Industrial Wire Shelving — Chrome, Epoxy & Stainless Wire Shelving Units
Open-grid wire shelving for warehouses, stockrooms, parts departments, coolers and production floors. Seven shelf depths, ten post heights, eight finishes, add-on bays that build continuous runs, and mobile kits that turn any unit into a cart. We size the run, confirm the finish for your environment, and supply it complete.
800 lb
per-shelf capacity on heavy-duty wire units
7
shelf depths from 12" to 36"
10
post heights from 6" to 96"
1,200 lb
load capacity on the four-caster mobile kit
Why wire shelving still wins in industrial storage
Wire shelving earns its place for four unglamorous reasons. Air and light pass straight through the shelf, so cartons dry, coolers circulate and a picker can see the back of a 24" deep shelf from the aisle. Dust and debris do not collect on an open grid the way they do on a solid pan. Shelves adjust on one-inch increments, so a run can be re-pitched for a new part mix in an afternoon instead of being rebuilt. And the same four posts that carry a stationary unit accept a caster kit, which means a stockroom bay can become a transport cart without buying a second product.
Wire shelving is specified in a fixed order: finish first, then shelf depth, then post height, then how the unit has to grow. Get those four decisions right and everything else — baskets, dividers, enclosure panels, label holders, shelf mats — bolts on later without replacing the unit. Get them wrong and you end up with chrome posts rusting in a wash-down area, or 12" shelves holding parts that needed 21".
Material Handling USA supplies industrial wire shelving from several manufacturers and is a supplier and project partner for the Quantum Storage Systems wire line, which is the widest single wire program we stock. This page is deliberately vendor-neutral on specification: the sizes, capacities and finish behaviour described here are the published figures for the Quantum wire program we quote most often, and where you already standardized on another brand we will match your existing posts and shelf sizes rather than sell you a changeover.
What this page covers
Finishes and where each one belongs, shelf and post specifications, starter kits and add-on bays, mobile kits and stem-caster carts, solid and hybrid shelves, corner, one-box, basket, reel and enclosure units, high-density sliding systems, and the accessories that make a run work. Everything here is industrial, warehouse, foodservice and commercial. Clinical and patient-care storage is handled by our sister company — see Labs USA healthcare storage solutions for that side of the catalog.
- Airflow and visibility. Open grid lets air circulate and light reach the back of deep shelves.
- One-inch adjustability. Numbered, grooved posts let shelf pitch change with the part mix.
- Tool-free assembly. Split plastic sleeves snap to the post; the shelf drops over the sleeve and locks.
- Grows sideways. Add-on bays share a set of posts, so a two-bay run costs less than two units.
- Becomes mobile. A caster kit converts a stationary unit into a transport cart.
Wire shelving finishes — pick for the environment, not the look
Finish is the first decision because it is the only one you cannot change later. The published warranty against rust and corrosion tells you exactly what the manufacturer expects each finish to survive: one year for chrome and galvanized in dry, non-humid storage, fifteen years for the powder coated epoxy finishes, and a lifetime warranty for 304 stainless steel with an electro-polish finish and for all-polymer shelving. Those warranty terms, not marketing language, are how we recommend a finish.
Chrome Wire ShelvingThe standard industrial and commercial finish. Hard chrome plated over copper and nickel, up to 800 lb per shelf, one-year limited warranty against rust and corrosion in dry, non-humid storage. Widest size range of any finish.
Proform Green EpoxyCarbon steel treated with iron phosphate, then electrostatically powder coated, baked and cured. Built for high-humidity, wet and walk-in cooler areas, up to 800 lb per shelf, fifteen-year limited warranty against rust and corrosion.
Gray EpoxySame epoxy system in a neutral gray that hides scuffing in high-traffic stockrooms and shipping areas. Up to 800 lb per shelf, fifteen-year limited warranty against rust and corrosion.
Black EpoxyThe same corrosion-resistant epoxy in black for front-of-house, retail backroom and display-adjacent areas. Up to 800 lb per shelf, fifteen-year limited warranty. Also offered in a 39" post height.
Stainless Steel Wire304 stainless with an electro-polish finish — the finish for corrosive, high-humidity and clean-room areas. Up to 800 lb per shelf, lifetime limited warranty against rust and corrosion. See our stainless steel shelving page for solid stainless units.
