325 Series Fixed Fiberglass Windows
The 325 Series Fixed Window is built for projects that need clean sightlines, natural light, and strong fiberglass performance without an operating sash.
Designed for Large Glass and Clean Architectural Views
For projects where fixed glass is a design priority, the 325 Series offers a clean, non-operating fiberglass window solution available in both High Profile and Low Profile frame configurations. Designed for residential, commercial, architectural, and high-performance applications, it supports unobstructed views, available double and triple pane glass options, and custom interior and exterior finishes.
Product drawings, installation documents, and technical resources are also available to support planning, specification, and project development.
Fixed Windows for Light, Views, and Long-Term Performance
The 325 Series Fixed Window is designed for spaces where ventilation is not required, but daylight, views, and thermal performance matter. Because the unit does not open, it supports a clean appearance and can be paired with operable 325 Series casement or awning windows when airflow is needed.
Best fit for:
- Living rooms, dining rooms, and bedrooms
- Stairwells and feature walls
- Contemporary home designs
- Commercial and multi-unit projects
- Fixed sidelites or picture-window layouts
- Window groupings with casement or awning units
Where the 325 Series Fixed Window Works Best
See how the 325 Series Fixed Window is used across projects that prioritize daylight, architectural design, and reliable fiberglass performance.
For Homes
Use 325 Series fixed windows when you want more daylight, a cleaner view, and a durable fiberglass frame system. They are well suited for rooms where the goal is comfort, brightness, and a stronger visual connection to the outdoors.
For Architects and Specifiers
The 325 Fixed Window gives design teams a fixed fiberglass option within the 325 Series family. Product drawings, CAD files, installation documents, and configuration-specific performance data can support early planning.
For Builders and Contractors
The 325 Series Fixed Window can support custom residential and light commercial builds where fixed glass areas need durable frames, clean finish options, and project-specific product guidance.
For Commercial Projects
For commercial and multi-unit projects, fixed fiberglass windows can help provide daylight, design consistency, and long-term frame performance. Contact Inline to confirm sizing, documentation, and configuration options for your project.
Why Choose 325 Series Fixed Fiberglass Windows?
The 325 Series Fixed Window offers a combination of fiberglass durability, design flexibility, and performance-focused glazing options for a wide range of projects.
Clean Views
Fixed windows are ideal when the view matters. With no operating sash, they help create a clear visual opening for natural light and outdoor visibility.
Strong Frame Construction
The 325 Series uses a fiberglass frame system designed for strength, dimensional stability, and long-term performance across changing temperatures.
Energy-Efficient Glass Options
Double and triple pane glass options are available, helping projects balance comfort, efficiency, sound control, and budget needs.
Custom Design Flexibility
Choose from standard or custom colour options for interior and exterior finishes. Inline can support colour matching for project-specific design needs.
Residential and Commercial Fit
The 325 Series Fixed Window can be used across home renovations, custom builds, commercial spaces, and architect-led projects.
High and Low Profile Options
High Profile and Low Profile frame configurations, giving designers and builders greater flexibility when balancing project requirements.
325 Series Fixed Windows Product Performance and Technical Details
The 325 Series Fixed Window is part of Inline’s 325 Series fiberglass window platform and is designed for projects that prioritize natural light, clean sightlines, and dependable performance.
Available with double or triple pane glass options, it supports residential, commercial, architectural, and high-performance applications, with technical drawings, CAD files, and installation documents available.
Technical Highlights:
- Fixed, non-operating fiberglass window design
- Part of Inline's 325 Series window platform
- 82.5 mm (3-1/4") frame depth
- 2.3 mm (0.090") nominal wall thickness
- AAMA 101/I.S.2 performance rating: F-HC55
- CSA A440 ratings: B7, C4
- Available with double and triple pane glass packages
- Standard and custom interior and exterior colour options available
- PDF drawings, CAD files, and installation documents available for download
Customize the 325 Series for Your Project
The 325 Series Fixed Window can be configured to support different design and performance needs.
01
Glass Options
Double and triple pane glass options are available. Inline also offers IGMAC-certified insulating glass units to support performance and durability.
02
Colour Options
Choose from standard colours or request a custom colour match. Inline’s fiberglass windows can be finished in light or dark colours for interior and exterior design needs.
03
Grilles and Design
For projects that need a more traditional or divided-lite appearance, ask Inline about available grille and accessory options.
See the 325 Fixed Window Series in Real Spaces
See how fixed fiberglass windows can support bright interiors, clean views, and modern or traditional design styles.
325 Fixed Window Series
Drawings and Installation Resources
Planning a project or preparing a specification package? Download available product documents or contact Inline for configuration-specific support.
325 Series Drawings — PDF
Download product drawings to assist with project planning, design review, and development.
325 Series Drawings — CAD
Access CAD drawings to support project design, planning, and specification development.
Installation Guide — Single Unit
Review installation information for single 325 Series units.
Installation Guide — Coupled Units
Review installation information for coupled 325 Series configurations.
Need help confirming the right fixed window configuration? Send us your project details and our team will help you find the correct product information.
Common Questions About 325 Series Fixed Window
Find clear answers to common questions about fiberglass windows, including product options, performance considerations, and how to choose the right solution for your project.
What is a fixed window?
A fixed window does not open. It is used when the main goals are natural light, views, energy performance, and clean design rather than ventilation.
Where is the 325 Series Fixed Window best used?
It is best used in areas where you want daylight and views without needing the window to open. Common uses include living rooms, stairwells, bedrooms, feature walls, commercial spaces, and window groupings.
Can 325 Series fixed windows be triple glazed?
Yes. The existing 325 Series product page states that double and triple pane glass are available. Confirm the best glass package with Inline based on your project goals.
Is the 325 Series Fixed Window available in custom colours?
Yes. Inline offers standard and custom colour options, including colour matching for project-specific needs.
Can this window be used in commercial projects?
Yes. The 325 Series Fixed Window can be considered for commercial and multi-unit applications. Contact Inline to confirm sizing, documents, and configuration-specific performance data.
Is the 325 Series Fixed Window PHIUS certified?
Yes. The 325 Series casement, awning, and fixed configurations are PHIUS certified. NFRC and AAMA apply to Inline products, and Energy Star eligibility depends on the selected glazing configuration. Contact Inline to confirm the current documentation for your exact size, glass package, and project requirements.
What is the difference between the 325 Series Fixed Window and the 400 Series Strip / Fixed Window?
The 325 Series Fixed Window is a fixed window option within the 325 Series family and can pair well with 325 casement and awning units. The 400 Series Strip / Fixed Window is better positioned for broader architectural fixed or strip-window applications.
Can I download drawings?
Yes. The current 325 Series Fixed page includes drawing downloads in PDF and CAD formats, along with single and coupled installation documents.
Can fixed windows be combined with operable windows?
Yes. Fixed windows are often paired with operable windows when a project needs both views and ventilation.
Ready to Plan Your 325 Series Fixed Window Project?
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