300 Series Fiberglass Tilt and Turn Windows
European-style operation. Fiberglass strength. Built for projects where ventilation, comfort, and performance matter.
Two Opening Styles. One High-Performance Fiberglass Window.
Inline Fiberglass 300 Series tilt and turn windows give you two opening options in one window. Tilt the sash inward from the top for secure ventilation, or swing the sash inward for full access, easier cleaning, and possible egress applications depending on window size, configuration, and local code requirements.
Designed with durable fiberglass frames, double or triple pane glass options, and clean modern sightlines, the 300 Series is a strong fit for custom homes, renovations, multi-unit projects, and high-performance building designs.
A Window for Ventilation, Access, and Clean Design
The 300 Series is designed for buyers who want more than a standard window style. Its tilt and turn operation gives homeowners, architects, and builders more control over airflow, maintenance, and design flexibility.
Best fit for:
- Custom residential homes
- Modern renovations
- Multi-unit residential projects
- Commercial and institutional spaces
- Energy-efficient and performance-focused building projects
- Rooms where secure ventilation and easy cleaning matter
300 Series Fiberglass Tilt and Turn Windows Core benefits
Designed to provide flexible operation, energy-efficient performance, and the strength of fiberglass construction, the 300 Series combines modern functionality with clean architectural design for a wide range of residential and commercial applications.
Flexible Ventilation
Tilt inward from the top for controlled ventilation and everyday comfort.
Full Inward Opening
Swing inward for easy access, cleaning, and potential egress.
Fiberglass Frame Strength
Built for long-term dimensional stability and structural performance.
Energy-Focused Options
Available with double or triple pane glass depending on project needs.
Clean Appearance
A strong fit for modern, high-performance, and design-led projects.
Custom Finish Options
Choose standard or custom colours to match the project vision.
Built with Product-Specific Performance in Mind
The 300 Series combines fiberglass framing, premium operating hardware, advanced sealing, and flexible glazing capacity to support demanding window projects.
Specifier note: Certification, test data, and performance requirements can vary by configuration. Contact Inline Fiberglass to confirm the right documentation for your project.
Performance and construction highlights:
- Dual-action SIEGENIA hardware for tilt and turn operation
- 60mm / 2-3/8" fiberglass frame depth
- 2.5mm / 0.100" nominal wall thickness
- Dual bulb Santoprene gasket seals
- Pressure-equalizing exterior header gap
- Glazing pocket from 22mm / 7/8" to 38mm / 1-1/2"
- AAMA 101/I.S.2 rating: DA C60 for operable casement/hopper configuration
- AAMA 101/I.S.2 rating: FHC 65 for fixed lite configuration
- CSA A440 ratings: A3, B7, C5 for casement/hopper; B7, C4 (fixed)
Where the 300 Series
Works Best
From custom homes and renovations to specification-led projects, the 300 Series supports a wide range of residential, commercial, and high-performance applications.
For Homeowners
The 300 Series is a strong choice when you want a window that feels premium, performs well, and is easier to use day to day. The tilt function allows fresh air without fully opening the sash. The turn function makes cleaning the exterior glass easier from inside the home.
Good fit for:
- Bedrooms
- Living rooms
- Home offices
- Upper floors
- Custom homes
- Energy-efficiency upgrades
For Architects and Specifiers
The 300 Series provides a tilt and turn fiberglass window solution with available technical documentation, performance data, and support for projects requiring inward operation, secure ventilation, and fiberglass durability.
Useful for:
- High-performance projects
- Multi-unit buildings
- Commercial interiors
- Projects needing double or triple pane glass options
- Energy-efficiency upgrades
For Builders and Contractors
Builders can offer a versatile fiberglass window solution with strong performance, clean finishes, and flexible operation for custom builds and renovations.
Good fit for:
- Custom home builds
- Premium renovations
- Builder-led window packages
- Projects requiring colour coordination
- Plans needing technical documentation before ordering
How Tilt and Turn Windows Work
From custom homes and renovations to specification-led projects, the 300 Series supports a wide range of residential, commercial, and high-performance applications.
Tilt Mode
The top of the sash tilts inward. This allows controlled ventilation while keeping the opening smaller than a fully open window.