Polymer & Wire HybridWire frames with removable polymer shelf plates: a smooth, vented surface that lifts out for cleaning. Up to 800 lb per shelf, fifteen-year warranty on the epoxy frame and a lifetime warranty on the polymer mats.Finish suitability by storage environment
The manufacturer publishes suitability by environment for each finish family. This is the table we work from when a project involves coolers, freezers or wash-down:
| Finish | Dry storage | Wet storage | Cooler | Freezer | Limited warranty* |
|---|---|---|---|---|---|
| Chrome / galvanized | Yes | No | No | No | 1 year |
| Proform green, gray & black epoxy | Yes | Yes | Yes | Yes | 15 years |
| Proform green polymer (hybrid) | Yes | Yes | Yes | Yes | 15 years wire / lifetime mats |
| 304 stainless steel, electro-polish | Yes | Yes | Yes | Yes | Lifetime |
| All-polymer shelving | Yes | Yes | Yes | Yes | Lifetime |
*Manufacturer’s published limited warranty against rust and corrosion. Warranty terms are set by the manufacturer, not by Material Handling USA, and we confirm current terms in writing with every quote.
Program tiers
The wire program is organized in tiers: Classics (chrome wire and galvanized or stainless solid shelving), Classics Plus (epoxy coated wire), Premium (the polymer-and-wire hybrid), and Millenia, an all-polymer shelving system rated up to 1,000 lb per shelf with a patent pending design. If a run has to move between a dry stockroom and a cooler, the epoxy tiers are usually the practical compromise; if it lives in a wash-down area permanently, stainless or all-polymer is the honest answer.
Wire shelves and posts — the real specifications
Shelves
Shelves are all-welded with additional wire trussing under the mat for strength, and on every size except 12" x 36" the top mat wires run front to back so cartons slide on and off without catching. Split sleeve connectors secure each corner to the post. Depending on shelf size and program tier, published capacity runs up to 600 lb and up to 1,000 lb per shelf, evenly distributed.
Shelf depths: 12", 14", 18", 21", 24", 30" and 36".
Shelf lengths: 24", 30", 36", 42", 48", 54", 60", 66" and 72" (66" in chrome and epoxy).
Posts
Posts are fabricated from 16 gauge carbon steel with location grooves on one-inch increments and printed numbers between the grooves, so two people can level a five-shelf unit without a tape measure. Leveling legs are included with every post. On 63", 74" and 86" posts a pre-inserted leveler and bolt version is available, which saves real time on large installs.
Post heights: 6", 14", 34", 36", 39", 42", 54", 63", 74", 86" and 96" depending on finish.
Threaded stud connectors join two posts to reach a non-standard height, and post inserts, post levelers, replacement caps and post label holders (1" x 6" and 2" x 4") are all stocked as four-packs and twelve-packs. Leveling legs cannot be used together with stem casters — pick one.
Assembly is genuinely three steps
Snap the split plastic sleeve around the post at the groove you want, slide the shelf down over the sleeve until it locks, repeat. No tools, no fasteners, no bolts to lose. Two S-hooks per shelf tie an add-on bay to the unit beside it. A four-shelf unit takes minutes, which is why wire shelving is still the fastest storage to stand up in an occupied building.
Starter kits, complete units and one-box shelving
Almost nobody buys shelves and posts loose the first time. Starter kits ship complete with four posts and either four or five shelves in a chosen depth, length and finish, and additional shelves can be added to the same posts later. Standard unit heights are 54", 63", 74" and 86", all rated up to 800 lb per shelf, in chrome, stainless, Proform green, gray and black epoxy.
4- and 5-Shelf Starter KitsFour posts plus four or five shelves in one carton. Four levels suit totes and mixed stock; five levels suit cartons where vertical pitch is tight and cube matters more than clear height.
Polymer-Mat Complete UnitsComplete hybrid units with removable polymer shelf plates on epoxy frames — the usual choice for coolers, prep areas and anywhere shelves get washed.
One-Box Units (Chrome)Four-shelf 72"H units, 18" and 24" deep by 30" to 48" long, up to 300 lb per shelf, packed in a single carton for simple receiving and low transit cost.
One-Box Units (Epoxy)The same single-carton concept in green and black epoxy, plus a Proform green polymer-mat version at 74"H rated up to 600–800 lb per shelf.Where a job needs dozens of identical bays, the one-box units are hard to beat on receiving labour: each unit is one carton containing posts, shelves, split sleeves and hardware, which makes inventory control and site staging straightforward. Where a job needs 800 lb shelves, deep 24" and 30" bays, or a finish other than chrome and epoxy, the standard starter kits are the right base. Both approaches use the same accessories.
