MPLock Identifier
Identify your lock now!
Identify your lock now!
FUHR Multipoint Locks Measurement & Replacement Guide
Please take a few minutes to read this guide before ordering a replacement FUHR multipoint lock. It will help you gather the measurements and information you need to identify the correct lock for your door.
Most brands place their name or logo on the faceplate; FUHR’s logo is located between the latch and the deadbolt.
There are several measurements and details that are essential when replacing an existing lock or installing a new one:
1. Locking Device Type:
2. American or Euro Cylinder:
3. Face Plate Width:
4. Automatic or Manual Lock:
5. Handle to Cylinder Spacing:
6. Backset:
7. Dead Bolt Throw:
8. Handle Height:
9. Bottom Locking Position(s):
10. Top locking position(s):
11. Overall Length:
12. Replacement Options:
1. Locking Device Type
There are several locking device versions: roller, tongue, shootbolt, roundbolt, hook, or a combination of a shootbolt with other types.
Shootbolts are made for active and inactive doors. If you have double French doors, the active door is the one you normally walk through. The inactive door is usually closed but will open when the shootbolts or other types of locking devices are retracted.
2. American or Euro Cylinder
There are several types of keyed cylinders used on Fuhr multipoint and single-point locks. The shape of the cylinder and the lock body differs between American and Euro/profile styles.
CES keyed cylinders were most common on the Euro/profile type cylinders. Older CES cylinders had a round or crescent thumbturn that rotated 360 degrees; newer CES cylinders rotate 90 degrees. The cylinders are removed differently depending on the style.
3. Faceplate Width
The faceplate is the metal strip that runs along the length of the door edge. Older Fuhr locks used yellow dichromate steel with a goldish color.
The standard faceplate width was 5/8 in. (16 mm). Some doors used a wider 25/32 in. (20 mm) plate. Most current replacement locks have a stainless steel faceplate.
4. Automatic or Manual Lock
The Fuhr automatic version has a round roller located 7-1/4 in. (184.15 mm) above the handle. It is designed to hit a strike plate on the jamb so the locking devices automatically engage without lifting the handle.
The manual version is generally less problematic. After the door is closed, you lift the handle to engage the locks, then turn the thumbturn to engage the center deadbolt.
Note: The replacement lock has the roller located at 6.54 in. (166 mm), a difference of about 3/4 in. (19 mm). This difference will factor into whether you choose an automatic or manual replacement.
If you currently have an automatic lock, we recommend replacing it with a manual version. The existing roller strike plate on the door jamb can usually be left in place and does not have to be relocated.
5. Handle-to-Cylinder Spacing (PZ)
Handle spacing is measured from the center of the handle to the center of the key cylinder or thumbturn.
Fuhr multipoint locks use two different handle spacings:
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The most common is 3-5/8 in. (92 mm), which appears on about 95% of the locks we replace.
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The other, less common size is 2-3/4 in. (70 mm).
Fuhr locks seem to use only these two sizes. Some other brands use 69 mm, 72 mm, or 85 mm; however, the standard in the United States is 92 mm.
If you’re unsure what you have, you can use the MPLock Identifier tool on our site to help confirm your lock model.
MPLock Identifier - Identify your lock now!
6. Backset
The backset is the distance from the edge of the lock faceplate to the center of the handle/cylinder.
Fuhr locks mainly use 1-3/8 in. (35 mm) and 1-3/4 in. (45 mm) backsets.
When measuring with the lock still in the door, pay attention to whether the lock is set back into the door panel. Do not measure from the edge of the door; measure from the edge of the metal faceplate.
7. Deadbolt Throw
The deadbolt throw is how far the bolt extends beyond the faceplate of the lock.
The standard deadbolt throw on Fuhr locks is 3/4 in. (19 mm). Replacement locks are available with 1 in. (25.4 mm) or 1/2 in. (14 mm) throws.
We typically use the 1/2 in. bolt so that additional mortising is not required. A 1 in. (25.4 mm) throw is available on request.
8. Handle Height
Handle height is measured from the center of the handle down to the bottom of the faceplate or door edge.
Most doors have a standard 36 in. (914 mm) handle height. However, Fuhr locks have been supplied in a variety of heights.
Replacement locks can be cut at either end to adjust for these differences. The exception is doors with shootbolts, which may require modifications. Please read and understand all notes carefully before ordering any multipoint lock.
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9. Bottom Locking Position(s)
The bottom locking position is measured with the lock in the locked position, from the center of the handle to:
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the center of the roller or roundbolt, or
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the bottom of the tongue, depending on your version.
The locking devices are not located in the same place on all models and will vary by type. If you have a roller, tongue, hook, or other locking devices on your door, measure carefully.
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Roller, roundbolt, and hook versions: Measure to the center of the roller/bolt/hook.
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Tongue versions: Measure to the bottom of the tongue.
10. Top Locking Position(s)
The top locking position is also measured with the lock in the locked position, from the center of the handle to:
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the center of the roller or roundbolt, or
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the bottom of the tongue, depending on your version.
As with the bottom position, the locking devices are not located in the same place on every model and will vary by type, so careful measurement is important.
11. Overall Length
The overall length is measured from the top to the bottom of the faceplate. On most doors, the faceplate runs the full height of the door.
12. Replacement Options
There are several replacement options available—some are a perfect match, others may require minor adjustments. Depending on your carpentry skills and what you want as an end result, we have multiple solutions for your Fuhr multipoint lock.