Pallet Flow Racking Singapore: When FIFO Beats LIFO
July 4, 2026
Pallet racking specifications in Singapore decide whether a rack holds its load or fails inspection. Under the Workplace Safety and Health Act, racking that injures a worker can cost a company up to S$500,000 on a first conviction, so the spec sheet is not optional. This blog walks you through beam, upright and anchor specs, using the warehouse pallet racking systems NTL Storage designs and installs island wide.
What do pallet racking specifications actually cover?
Pallet racking specifications describe four linked component families: the beams that carry each level, the upright frames that carry the beams, the connectors and locks that join them, and the baseplates and anchors that tie the structure to the slab. Each carries a rated capacity, and the lowest rating in the chain sets the safe limit for the whole bay.
The number that matters most is the configuration, not the headline figure. A beam rated 3,000 kilograms a pair and an upright rated 12 tonnes a frame only deliver those ratings at a specific beam span, a specific number of levels, and a specific lift height. Change the span or add a level and the rated capacity drops, because the load path through the steel changes.
The table below sets the typical Singapore figures for each spec family. Treat it as a reading key for a supplier’s load chart, not as a substitute for one.
| Component | Key spec | Typical Singapore value | Governing reference |
| Beam (per pair) | Load rating (UDL) | 1,500–3,000 kg (heavy duty 2,500–5,000) | SS EN 15512 |
| Beam | Deflection limit | L/200 (13.5 mm on a 2,700 mm beam) | SS EN 15620 |
| Upright post | Profile / steel gauge | 70–90 mm / 1.8–2.0 mm (heavy duty 100–120 / 2.0–2.5) | SS EN 15512 |
| Upright frame | Vertical capacity | 8 tonnes (90 mm) to 12 tonnes (100 mm) per frame | SS EN 15512 |
| Frame depth | Pallet fit | 900 mm or 1,100 mm | SS EN 15620 |
| Baseplate / anchor | Floor pressure | 20–30 kN/m² general (heavy duty up to ~50) | JTC / SS EN 15512 |
How is a pallet racking beam’s load rating decided?
A beam’s load rating is the uniformly distributed load it carries per pair without exceeding either its bending strength or its deflection limit, whichever is reached first. Standard pallet racking beams carry 1,500 to 3,000 kilograms a pair, while heavy duty beams run 2,500 to 5,000 kilograms a pair using a deeper box section and a higher steel grade.
Deflection is the spec most buyers overlook. SS EN 15512 and the companion tolerances standard SS EN 15620 cap vertical beam deflection at the span divided by 200. On a 2,700 millimetre beam that means a maximum sag of 13.5 millimetres under full load. A beam can be strong enough not to break yet still flex past that limit, which is why a higher rated beam at the same span uses a larger section modulus rather than just thicker walls.
Steel grade drives the rest. Standard beams use S275 steel at 275 megapascals yield strength, while heavy duty beams step up to S355 at 355 megapascals, a 29 percent gain that carries more load per kilogram of steel. The rating always belongs to a stated span, so a 2,700 millimetre beam pair rated 3,000 kilograms is not the same product as a 3,600 millimetre pair carrying the same number on the catalogue line.
How are upright frames sized for gauge and load?
Upright frame capacity depends on post profile, steel gauge, frame height and bracing pattern, in that order of influence. Standard pallet rack posts run 70 to 90 millimetres deep in cross section, rolled from 1.8 to 2.0 millimetre steel, while heavy duty posts step up to 100 to 120 millimetres at 2.0 to 2.5 millimetre gauge.
Profile depth and gauge are not interchangeable, and the difference is large. A 90 millimetre post rated 8 tonnes a frame and a 100 millimetre post rated 12 tonnes look almost identical on a site walk, yet the lighter one fails if loaded to the heavier one’s rating. Frame depth follows the pallet: 900 millimetres suits 1,000 millimetre deep pallets stored stringer in, and 1,100 millimetres is the Singapore default for the common 1,000 by 1,200 millimetre pallet stored stringer out.
Height changes the rating too, because a taller post buckles sooner under the same axial load. Singapore frames run 2,400 to 12,000 millimetres, with a 6 metre frame the default for reach truck work in JTC estates at five to six pallet levels. Frames above 8 metres use a spliced joint that must develop the full upright capacity and sit away from the loaded beam level. The full breakdown sits in NTL’s upright frame sizing guide, and the higher ratings live in the heavy duty racking range.
Why do beam connectors and safety locks matter on the spec?
The beam end connector and its safety lock are the spec line that keeps beams on the uprights during a forklift strike, and skipping them is the most common cheap shortcut in a quote. The connector is a welded end plate whose tabs hook into the column apertures, typically on a 50 by 50 millimetre hole pattern, and the lock is a pin or clip that stops the connector lifting out under impact.
This is a tested characteristic, not an accessory. SS EN 15512 assesses beam end connector strength and connector lock performance as part of rack design, and the Storage Equipment Manufacturers Association advises checking clip engagement at every routine inspection. A loose or missing lock concentrates load on fewer contact points and lets a beam jump its seat when a reach truck clips it from below.
