Industrial Rack Buying Guide: Types, Sizes, Load Capacity and Safety

Start with the load, not the rack

A rack that looks right in a brochure can fail in use if it was never designed for the load. Before you ask for prices, write down:

• What you are storing: cartons, fabric rolls, spare parts, dies, chemicals in drums, pallets.
• Weight per item and per level, and whether the load is spread evenly (uniformly distributed load, UDL) or concentrated at points.
• How items are loaded: by hand, with a trolley, or by forklift or stacker.
• Size of the largest item, including pallet overhang.
• Clear height of the store, sprinkler and light positions, and the floor slab.
• Aisle width needed for people or handling equipment.

With that information, the right rack type is usually obvious, and suppliers can quote a design rather than a guess.

Rack types compared

Slotted angle is the most economical and most flexible for light loads, and it is easy to extend. Boltless shelving is faster to assemble and re-arrange. Heavy-duty racks carry more weight per level and suit spare-parts stores and production support areas. Pallet racking is a structural system: it needs a designed layout, forklift aisles, floor anchoring and impact protection.

Catalogue models and sizes

Safety Plus manufactures industrial racks at its Demra factory. Standard catalogue models are:

Custom lengths, depths, heights and numbers of levels can be discussed against your layout. When you request a quotation, state the number of levels you need and the load on each, so the shelf, beam and upright sections can be confirmed. For files and office storage, compare these with steel almirah and file cabinet sizes.

Load per level, uprights and beams

Rack capacity is not a single number. Ask the supplier for:

• Load per level (per shelf or per beam pair), stated as a uniformly distributed load.
• Load per bay, which is limited by the uprights and is often less than "load per level × number of levels".

Three things control these figures:

1. Beam or shelf span. Longer spans carry less and deflect more. If you need high capacity, a shorter bay is often cheaper than a heavier beam.
2. Upright section and beam spacing. Uprights carry the whole bay. The vertical distance between beam levels (especially the height to the first beam) affects how much load the upright can safely take; larger gaps generally reduce upright capacity.
3. Shelf or deck type. Steel shelves, steel panels, mesh decks or boards all affect how loads are spread.

Point loads such as a heavy gearbox sitting in the middle of a shelf behave differently from evenly spread cartons. Tell the supplier if you have them. Never increase loads or move beam levels beyond the rated configuration without checking with the manufacturer.

Floor, anchoring and layout

• Floor condition: racks need a level, sound slab. For pallet racking and heavy-duty racks, confirm the slab can take the base-plate loads; uneven floors need shims under base plates.
• Anchoring: anchor heavy-duty and pallet racks to the floor. Tall shelving should be tied back-to-back or to a structural wall. Bangladesh has seismic zones identified in BNBC, so unanchored tall racks are a real risk.
• Aisles: allow for the handling equipment's turning space; for hand-loaded shelving, allow enough width for a person and a trolley.
• Fire safety: keep required clearance below sprinkler heads, do not block hose cabinets, extinguishers or exits, and keep main aisles as escape routes.
• Lighting: plan aisle lighting with the rack layout so shelves are not in shadow.

See our warehouses and logistics page for wider store planning, and material handling for trolleys that work with your racks.

Rack safety: protectors, load signs and inspection

• Upright (column) protectors at the front uprights in forklift aisles, and end-of-aisle barriers where turning forklifts can strike the end frame.
• Load signs on each run stating the rated load per level and per bay, and the configuration they apply to.
• Heavy items low, light items high; no climbing on racks.
• Backstops or mesh where items could fall into a walkway behind.
• Regular inspection: look for bent uprights, damaged beams, missing beam locks, loose anchors and overloaded levels. Unload and repair damaged components before using the bay again.
• Training: forklift and store staff should know the load limits and how to report damage.

What decides the price, and how to get an accurate quote

Safety Plus racks are quotation-based. The price depends on:

• Steel section and thickness of uprights, beams and shelves.
• Size and number of levels in each bay.
• Design load per level and per bay.
• Finish: Safety Plus steel products are chemically de-rusted, zinc phosphate coated and oven-baked powder painted.
• Quantity, since larger orders spread set-up and transport cost.
• Accessories: decks, backstops, upright protectors, load signs.
• Delivery and installation, including anchoring.

To get a comparable quotation, send your store layout, clear height, item weights, number of levels and handling method through request a quote, or browse industrial racks. For coating quality questions, read powder coating and zinc phosphate.

Frequently asked questions

Sources

• Occupational Safety and Health Administration (OSHA)