Inward-Opening Single-Sash Window

Flexible operation in a clean single-sash design

Single-sash inward-opening window

A made-to-measure inward-opening window with tilt function, four material options, double or triple glazing, plus choices of glazing-bar pattern, colour and handle.

Opening type

One inward-opening sash with tilt function

Material

Pine or oak, each also aluminium-clad

Glazing

Double or triple glazing

Warranty

5 years

01

Open inwards and tilt with ease

The window has one movable sash which opens inwards and can also be tilted. This gives you an operating option suited to everyday use without having to manage several sashes. Unlike fixed glazing, this model can be opened; unlike outward-opening windows, it moves into the room. When planning, therefore consider the position of the sill, furniture and other nearby objects. A layout showing the furniture you actually intend to use makes this spatial relationship clear before you select the visible details.

Because the sash opens inwards, a suitable clear area is useful on the room side. During planning, check whether the sill, furniture, decorations or other objects could obstruct it. A clear area immediately around the window is also helpful for the tilt position. This is not about a universal room layout, but about the real use of the intended installation location. Careful planning makes it easier to use both functions as you want every day.

With one sash, operation is focused on a single window element. Consider who will use it regularly and from where the handle will be reached. A worktop or deep table in front of the window can affect access, even where the opening area is generally clear. Mentally walk through the usual action in the furnished room. This practical view connects the window choice with your habits and helps create a well-organised space.

02

Timber, aluminium cladding and components

Four material versions are available: pine, aluminium-clad pine, oak and aluminium-clad oak. You can therefore choose an all-timber version or one combining the relevant timber with aluminium cladding. Base the decision on the desired material appearance and its relationship with other windows or doors in the project. Pine and oak remain clearly defined, separate choices.

The window is fitted with Roto Frank hardware and silicone glass seals. Installation holes have a diameter of 14 mm, and the product carries CE marking. Treat the hardware as part of the construction, while the selectable handle is an additional operating detail. This supports an orderly comparison with other windows. You can ask specifically about the available handle selection while the model’s other technical features remain clearly stated. A complete product decision includes both areas.

The outer frame measures 78 × 82 mm; for the aluminium-clad version, the figure is 90.6 × 82 mm. The sash frame uses the same dimensions: 78 × 82 mm, or 90.6 × 82 mm with aluminium cladding. These component dimensions must be distinguished from the overall window order dimensions. Record the selected version alongside the relevant measurements. This makes clear which component sizes apply to the timber version and which apply to the clad option.

05

Plan made-to-measure sizing and opening space

This window is offered made to measure. Record width and height with a clear reference, and distinguish opening dimensions from the required window dimensions. In an existing opening, variations at different measuring points should remain visible. A labelled sketch shows these relationships better than a single row of figures. Also state the viewing direction. For several windows, short position names help match drawings to the correct location. This creates a clear basis for discussing the required version further.

At the planned location, remember that the single sash moves inwards and can also tilt. Check the proposed surroundings in their real context of use. The depth of a sill or objects permanently placed near the window may be relevant. Consider this before finally selecting the colour, handle and decorative details, because the right opening type is the basis for a practical everyday choice.

If the room is being altered, the plan should show the finished state. New wall finishes, a changed sill or additional built-in elements can affect the area around the opening. Mark which components will remain and which will be new. The glazed area should remain accessible for future cleaning and care. This complements planning for the sash movement with access to the surfaces. A sensibly selected position considers the window both in use and as a permanent room component.

06

Coordinate colour, handle and material effect

Colour and handle can be selected and influence the appearance in different ways. The frame colour defines the larger surround, while the handle creates a small visible accent. Consider which element should recede and which should stand out. A contrasting frame does not necessarily need a striking handle too. Conversely, a deliberately contrasting detail can suit a restrained colour scheme. This balance gives the window view an ordered appearance and connects larger surfaces with regularly noticed details.

Timber surfaces in the room can provide a reference for the material effect. If the floor, door and furniture already show different timber tones, choose a clear focal point for the window. It does not need to relate separately to every item. A connection to a permanent building element may be more convincing than one based on changeable furniture. View your preferred version from inside and assess the exterior too. The window is seen against two different backgrounds, so choose it deliberately for both.

