Fixed Semicircular Window

Made-to-measure semicircular fixed glazing

Fixed-glazed half-round window

A fixed-glazed half-round window in pine or oak, with colour choice, insulated glazing and named glazing-bar patterns for a considered architectural composition.

Window type

Semicircular fixed glazing

Operation

Non-opening

Timber species

Pine or oak

Manufacture

Made to measure

01

Everyday use and operation

This half-round window is fixed glazed and cannot be opened. Day-to-day, there is therefore no change between open and closed positions. Its role in your design is a permanently closed glass area with a distinctive semicircular outline. Where ventilation or an opening access point is required on the same side of the building, provide that function through a separate product selected for it. The half-round window remains fixed glazing in its own right. This defined purpose is particularly useful when a project contains elements with different jobs: the curved window provides the visual feature, while another product can supply the movement or opening you need.

As the window does not open, consider everyday access to its glass surfaces when planning the project. This is not an extra product feature, but a practical matter for the installation location. For example, where it sits above another window or in a hard-to-reach position, consider in advance how accessible surfaces can be reached in your particular building. This may be assessed differently in an easily accessible location. The important point is not to confuse fixed glazing with an operable window, and to plan its intended use accordingly.

The bar pattern affects how the window is perceived each day without changing its fixed-glazed function. A bar-free version highlights the continuous semicircular area and crisp outline. Horizontal lines can echo cornices, frame lines or other level features, while vertical lines may continue an existing axis. Combining both directions divides the surface more strongly. Consider neighbouring openings and recurring façade lines, not just the individual window, when making your choice. This helps you decide whether the half-round window should blend in quietly or stand out as a distinct design feature.

02

Construction, component dimensions and technical details

Key technical details help with comparison and configuration preparation. The outer frame is specified as 105 × 57 mm; these values apply only to the outer frame, not to the overall width or height of the made-to-measure window. Installation holes are specified at 14 mm. The half-round window carries CE marking and comes with a five-year commercial warranty. As it is made to measure, record your required unit dimensions and details of the intended opening separately from the outer-frame component dimensions. This keeps clear which figures describe the complete window and which refer only to individual components.

Choose double- or triple-glazed insulated glass. Both versions include a heat-reflective coating, a warm-edge spacer (CHR) and argon fill. Silicone is used for the glass seals. Pine and oak are available for the frame. In your enquiry, state the required timber, colour, glazing and bar design separately. This describes the requested half-round window clearly and distinguishes it from the intended opening dimensions and fixed technical component data.

The semicircular construction is permanently fixed glazed. It therefore remains a non-opening window even when bars are selected. Take particular care to use the complete option name, as the range distinguishes between glazing bars and bars expressly described as glass-dividing. Record the chosen name as accurately as possible, and use drawings or sketches to show which details relate to window dimensions, outer frame, glazing or bar pattern. Keeping these matters separate makes consultation easier and prevents a design line being confused with a component dimension or another version.

05

Assessing the intended opening correctly

Because this half-round window is made to measure, reliable planning starts with a clearly described intended opening. With a semicircular form, a general note such as “rounded at the top” is not always enough. Document the geometry so the straight boundary, curve and their relationship remain understandable. The suitable method of recording details depends on the existing situation. For a new build, plans may be central; for an existing opening, clear records and informative drawings may also help.

Check that the opening is genuinely intended for a semicircular unit and that adjoining building elements make the form identifiable. Do not rely solely on a front-on photo where perspective or obstruction could distort the outline. A labelled sketch can explain which edges the details refer to. If several similar openings exist, assign each one clearly to its installation location. These are recommendations for preparing your enquiry; they neither alter the product shape nor replace assessment of your specific project.

Also consider the clear space around the planned position where relevant to your building situation. Adjacent cladding, reveals, roof lines or other elements can affect how the semicircle appears overall and how the location needs to be described. The window does not open, so there is no sash movement area to allow for. Nevertheless, position the fixed-glazed unit unambiguously within the intended opening. Keep building-opening information separate from outer-frame component dimensions; they describe different things and must not be treated as equivalent.

06

Colour, timber species and visual composition

Choose pine or oak for the frame, together with an available colour. State the preferred shade alongside the timber because both are part of your configuration. No particular colour is specified here, leaving the choice open for coordination with your project. Look beyond the half-round window itself to adjacent windows, doors, cladding and other visible surfaces. Considered coordination can either integrate the unit into an existing colour scheme or make it a clearly distinct feature.

The semicircular form already has a strong geometric effect. Colour and bar pattern can organise that effect further without changing the window type. A quiet, bar-free surface places the outline at centre stage. Horizontal divisions can relate to other level lines, while vertical patterns can follow an existing axis. A combined pattern may be worth considering where both directions occur in the design. These are possible ways to approach your selection, not assurances of how the completed unit will appear in every setting.

