How to Choose Pallet Racking: Singapore Guide 2026

Singapore warehouse rents have risen 26.5% since the third quarter of 2020, so wasted cubic metres carry a real cost. Knowing how to choose pallet racking shapes warehouse economics as much as floor layout. The right system fits your stock rotation, forklift fleet, ceiling height and floor loading to one proven format. This blog walks you through that choice, using the pallet racking systems NTL Storage installs island wide.

What actually decides which pallet racking system fits your warehouse?

Six inputs decide it: how your stock rotates, how many SKUs you hold and how fast they move, the selectivity you need, your forklift fleet, the building’s clear height and floor loading, and your budget per pallet position. Get those six right and the rack type almost picks itself.

The mistake most operators make is starting with a rack type they saw at another site, then forcing their stock into it. Start with the stock. A 3PL holding 400 mixed client SKUs has a different problem from a beverage distributor cycling 12 fast moving lines, and the same steel will not serve both.

Two of those six inputs are fixed by the building you lease. JTC floor slabs for general industrial use are typically rated at 20 to 30 kN/m², and clear height runs from 5 to 6 metres in older estates up to 8 to 10 metres in newer ones. You design within those numbers, not around them. The other four inputs are yours to shape, and they are where the real decision sits.

Should you choose for selectivity or for density?

Selectivity and density pull against each other, and your stock rotation decides which one wins. Hold many SKUs that move at different speeds and you need high selectivity, so every pallet stays directly reachable. Hold few SKUs in large volumes and you can trade selectivity for density, packing pallets several deep behind one pick face.

This is the FIFO versus LIFO question in physical form. First in, first out rotation suits perishable and batch tracked goods, and it favours layouts that let you load one side and pick the other. Last in, last out rotation suits non perishable bulk, and it tolerates dense block style storage where the last pallet in comes out first.

For most Singapore third party logistics operators juggling mixed client stock, selectivity wins, and selective racking is usually the right call. For a single product cold store or a chemical drum store running one fast SKU, density wins. The clearer your rotation rule, the easier the rest of the choice becomes. NTL’s guide on when selective racking makes sense sets out where that line falls.

Selective, double deep, drive in or VNA: which racking type matches your stock?

Each format trades selectivity for density on a sliding scale, and your SKU velocity decides where on that scale you should sit. The table below shows the practical trade for the five formats used most in Singapore warehouses.

Racking type	Pallet selectivity	Aisle width	Storage density	Best fit
Selective	~100%	2.5–3.0 m	Low	High SKU count, mixed velocity
Double deep	~50%	2.7–3.2 m	Medium	Medium SKU, several pallets each
Drive in / drive through	Low (one SKU per lane)	Lane access	High	Few SKUs, large volume
Very narrow aisle (VNA)	~100%	1.5–1.8 m	High	High SKU, tall building, limited floor
Pallet flow	Per lane (FIFO)	One load, one pick face	High	High throughput F&B, cold chain

Selective pallet racking keeps every pallet directly accessible, runs on a standard reach truck in a 2.5 to 3.0 metre aisle, and is designed to SS EN 15512. It carries the lowest cost per position of any fully selective format, which is why it remains the default across Singapore SMEs.

A double deep layout stores pallets two deep, cutting the number of aisles by close to half and lifting density. The trade is a deep reach truck fitted with pantograph forks and selectivity that drops to around 50%, since the back pallet waits behind the front one.

Drive in and drive through racking lets the forklift drive into the lane, giving the highest floor density of any static system. Worth noting: SS EN 15512 explicitly does not cover drive in, drive through, push back or mobile systems, so these formats need separate structural design references rather than the same code that governs selective racking. That distinction changes who is qualified to engineer your project.

Very narrow aisle racking runs in a 1.5 to 1.8 metre aisle with floor wire or rail guidance, reaches frame heights past 12 metres, and keeps close to 100% selectivity. It wins the most cube per square metre of any selective system, at the cost of a dedicated VNA truck. Pallet flow racking uses gravity rollers for true FIFO with one load face and one pick face, which is why high throughput cold chain and F&B operations favour it.

How do your ceiling height and floor loading limit the options?

Your usable height is the building clear height minus the clearance the fire code requires below the sprinkler heads, and your floor slab caps how much weight you can stack. Newer JTC estates such as Jurong Innovation District and Changi Business Park offer 8 to 10 metres clear, while older estates in Kallang or Ubi sit at 5 to 6 metres. A 6 metre frame is the common default for reach truck operations in JTC units, supporting five to six pallet levels.

The cap most operators forget is the fire code. The SCDF Fire Code 2023, in force from 1 March 2024, requires storage height to stay below a marked line that preserves the minimum clearance under the sprinkler heads, set in line with SS CP 52. Warehouses must paint a 50mm red line and signage at intervals not exceeding 15 metres. Height you cannot legally fill is not capacity. Design to the fire code line, not to the roof.

