How to Find a Factory by Technical Specs in Malaysia: Power, Ceiling Height, Floor Loading & Land Area

Most factory searches fail for one reason: the requirement is technical, but the search tools are not. If you need a factory in Selangor with at least 3 acres of land, 1500 amp power, 40 ft ceiling height and 3 tonne/m² floor loading, a price-and-location filter will never get you there, and many agents will quote you whatever they have rather than what you asked for. This guide explains the four specifications that actually decide whether a factory fits your operation, and how to search for them properly in Malaysia.

Why technical specs decide the deal

A factory either supports your machinery, your power load and your logistics, or it does not. Square feet and price tell you almost nothing about that. The four specs below are what separate a unit you can move into from one you will spend heavily on retrofitting, or one TNB cannot even power.

Beyond the immediate operational fit, technical specifications affect your total cost of occupancy across the life of a lease or ownership period. A building that requires structural reinforcement, substation upgrades, or slab replacement can delay your start-up by 6–12 months. In a competitive manufacturing environment where speed-to-market matters, such delays can cost more than the factory itself. Understanding and verifying specs before committing is a risk-management exercise as much as a facilities search, and the stakeholders who need to be involved are not just your real estate team but also your production engineers, logistics manager, and electrical consultant.

1. Power supply (TNB amperage)

Malaysian industrial power is 415V three-phase, and the number that matters is the amperage. Light assembly might run on 100–300A; CNC, injection moulding, cold rooms and heavy machinery often need 1000A, 1500A, 2000A or more. Upgrading TNB supply after you move in can take months and cost a lot, so the existing (or approved) amperage is a hard filter, not a nice-to-have. Always confirm the current approved load and whether an upgrade application is already in place.

There is an important distinction between connected load and maximum demand. The connected load is the theoretical total of everything you plug in; the maximum demand is what the factory actually draws at peak. TNB's approved supply capacity sits between these two in practical terms, and your electrical engineer will need to do a load study. The transformer/switchgear capacity on site effectively caps what you can draw, so a property with 2,000A switchgear but only a 1,000A approved supply still needs an application to TNB for an increase.

Long-tail buyers search exactly this way: 1500 amp factory for sale Selangor, high power factory Shah Alam, factory with 2000A TNB supply.

Malaysian Electrical Context: What Works Where

Area	Typical Max Supply
Older industrial estates (e.g. older sections of Shah Alam)	500–1,000A, upgrades subject to network capacity
Established heavy-industrial zones (Klang, Port Klang)	Up to 2,000A+ on-site, easier upgrades
Newer industrial parks with dedicated substations	Up to 2,500A or more, purpose-designed

If your load requirement is near the upper limit of what a building can offer, verify the size of TNB intake, transformer capacity and the upstream feeder. A building may have provision for high capacity, but the local substation may be constrained, particularly in older estates where many factories have already drawn their full allocation.

2. Ceiling / eaves height

Ceiling height decides whether your overhead crane, racking or mezzanine fits. 40 ft is roughly 12.2 m at the eaves, the range high-bay warehousing and crane-served fabrication need. A standard terrace factory at 20–24 ft simply cannot take a gantry crane or high-bay racking. Measure to the lowest eaves/truss, not the ridge.

The distinction between eaves height and ridge height is one of the most common sources of misunderstanding in factory briefs. A building that advertises a 45-ft ridge may have only 32 ft at the eaves, which is where your crane rail or top racking beam needs to sit. Your usable height is the clearance under the lowest structural obstruction, this includes sprinkler heads (which typically need 18 inches of clearance below them), roof trusses, and purlins.

For businesses requiring cranes, the crane rail height is even more important than the eaves measurement itself. If the rail is at 9 m but the building claims 40 ft at the eaves, your crane can lift far less than you might expect. Always ask the landlord for the hook height at the top landing and ensure this clears your tallest product or racking load.

Four Height Scenarios Compared

Building Type	Typical Eaves Height	What Fits	What Does Not Fit
Standard terrace factory	6–7 m (20–24 ft)	Light assembly, standard racking, mezzanine	Gantry cranes, high-bay ASRS
Medium-height detached	9–10 m (30–33 ft)	Larger mezzanines, cranes up to 10 t	12.2 m crane spans
High-bay warehouse	10–12 m (33–40 ft)	Full high-bay racking (7–8 levels)	Heavy fabrication with huge cranes
Crane-served fabrication (heavy)	12.2 m+ (40 ft+)	20–50 t gantry cranes, multiple-level mezzanine	Low-cost conversions

One practical note for tenants: the building height influences TNB supply as well, because taller buildings have different cooling, ventilation and fire suppression requirements. A high-ceiling space will cost more per square foot to cool, so building services efficiency matters in your overall cost projection.