Where your project includes several timber windows or doors, decide before enquiring how the half-round window should relate visually to neighbouring elements. Matching timber and colour can create a calm connection, while a deliberately contrasting treatment can highlight the distinctive semicircular form. Record timber, colour preference and complete design name separately so every choice is unambiguous. Additional building views can show existing colours, materials and lines. This lets you plan the visible composition purposefully without mixing technical window components with design decisions.

07

Related window and patio-door types

As fixed glazing, the half-round window performs a different role from an opening window. If your project needs both a semicircular glass area and provision for ventilation or opening, allocate these functions to separate elements. The related range includes outward-opening pivot, top-hung and casement windows. These may suit positions where an opening function is required in addition to daylight. For each location, first determine whether permanent fixed glazing or an operable unit is needed, then select the product type that suits that purpose.

For opening window positions, compare single- or double-sash models according to the required design. Where external access is planned, related single patio doors may be relevant to further planning. Some window and door models are also available in a heritage style. This lets you consider different functions separately within one project: the half-round window forms the fixed-glazed semicircular part, while another window or patio door provides the required opening function. Compare every element by its own product information and configuration options rather than transferring half-round-window features to other models.

When combining several elements, prepare a simple overview of the intended positions. Mark where the fixed-glazed half-round window is to be used and where an opening window or patio door is planned. Add the function, required dimensions and design decisions for each position. This keeps different product types clearly assigned even when they appear on the same façade elevation. The following related windows and patio doors help you access suitable product pages for other positions in your project.

Outward-opening pivot window, Outward-opening top-hung window, Outward-opening single casement window, Outward-opening heritage-style single casement window, Outward-opening double casement window, Outward-opening heritage-style double casement window, Outward-opening single patio door, Outward-opening heritage-style single patio door.

08

Prepare your enquiry in a few steps

Start with the clear product name “Fixed-glazed half-round window”. Then note where the unit is intended within your project and whether it will stand alone or form part of a composition with other windows or doors. This brief context explains your design intention without giving the product additional functions. If you are enquiring about several half-round units, give them understandable position names so decisions are not accidentally mixed between installation locations.

Next, select the timber and record your colour preference. Add the required glazing build-up from the available choices. For the design, use exactly one of the listed names, including “glass-dividing” where it belongs to the selected pattern. For the bar-free design, state “Without bars”. Recording these points separately prevents material, colour, glazing and bar pattern from becoming one unclear design request. If you include reference views, label what they are intended to show.

Finally, check that every detail is assigned clearly to a position, and that timber, colour, glazing and bar pattern are each stated separately. If any decisions remain open, identify them specifically rather than replacing them with an approximate description. Clearly labelled drawings, sketches or photos can also show where the half-round window belongs and which surrounding lines matter to the design. Avoid confusing opening dimensions, required unit dimensions and fixed component details. With a well-structured enquiry, we can discuss the available options with you in a focused way.

Can the half-round window be opened?

No. This half-round window is fixed glazed and cannot be opened. It suits designs centred on a semicircular glazed area and daylight, with ventilation or opening access provided elsewhere.

Which timber species are available?

Choose from pine and oak. Neither timber changes the basic product type: it remains a semicircular fixed-glazed window. Consider other timber finishes and the overall effect you want for the project.

Can I choose a colour for the window?

Yes. Colour selection is one of the available purchase choices. As the appropriate result depends on the building, adjoining elements and your design concept, state the required colour clearly in your enquiry.

Is made-to-measure production available?

Yes. The half-round window is offered made to measure. It is important to capture the form and relevant information for the intended opening clearly. For a semicircular outline, avoid ambiguous sketches or only broadly estimated values.

Which bar designs are available?

The half-round window can be designed without bars, with one horizontal or vertical bar, or with one horizontal and one vertical bar. There is also a horizontal bar in the lower area, plus versions with one or two glass-dividing bars horizontally or vertically. State the complete design name, particularly for a glass-dividing version.

How is the insulated glazing constructed?

Double- and triple-glazed insulated glass are available. Both have a heat-reflective coating, warm-edge spacer (CHR) and argon fill. Silicone is used for glass seals. Include the chosen glazing build-up with the timber, colour and bar pattern in your enquiry.

Does the half-round window carry CE marking and include a commercial warranty?

Yes. It carries CE marking and a five-year commercial warranty. Any rights you have under Australian Consumer Law are not excluded by that warranty.

What can I choose if I also need an opening element?

If you also require an opening function, plan a separate window or patio door for that purpose. The related range includes outward-opening pivot, top-hung and casement windows, plus single patio doors; some models are available in heritage style. The half-round window remains fixed glazed and non-opening regardless of the combination.

Clarify your configuration with us

Planning an individual half-round window for your project? Send the details already decided for its location, timber, colour, glazing and bar design. Bloomcabin can help you set out the product configuration clearly, so your enquiry describes the desired appearance and key choices unambiguously.