Singapore quotes vary widely here, and the gap rarely shows on a glossy datasheet. Confirm that every beam ships with a fitted safety lock and that the connector is matched to the upright column, since connectors are not universal across brands. NTL covers locks, connectors and column protection in its beam connectors and locks range, sized to the frame they bolt into.
What baseplate, anchor and floor specs go with the rack?
The baseplate and anchor bolts transfer every vertical and uplift force from the frame into the floor slab, so their spec is set by the load above and the concrete below. A standard baseplate sits under each post with at least one anchor bolt, and taller or heavier frames take two or more, sized for both downward load and the uplift that forklift impact creates.
The slab caps what the anchors can do. JTC general industrial floors are typically rated 20 to 30 kilonewtons per square metre, while heavy duty point loads through a baseplate can demand a slab nearer 50 kilonewtons per square metre, often a 200 millimetre reinforced pour to C20/25 concrete or better. Where this breaks down is a heavy rack anchored into a thin or cracked slab: the steel passes its own spec while the floor fails underneath it.
Anchor spec is therefore a two part check. Confirm the anchor type and embedment depth on the drawing, and confirm the slab rating with your landlord or JTC before signing off frame loads, because an anchor only performs to the concrete it grips.
Which design standards must Singapore pallet racking meet?
Three standards govern the steel and one governs its use. SS EN 15512 sets the structural design rules for adjustable pallet racking, covering axial load, eccentricity, pattern loading, down aisle and cross aisle stability, and the partial safety factors applied to each. SS EN 15620 sets the tolerances and the deflection limit, and FEM 10.2.02 is the European design reference many Singapore suppliers still cite alongside the local SS 573.
The scope has a catch worth knowing. SS EN 15512 covers selective and adjustable beam racking but excludes drive in, drive through, pallet live storage and cantilever systems, which run on separate design references. A quote that lists SS EN 15512 against a drive in rack is citing the wrong code, and that mismatch is a fast way to spot a supplier working from a template.
Use and inspection sit under SS EN 15635, which requires a Person Responsible for Racking Safety to run weekly checks and a competent inspector at least every 12 months. Compliance is enforced locally, and NTL sets out the full picture in its guide to racking safety compliance in Singapore, including the load notice rules below.
How do you read a pallet racking spec sheet or load notice?
Read the load chart at your actual configuration, then read the safe working load notice on the rack itself. A spec sheet quotes a beam UDL and an upright capacity, but both are tied to a stated span and level count, so the figure that applies to your bay is the one at your installed dimensions, not the headline maximum.
The notice is a legal document in Singapore. The Ministry of Manpower’s Safe Use of Storage Racks circular requires the safe working load to be prominently displayed and a re-assessment before any change of use, such as a heavier SKU or a new forklift type. The same Workplace Safety and Health Act carries the S$500,000 first conviction penalty that makes the notice worth getting right.
Specifying wrong is expensive both ways. Under specify and the rack fails inspection and gets re-bought; over specify and capital is wasted in a market where the JTC warehouse segment ran at 89.4 percent occupancy in the first quarter of 2026. Catherine He, Head of Research at Colliers Singapore, has pointed to “an average annual supply of 1.1 mil sqm industrial space” through 2026, so cheap floor space to absorb a sizing error is not on the table. Before you sign, work through the questions for a racking supplier and ask for the design calculations behind every rated number.
The decision in one line
A pallet racking spec is a single rated system, and the weakest of its beam, upright, connector and anchor figures sets the safe load for the whole bay. Read every rating at your installed span and level count, confirm the slab and the safety locks, and treat the SWL notice as the legal record it is.
Send your pallet weights, lift heights and floor rating to NTL Storage and we will return a stamped load plan with bay by bay capacities to SS EN 15512. Request a racking design and load plan before you compare quotes on price alone.
FAQs About Pallet Racking Specifications Singapore
What is the safe deflection limit for a pallet racking beam?
SS EN 15512 and SS EN 15620 limit vertical beam deflection to the span divided by 200. On a 2,700 millimetre beam pair that is a maximum sag of 13.5 millimetres at full load. A beam that flexes past this under rated load is under specified for the span, even if it has not yet failed in bending.
What gauge steel is used for pallet racking uprights?
Standard pallet racking uprights in Singapore use 1.8 to 2.0 millimetre steel in a 70 to 90 millimetre post profile, while heavy duty uprights use 2.0 to 2.5 millimetre steel at 100 to 120 millimetres. NTL Storage rates a 90 millimetre post near 8 tonnes a frame and a 100 millimetre post near 12 tonnes, both at a stated height.
Do pallet racking beams need safety locks in Singapore?
Yes. Beam end connectors must carry a fitted safety lock or clip, tested under SS EN 15512, to stop beams dislodging during forklift impact. The Storage Equipment Manufacturers Association advises checking clip engagement at every inspection, and a missing lock is a common finding that downgrades a bay under the SEMA traffic light system.
What load can a standard pallet racking beam hold?
A standard pallet racking beam pair holds 1,500 to 3,000 kilograms as a uniformly distributed load, and heavy duty beam pairs carry 2,500 to 5,000 kilograms. The exact rating depends on the beam span and section, so a 2,700 millimetre pair and a 3,600 millimetre pair with the same profile do not share the same capacity.