3. Floor loading

Floor loading is how much weight the slab carries per square metre. 3 tonne/m² is about 29.4 kN/m², the grade heavy machinery, racked goods and forklift traffic demand. A slab built for light use (1–1.5 tonne/m²) will crack under that. This single number quietly rules out a large share of older stock, and it is rarely listed, so it must be asked for.

But floor loading is not uniform across a building. The slab near columns or at the perimeter is often stronger, because columns transfer load to the foundations. The mid-span of a bay can be weaker. For racking layouts, your structural engineer will want the per-point load (kg per rack foot) as well as the area load. Many older buildings in Malaysia were built to a general industrial standard without a formal floor-loading certification, so you need either original structural drawings or a slab test.

Live Load vs. Dead Load

Type	Description	Typical Values
Dead load	Permanent fixtures: partitions, mezzanine structures, M&E services	0.5–1.0 kN/m²
Live load	Moving/temporary loads: forklift traffic, racked goods, people	1.5–3.0 kN/m²+
Point load	Concentrated weight at a specific spot: machine feet, racking posts	Varies; must be checked against slab design

If you are placing 30-tonne CNC machines or stacked pallet racks in 6+ tiers, you need a slab with reinforcement and maybe a vapour barrier. Do not assume a 3-tonne/m²-rated floor will accept unlimited point loading, always evaluate your heaviest single point load against the existing slab design.

4. Land and built-up area

Land area sets your yard, container access and expansion room. 3 acres is about 130,680 sqft (1 acre = 43,560 sqft). Detached factories on 3+ acres in the Klang Valley suit manufacturers needing trailer turning circles, open yard storage and room for a second phase. Match built-up to your production floor and land to your logistics.

The built-up-to-land ratio (sometimes described as plot ratio or site coverage in local authority terms) matters enormously. Two buildings on the same land area can have very different usable outside space. A factory on 3 acres with an 80,000 sqft built-up leaves roughly 50,000 sqft+ of accessible yard; another building on the same land area with 120,000 sqft built-up leaves maybe 20,000 sqft of yard. For container handling, you need enough room not just to park a trailer, but to manoeuvre one in and out.

Minimum Yard Requirements by Operation

Logistics Activity	Minimum Yard Depth/Length Required
Container trailer parking (40 ft box)	45 ft per truck bay + turning radius
Forklift loading from dock	30–40 ft apron depth
Double-container side loading	60+ ft clear, headroom for straddle or reach stacker
Open storage (bricks, aggregates, castings)	As per inventory; 10–15% of land typically allocated

Land area also quietly determines your expansion capability. If you are purchasing, does the local authority development plan allow additional building footprint? If you are leasing, does the lease give you a right of first refusal over adjacent land? These issues are far easier to address before you sign than after you are operating and need room to grow.

How to search by these specs (instead of chasing agents)

On FactoryHub you can filter industrial listings by the specs that matter, built-up and land area, power, ceiling height, floor loading and tenure, rather than only price and location. Start from the relevant location and property type:

• Detached factories for sale in Selangor
• Heavy industrial factories in high-power belts like Shah Alam, Klang and Rawang
• Industrial land for sale in Selangor for 3-acre-plus plots

For a hard brief that the open listings do not cover, one dedicated FactoryHub contact takes the full specification and co-brokes it across the whole market on your behalf, then reverts only with units that actually meet the power, height and loading you specified, usually within hours, at most 48 hours.

The 4-Step Technical Search Workflow

1. Translate your operational requirement into building terms. If your machines draw 900 kW combined, discuss with an electrical engineer whether that means 1,000A or 1,600A at 415V three-phase. Document all requirements in writing.
2. Set your "must-have" and "negotiable" specs. Every factory search needs hard filters and soft filters. The four spec columns in this article are the framework.
3. Use search filters first, then apply technical verification. The FactoryHub specification filters are built for this exact purpose. Once you have a shortlist, verify each candidate via the site plan, technical drawings or an engineer's site visit.
4. Get the confirmation in writing. For every spec, require the landlord or agent to confirm in writing: supply capacity (existing and approved), the height at the lowest eaves, the slab thickness and reinforcement (or certified loading), and the zoning permission for your use class.

