Fitting guide · Written by locksmiths, not marketers
Digital lock for a grill door
Almost every Malaysian home has a metal grill in front of the main door — and almost every digital lock on the market is built for the main door, not the grill. Here is the honest version: what fits, what does not, and what to measure before anyone quotes you.
- Verified technicians
- Photo check before quoting
- Price in writing first
- We supply and we fit
Can you put a digital lock on a metal grill door?
Sometimes — but usually not the same lock you would put on your main door. A standard digital door lock needs a solid door leaf 35–55 mm thick to house its mortise case. A grill gate has no leaf: it is a welded frame, often with a hollow square-tube stile only 25–40 mm wide, and it sits outdoors in the rain.
In practice there are three honest outcomes. Narrow-stile grill gates with a wide enough flat tube can sometimes take a narrow-body digital lock. Most grill gates are better served by keeping a good mechanical lock on the grill and putting the digital lock on the main door behind it — that is the setup we fit most often. And some grills cannot take one at all without fabrication work we will tell you about before you pay, not after.
The three outcomes, plainly
Nobody publishes this because the answer is not a clean yes. It is the question Malaysian buyers actually ask, so here it is.
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Usually works
Digital lock on the main door, mechanical on the grill
The most common setup we fit, and the one we recommend by default. You get fingerprint and PIN entry where it matters, on a door leaf that is designed to hold the lock, out of the weather. The grill keeps a solid mechanical lock as the outer layer.
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Sometimes works
Narrow-body digital lock on the grill stile
Possible when the gate’s locking stile is a flat tube wide enough to take a narrow-body lock and the frame is rigid enough not to flex. This needs measuring — it is decided by your gate, not by the model. It also puts electronics outdoors; see the exposure warning below.
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We will say no
Round-bar, decorative or heavily flexing grills
If the stile is round bar, too narrow, or the gate racks when you pull it, a digital lock will misalign and fail — often within months. We would rather lose the sale than fit something we know will jam. We will tell you this on the photo check, free.
“But then the grill has to use a normal lock?”
This is the exact question we get asked most, so let us answer it properly. Two doors means two locks with two different jobs — that is not a compromise, it is how layered security is supposed to work.
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Outer layer · the grill
Deterrence and physical resistance
The grill’s job is to be visibly hard to get through and to survive weather. A good mechanical lock does that better, cheaper, and for longer than electronics bolted to an outdoor frame.
- No batteries to die outdoors
- Nothing to corrode in the rain
- Cheaper to replace if forced
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Inner layer · the main door
Convenience and control
The digital lock goes here — sheltered, on a proper door leaf. This is where keyless entry actually earns its money: no keys for the kids, temporary PINs for a helper or contractor, and a record of who came in.
- Fingerprint, PIN, NFC card, app or key
- Out of the sun and rain
- Mounted in a leaf built to hold it
The exposure problem we will not gloss over
Our SIRIM-tested Smartverse lock SVDLME001BK was tested to BS EN 14846:2008 and the classification is 2B40-0100. The corrosion-resistance digit in that classification is 0 — meaning no corrosion resistance was declared or tested. It is also graded 0 for fire, so it is not for a fire or smoke door.
An outdoor grill gate in the Malaysian climate is a wet, hot, salt-carrying environment. We are not going to put a lock with no declared corrosion rating on it and pretend that is fine. That is a large part of why we fit the digital lock on the sheltered main door and keep mechanical hardware on the grill.
Source: SIRIM QAS International Sdn. Bhd. test report No. 2026MA0740, 30 June 2026. Full plain-English breakdown of every digit is on the Smartverse lock series page.
Four measurements decide it
If you want to know before you contact anyone, measure these. Or send us a photo with a tape measure in frame and we will read them off for you.
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1
Locking stile width The flat face of the vertical tube where the lock would sit. Under ~40 mm and most digital bodies will not fit.
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2
Stile depth How deep that tube is front to back. This decides whether any lock case can pass through it at all.
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3
Flex / racking Pull the gate at the handle end. If it moves more than a few millimetres, an electronic bolt will bind.
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4
Shelter Does rain hit the lock position directly? If yes, mechanical on the grill is the right call.
Send a photo, get a straight answer
Message us a photo of your grill and your main door. We will tell you which of the three outcomes you are in, and what it would cost supplied and fitted — in writing, before anyone comes out. If the answer is “this one cannot take a digital lock”, we will say so.
