800 Series Horizontal Slider Fiberglass Windows
Smooth sliding operation. Strong fiberglass construction. Built for wide openings where space matters.
Fiberglass Sliding Windows Built for Smooth Operation
Inline Fiberglass 800 Series horizontal slider windows are designed for projects that need practical ventilation, clean sightlines, and reliable long-term performance. The sliding sash moves horizontally, making this series a strong fit for rooms where outward or inward-swinging windows are not ideal.
Built with rigid pultruded fiberglass frames, the 800 Series helps reduce the frame deflection that can affect wide sliding windows. The result is a durable, energy-efficient slider window system designed for homes, multi-unit buildings, commercial spaces, and custom projects.
Where the 800 Series Works Best
The 800 Series is a practical choice when you want ventilation without a sash projecting inward or outward.
It is especially useful for:
- Bedrooms and Basements
- Multi-unit residential buildings
- Tight exterior spaces
- Walkways, decks, and patios
- Commercial or institutional projects
- Wide openings where structural stability matters
- Projects needing custom colour and glass options
Because the sash slides horizontally, the 800 Series is easy to operate in spaces where a casement, awning, or tilt-and-turn window may not be the best fit.
Built to Improve What Standard Slider Windows Often Struggle With
Horizontal slider windows are a practical solution for many projects, and the 800 Series is built to deliver dependable long-term performance. With rigid pultruded fiberglass frames and an 82.5 mm (3-1/4″) frame depth, it helps support smooth operation, structural stability, and clean sightlines.
AAMA H-R 85 Rated
Tested for demanding structural performance in a horizontal rolling window configuration.
CSA A440 Performance Ratings
Rated A3, B7, and C5 for air tightness, water penetration resistance, and structural performance.
Pressure Equalized Rain Screen
The frame design helps manage water infiltration and directs incidental moisture toward the exterior.
Smooth Sliding Hardware
Molded acetal riding blocks and extruded PVC bumpers support consistent sash movement.
Heavy-Duty Locking Hardware
Available with heavy-duty single or dual die-cast cam locks that engage into structural keepers.
IGMAC-Certified Glass
Available with IGMAC-certified double pane insulating glass units to suit project requirements.
Why Choose Fiberglass Horizontal Slider Windows?
The 325 Series combines fiberglass construction, premium hardware, energy-efficient glass options, and flexible finish choices for a wide range of residential and commercial projects.
Space-Saving Operation
The sash slides side-to-side instead of swinging open. That makes the 800 Series a smart option near patios, pathways, landscaping, furniture, or interior spaces where clearance is limited.
Stronger Frame Stability
Fiberglass is a strong, dimensionally stable material. For wider slider windows, that matters. The 800 Series is designed to help reduce deflection, support smooth operation, and maintain a better seal over time.
Better Comfort and Energy Performance
The 800 Series supports double pane glass packages, allowing homeowners, builders, and specifiers to choose a glass configuration that fits the project’s energy goals.
Clean Sightlines and Practical Ventilation
Slider windows provide straightforward ventilation with a simple, familiar operating style. They are ideal for rooms that need fresh air, natural light, and easy daily use.
Custom Colours and Finish Options
Inline offers a broad range of interior and exterior colour choices, including custom colour matching. The existing 800 Series page also notes that Inline is an AAMA certified paint applicator.
Built for Long-Term Value
Durability of pultruded fiberglass with proven hardware and flexible glass options to create a window system designed for dependable performance, low maintenance, and lasting value
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 and Colour Options
Choose from double pane glass packages and a range of standard or custom colour options.
02
Hardware and Locking Options
Single or dual cam lock options are available depending on size, configuration, and requirements.
03
Grilles and Design Details
Ask about grille styles and other design options to support the architectural look of the project.
Product Support for Architects, Builders, and Commercial Teams
The 800 Series is built for more than basic residential replacement. It can support projects where sliding operation, fiberglass frame strength, thermal performance, and technical documentation all matter.
Use this series when your project needs:
- A horizontal sliding window format
- Strong tested performance and fiberglass frame stability
- Double pane glass options
- Custom sizing or project-fit guidance
- Product drawings or technical support
See the 800 Series in Real Spaces
See how the 800 Series windows look in finished rooms, bedrooms, and modern spaces.
800 Series
Drawings and Installation Resources
Planning a project? Access available 300 Series technical documents to help with product review, specification, and installation planning.
800 Series Drawings — PDF
Download product drawings to assist with project planning, design review, and development.
800 Series Drawings — CAD
Access CAD drawings to support project design, planning, and specification development.
Installation Guide
Review installation information for single 800 Series units.
For project-specific performance data, certification documentation, or glass package confirmation, contact Inline Fiberglass before final specification.
Common Questions About 800 Series Horizontal Slider Windows
Find clear answers to common questions about fiberglass windows, including product options, performance considerations, and how to choose the right solution for your project.
Where is the 800 Series best used?
The 800 Series is best used where you want a space-saving window that slides open horizontally. Common applications include bedrooms, basements, multi-unit buildings, walkways, patios, and other areas where a swinging sash may not be ideal.
Are 800 Series slider windows energy efficient?
Yes, the 800 Series is designed as a high-performance fiberglass window system and can be configured with double or triple pane glass options. The right glass package depends on your project goals, location, and performance requirements.
Is the 800 Series available in custom colours?
Yes. Inline offers a wide range of colour choices, including custom colour matching for specific project needs. Inline also offers AAMA certified paint application.
Can 800 Series horizontal slider windows be used in commercial projects?
Yes, the 800 Series can be considered for residential, multi-unit, and commercial applications where a horizontal slider format is the right fit. Commercial teams should request product specs and confirm performance requirements with Inline before final selection.
What performance ratings apply to the 800 Series?
Project source material lists the 800 Series as achieving an AAMA H-R 85 rating and CSA A440 ratings of A3, B7, C5. Confirm current test documents and configuration-specific data with Inline before specification.
Does Inline provide drawings or installation information?
Yes. This 800 Series page links to drawings in PDF format, CAD drawings, and installation information.
Ready to Plan Your 800 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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