Best for:
- Everyday airflow
- Bedrooms and Bathrooms
- Upper-floor ventilation
- Cooler seasons when full opening is not needed
Turn Mode
The sash swings inward from the side. This creates a wider opening for access, cleaning, and stronger ventilation.
Best for:
- Cleaning exterior glass from indoors
- Full room airing
- Possible egress use where size, configuration, installation, and code requirements allow
- Projects where inward operation is preferred
Customize the 300 Series for Your Project
The 300 Series can be tailored to suit the performance, appearance, and documentation needs of your project.
01
Glass Options
Available glass configurations may include double or triple pane options depending on project requirements. Triple glazing can help support improved comfort, lower heat transfer, and better performance in high-efficiency building envelopes.
02
Colour Options
Inline Fiberglass offers standard and custom colour options for interior and exterior finishes. Inline can do any colour. Confirm colour selection, finish requirements, and any project-specific timing considerations during the quote process.
03
Fixed Combinations
The 300 Series also includes fixed window configurations, allowing operable tilt and turn units to be paired with larger fixed glass areas while maintaining consistent sightlines, aesthetics, and overall design continuity throughout the project.
Why Choose Fiberglass for Tilt and Turn Windows?
Tilt and turn windows depend on strong frames, reliable hardware support, and stable long-term operation. Fiberglass is well suited for this because it is strong, durable, and dimensionally stable.
For the 300 Series, fiberglass helps support:
- Long-term frame stability
- Clean sightlines
- Strong hardware anchoring
- Better resistance to expansion and contraction than many common frame materials
- Better resistance to expansion and contraction than many common frame materials
- Custom finish flexibility
See the 300 Series in Real Spaces
Explore how the 300 Series is used across homes and projects where ventilation, comfort, and clean architectural design are priorities.
300 Series
Drawings and Installation Resources
Planning a project? Access available 300 Series technical documents to help with product review, specification, and installation planning.
300 Series Drawings — PDF
Download product drawings to assist with project planning, design review, and development.
300 Series Drawings — CAD
Access CAD drawings to support project design, planning, and specification development.
Installation Guide — Single Unit
Review installation information for single 300 Series units.
Installation Guide — Coupled Units
Review installation information for coupled 300 Series configurations.
For project-specific performance data, certification documentation, or glass package confirmation, contact Inline Fiberglass before final specification.
Common Questions About 300 Series Tilt and Turn 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 the 300 Series best used for?
The 300 Series is best for projects that need flexible ventilation, inward operation, easy cleaning access, and strong fiberglass frame performance. It is a good fit for custom homes, renovations, multi-unit buildings, and design-led projects.
How does a tilt and turn window open?
A tilt and turn window has two opening modes. In tilt mode, the top of the sash tilts inward for controlled ventilation. In turn mode, the sash swings inward from the side for full opening and easier cleaning.
Can the 300 Series be triple glazed?
Yes, the 300 Series can accommodate double or triple pane glass options. Project requirements, sizing, and performance goals should be reviewed with Inline Fiberglass before final selection.
Is the 300 Series available in custom colours?
Yes. Inline confirms it can do any colour. However, confirm the final colour, finish requirements, and timing with Inline during the quote process.
Can 300 Series windows be used in commercial projects?
Yes, the 300 Series may be suitable for commercial, institutional, and multi-unit projects where the operating style and performance characteristics fit the design. Contact Inline Fiberglass to confirm project-specific requirements.
Are 300 Series windows Passive House or PHIUS certified?
Inline confirmes NFRC and AAMA documentation across all products, IGMAC-certified glass units across all products, and Energy Star eligibility depending on glazing configuration. Contact Inline Fiberglass to confirm the exact certification documents for your selected 300 Series configuration.
Are drawings available?
Yes. PDF drawings, CAD drawings, and installation documents are available for the 300 Series.
How do I know if the 300 Series is right for my project?
Send Inline Fiberglass your project details, drawings, window schedule, or design goals. The team can help confirm whether the 300 Series or another fiberglass window series is the better fit.
Ready to Plan Your 300 Series Window Project?
Tell us about your project and our team will help you take the next step. Whether you are replacing windows, planning a custom home, preparing architectural drawings, or reviewing options for a commercial project, Inline Fiberglass can help you confirm the right product path.
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