Inward-opening double casement window

Two sashes, made to measure

Inward-opening double-sash window

Configure an inward-opening double-sash window in pine or oak, optionally aluminium-clad, with your choice of glazing, colour, handle and design pattern.

Opening type

Two inward-opening sashes with tilt function

Material

Pine or oak, each also aluminium-clad

Glazing

2- or 3-pane insulated glazing

Warranty

5 years

01

Inward-opening sashes and tilt function in daily use

The basic operation is fixed by the product type: two window sashes open inwards and a tilt function is included. This combination gives you two ways to use the window; an outward-opening alternative is not part of this product. Fully opening the sashes requires space inside the room, while in tilt position each sash remains at its intended angle. Choose the position that suits the situation at hand.

The internal movement zone is particularly important during planning. Check whether window sills, fittings, furniture, curtains, lights or other details could project into the intended opening area. Consider not only fully opened sashes, but also comfortable day-to-day operation. Where worktops or furniture stand in front of the window, the handle should remain accessible and the intended sash position usable. This coordination is especially valuable for made-to-measure work because window size and the specific room can be assessed together. Frequently used circulation and work areas directly in front of the window can therefore be included early in the plan.

The double-sash arrangement is also a deliberate visual choice. Two sashes divide the window area differently from a single sash or a fully fixed-glazed solution. Consider operation and appearance together: if you need two opening sashes, this product type may suit the project. If opening is unnecessary, or another opening direction is required, compare the window types intended for those needs instead.

02

Timber options, aluminium cladding and frame construction

Four material versions are available for this window: pine, pine with aluminium cladding, oak and oak with aluminium cladding. First choose between pine and oak, then decide whether the selected timber should be combined with aluminium cladding. This choice affects the visible material character and the dimensions of the relevant frame component. Select material together with colour, glazing and design pattern rather than in isolation.

The stated outer-frame dimension is 82 × 78 mm; with aluminium cladding it is 82 × 88 mm. The sash frame likewise measures 82 × 78 mm, or 82 × 88 mm with aluminium cladding. Record whether you require the all-timber version or an aluminium-clad option so the correct frame dimension is considered. Outer frame and sash frame are separate components, even though their stated dimensions match for this window. Your individual ordering dimensions must also be distinguished clearly from these frame dimensions. This keeps material version, component and associated measurement unambiguous in the enquiry.

Further specified equipment includes Roto Frank fittings and installation holes with a diameter of 14 mm. The window carries CE marking. These details belong to the defined product specification, while size, material, colour, handle and glazing option are selected for your project from the available choices. Our windows and doors have a five-year warranty. This gives you a clearly described basis for configuration without mixing details from different window types.

05

Made-to-measure production and forward planning

As the window is available made to measure, clear project dimensions form the basis of selection. Assign width and height unambiguously and identify every element separately if several windows are planned. Consider the intended installation location, adjacent building elements and the available room for inward-opening sashes. The stated outer-frame and sash-frame dimensions do not replace your project’s individual order dimensions; the two types of information serve different purposes. Alongside the required window dimensions, note the chosen material option and any aluminium cladding. A clear schedule makes it easier to combine dimensions, frame version and design pattern for every planned window.

Plan for inward opening at an early stage. The free area needed depends on the chosen window size and the actual surroundings. A window sill, basin, worktop or other internal fitting may affect operation when positioned nearby. Also check curtains, blinds, plants and movable furnishings around the window. Include both full opening and tilt position in your planning. This lets you coordinate intended use with the room layout and identify before enquiring which dimensions and arrangement may suit the project.

For patterns incorporating fixed glazing, it is helpful to name the preferred division together with the overall dimensions. Use the specific pattern description rather than simply saying “multi-section” or “with glazing bars”. This makes clear whether you mean two plain sashes, a combination with one fixed glazed area, the explicitly central version or two fixed glazed sections. A precise assignment reduces follow-up questions and helps coordinate the made-to-measure version.

06

Coordinating colour, handle and design

Colour and handle are among the available choices. Both details shape the window’s appearance and should be selected in connection with pine or oak and any aluminium cladding. Consider the internal and external views of the planned window within their design setting. Existing windows, doors, fittings, wall finishes and recurring colours can provide useful reference points. The selected glazing-bar pattern also affects how prominent the colour and frame appear overall. Record your preferred colour and handle with material, glazing and pattern. If several windows are planned, identify which selection applies to each element.