Shop Online at MaterialHandling-USA.com
Ready-to-ship wire shelving units, shelves and posts are also listed on our online store:
Add-on bays: how a single unit becomes a wall of shelving
An add-on kit is a starter kit minus two posts. It shares the middle set of posts with the unit beside it, and each kit ships with two posts, four or five shelves and eight or ten S-hooks. Three layouts are supported: side to side for a continuous run, back to back for a double-sided island, and right angles for an L-shape around a corner.
The practical effect is that a 20 ft wall of shelving needs far fewer posts than five separate units, lines up dead straight, and stays adjustable across the whole run. Two S-hooks go on each shelf wherever two posts are not used, tying adjacent shelves together.
One planning rule matters: a run that uses add-on kits cannot be made mobile. If the bays have to move, specify individual units with caster kits instead of a shared-post run.
Mobile wire shelving: kits, carts and stem-caster units
Mobility is the reason wire shelving shows up in so many workflows. The same posts that stand on leveling legs accept a caster kit, and the published load capacities are high enough for real work — not just moving an empty unit out of the way to sweep.
| Mobile option | What it is | Published capacity | Notes |
|---|---|---|---|
| WR-00H mobile kit | Four swivel 5" x 1-1/4" thermoplastic resin casters, two braked | Up to 1,200 lb load capacity (300 lb per caster) | Recommended for shelves 18" deep and deeper |
| WR-00H-HD | Four swivel 5-1/2" heavy-duty polyurethane casters, two braked | 600 lb per caster | For heavier stock and rougher floors |
| WR-3 stem casters | Four 3" polyurethane stem casters, all braked | Up to 800 lb load capacity | Used with the one-box units and lower-profile carts |
| WR-00CO | Four swivel ESD/conductive 5" casters, two braked | 300 lb per caster | For static-sensitive assembly areas; grounding is set by your ESD program |
| WR-00H-5 (corner units) | Five swivel 5" thermoplastic resin casters, two braked | Up to 1,500 lb load capacity | For five-post corner shelving systems |
4 & 5 Shelf Stem Caster CartsComplete mobile carts: four posts, four or five wire shelves, four donut bumpers and four 5" resin casters with two brakes. Supply and distribution, stock rotation, staging.
Wire & Solid Combination CartsWire shelves for visibility and airflow with a solid bottom shelf that contains spillage and keeps floor dust off the load.
Solid Shelf Mobile CartsFour or five solid shelves in galvanized or stainless steel for tools, small hardware and anything that would fall through an open grid.
Caster Kits & BumpersMobile kits, heavy-duty and stainless caster options, pneumatic and plate casters, and 3" non-marking donut bumpers to protect walls and corners.If the requirement is high-density mobile storage rather than transport carts — whole ranges of shelving that slide on tracks to eliminate aisles — see the high-density sliding systems below, or our complete mobile shelving system guide for the carriage-mounted mobile shelving side of the catalog. If what you need is a cart rather than a shelving unit on casters, the M1836 stem-caster carts above are part of a much wider range — wire, polymer, enclosure, bin and tray-truck builds are all on our industrial utility carts hub. To see how wire shelving sits alongside the bin, cabinet and cart families, browse the full Quantum Storage Systems line.
Solid shelves, hybrid mats and shelf covers
Wire is not always the right shelf surface. Small hardware falls through an open grid, liquids drip to the level below, and some inspection routines want a wipeable surface. Three options solve that without abandoning the wire post system, so a run can mix wire and solid levels on the same four posts.
Galvanized Solid ShelvingAll-welded 18 gauge galvanized steel shelves, dual-layer with a double-hemmed perimeter and marine edge that retains spillage. Up to 600 lb per shelf, one-year limited warranty in dry storage. Depths 14"–24".
Stainless Solid ShelvingThe same solid shelf built from 304 stainless with an electro-polish finish for corrosive and high-humidity areas, with a lifetime limited warranty against rust and corrosion.
Shelf Inlay Mats & CoversConvert an existing wire shelf to a solid surface: removable polyethylene inlay mats, or clear shelf covers rated from −20℉ to 170℉ that keep liquid from dripping through while leaving wire label holders usable.The hybrid polymer program takes this further: wire frames with removable polymer shelf plates that lift out for cleaning, rated up to 800 lb per shelf, and the all-polymer Millenia system rated up to 1,000 lb per shelf. Both are common in food and beverage, walk-in coolers and wash-down areas — see food service shelving solutions for those environments. For fully enclosed steel shelving with solid sides and back, our industrial steel shelving page covers the closed-shelving side of the catalog.
Specialty wire units
Six configurations solve problems a rectangular bay cannot. All of them use the same posts, sleeves and accessories as a standard unit, so they drop into an existing run.
