Glass, Colours, Grilles & Hardware Options for Fiberglass Windows

Inline Fiberglass offers a range of glass packages, colours, grilles, trim, screens, and hardware options to help homeowners, architects, builders, and commercial teams choose the right finish for the job.

Your windows should fit the way your project looks, performs, and functions.

From semi-standard dark finishes such as Tricorn Black and Iron Ore to custom colours, double or triple pane glass, Low-E coating options, and grille/SDL options confirmed during product selection, our team can help you understand which options make sense for your window series, building style, and performance goals.

Choose the Right Options for Your Project

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.

Glass Packages

Choose glass based on comfort, efficiency, orientation, and project requirements. Inline can offer double pane and triple pane glass, with Low-E coating options including 180, 272, 366, and i89. Confirm the right glass package for the selected window series and performance target.

Best for: energy-conscious homes, Passive House and high-performance projects, commercial buildings, and comfort-focused renovations.

Colours & Finishes

Inline’s standard colour is White. Semi-standard colour options include Commercial Brown, Almond, Brownstone, Slate, Tricorn Black, and Iron Ore. Anything else is custom, and Inline has confirmed it can do any colour. Confirm colour selection, finish, and any project-specific requirements during quoting.

Best for: modern homes, dark exterior palettes, custom builds, architectural projects, and colour-matched renovations.

Grilles & SDL Bars

Grilles and simulated divided lites help create a traditional, heritage, or more detailed architectural appearance without needing separate individual glass panes.

Best for: traditional homes, heritage-style projects, custom elevations, and design-led residential work.

Hardware & Accessories

Hardware, screens, extenders, trim, casing, jamb extensions, and other accessories help complete the finished window system. Availability can vary by series, size, and configuration.

Best for: projects where appearance, fit, operation, and finishing details matter.

Custom Colours, Including Black and Dark Finishes

Fiberglass gives design teams flexibility for colour selection, with standard colours and additional custom colours available by request.

This is especially useful when the exterior design calls for a specific architectural colour, including darker semi-standard options such as Tricorn Black or Iron Ore.

Colour samples are available for showroom review. Visitors can use the showroom visit as a secondary step after exploring colour options or starting a quote request.

Inline offers standard colour choices and custom colour matching for projects that need a specific architectural look. Popular finish directions may include:

White standard finish
Commercial Brown semi-standard finish
Almond semi-standard finish
Brownstone semi-standard finish
Slate semi-standard finish
Tricorn Black semi-standard finish
Iron Ore semi-standard finish
Custom colours available by request

Custom Window Grilles and SDL Bars

Grilles can change the entire character of a window. They can make a new window feel more traditional, more architectural, or more consistent with an existing home.

SDL bars are a strong fit for:

Heritage-style homes
Traditional elevations
Farmhouse-style projects
Custom residential builds
Architectural projects with repeated window patterns
Projects where exterior detail matters

For cleaner modern projects, many buyers choose no grilles at all. For traditional homes, SDLs can help the new windows feel more appropriate to the design.

Hardware, Screens, Trim, and Finishing Details

The frame colour and glass package are only part of the decision. The finishing details matter too.

Depending on the window series and project requirements, available options may include:

Screen options
Exterior trim profiles
Brickmould-style trim
J-channels
Interior casing
Jamb extensions
Project-specific accessory details

These options help the finished window work with the wall assembly, siding, interior drywall, exterior style, and daily use.

Important: Hardware, grille, and accessory availability can vary by product series. Inline should confirm the right options during the quote or product-selection process.

Premium Options for a More Complete Window System

Window options are not just decorative. The right glass, colour, grille, and hardware choices affect comfort, appearance, maintenance, energy performance, and long-term satisfaction.

Inline Fiberglass focuses on fiberglass window and door systems. That means our options are designed around the strengths of fiberglass: dimensional stability, paintability, durability, and long-term performance.

Whether you are matching a modern black exterior, preserving a heritage divided-lite look, choosing a high-performance glass package, or coordinating trim details, Inline can help you narrow the choices before you Request a Free Quote.