The glazing-bar pattern also influences the overall impression. Two sashes without glazing bars create a different division from versions with one or two horizontal bars. Combinations with fixed glazing may add vertical glazing bars, depending on the named pattern. Include not only colour but also the number and direction of the bars described in the pattern when planning the visual effect. Do not infer exact geometry or proportions from the pattern name.

A fixed order can help create a coherent selection: first decide which functional arrangement is required, then choose the appropriate design pattern, followed by material, aluminium cladding, colour and handle. Finally, assign the glazing option. This sequence is not a technical requirement, but it helps organise independent choices clearly and avoid contradictions in an enquiry. The result is a configuration that considers both operation and the desired appearance.

07

Suitable alternatives from our window and door range

This inward-opening double-sash window is a suitable starting point when two sashes and a tilt function are required. If no opening function is needed, compare it with a fixed-glazed window. For distinctive window shapes, a fixed-glazed round window and a fixed-glazed half-round window are also available; neither can be opened. A combination window may suit a project requiring another mix of window elements. Each product type has its own defined specifications.

Where opening direction is decisive, distinguish carefully between inward- and outward-opening products. The EI30 outward-opening fire-rated pivot window has the stated EI30 classification and is described as outward opening. The Super Low Uw passive-house outward-opening window is an outward-opening pivot sash. These alternatives differ fundamentally from the double-sash operation presented here, so their material, glazing and frame data must not be transferred to this window.

For a glazed entrance rather than a window, compare the single-sash outward-opening patio door or the single-sash outward-opening historic-style patio door. Here too, outward opening is an important difference. First decide whether you need a window or patio door, then compare opening direction, number of sashes, material options and design patterns within the relevant product information. This keeps the choice practical and suited to the intended use.

EI30 outward-opening fire-rated pivot window, Super Low Uw passive-house outward-opening window, Combination window, Fixed-glazed window, Fixed-glazed round window, Fixed-glazed half-round window, Single-sash outward-opening patio door, Single-sash historic-style outward-opening patio door.

08

Request your preferred configuration clearly

For a focused enquiry, tell us the required dimensions, preferred material version and your chosen two- or three-pane glazing. Add the colour, handle and exact name of the design pattern. If your choice includes fixed glazing, give the complete pattern description, especially where central fixed glazing or two fixed glazed sections are intended. For several windows, identify each element clearly with its dimensions and specification preferences. Also state whether you require pine or oak and whether aluminium cladding is wanted. This clearly distinguishes every configuration from the other available arrangements.

Please also tell us which points remain open. We can assist with choices from the available options and help bring together made-to-measure production, timber type, aluminium cladding, insulated glazing, colour, handle and pattern. A well-prepared enquiry need not settle every decision in advance; above all, it should show how the window will be used and which design direction you prefer. On that basis, we can discuss the next product steps with you.

Is the double-sash window available made to measure?

Yes. The window is made to measure. To ensure the order suits your building project, provide the required dimensions clearly with the preferred version. When planning, also remember that both sashes open inwards.

Which materials are available?

Choose from pine, pine with aluminium cladding, oak and oak with aluminium cladding. This gives you two timber species and the corresponding aluminium-clad versions.

Which glazing can I choose?

The window is available with 2- or 3-pane insulated glazing. Both versions include a heat-reflective coating, a CHR warm-edge spacer and argon gas. The glazing seals are silicone.

How does the window open?

This is a double-sash window that opens inwards and includes a tilt function. Allow sufficient clear space on the room side for the intended use.

Are versions with glazing bars available?

Yes. Design patterns without glazing bars are available, as are versions with horizontal bars and, in certain fixed-glazing combinations, vertical bars. The available patterns differ according to the arrangement of sashes and fixed glazed areas.

Can the window include fixed glazing?

Yes. Alongside pure double-sash patterns, several arrangements combine two sashes with one or two fixed glazed areas. One version has central fixed glazing. State the complete preferred pattern in your enquiry so sashes, fixed glazing and bars can be assigned clearly.

Can I choose the colour and handle?

Yes. Colour and handle are supported options. Coordinate both with the chosen timber type, any aluminium cladding and the preferred design pattern.

What warranty applies to the window?

Our windows and doors have a five-year warranty. Keep the documents relevant to your order and selected version in a safe place.

Plan your double-sash window with us

Planning an inward-opening double-sash window for your building project? Send us your required dimensions and details of material, colour, glazing, handle and preferred design pattern. We will help you coordinate the available choices and select a suitable version for your project.