Corner Wire ShelvingPentagonal corner shelves rated up to 700 lb each, compatible with 18" and 24" deep add-on units, in chrome and Proform green epoxy. Turns a dead corner into four or five usable levels.
Corner Units in EpoxyThe same corner geometry in Proform green epoxy for cooler and high-humidity corners, available as complete four- and five-shelf systems or as a single corner shelf added to an existing run.
Wire Basket UnitsAdjustable 9"H baskets with collar hooks rated up to 150 lb each, positioned angled down to flow parts forward, flat for maximum cube, or angled up for maximum basket capacity. Available stationary or mobile.
Modular Stacking BasketsFree-standing stacked basket assemblies with optional dividers and clear label holders, on a dolly base for up to 800 lb mobile load capacity. Useful for backstock, kitting and supply staging.
Reel Shelving UnitsChrome reel shelves that mix with standard flat shelves: 15 reels of 13"–15" or 78 reels of 7" per shelf, up to 400 lb per shelf, with conductive casters, split sleeves and a drag chain available for static-safe handling.
Enclosure & Security UnitsEnclosure panels of 6 gauge wire on 3" x 3" squares, or security panel sets and door pairs in 1/4" wire on 2" x 2" centres, for 14"–24" depths and 63", 74" and 86" heights. Stationary, stem caster or dolly base.High-density sliding wire shelving systems
When a stockroom runs out of floor before it runs out of shelving, the aisles are the target. Sliding track systems let ranges of wire shelving move sideways so one working aisle serves several ranges. Two designs cover most industrial rooms.
Sliding floor track
An aluminum v-groove track with 304 stainless steel inserts is anchored to the floor; it has a gradual taper and a maximum height of 7/16", so it is not a trip hazard. Aluminum skates with engineered plastic wheel housings sit under each post on industrial bearings rated up to 2,000 lb, giving a load capacity of up to 1,500 lb per shelving unit.
Ordering is straightforward: track by the inch (two tracks per single unit, three per double), one skate per post row matched to the shelf depth, one end stop kit per track length, plus a wing kit for each double unit and drift resistors to soften travel. Post height should not exceed a 4:1 ratio to skate size, and shelves and posts are ordered separately.
Sliding overhead track
The overhead version hangs the ranges from a heavy-duty aluminum extrusion, so the floor stays completely clear — no track to sweep around, no threshold at all. Kits assemble to lengths from 8 ft to 24 ft, roll on 5" x 1-1/4" rigid thermoplastic resin casters, and need only single-aisle access. The manufacturer publishes storage area increases of up to 150% versus fixed ranges in the same footprint.
Both systems need an accurate floor plan and clear ceiling and lighting information before quoting, and both are worth modelling against a fixed-aisle layout first — sometimes deeper shelves and a taller post solve the problem for far less. Layout assistance is available and we do it before you commit.
Accessories that make a wire run actually work
The difference between shelving and a storage system is the accessory list. Everything below retrofits to standard 1" diameter posts and standard wire shelves, so an existing run can be upgraded a bay at a time.
Where industrial wire shelving earns its keep
Six environments account for most of the wire shelving we quote. The specification changes noticeably between them, which is why we ask about the room before quoting a unit.
Stockrooms & parts roomsThe default application: 18" and 24" deep chrome bays in a continuous run, shelf pitch set to the carton, label holders on every level. Add bin slides and baskets where small hardware lives.
Backstock & supply roomsFast to install in an occupied building, easy to re-pitch when the product mix changes, and light enough that a two-person crew can stand a room of shelving in a day.
Maintenance & MROMixed load sizes, liquids and messy stock: solid or mat-covered levels for pails and lubricants, wire levels above for cartons and spares, ledges to stop small parts walking off the back.
Food & beverage, coolersEpoxy, polymer-mat or stainless finishes only. Open grid keeps air moving in walk-ins, polymer mats lift out for cleaning, and dunnage racks keep product off the cooler floor.
Tool cribs & controlled stockEnclosure panels and security panel doors turn selected bays into a controlled area, or the whole run sits inside a mesh crib. High visibility of contents is the point — audits get faster, not slower.
