The moment this decision actually gets made is not in a racking quotation. It is in a warehouse viewing, clipboard in hand, landlord's agent talking about lease terms, and a decision that has to happen before any racking designer sees the unit: is this floor and this ceiling height even the right shape for what you store?

For an operation storing cable drums, coils or reels, that question is harder than it is for a business storing cartons on pallets. The load shape is different, the handling equipment is often different, and a unit that would suit an ordinary pallet operation perfectly well can be the wrong building for drums. We've written elsewhere about the racking side of that — purpose-made drum frames against cantilever against cradled shelving. This is about the building decision that comes before any of that: what to check on a viewing, before you sign, so you are not stuck with a unit the racking cannot actually work in.

Floor loading: ask for the figure, not a feeling

A pallet spreads its weight across a full pallet footprint. Drum storage rarely does. A purpose-made drum frame or a cantilever base concentrates weight into a small number of baseplates, and depending on how the frame is built, those baseplates can carry a genuinely high point load into the slab through a small footprint.

Whether that is a problem depends entirely on what the slab is actually rated for, and that is not something you can tell by looking at the floor or by asking whether "racking has been done here before." Ask the landlord, in writing, for the floor's rated loading capacity before you sign — not after your racking layout has been quoted. If the landlord or the agent cannot produce a figure, treat that as a flag for a heavy racking commitment, not something to shrug off. A structural assessment before you sign costs far less than discovering the answer after base plates are already installed. The fuller argument for getting this in writing, and what it has to do with the tenancy agreement itself, is in racking in a leased warehouse: floor loading, landlord consent and the reinstatement clause.

Headroom: check the clearance your equipment actually needs

Racking height is only half the ceiling question. The other half is how the drums get onto the racking in the first place, and that varies more for drums than it does for cartons.

A drum drawn from in place is usually held by its core, on a shaft, and lifted into position with a lifting beam or a mobile crane rather than simply forked in on a standard mast. A drum dispatched whole might be handled by a forklift fitted with a drum clamp. Each of those pieces of equipment has its own overhead requirement, at its own working height, and it is not the same number as "racking height plus a metre." Check the clearance at the lowest point in the building — sprinkler heads, ducting, light fittings, any suspended services — against what your actual handling method needs at full reach, not against the racking drawing alone.

Aisle width: the attachment changes the answer

A standard aisle-width figure for a counterbalance forklift assumes a standard forklift. A drum clamp or a shaft-and-beam attachment changes the truck's effective length and the shape of its turning circle, sometimes by more than people expect from looking at the attachment itself. We've set out why a forklift's turning radius is the detail that quietly ruins a warehouse layout — for drum handling specifically, the rule is: get the actual attachment's dimensions from whoever handles your drums, and check the aisle against that machine, not against a generic aisle-width guideline that assumes a plain fork carriage.

The reinstatement clause: settle it before the racking goes in, not when the lease ends

Concentrated point loads usually mean base plates bolted or chemically anchored to the slab, which means holes in someone else's floor. Most Singapore industrial leases require the tenant to reinstate the unit at the end of the tenancy, and a floor full of anchor holes from a drum-storage layout is exactly the kind of thing that clause is written for. Settle in writing, before the racking is installed, what happens to those fixings at handover — patched, left, or charged back — rather than discovering the landlord's expectation on the final walk-through. This is the same clause discussed in the leased-warehouse article linked above; for concentrated point loads it is worth reading before you sign, not after.

Bring dimensions to the viewing, not just a floor plan

A floor plan tells you the footprint. It does not tell you whether the building works for your drums, and the two are often confused right up until the racking layout comes back wrong. Bring numbers, not just a tape measure: the largest drum diameter and flange width you hold, the heaviest single unit, the reach and mast height of the handling equipment at its working extension, and — if you already have one — a rough bay count from a previous layout. A racking supplier can usually tell you within a viewing whether a unit works or does not, if you bring the actual figures rather than a general description of "cable drums." Waiting until after the lease is signed to find this out removes your only leverage to walk away or renegotiate.

Size for the lease term, not for today's stock

An industrial lease in Singapore typically runs two to three years, sometimes longer, and drum inventory rarely stays flat across that period. A new supplier can bring a larger drum diameter than anything you currently hold, and diameter — more than weight — is what forces a layout to be redesigned rather than simply topped up. If the unit you are viewing has no spare floor area or spare height beyond what today's drums need, a change of supplier partway through the lease can leave you with racking that no longer fits what you are actually storing, in a building you are contractually stuck in for another year or two. Ask what headroom the unit gives you beyond today's largest drum, not just whether today's drums fit.

A short checklist for the viewing

• Get the floor loading rating in writing from the landlord before you sign, and ask what happens if none exists.
• Know your largest diameter and heaviest unit — today, and after your next likely supplier change — because that is what the layout has to be designed around, not the average of what you hold now.
• Know exactly how each drum is handled — clamp, shaft and beam, crane, or manual — because that single fact decides both the headroom and the aisle width questions above.
• Check overhead clearance at the handling equipment's actual working height, against the lowest service in the ceiling, not against the racking height alone.
• Ask about anchor and fixing consent, and the reinstatement expectation, before the racking is designed, so it is a known cost rather than a dispute at handover.

Where the racking design comes in

None of the above tells you which storage method is right for your drums — purpose-made frame, cantilever, cradled shelving or vertical restraint — because that depends on whether you draw cable from the drum or dispatch it whole, and on the questions set out in our piece on storing cable drums, coils and rolls. All of it, including cable drum frames, sits within Wong Lye's full range of pallet racking systems — fabricated in Singapore and designed against the actual load case rather than a catalogue. What the checks above decide is whether the building you are about to lease can actually carry that design once it exists. Getting the answer to that before you sign is considerably cheaper than getting it after.

Tell us what you're storing and what you're looking at

If you're comparing units and want an honest read on whether a floor plan or floor loading figure works for cable drum, coil or reel storage, send it to us before you commit. A short conversation before a lease is signed is worth more than a racking quotation after.

WhatsApp 9107 2601 about a warehouse floor plan or floor loading check →