- Unit 9, Millside Industrial Estate, Southmill Rd, Bishop's Stortford CM23 3DP, United Kingdom
- +44 012 7937 1085
- [email protected]
- Mon - Fri: 7:00 - 15:00
Sleek yet sturdy single-glazed 25-DF aluminium door frame, designed to accommodate doors up to 44mm thick or 54mm rebated doors. Suitable for frameless glass, framed glass, and timber doors, this versatile frame offers both durability and ease of installation.
Expertly mitre cut to bespoke sizes, the 25-DF aluminium door frame profile includes pre-drilled and counter-sunk holes at the head, internal locating mitre brackets, and an aluminium fixing plate for the bottom of the door legs. The frame also features a pre-inserted Q-Lon acoustic seal for sound insulation and a convenient clip-in section at the top for easier ceiling installation. It is supplied with a batwing seal for snug installation of the door and enhanced sound protection.
We provide a custom milling service for hinges and strike plates to meet customer specifications. Compatible with floor springs and all other 25mm aluminium frame system components, this aluminium door frame can be cut to a maximum length of 3000mm.
Available in RAL 9005, 9010, 9006, 7016. For bespoke colours, please get in touch (POA).




This 25-DF aluminium door frame profile is a sleek, robust solution engineered to accommodate single-glazed timber or glass doors up to 44mm thick, as well as 54mm rebated doors. Designed for compatibility with frameless glass, framed glass, and timber doors, this aluminium frame combines architectural elegance with practical durability for a wide range of interior applications.
Each aluminium door frame is mitre-cut to bespoke sizes and supplied with pre-drilled, counter-sunk holes at the head, internal mitre brackets for alignment, and a secure aluminium fixing plate at the base of the door legs. These precision elements ensure fast, accurate installation and a professional finish.
The frame comes pre-fitted with a Q-Lon acoustic seal to improve sound insulation, while an included batwing seal enhances the acoustic performance and tightness around the door. A smart clip-in head section simplifies installation into ceiling structures.
Tailored hinge and strike plate milling services are available on request, allowing complete configuration flexibility. This aluminium door frame profile is also fully compatible with all components in the 25mm aluminium system – including 25-deflection, 25-deep, 25-2P, and 25-1P – and with standard floor spring mechanisms.
Cut to size – maximum length: 3000mm
Available RAL colours: 9005 (Black), 9010 (White), 9006 (Silver), 7016 (Anthracite)
Custom colours available on request (POA)
Suitable for 44mm thick or 54mm rebated doors (glass or timber)
Expertly mitre-cut with precision-drilled and counter-sunk holes
Integrated Q-Lon and batwing acoustic seals for enhanced sound protection
Clip-in head section for easier ceiling installation
Compatible with floor springs and 25mm aluminium partition profiles
Custom milling available for hinges and strike plates
The 25-DF aluminium door frame is the ideal choice for architects, specifiers, and installers seeking a modern, high-performance frame that delivers seamless integration, excellent acoustics, and a clean architectural appearance.
We invite you to view our interactive, online PDF brochure, where you can browse through our entire collection of systems.
GET YOUR CATALOGUEWe are experts in manufacturing of aluminum products for glazed partitions, harnessing a wealth of experience. Our commitment to excellence ensures that we consistently meet our clients’ high expectations, delivering superior quality within the agreed timeframe and budget.
Thomas Evans –
APS door frames are clearly designed with installers in mind. The 25mm frame integrates smoothly with the rest of the partition system and allows proper adjustment during install. Floor springs, deflection heads, and wall channels all work together without clashes. Acoustic seals are a big plus on meeting rooms. Easy to standardise across multi-floor projects.
Harry Williams –
i used this door frame for a glass door between my kitchen and living room. ordered it cut to size with hinge milling. everything lined up surprisingly well, door hangs straight and seals nicely. it’s definitely a professional system but with some patience it’s manageable for diy. having the seals already fitted helped a lot.
Amelia Ward –
we’ve installed these door frames in retail and showroom partitions. frames come ready to go, mitres are clean, hinge prep is accurate. once combined with the rest of the aps 25mm profiles the whole door area feels solid. clip-in head detail is a nice touch, makes ceiling install quicker. no real issues on site.
Leo Shaw –
From a glazing perspective, this is a solid door frame solution. Glass doors up to 44mm fit cleanly, rebates are accurate, and the frame holds tolerance well over height. Used together with standard 25mm U channels and 25-Deep sections, everything connected without modification. Not a standalone product, but a reliable system component.