
Lockwood 8800 Series Size 4 Standard Floor Spring - 105 Degree Hold Open
The Lockwood 8800 Series Size 4 Floor Spring - 105 Degree Hold Open is designed for heavy-duty commercial door control in double action door systems.
This model incorporates a 105 degree hold open function, allowing doors to remain open at a wider angle for high traffic access and operational convenience.
It is commonly specified in demanding commercial environments where larger or heavier doors require controlled movement and reliable performance.
Usually ships in 3 business days
Key Features
- Size 4 floor spring for heavy commercial door applications
- 105 degree hold open functionality for wider access
- Double action operation for two-way door movement
- Adjustable closing and latching speeds
- Concealed installation within floor for clean appearance
- Compatible with glass, timber and aluminium door systems
Suitable Uses
- High traffic commercial entrances
- Shopping centres and retail environments
- Large glass pivot doors
- Office buildings and public access doors
- Applications requiring wider hold open positioning
Specifications
Dimensions
Size 4 floor spring is intended for larger and heavier doors. Refer to manufacturer specifications for exact door weight and width limits.
Frequently Asked Questions
When should I choose Size 4 over Size 3?
Size 4 is used for heavier or wider doors where additional closing force is required.
What is the benefit of 105 degree hold open?
It allows a wider door opening angle compared to 90 degree models, improving access in high traffic areas.
Is this suitable for fire doors?
Hold open units are typically not compliant for fire doors unless used with an approved release mechanism.
Additional Information
- Commonly specified for high traffic commercial environments across Australia
- 105 degree hold open improves accessibility for wide door openings
- Correct installation depth and alignment is critical for performance
- Often paired with pivot kits and cement boxes for complete installation systems
25 Year mechanical warranty
Lockwood Floor Closers Catalogue

Lockwood Floor Closers Catalogue
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.