Verifying factory specs: a site-selection checklist

These are the questions to ask (or bring an engineer to answer) on every viewing. Treat these as a walk-around technical inspection rather than a standard real estate viewing.

• Power supply: Request the latest TNB electricity bill, which shows maximum demand and current connection rating. Note the transformer and switchgear sizes. Ask: What is the current switchboard main breaker rating? How much unused headroom is available? Is the power supply for this unit capacity-guaranteed within the estate?
• Ceiling height: Bring a laser measure or hire a surveyor. Check heights at centre span and at eaves. Ask the landlord: Are the roof trusses, pipes, cable trays or sprinkler mains at a different level from the main roof structure?
• Floor loading: Ask for structural drawings or the building's design specification. If no drawings are available, note the type of pile/ground support and slab thickness. Ask: Has the floor been tested or the slab certified for heavy rolling loads?
• Structure: Are the columns spaced wide enough for your production layout? What fire rating does the structure have? Does the stacking height of goods create a "high-rack" arrangement that triggers FSB requirements?
• Yard/land: Check the gate width and turning radius. Check drainage and flood history. Confirm whether the local authority restricts certain traffic (heavy lorries, hazardous materials) on the road.

Regulatory Checklist

This is another underestimated dimension of specifications: zoning approval does not automatically mean the building itself meets current fire safety requirements. In Malaysia, factories holding a CCC (Certificate of Completion and Compliance) must comply with the Fire Services Act and the Uniform Building By-Laws, which may include sprinkler systems, hydrants, and hose-reel coverage appropriate to the building's approved use. If you are changing the occupancy (e.g., from warehouse to factory or from light assembly to heavy fabrication), the fire authority may require upgrades to the active and passive protection systems.

Also verify planning permission for the specific industrial use class in your local district (e.g., the Shah Alam or Klang Municipal Councils). While "light industrial" and "general industrial" often overlap, certain operations, especially those with significant polluting potential, hazardous materials, or major external traffic generation, may require special approvals.

Factory types and suitability across the Klang Valley

Different areas of the Klang Valley have different dominant stock types, and this matters for your spec requirements.

Location	Typical Stock	Strengths	Considerations
Shah Alam (Sections 15, 16, 23–27, 28)	Mix of standard terrace and detached; some heavy stock	Good highways, mature infrastructure, pool of skilled labour nearby	Spec varies widely by section; older stock may lack power/height
Klang / Bukit Raja	Newer industrial parks (Bukit Raja 2, 3)	Purpose-built heavy stock, high power, high ceiling on new builds	Price is closer to new-development levels; distance from workforce
Port Klang / Pulau Indah	Logistic-heavy, container-friendly	Very large plot sizes, container access, special customs zones	Land-side transportation can be congested; suited to port-related logistics
Rawang / Kundang	Large detached on big plots	Land prices moderate for size, more heavy-dustrial estates relative to Klang	Distance from the central corridor; flood/water issues historically in spots
Sungai Buloh / Kapar / Meru	Mixed; some old heavy-industry clusters	Large land areas possible, available height in older hangar-type buildings	Check legality of building structures and land status
Puchong / Bukit Jalil / Seri Kembangan	Light/business industrial (mostly terrace)	Good visibility, strong township access	Rarely suitable for 3-tonne floors or 40-ft eaves; power is limited

Use this map qualitatively to focus your search radius. While the FactoryHub search tool lets you filter in detail, location prioritisation will narrow the number of candidates faster than any spec filter.

When is it worth upgrading vs. selecting a different building?

One question any serious buyer or tenant must answer early is whether certain specs are so low that the building is effectively unusable for your operation. A useful rule of thumb: if the per-square-foot rental or purchase price is 20–30% lower than comparable, technically compliant stock, calculate what you will spend on retrofit. If the upgrade of slab and power supply exceeds the difference in transaction price, choose the technically compliant building.

But useful building specifications are not always fully visible in a viewing. A 25-year-old factory may have a very thick slab because pile foundations were over-designed, or a relatively modern building may have a slab designed for light storage only. Never make assumptions purely from age or appearance.

Viewing and offer process for high-spec factories

Industrial property purchases in Malaysia involve a standard set of steps. Knowing them before you start can help you plan your technical due diligence.

