Semi-Circular Window with Fixed Glazing

Made-to-measure semi-circular fixed glazing

Semi-circular fixed window

A fixed semi-circular pine or oak window with colour options, insulated glazing and named bar designs for a considered architectural composition.

Window type

Semi-circular fixed glazing

Operation

Non-opening

Timber species

Pine or oak

Manufacture

Made to measure

01

Everyday operation and use

This semi-circular window has fixed glazing and cannot be opened. In daily use, there is therefore no change between open and closed positions. Its role in your design is the permanently closed glazed area and distinctive semi-circular form. If you also need ventilation or an opening access point on the same elevation, provide that function through a separately selected element. Independently of that choice, the semi-circular window remains a fixed-glazed unit. This clear division is particularly useful when a project combines elements with different purposes: the curved window provides the visual feature, while another product may provide the desired movement or opening.

As the window does not open, consider everyday access to the glass surfaces while planning the project. This is not an additional product feature, but a practical consideration for the installation location. If the element is above another window or in a difficult-to-reach position, check in advance how accessible surfaces can be reached in your building. This may be assessed differently in an easily accessible location. The key point is not to confuse fixed glazing with an operable window and to plan its intended use accordingly.

The bar design affects how the window is experienced each day without changing its fixed-glazed function. An unbarred version emphasises the continuous semi-circular pane and clean outline. Horizontal lines can echo cornices, frame lines or other level elements, while vertical lines can continue an existing axis. Combining both directions divides the area more strongly. When choosing, consider not only the individual window but also neighbouring openings and repeating lines on the façade. This helps you decide whether the semi-circular window should blend in quietly or stand out as a distinct design feature.

02

Construction, component dimensions and technical details

The main technical details support comparison and configuration planning. The outer frame is specified as 105 × 57 mm; these values apply only to the outer frame and do not state the overall width or height of the made-to-measure window. Installation holes are specified as 14 mm. The semi-circular window is CE marked and offered with a five-year manufacturer guarantee. As it is made to measure, record the required element dimensions and the intended opening separately from the outer-frame dimensions. This keeps clear which values describe the complete window and which describe individual components.

Choose between double and triple insulated glazing. Both options 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 species, colour, glazing and bar design separately. This clearly describes the semi-circular window and distinguishes it from the dimensions of the intended opening and the fixed technical component data.

The semi-circular construction has permanent fixed glazing. It therefore remains a non-opening window even when bars are selected. Pay particular attention to the full variant name, as the range distinguishes between bars and bars explicitly described as glass-dividing. Record the chosen name as accurately as possible and indicate in drawings or sketches which details relate to window dimensions, outer frame, glazing or bar design. This separation makes coordination easier and prevents a design line being confused with a component dimension or another specification.

05

Assessing the intended opening correctly

As the semi-circular window is made to measure, sound planning begins with a clearly described intended opening. With a semi-circular shape, a general note such as “rounded at the top” is not always enough. Document the geometry so that the straight boundary, curve and their relationship remain understandable. The most suitable recording method depends on the existing situation. For a new build, drawings may take priority; for an existing opening, clear records and informative views can provide additional help.

Check that the opening is genuinely intended for a semi-circular element and that adjacent building components make the shape clear. Do not rely only on a front-on photograph where perspective or obstruction could distort the outline. A labelled sketch can explain which edges the information refers to. Where several similar openings exist, assign each one clearly to an installation position. These are recommendations for preparing your enquiry; they neither change the product shape nor replace an assessment of your specific project.

Also consider the required clear space around the planned position where relevant to your construction situation. Adjacent cladding, reveals, roof lines or other elements may affect how the semi-circular form appears in the overall view and how its position should be described. The window does not open, so no sash movement zone is required. Nevertheless, the fixed-glazed unit should be positioned unambiguously within the intended opening. Keep information about the structural opening separate from the outer-frame dimensions; they describe different matters and should not be treated as equivalent.

06

Colour, timber species and visual composition

Choose pine or oak for the frame, with colour options also available. State the preferred colour together with the timber species, as both decisions form part of your configuration. As no specific shade is prescribed here, the choice remains open for coordination with your project. Consider not only the semi-circular window in isolation, but also adjacent windows, doors, cladding and other visible surfaces. A considered choice can integrate the element into an existing colour scheme or let it appear as a clearly distinct component.

The semi-circular form already has a strong geometric presence. Colour and bar design can organise this effect further without changing the window type. A calm, unbarred pane places the outline at centre stage. Horizontal divisions can connect with other level lines, while vertical patterns may pick up an existing axis. The combined pattern is a design consideration where both directions occur in the scheme. These are possible ways to assess your selection, not guaranteed rules for how the finished element will look in every setting.

