead time. A separate freight invoice will be sent for your approval before your order ships. Your order will not ship until freight is confirmed and paid.
Standard lead time is approximately 15 business days. High-quantity and custom orders are quoted with their own lead time. Tracking provided via email once your order ships.
Return Policy
| Return Policy | Details |
|---|---|
| Return Window | Return requests must be made within 10 days of delivery |
| Authorization | Required before shipping any return; returns sent without authorization will not be accepted |
| Condition Required | Unused, unassembled, and in sellable condition; items returned in non-sellable condition are charged for repairs |
| Restocking Fee | 25% |
| Return Shipping | Buyer responsible for return freight to Freeport, IL; original freight charges are non-refundable |
| Damaged in Transit | Note any damage on the delivery receipt and contact us within 48 hours of delivery with photos. We recommend photographing items before shipping any return |
| Special Orders | Custom colors and configurations are not returnable |
To request a return authorization, contact us at support@mywarehouseworld.com or (929) 577-4339 within 10 days of delivery.