Which of our locks are even candidates
Straight from the spec sheets. We would rather show you the short list than imply everything fits everything.
| Model | Body style | Designed for | Grill gate candidate? |
|---|---|---|---|
| SVDLAI001BK | Aluminium, narrow stile | Narrow-stile aluminium doors | Closest candidate — narrow-stile body is the right family. Subject to the four measurements and the exposure question. |
| SVDLAI002BK | Aluminium, narrow stile (variant) | Narrow-stile aluminium doors | Closest candidate — same family, second variant. Same conditions apply. |
| SVDLME001BK SIRIM tested | Semi-auto lever handle | Wooden / aluminium swing doors, 35–55 mm leaf | Main door only — needs a solid leaf for the mortise case, and corrosion is undeclared. |
| SVDLFE001BK | Full auto, motorised deadbolt | Solid swing doors | Main door only — motorised bolt needs precise, stable alignment. |
| SVDLTE001BK | Tubular handle-set | Solid swing doors | Main door only |
Being straight about a gap: none of these five is a purpose-built rim lock for a metal gate. The two aluminium narrow-stile models are the closest form factor and we are confirming exact stile limits with the manufacturer. Until that is in writing we will not publish a compatibility promise — we will measure your gate and tell you.
Questions people actually ask us
Phrased the way they arrive, because that is how they get asked.
- Asked constantly
Do I need two sets of digital lock, one at the grill and one at the wooden door?
You can, but we rarely recommend it. Two digital locks means two sets of batteries, two things to fail, and one of them sitting in the weather. The setup that works long-term is one digital lock on the sheltered main door and a solid mechanical lock on the grill.
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Can grill put digital lock or not?
Sometimes. It depends on the width and depth of the vertical tube where the lock would go, and on whether the gate flexes. Four measurements decide it — or send a photo and we will check for you.
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If I install digital lock on the main door, do I still need the grill?
That is your call, and it is a security question rather than a lock question. The grill is your outer physical barrier; a digital lock does not replace it. Most of our customers keep the grill and stop bothering to lock it every time — which is a real convenience gain, but understand you have then given up that layer.
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My condo door is fire rated and double leaf. Can I still fit a digital lock?
Not our Smartverse models on the fire door itself.
SVDLME001BKis graded 0 for fire under BS EN 14846, which means fire performance was not declared — so fitting it to a fire or smoke door can compromise the door’s certification and, in a managed building, breach your fire strategy. Ask your management for the door schedule first. We will not fit one to a fire door. -
How to unlock if the battery finish?
Every Smartverse lock we supply has a mechanical emergency key, and the M Series also takes emergency power over USB-C from a normal power bank to get you in. The lock warns you well before the batteries die. Keep the emergency key somewhere that is not inside the house.
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What if I go overseas for two months and the battery runs out?
Change the batteries before you travel and it is a non-issue — the M Series runs on 4×AA. If you are already locked out, the USB-C emergency power point on the outside panel will power the lock long enough to open it, and the mechanical key always works.
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How much including installation?
We quote supplied-and-fitted, in writing, before we start — because that is the number you actually care about. It depends on the model and what your door needs, so the photo check comes first. No deposit to get a quote.
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Can your installer do it, or is this his first time?
Fair question, and one we see asked on forums a lot. Every technician on the MyLock network is verified before they take jobs, and grill and security-door work is exactly what Malaysian locksmiths do all day. If a job needs a skill set we are not confident about, we say so rather than send someone to learn on your door.
Dalam Bahasa Melayu
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BMBoleh pasang kunci pintu digital pada pintu grill?
Kadang-kadang boleh. Kunci pintu digital biasa memerlukan pintu padu 35–55 mm untuk muatkan kes mortis. Pintu grill tiada bahagian padu itu — ia rangka besi berongga, dan ia terdedah kepada hujan. Cara yang paling selamat: kunci digital di pintu utama, kunci mekanikal yang kukuh di grill.
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BMBerapa harga kunci pintu digital termasuk pemasangan?
Kami beri harga bertulis termasuk pemasangan sebelum kerja bermula. Hantar gambar pintu anda melalui WhatsApp — kami sahkan kesesuaian dahulu, kemudian baru beri harga.
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BMKalau bateri habis, macam mana nak buka?
Setiap kunci yang kami pasang ada kunci kecemasan mekanikal. Model utama juga boleh dihidupkan semula dengan power bank melalui USB-C. Simpan kunci kecemasan di luar rumah.
中文
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ZH铁门(grill door)可以安装智能门锁吗?
有时可以。一般智能门锁需要 35–55 mm 的实心门扇来容纳锁体,而铁门是中空方管焊接的框架, 没有实心门扇,而且长期日晒雨淋。我们最常做、也最耐用的方案是: 智能锁装在里面的大门,铁门继续使用坚固的机械锁。
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ZH智能门锁在马来西亚连安装大概多少钱?
我们报的是「含安装」的价格,并且在动工前以书面确认。请先用 WhatsApp 传门的照片, 我们确认可行性后再报价。
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ZH没电了怎么开门?
我们供应的每一把锁都配机械应急钥匙;旗舰型号外面板还有 USB-C 应急供电口, 用一般行动电源即可临时供电开门。电量低时锁会提前提示。应急钥匙请放在屋外。