If your project includes several timber windows or doors, decide before enquiring how the semi-circular window should relate visually to neighbouring elements. A consistent timber species and colour can create a calm connection, while a deliberately contrasting design can highlight the special semi-circular form. Record timber species, colour preference and the full design name separately so every choice is clear. Additional views of the building can show existing colours, materials and lines. This allows the visible composition to be planned carefully without mixing technical window components with design decisions.

07

Related window and patio-door types

As fixed glazing, the semi-circular window serves a different purpose from an opening window. If your project requires both a semi-circular glazed area and ventilation or opening options, allocate these functions to separate elements. The related range includes outward-opening pivot, top-hung and casement windows. These suit positions where an opening function is required in addition to daylight. For each installation position, first decide whether permanent fixed glazing or an operable element is needed, then select the appropriate product type for that role.

For opening window positions, compare single- or double-leaf models according to the required arrangement. Where an outward access point is planned, the related single-leaf patio doors may be suitable for further planning. Some window and door models are also available in a historic style. This separates functions within one project: the semi-circular window forms the fixed-glazed curved section, while another window or patio door provides the required opening function. Compare every element using its own product details and configuration options rather than transferring the semi-circular window specification to other models.

When combining several elements, prepare a simple overview of the intended positions. Mark where the fixed semi-circular 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 in the same façade view. The following related windows and patio doors help you open suitable product pages for the further positions in your project.

Outward-opening pivot window, Outward-opening top-hung window, Outward-opening single-leaf casement window, Outward-opening single-leaf historic casement window, Outward-opening double-leaf casement window, Outward-opening double-leaf historic casement window, Outward-opening single-leaf patio door, Outward-opening historic single-leaf patio door.

08

Prepare your enquiry in a few steps

Start with the clear product name “Semi-circular fixed window”. Then record where the element is intended within your project and whether it appears alone or in a composition with other windows or doors. This brief context helps explain your design intention without attributing additional functions to the product. If you are enquiring about several semi-circular elements, use clear position labels so decisions are not accidentally mixed between installation locations.

Next, choose the timber species and record your preferred colour. Add the required glazing build-up from the available selection. For the design, use exactly one of the listed names, including the term “glass-dividing” where it belongs to the selected pattern. For the unbarred version, use “Without bars”. Recording these details separately prevents material, colour, glazing and bar design being combined into one unclear design request. If you attach reference views, label what they should illustrate.

Finally, check that all information is clearly assigned to a position and that timber species, colour, glazing and bar design are stated separately. If some decisions remain open, identify them directly rather than replacing them with an approximate description. Clearly labelled drawings, sketches or images can also show where the semi-circular window is intended and which surrounding lines matter to the design. Ensure that opening dimensions, required element dimensions and fixed component data are not confused. A clearly structured enquiry lets us discuss the available options with you efficiently.

Can the semi-circular window be opened?

No. This semi-circular window has fixed glazing and cannot be opened. It is therefore suited to a plan centred on the curved glazed area and daylight, with ventilation or an opening access point provided elsewhere.

Which timber species are available?

Choose between pine and oak. Neither timber species changes the basic product type: it remains a semi-circular fixed-glazed window. Consider the other timber surfaces and the desired overall appearance of your project when deciding.

Can I choose a colour for the window?

Yes. A colour choice is one of the available purchasing decisions. As the right effect depends on the building, adjoining components and your design concept, state the preferred shade clearly in your enquiry.

Is made-to-measure manufacture available?

Yes. The semi-circular window is offered made to measure. The form and relevant details of the intended opening must be recorded clearly. For a semi-circular outline, avoid ambiguous sketches or only roughly estimated values.

Which bar designs are available?

The semi-circular window is available without bars, with one horizontal or vertical bar, or with one horizontal and one vertical bar combined. Options also include a horizontal bar in the lower area and versions with one or two glass-dividing bars in horizontal or vertical directions. State the complete design name, especially when selecting a glass-dividing version.

How is the insulated glazing constructed?

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

Is the semi-circular window CE marked and available with a manufacturer guarantee?

Yes. The semi-circular window is CE marked and has a five-year manufacturer guarantee.

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

If you also need an opening function, plan a separate window or patio door for it. The related range includes outward-opening pivot, top-hung and casement windows, plus single-leaf patio doors; some models are also available in a historic style. The semi-circular window retains fixed glazing and cannot be opened, regardless of the combination.

Discuss your configuration with us

Planning an individual semi-circular window for your project? Share the details already decided for the location, timber species, colour, glazing and bar design. We will help organise the product configuration clearly so your enquiry accurately describes the intended appearance and key decisions.