Lockwood 3540 Series Extended Backset Spacer
The Lockwood 3540 Series Extended Backset Spacer is designed to modify the backset configuration of Lockwood 3540 series mortice lock installations, allowing for greater flexibility when working with varying door and frame conditions.
This spacer is commonly used in commercial and industrial environments where standard backset dimensions are not suitable. It enables proper alignment between the lock body and door hardware, ensuring consistent operation and secure engagement.
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Non-Returnable Item: This product is a special order and is not returnable.
Key Features
- Designed for Lockwood 3540 Series mortice lock systems
- Extends backset to suit non standard door configurations
- Improves alignment between lock body and door hardware
- Suitable for narrow stile and specialised installations
- Supports reliable deadbolt engagement
- Durable construction for commercial and industrial use
- Maintains consistent lock performance when properly installed
Suitable Uses
- Commercial and industrial buildings
- Narrow stile hinged door applications
- Custom door and frame configurations
- Sliding door locking systems
- Retrofit installations requiring backset adjustment
- Institutional and public buildings
Specifications
Item Code Family
Frequently Asked Questions
What is an extended backset spacer used for?
It is used to increase the distance between the edge of the door and the lock centre, allowing correct installation in non standard door setups.
Does this include the mortice lock?
No, this is a spacer component only and must be used with a compatible Lockwood 3540 Series mortice lock.
Can this be used on all doors?
It is intended for specific applications where the standard backset is not suitable. Correct selection is important for proper function.
Additional Information
- Commonly used in Australian commercial projects where door preparation differs from standard dimensions.
- Allows installers to adapt existing door setups without replacing the entire lock.
- Incorrect spacer selection can lead to poor alignment and reduced lock performance.
- Best installed by experienced locksmiths to ensure correct positioning and operation.
Lockwood branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 25 years
- Electrical and electronic components: 2 years (excluding batteries)
Lockwood Warranty
Lockwood branded products are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty periods vary by product type, with separate cover for mechanical components, electrical and electronic parts, keys, and finishes.
The summary below sets out the standard warranty structure. All warranty claims are handled by Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries. Full terms and exclusions are set out in the official Lockwood warranty document linked at the base of this page.
Warranty Summary
Finish Coverage Guide
- Everbrass finishes: up to 25 years against corrosion, tarnishing and discolouration.
- Stainless steel, polished stainless steel, chrome plating and anodised finishes: typically up to 10 years.
- PVD and VIVID finishes: typically up to 10 years.
- Symmetry range finishes: typically up to 5 years.
- Decorative finishes (Antique Copper, Architectural Bronze, Oil Rubbed Bronze, Aged Brass, Polished Brass, Satin Brass and related variants): typically up to 2 years against corrosion.
- Unlacquered brass finishes naturally age and change appearance over time. This is not considered a defect.
- Tea staining of stainless steel is not covered where the required cleaning and maintenance have not been followed.
How to Make a Claim
- Contact Terry's Tradies Pty Ltd and its associated websites, trading names, and subsidiaries with your proof of original purchase.
- Keep the product securely packed and clearly identified, ready for assessment.
- Where a claim is escalated to the manufacturer, ASSA ABLOY may issue a case number before goods are returned.
- ASSA ABLOY assesses the claim and determines repair, replacement with the same or closest equivalent product, or refund of the purchase price.
Exclusions
- Normal wear and tear.
- Misuse, abuse, accidental damage or use outside published specifications.
- Improper maintenance or failure to follow care instructions.
- Unauthorised modification, repair or use of non-genuine parts.
- Exposure to corrosive environments including coastal air, salt spray, chemicals or pollution.
- Removal, refitment or associated labour charges.
- Products not originally sold in Australia through authorised channels.
These manufacturer warranties apply in addition to your rights under the Australian Consumer Law. Our goods come with guarantees that cannot be excluded under the ACL. You are entitled to a replacement or refund for a major failure and to compensation for any other reasonably foreseeable loss or damage. Where a failure does not amount to a major failure, you are entitled to have the goods repaired or replaced.