Distribution & order pickingBack-to-back add-on runs give two pick faces off one range. Angled baskets flow parts to the front, and matching wire carts move picks to pack-out without transferring product twice.Wire shelving vs. other industrial shelving
Wire is not always the answer. This is how we frame the choice when a customer is deciding between shelving families, and every one of these alternatives is something we also supply.
| Wire shelving | Steel shelving (solid) | Boltless / rivet shelving | Bin shelving | |
|---|---|---|---|---|
| Best for | Airflow, visibility, coolers, adjustability, mobility | Small parts, closed-back neatness, heavy uniform loads | Bulk cartons, fast large-area installs, low cost per bay | High-count small parts with a defined pick face |
| Shelf surface | Open grid; solid, mat or polymer options available | Solid steel pans with optional closed sides and back | Particleboard or steel decking on rivet beams | Steel shelves loaded with plastic bins |
| Typical adjustability | 1" increments, tool-free | Slot increments, clip or bolt | Beam increments, rubber mallet | Slot increments |
| Mobility | Caster kits, stem-caster carts, sliding track systems | Limited; usually stationary or carriage-mounted | Stationary | Mobile bin shelving units available |
| Where to read more | This page | Industrial steel shelving | Boltless shelving | Bin shelving |
Brand-specific wire programs have their own pages: Metro wire shelving, Nexel shelving, stainless steel shelving, and for Utah customers wire shelving in Utah. For plastic bins, totes and containers that sit on these shelves, see industrial storage bins & containers. Practical build guidance lives in our wire shelving installation guide.
How to specify a wire shelving run in five steps
Measure the room, not the shelf
Clear wall length, clear height under lights and sprinklers, aisle width you can actually work in, and door and elevator dimensions for delivery. Deep shelving that cannot get into the room is the most common avoidable mistake.
Choose the finish for the environment
Dry stockroom: chrome or galvanized. Humid, wet or cooler: epoxy, polymer-mat or stainless. Wash-down or corrosive: stainless or all-polymer. Get this wrong and no other decision saves it.
Set shelf depth and length from the load
Depth is driven by the deepest carton or tote you must store, not by the widest space available. Length is driven by wall length divided into bays that keep shelf loads within capacity.
Set post height and shelf count
Pick the tallest post the room and your reach allow, then decide levels. Five shelves in a 74" post suit cartons; four suit totes and mixed stock. Numbered posts make later changes easy.
Decide how the run grows and moves
Continuous run with add-on bays, back-to-back island, or individual mobile units. Remember that shared-post add-on runs cannot be made mobile, and that high-density track systems need a floor plan.
Add the accessories that hold the system together
Dividers, ledges, label holders, bin slides, hang rails, mats and enclosure panels. Budget these at the start — they are what makes the run stay organized six months later.
What we need to quote
Wall or floor dimensions and clear height, the finish or environment, the deepest item you store, target shelf count per bay, whether bays must move, and any accessory needs. Send a photo or a rough sketch and we will come back with a bay-by-bay layout, a parts list and lead times — no pricing guesses, and no specification we cannot source.
Working with Material Handling USA
- Layout support before the order. We lay out the run against your dimensions and tell you when fewer, deeper bays beat more bays.
- Multiple wire programs. We supply several manufacturers’ wire shelving, so the recommendation is not forced by one catalog.
- Supplier and project partner. We are a supplier and project partner for the Quantum line, not the manufacturer, and we do not claim certifications on their behalf.
- One quote for the whole system. Units, shelves, posts, mats, baskets, panels, casters and the bins that go on them.
- Delivery and install coordination. Staged deliveries and phased changeovers so a stockroom stays usable while it is rebuilt.
If a wire shelving run is only part of a larger project, we handle the rest of the room too: shelving solutions across every family, metal shelving, and industrial shelving for heavier and closed-back applications.
Wire shelving FAQs
How much weight can a wire shelf hold?
Which wire shelving finish should I use in a cooler or wash-down area?
What shelf depths and post heights are available?
Can wire shelving be made mobile?
What is an add-on unit and why does it cost less than another unit?
How do I stop small parts falling through a wire shelf?
Do you supply wire shelving for static-sensitive electronics work?
Can I add wire shelving to existing units from another brand?
How much extra storage does a high-density sliding system actually add?
How do I get a quote and what lead times should I expect?
Related products & categories
Storage Bins & ContainersThe plastic bins, totes and containers that turn wire shelves into a small-parts pick face.
Bin Shelving SystemsComplete bin-and-shelving units, pick racks and slanted-shelf systems built on wire and steel frames.
Industrial Steel ShelvingClosed-back and solid-shelf steel shelving for parts rooms, stockrooms and heavier uniform loads.
Shop Wire ShelvingLive stocked wire shelving units, shelves, posts, carts and accessories ready to order.Get a wire shelving layout, not just a carton count
Send us your room dimensions, the environment and what you store. We will lay out the bays, specify the finish, shelves, posts and accessories, and quote it as one package.