The glazing-bar pattern changes the visible amount of frame line within the glass area. With more division, the selected colour appears in more places. Always compare the colour idea on the preferred pattern, not only on an undivided example. Where railings, joints or planting already create many lines outside, a simpler design may feel calmer. Against a largely uninterrupted surface, a stronger grid can instead establish an intentional rhythm. The deciding factor is the relationship between window and surroundings.

Two separate views help when choosing colour: the individual window opening in the room and the row of windows on the building. Indoors, wall colour and furniture can determine the right tone; outside, plaster, cladding and neighbouring frames are important. Compare a preferred colour with the relevant surfaces in daylight where possible. A dark reveal makes a frame look different from a pale wall in direct light. For a single replacement window, also decide whether it should blend in quietly or mark a deliberate change to the room design. Both can be achieved through a considered selection.

07

Compare related windows and doors effectively

If no opening function is needed, a fixed-glazed window is an alternative. It is also available in pine or oak, each with an aluminium-clad option, and with double or triple glazing. For a round, non-opening design, there is fixed glazing in pine or oak. A combination window is another distinct product type, likewise offering pine, oak and their aluminium-clad versions, as well as two or three panes. Your initial choice is therefore whether you need this inward-opening, tilt-function single-sash window, non-opening glazing or a combination window.

For projects requiring an EI30 classification, two separate window models are available. The inward-opening version has a tilt-and-turn sash, is made from oak and has Roto Frank hardware with double glazing. The outward-opening EI30 model is also oak, but uses Spilka hardware and double glazing. There is also an outward-opening passive-house window called Super Low Uw. It is made from pine with a special insulating material and triple glazing. Classification, material, glazing and opening direction thus remain assigned to each model; the single-sash window presented here is a separate product choice.

Where the element is intended as access to a patio, outward-opening single patio doors are the more suitable product category. Choose a standard version in pine or oak, each also available aluminium-clad, or a historical-style version in pine or oak. Both door models offer double or triple glazing and may include a panel depending on the version. They differ from this window both as doors and by opening outwards. Start the comparison with the intended purpose, then choose material, glazing and design within the appropriate product category.

EI30 fire window, inward-opening, EI30 fire pivot window, outward-opening, Super Low Uw passive-house window, outward-opening, Combination window, Window with fixed glazing, Round window with fixed glazing, Single patio door, outward-opening, Historical-style single patio door, outward-opening.

08

Prepare your window enquiry clearly and completely

For a specific enquiry, we need a clear summary of your preferred version. For each window position, state the project-specific dimensions, pine or oak, and whether you want an all-timber or the relevant aluminium-clad version. Add the preferred double or triple glazing, named glazing-bar pattern, colour and handle. With several windows, each position should have a clear identifier. A table or position-by-position list can help keep different dimensions and configurations properly separate. This allows us to see immediately which features belong together and which installation location they are intended for.

If your decision is not yet final, tell us your two favourites and the key difference between them. You may want the new window to sit quietly within an existing room, or you may wish to change its appearance deliberately. A short description of that aim helps us discuss the suitable available versions with you. You do not need to document every design route in detail. We answer product-related questions and help you compare the options. This window has our five-year warranty for windows and doors. Keep your final choice with your order documents.

Does the window have a tilt function?

Yes. The single sash opens inwards and also has a tilt function. You can therefore choose between opening and tilting according to the situation.

Which materials is the window available in?

Choose from pine, aluminium-clad pine, oak and aluminium-clad oak.

Which glazing can I choose?

Choose double or triple glazing. Both versions include a heat-reflective coating, a warm-edge spacer bar (CHR) and argon gas filling.

What frame dimensions are stated?

The outer frame and sash frame are each stated as 78 × 82 mm. For aluminium-clad versions, each figure is 90.6 × 82 mm.

Is the window available with decorative glazing bars?

Yes. Alongside a version without decorative glazing bars, named patterns with horizontal and vertical bars and combinations are available.

Can the window be ordered made to measure?

Yes. The window is offered made to measure. Colour and handle selection are also available ordering options.

Which hardware and glass seals are used?

The hardware is from Roto Frank. Silicone is used for the glass seals.

Which warranty applies to the window?

This window has our five-year warranty for windows and doors.

Plan your made-to-measure single-sash window

Talk to us about your made-to-measure single-sash window. We can help you bring together dimensions, material, glazing, glazing-bar pattern, colour and handle.