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Gridlock C Series Latch 3 Deadbolts Single Spindle Multipoint Door Lock

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Alternative products available

GRIDLOCK See Alternative

GRIDLOCK2 See Alternative

This part is discontinued and is no longer available. However, for part GRIDLOCK and GRIDLOCK2: UM3D5085 is a potential alternative. Please note that this alternative has a 50mm backset and 85mm centres, some alterations will have to be... read more
Product Information

This part is discontinued and is no longer available.

However, for part GRIDLOCK and GRIDLOCK2: UM3D5085 is a potential alternative. Please note that this alternative has a 50mm backset and 85mm centres, some alterations will have to be made to fit but this is the closest alternative available.

Gridlock multipoint lock featuring 3 deadbolts, 22mm U-rail faceplate and a single spindle.

Commonly used on timber doors.

Operation: Lift Lever

To lock the door

1. Lift the handle upwards to engage the locking points.

2. Lock the locking points and main deadbolt (if present) by turning the key.

To unlock the door

1. Unlock the system by turning the key.

2. Push the handle downwards to disengage the locking points and retract the latch.

Latch Reversal: Insert a screwdriver into the screw in the back of lockcase and push the latch clear of the faceplate. Twist the latch and release to reverse.

You may find this lock used as an UPVC door lock, an aluminium door lock, a timber multipoint door lock or a composite door lock .

Product Specification
Product FAQs

How can I tell who the manufacturer is of my multipoint lock?

Check down the faceplate and look for a brand name or logo to identify the manufacturer.


How do I find out the operation of my multipoint door lock?

  • 1. If you only use the key to unlock all of the locking points then the operation is called Key Wind.
  • 2. If you lift the handle and turn the key to lock then the operation is called Lift Lever.
  • 3. If from the outside you unlock with the key, pull handle down to disengage the locking points and turn the key to open the door then this operation is called Nightlatch or Split Spindle.
  • 4. If lifting the handle fully locks the door without the use of a key then this operation is called Auto Locking.

How do I measure my multipoint door lock?

Always measure in millimetres.

  • 1. Backset – Measure the distance from the edge of the faceplate back to where the key goes into the door cylinder.
  • 2. Centres – Measure the distance from centre of handle spindle down to where the key goes into the door cylinder.
  • 3. Locking points – Measure the distance from centre of the locking point to the centre of handle spindle then repeat for other locking points.
  • 4. Faceplate – Measure the distance across the width of the face and full length of the faceplate.
  • 5. Gearbox – Measure the height and depth of the gearbox.

How do I know if my multipoint door lock is left or right handed?

99% of multipoint door locks are field reversible, instructions for which are under product information. For those models which are handed please refer to the handing chart to determine which hand you require.


Do you have a gearbox for this multipoint lock?

Yes our part number is GRIDLOCKCASE45.

All product options

All product options
Product Code Backset Faceplate Operation Spindle DiscountPriceStockQuantity
GRIDLOCK
45mm
U-Rail 22mm
Lift Lever
Single 8mm
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GRIDLOCK2
45mm
U-Rail 22mm
Lift Lever
Double 8mm
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