Office Flooring Systems in Kuala Lumpur:
What Raised Floor, Under Floor Trunking
and Cement Screeding Mean for Your Fit-Out

Most corporate tenants evaluating office space in Kuala Lumpur focus first on rent, location, and floor plate. The flooring system beneath the carpet rarely enters the conversation until the fit-out designer raises it — and by then, the building has often already been shortlisted. This is a gap worth closing earlier. The flooring system in a Grade A building determines how cabling, power, and data are distributed across the floor, and that in turn determines how easily the space can be reconfigured over the course of a lease. For a Managing Director or Head of Real Estate planning a fit-out, understanding which system a building uses — and what that system permits — belongs in the shortlisting conversation, not the fit-out brief.

The Three Flooring Systems in KL's Grade A Stock

Grade A office buildings in Kuala Lumpur are generally built with one of three flooring systems, and each has a materially different impact on cabling flexibility.

Raised floor consists of a removable panel system installed above the structural slab, creating a cavity beneath through which power and data cabling is run. Because the panels can be lifted at any point across the floor, access to cabling is available almost anywhere a tenant chooses, rather than only at fixed locations. This is the most flexible of the three systems and the one most often associated with international occupiers who anticipate reconfiguring their layout over the lease term.

Under floor trunking uses a network of cable channels cast into the screed at the construction stage, with access provided only at fixed floor box locations spaced across the floor. The floor surface itself is smooth and finished — visually similar to a cement screeded floor — but beneath it sits a planned cabling layout. A tenant can connect power and data at any of these pre-set floor boxes, but cannot create a new access point without breaking into the floor. The system works well where the anticipated layout aligns reasonably closely with the existing floor box positions; it works less well for a tenant whose layout departs significantly from that grid.

Cement screeding alone — without trunking embedded beneath it — is simply a smooth, levelled concrete finish, with no underfloor cabling provision. Power and data must instead be distributed via surface trunking, skirting, or cabling dropped from the ceiling void. This is the least flexible of the three systems in terms of underfloor access, though it is by no means unusual in KL's Grade A market, and many landlords leave the slab in this condition specifically so the incoming tenant can install whichever flooring solution best suits their own fit-out, including a raised floor of their own specification.

Why Raised Floor Is the Preferred Option for Multinational Companies

Raised floor's principal advantage is flexibility with minimum disruption. A tenant reconfiguring a department, adding workstations, or relocating a meeting room can lift the relevant panels, adjust the cabling, and replace the panels — all without breaking into the slab or disturbing adjacent areas. For a multinational company operating on a global real estate standard, or one that anticipates headcount growth or organisational change within the lease term, this matters. Reconfiguration is treated as routine facilities work rather than a construction project.

This is part of why raised floor has become closely associated with newer, internationally specified developments. Within the KLCC precinct, Petronas Twin Towers, Petronas Tower 3 (Carigali Tower 3), and Permata Sapura are fitted with raised floor, as are Equatorial Plaza, Menara Prestige, Integra Tower, and Plaza Conlay. In TRX, Menara Prudential, Menara IQ (HSBC), and Menara Affin similarly offer raised floor.

Exchange 106, also in TRX, is a notable exception. Despite being one of the more recently completed towers in the precinct, Exchange 106 is finished with cement screeding rather than raised floor. This has not prevented the building from attracting strong tenant interest — Exchange 106's appeal rests on a combination of factors including its address within the TRX financial district, its building specification more broadly, and its connectivity, and the absence of raised floor has evidently not been a barrier to leasing activity there. It is, however, a relevant data point for any tenant whose fit-out strategy depends on underfloor cabling flexibility, and worth raising directly with the landlord or agent during due diligence rather than assuming it is standard across all TRX towers.

Buildings such as Menara Binjai, Vista Tower, G Tower, Naza Tower, and Menara Darussalam are fitted with under floor trunking rather than raised floor. None of this makes these buildings unsuitable — under floor trunking remains a workable, widely used system in KL's market — but a tenant should factor in floor box positioning at the test-fit stage rather than assuming full-floor flexibility.

What This Means at Test-Fit Stage

The practical implication is straightforward: the flooring system should inform how a test-fit is approached, not the other way around. On a raised floor, a designer can largely work backward from the desired layout. On an under floor trunking system, the designer should ideally work forward from the existing floor box grid, adjusting the layout to align efficiently with fixed access points rather than fighting against them. On a bare screeded floor with no underfloor provision, the conversation shifts to whether the tenant wants to install their own raised floor system as part of the fit-out, which carries its own cost and programme implications that should be budgeted early.

None of the three systems is inherently disqualifying for a given building. The question is whether the system matches how the tenant expects to use and adapt the space over the lease term — and that is a question worth asking before, not after, a building is shortlisted.