Floor loading sets the second ceiling. Heavy pallets stacked five levels high concentrate significant point loads through the baseplates into the slab. Confirm the rated floor capacity with your landlord or JTC before specifying frame loads, because a slab rated at 20 kN/m² will not carry what a 30 kN/m² slab does.

How much aisle does your forklift fleet need?

Your existing trucks set your minimum aisle, and that single number often decides the rack type before anything else does. Standard counterbalance trucks need 3.0 to 3.5 metre aisles. Reach trucks work in 2.5 to 3.0 metres. VNA trucks run in 1.5 to 1.8 metres, but only with floor wire or rail guidance installed.

Narrower aisles convert directly into more pallet positions, since every metre saved on aisles becomes storage. The catch is equipment. Moving from reach trucks to VNA is not a racking decision alone, it is a fleet decision, because the aisle saving only pays off once you have bought the guided truck that can use it. For an operator already running reach trucks, selective or double deep racking needs no new equipment, which is part of why it stays the practical choice for most Singapore fit outs.

How many pallet positions do you need, and how do you cost it?

Count your peak pallet inventory, add a buffer for seasonal swing, then divide by the positions each layout yields in your actual footprint. Cost per position falls as density rises, but density buys back selectivity and, in the VNA case, a specialised truck. The cheapest position on a spreadsheet is not always the cheapest to operate.

The market context sharpens this. The JTC All Industrial Rental Index rose 0.4% over the first quarter of 2026 and 2.3% over the year, with warehouse occupancy at 89.4%, according to CBRE’s commentary on the Q1 2026 statistics. Prime logistics space is tighter still, at 95.8% occupancy and projected to reach 97% by year end. Catherine He, Head of Research at Colliers Singapore, has pointed to “an average annual supply of 1.1 mil sqm industrial space” arriving from 2024 to 2026, much of it already pre committed.

The takeaway for sizing is direct. With prime logistics near 96% occupancy, you cannot assume you will simply lease more space next year. Size the racking to grow within the unit you already hold, which usually means choosing a denser format earlier than feels comfortable.

Which standards must your racking meet in Singapore?

Three frameworks matter, and a credible supplier works to all three. SS EN 15512 governs the structural design of adjustable pallet racking, covering member design, manufacturing tolerances and component testing. SS EN 15635 governs safe use, inspection and maintenance once the rack is in service. The SCDF Fire Code 2023 governs storage height and sprinkler clearance. Singapore suppliers also reference SS 573, the local standard for steel racking design.

Under SS EN 15635, you must appoint a Person Responsible for Racking Safety to run weekly visual checks, with a technically competent inspector carrying out a full inspection at least every 12 months. Damage is graded on the SEMA traffic light system: green stays in service and is monitored, amber must be offloaded and repaired within four weeks or it escalates to red, and red is offloaded and isolated at once. A 4mm horizontal deflection across the bottom metre of an upright is a typical amber finding.

The design code also tells you something about your rack choice. SS EN 15512 applies to selective and adjustable beam racking but not to drive in, push back or cantilever systems, so a denser format pulls a different set of design rules into your project. A supplier who cannot show design calculations to SS EN 15512 is quoting steel, not engineering. Before you commit, run through NTL’s questions for vetting a racking contractor so compliance is proven on paper, not promised.

The decision in order

The rack type is the output of the decision, not the input. Stock rotation and selectivity needs come first, your building’s clear height, floor load and fire code line filter the shortlist, and your forklift fleet plus the right standards confirm what survives. Working in that order is what separates a warehouse that fills its cube from one that buys the wrong steel twice and pays to take the first set out.

Book a site survey with NTL Storage and we will model your load profile against the right system mix before any steel is ordered. Request a racking site survey and bring your pallet counts, SKU list and ceiling height to the first conversation.

FAQs About How to Choose Pallet Racking 

Does pallet racking need PE endorsement in Singapore? 

Tall installations and rack supported mezzanines generally need a Professional Engineer endorsement for the BCA submission, while standard low bay racking usually does not. The structural design still has to demonstrate compliance with SS EN 15512 or SS 573. Confirm the threshold with your supplier and landlord before installation.

What is the best pallet racking for a small Singapore warehouse? 

Selective pallet racking suits most small warehouses, since it runs on a standard reach truck in a 2.5 metre aisle and reconfigures as stock changes. For hand loaded SME stock under 800kg per level, boltless shelving from NTL Storage is often cheaper and faster to install than full pallet racking.

Can I reconfigure pallet racking later if my inventory changes? 

Yes. Selective and adjustable beam systems let you move beam levels and re space bays in minutes, which matters on a short JTC lease. Drive in and VNA layouts are far harder to change once the guidance and lane structure are set, so plan those for stable, long term stock profiles.

How high can pallet racking go in a Singapore warehouse? 

Frames are commonly built from 2,400mm to 12,000mm, but your real limit is the building clear height minus the SCDF Fire Code 2023 sprinkler clearance. Newer JTC estates offering 8 to 10 metres clear allow six or more pallet levels, while older 5 to 6 metre units cap you lower.