Modular Warehouse Storage / Est. by LJ Koch Group

Storage that moves
as fast as your
operation does.

Industrial-grade portable stack racks — forklift-ready, stack-able 4-to-5 high, no anchors, no permits. Buy new, buy used, or rent for as long as you need them.

5x
Stack height multiplier
24hr
Quote turnaround
Portable steel stack rack with removable posts
— 01 / Capabilities

Built for the way
warehouses actually run.

Stack racks aren't fixed pallet racking. They move, reconfigure, and disappear when you don't need them. Three traits make our system different from anyone else's.

— 01
Single portable stack rack with removable posts

Easy to Set Up

Insert posts into the base sockets, lift with forklift or pallet jack. No installation, no contractor, no permits, no permanent infrastructure to walk away from.

— 02
Two stack racks vertically stacked using removable post sockets

Easy to Stack

Posts on the lower rack align with sockets on the upper rack. Stack 4-to-5 high with full forklift access from all sides — vertical density without fixed pallet racking.

— 03
Empty stack racks nested compactly for off-season storage

Easy to Store

Remove the posts, nest the bases. Empty stack racks collapse into a footprint a fraction of their working size — no warehouse tax for off-season inventory.

Two portable stack racks vertically stacked
— 02 / What is a stack rack?

Freestanding steel storage that doesn't bolt to anything.

Stack racks are self-contained, forklift-handled steel units — a base, removable posts or end frames, and (sometimes) fold-down sides. Unlike fixed pallet racking, they require no installation, no anchors, no permits, and no permanent infrastructure.

  • Welded steel tubing for industrial duty cycles
  • Bases stack with posts inserted into integrated sockets
  • Different post heights store mixed product sizes on the same base
  • Total stack height up to 5× the smallest footprint dimension
  • Empty racks collapse for compact off-season storage
Explore product line
— 03 / Product Line

Three ways to put
steel under your inventory.

Same engineering, three commercial paths. Lease the cash flow, buy the asset, or pick up reconditioned units that ship the same week.

New Build New portable steel stack racks in warehouse
Custom & catalog builds

New Portable Stack Racks

Engineered to your load specs, footprint and post heights. Made-to-order steel construction.

Custom Dims Built-to-Order Warranty
View New Quote in 24h
In Stock Used blue stack racks loaded with inventory
Inventory available now

Used Stack Racks

Reconditioned units from rotating inventory — same modularity, lower cost, ships fast.

40 × 92 × 60 44 × 92 × 75 48 × 60 × 60
View Used Ships in 1-2 wks
Flexible Term Stack racks in a warehouse with forklift
Short or long term

Rental Stack Racks

Add capacity for weeks, months, or seasons — no capex, no commitment past your peak.

Seasonal Pop-up DC Overflow
View Rentals From 30 days
— 04 / Industries

Where stack racks pay for themselves.

Operations that change shape — by season, by client, by SKU mix — get more value from modular storage than from anything anchored to a slab.

— 01

3PLs & Pop-Up DCs

Stand up client space in days, not months. Reconfigure between contracts without writing off fixed racking.

— 02

Cold Storage

Galvanized and powder-coat options for freezer and cooler environments. No anchors means no slab penetration in temp-controlled rooms.

— 03

Manufacturing & WIP

Move work-in-process between cells without manual handling. Same rack, same load, fewer touches.

— 05 / FAQ

Questions buyers usually ask.

Short answers — call us or send a quote request for anything specific to your facility.

General rule of thumb: total stack height should be no more than 5× the smallest footprint dimension. A 40" × 48" base, for example, supports a stack up to roughly 16 ft tall before stability becomes the constraint. Aisles, forklift mast height, and load type all factor in — we'll spec the right configuration with you.

No on both. Because stack racks are freestanding and forklift-handled, they don't require permits, anchors, or permanent installation. That's the entire reason 3PLs and short-term operations prefer them to fixed pallet racking.

Used inventory typically ships in 1-2 weeks, depending on quantity and location. Custom new builds run 4-8 weeks depending on dimensions and load capacity. Rentals can often ship within days if stock is available regionally.

Yes — that's one of the system's biggest advantages. Different post heights let you store different-sized products in the same stack while sharing a common base. It's common to order two or three post heights against a single base spec.

Standard catalog racks typically run from 2,500 to 4,500 lbs per unit, with stacked capacities engineered to match. Custom builds can be specified higher for industrial and automotive applications. Request a quote with your load requirements and we'll confirm the right spec.

— 05 / In the field

Stack racks at work.

From 3PL facilities to manufacturing floors — portable stack racks handling real loads in real warehouses.

Blue stack racks stacked two high loaded with boxed inventory
Empty portable stack racks in large warehouse
Stack racks with wrapped pallet loads in warehouse aisle
Warehouse with forklift and stack racks loaded with cardboard boxes
— 06 / Get started

Tell us about your load,
your dimensions, and your timeline.

We answer every quote inside one business day. No call-center, no chasing — you'll hear back from Morty or someone on his team with real numbers.

Request a Quote
Or call direct 877.825.0062