Comfort, Efficiency, and Project Performance

The glass package is one of the most important decisions in a fiberglass window project. It affects insulation, solar gain, visible light, condensation resistance, and overall comfort.

Inline fiberglass windows can support different insulated glass unit configurations depending on the series and project need. Options may include:

For homeowners, this means better comfort and energy-conscious performance. For architects and builders, it means clearer product conversations around U-value, solar heat gain, visible transmittance, and documentation.

Factory-Applied Finishes Built for Long-Term Use

A window finish needs to do more than look good on day one. It needs to hold up against sunlight, weather, handling, and daily use.
Inline’s finish process includes applied finishes for fiberglass frames. AAMA-related coating language should only be used where it refers to applied finishes.

For design-driven projects, this matters. A poorly chosen colour or finish can weaken the look of the entire building. The right finish can make the windows feel intentional, integrated, and premium.

Design Tip: For dark window frames, confirm the exterior colour, interior colour, hardware, screens, and trim together. These details should be selected as a system, not as separate afterthoughts.

Not Sure Which Options You Need?

Start with the purpose of the project.

If your priority is energy performance

Ask about double pane or triple pane glass, Low-E coating options including 180, 272, 366, and i89, and product-specific performance data.

If your priority is design

Start with colour, grille style, sightlines, and interior/exterior finish coordination.

If your priority is matching an existing home

Bring photos of the current windows, exterior finishes, trim, and interior wall details. Inline can help you compare colour, grille, casing, and accessory options.

If your priority is a commercial or architectural specification

Ask for product documentation, glass options, finish details, drawings, and certification information for the specific window series being considered.

Explore Fiberglass Windows, Doors, and
High-Performance Products

Choose the product path that fits your project. Inline offers fiberglass window and door products for residential, commercial, architectural, and dealer-supported applications.

For Homeowners

Choose colours, glass, screens, and grilles that support comfort, curb appeal, and long-term value.

For Architects & Specifiers

Review finish options, glass packages, SDL details, and documentation before finalizing a specification.

For Builders & Contractors

Confirm series availability, trim details, rough opening requirements, finish choices, and lead-time considerations before ordering.

For Commercial Projects

Coordinate glass performance, frame colour, maintenance expectations, and documentation with the broader building envelope plan.

Common Questions About Window Options

Find clear answers to common questions about fiberglass windows product options.

Can Inline match custom fiberglass window colours?

Yes. Inline can do any colour. White is the standard colour. Semi-standard colours include Commercial Brown, Almond, Brownstone, Slate, Tricorn Black, and Iron Ore. Anything else is custom and should be confirmed during quote review.

Are black fiberglass windows available?

Yes. Tricorn Black and Iron Ore are listed as semi-standard colour options. Other black or dark colour requests may be handled as custom colours and should be confirmed during quote review.

What glass options are available?

Inline can offer double pane and triple pane glass, with Low-E coating options including 180, 272, 366, and i89. Ask Inline for product-specific glass and performance details before finalizing your selection.

What are SDL bars?

SDL stands for simulated divided lite. SDL bars are applied to create the look of individual panes while allowing the window to use a continuous insulated glass unit.

Are grilles available for modern and traditional homes?

Yes. Some projects use grilles or SDLs for a traditional or heritage look. Others use clean glass with no grilles for a more modern appearance. The right choice depends on the home style and design goal.

Can I choose different colours inside and outside?

Split-finish options may be available for projects that need one exterior colour and a different interior finish. This is useful when the outside calls for a bold colour while the inside needs to match interior trim or décor.

Are all hardware options available on every window series?

No. Hardware and accessory options can vary by window series, size, and configuration. Contact Inline to confirm available hardware during product selection.

Should I choose double pane or triple pane glass?

It depends on your comfort goals, budget, building design, climate, and performance requirements. Inline can offer both double pane and triple pane glass. The right choice should be confirmed based on the selected window series, Low-E coating option, and project needs.

Ready to Choose Your Window Options?

Tell Inline about your project, and the team will help you review the options that fit your window series, design goals, and performance needs.