1. Initial search and shortlist, using the spec filter, identify the 5-10 candidates that meet your broad brief.
2. Enquiry and information request, obtain floor plans, the site plan, and any existing technical reports (geotechnical, structural, M&E as-built drawings).
3. Site visits, bring your operations manager/engineer where possible. Take complete photos and notes on each spec vertical.
4. Technical due diligence, engage a qualified engineer to verify the four columns on the shortlist you are serious about. Check planning, title deed restrictions (if any), local zoning and FSB requirements.
5. Formal offer / RFP, if it is a lease, you may be competing with other parties for the same property. Have your documentation (company profile, bank references for lease, proof of funds for purchase) ready so your offer can be processed as fast as possible when a suitable building comes up.
6. Legal and surveyors, the Sales and Purchase Agreement (SPA) or Tenancy Agreement must include the spec confirmation and an explicit schedule of what you have relied upon (capacity, height, floor loading) as a condition of the transaction. This protects you in the event that specifications are later found to be misstated.

Documents you need from the start

Having these ready improves the speed of your search, especially in a competitive market in 2026:

Document	Why It Matters
Company profile and audited accounts (for purchase or long lease)	Proof you can fund the transaction
List of machinery with kW/A rating and physical footprint	Enables agent/landlord to quickly match against spec
Brief specification sheet (use the 4-column grid in this article)	Sets a technical floor for every candidate
Electrical load study or preliminary power requirement letter	Clarifies whether upgrades to building supply are needed
Bank letter of undertaking / credit (for leases), financial statements (for purchase)	Makes your offer credible enough to be taken to the property owner

This preparation saves time: listing a realistic technical brief with your power requirement, your desired eaves height, and your floor-loading needs means the agent co-broking your brief will not come back with a standard terrace factory that is below spec. Their incentives change from "offer whatever we have" to "find exactly what you need" if your brief is documented and your financing is clearly in place.

Key Takeaways

• Power (amperage), ceiling height, floor loading and land area decide fit far more than price per sqft.
• 3 acres ≈ 130,680 sqft; 40 ft ≈ 12.2 m; 3 tonne/m² ≈ 29.4 kN/m².
• Confirm the approved TNB load and floor loading in writing, they are the most commonly mis-stated specs.
• Verify at the lowest eaves/truss, not the advertised roof peak; and ask for point-load data before committing to high racking or heavy machinery.
• Conduct a site inspection checklist that covers structure, yard, power, and regulatory compliance.
• Search by specification, not just location, and let a single contact co-broke the hard briefs.

Frequently Asked Questions

How much power does a heavy factory need in Malaysia?
It depends on the machinery, but heavy users commonly need 1000A to 2000A or more of 415V three-phase TNB supply. Always confirm the current approved load, because upgrading after move-in can take months and may be subject to network capacity in the area.

What is 3 tonne per square metre floor loading in kN?
About 29.4 kN/m². It is the floor grade heavy machinery, high racking and forklift traffic typically need, well above a standard light-duty slab of 1 to 1.5 tonne/m². Point loads (e.g., a single machine foot or rack leg) may require evaluation against the slab design.

How many square feet is 3 acres of industrial land?
About 130,680 sqft, since one acre is 43,560 sqft. Detached factories and industrial land of 3 acres or more suit manufacturers needing yard space, trailer access and expansion room.

Can I search factories by ceiling height and power on FactoryHub?
Yes. You can shortlist by built-up and land area, power, ceiling height, floor loading and tenure. For requirements that the live listings do not cover, our team co-brokes the brief across the market and reverts with matched units.

Which areas in Selangor have high-power, high-spec factories?
Shah Alam, Klang, Port Klang, Rawang, Sungai Buloh and the Kapar–Meru belt carry most of the detached, high-amperage, crane-served stock, alongside newer industrial parks across the Klang Valley. In 2026, newer releases in Bukit Raja, Kapar, Bestari Jaya and the major new corridors in the south also offer increased purpose-built availability.

What should I do if the building I like has lower power or lower floor loading than I need?
Ask the landlord/owner what can be provided at their cost. Sometimes the approved supply can be upgraded, and may be already lodged with TNB. If the building does not have the structural depth to take a slab upgrade, this is rarely viable, and you should move to another candidate rather than risk foundation failure.

Does FactoryHub charge buyers or tenants for the co-broking service?
No, the fee to our dedicated support team is paid by the selling or leasing party, as is standard in Malaysian industrial property. Our focus is a quick, accurate solution for your technical search because that is the most efficient way to close a deal for the property owner.

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• Search Factories by Power Supply, Ceiling Height & Floor Loading