Single-Sash Inward-Opening Window

Easy handling in a crisp one-sash format

One-sash window opening into the room

Made for the specified opening, this inward-opening tilt window has four material finishes plus selectable glazing, bar pattern, colour and handle.

Opening type

One sash that swings inward and can tilt

Material

Oak or pine, each offered in timber-only and aluminium-covered forms

Glazing

Insulating glazing with 2 panes or 3

Guarantee

5 years

01

Open inwards and tilt with ease

One movable sash performs the window’s two actions. It opens towards the interior and can be set to tilt, allowing operation to suit the immediate need without choosing between separate sashes. Unlike fixed glazing, this model can open; unlike an outward-opening window, its travel is on the room side. Plan accordingly around the sill, furnishings and nearby objects. Before selecting colour, decorative bars and other visible details, plot the movement on a drawing that includes the furniture intended for the space. This makes the relationship between window and room easier to judge.

Allow suitable clearance indoors for the moving sash. During planning, look for a sill, furniture, ornaments or other objects that might enter its travel area. Tilting also benefits from unobstructed space immediately beside the unit. There is no single arrangement suitable for every room; assess how this particular position will be used after installation. Working through those details in advance should let you use both opening actions comfortably in ordinary day-to-day situations.

Think about the regular user of the single sash, the position they approach from and how easily they can grasp the handle. Even if the sash path is clear, a deep desk or countertop may make operation awkward. Visualise opening and tilting the window after the furniture is installed. Testing that routine mentally helps connect the chosen window with a sensible room arrangement.

02

Timber types, aluminium cladding and components

The frame has four possible finishes: plain pine, pine clad in aluminium, plain oak, and oak clad in aluminium. You may therefore retain an all-timber appearance or combine either named wood with metal cladding. Consider the visual character you prefer and how the finish will sit alongside the project's other doors or windows. Pine and oak are still separate timber selections rather than interchangeable descriptions of the same option.

Its construction includes hardware from Roto Frank, silicone glazing seals, mounting bores measuring 14 mm across and CE marking. The fittings belong to the underlying window build; the chosen handle is a separate operating choice. Treating them separately makes model comparisons clearer, while still ensuring that the available handle and the stated technical components are considered before ordering.

The outer frame measures 78 × 82 mm in the plain-timber construction and 90.6 × 82 mm when aluminium cladding is included. Identical values apply to the sash frame for those respective versions. They are component-section dimensions, not the width and height used to order the assembled window. Keep each measurement beside its matching finish so unclad and clad configurations remain clearly separated.

05

Plan made-to-measure sizes and opening space ahead

Record the ordered width and height with clear measurement references, and do not mix aperture dimensions with those intended for the finished unit. If readings differ across an existing opening, include each relevant variation. Use an annotated sketch to show how the figures relate and label its orientation. For several windows, identify every position by a short unique name, ensuring the corresponding drawings cannot be assigned to the wrong location.

Allow for the single sash to travel inward and to adopt its tilt setting at the proposed location. Review the surroundings in their finished, everyday arrangement, paying particular attention to sill depth and objects that will remain near the window. Settle this spatial and operational question before confirming frame colour, handle or decorative features. A suitable movement pattern is the basis of a window choice that remains convenient in regular use.

A renovation drawing should depict the finished interior, including new wall coverings, sill changes and fitted joinery that may affect the aperture. Label retained and new components clearly. Also ensure the glass remains accessible for ongoing maintenance. Checking care access together with the sash’s operating space creates a location that supports daily handling and recognises the window’s lasting role within the room.

06

Coordinate colour, handle and material effect

The handle and frame colour are separate choices, and each influences the result at a different scale. Colour defines the broad surround; the handle introduces a smaller focal detail. Decide which should blend back and which, if either, should attract attention. A strongly contrasting frame rarely requires an equally prominent handle. Conversely, a quiet palette can support one deliberately distinct fitting. Establishing this visual order ties the large surfaces to the details seen and touched in daily use.

Let the room’s existing wood finishes inform the frame material. If floors, doors and furniture already present several tones, choose one deliberate relationship rather than trying to match every item. A fixed architectural feature may offer a more lasting point of connection than furnishings that can be replaced or moved. Study the proposed finish from indoors, but assess the exterior face at the same time. The two sides sit against different backgrounds, so each setting should be considered before the material treatment is confirmed.

Adding glazing bars increases the amount of coloured framing seen across the glass. Consequently, a heavily divided layout displays the chosen finish more prominently. Judge colour on the exact bar arrangement you favour, rather than on an undivided sample alone. Where railings, joints or planting already produce a busy network of lines outside, fewer divisions may feel calmer. A stronger grid can instead introduce deliberate rhythm against a plain background. The best balance depends on how the opening interacts with its surroundings.

Consider colour in two settings: one opening viewed from inside and the complete line of windows seen externally. Walls and furniture influence the interior response, while render, cladding and adjacent frames matter outdoors. Compare the chosen shade with each surface in daylight where possible. A dark reveal can alter its appearance compared with a pale, brightly illuminated wall. For a single replacement, decide whether it should blend unobtrusively or mark an intentional change to the room. Either aim can guide a focused selection.

07

Compare related windows and doors clearly

If opening the glass is unnecessary, a fixed-glazed window may be the better alternative. That range also permits pine or oak, in plain timber or aluminium-clad form, together with 2-pane or 3-pane insulating glass. A round fixed window is available in either timber. Another distinct choice is the combination window, which likewise provides pine and oak frames, optional aluminium cladding and either glazing depth. Begin by identifying the required function: this single-sash model with inward opening and tilt, glazing that never opens, or a combination unit. Only then narrow the choice by finish and glass specification.

The catalogue contains two distinct EI30 windows. The inward model has oak construction, tilt-and-turn operation, Roto Frank hardware and insulating glass with 2 panes. The outward model retains oak and the 2-pane glass but changes to Spilka fittings. Super Low Uw is a separate outward-opening Passive House window made from pine with specialist thermal-insulating material and 3-pane glazing. These specifications belong exclusively to their respective products and must not be transferred to this one-sash window.

When the element must provide terrace access, consider the one-leaf terrace-door ranges, which open towards the exterior. The standard door can be configured in pine or oak, either as timber alone or with aluminium cladding. A historic-style door is likewise available in those two timbers. Depending on its specification, each door model offers 2-pane or 3-pane insulating glass and can include a panel. These are doors rather than windows and their outward movement also differs from this product. Define the required purpose at the outset; after choosing the correct product category, review the available material, glazing and design options.

EI30 fire window with inward opening, EI30 fire pivot window opening outwards, Super Low Uw outward-swing window for Passive Houses, Window with combined sections, Non-opening glazed window, Circular non-opening window, Outward-opening terrace door with one leaf, Period-style patio door, one leaf, opening outwards.

08

Prepare a clear, complete window enquiry

Set out each window location separately when requesting a quotation. Include the required dimensions, selected timber—pine or oak—and whether aluminium cladding is wanted. Then list the insulating-glass choice of 2 or 3 panes, decorative-bar design, frame colour and handle. Distinct labels are essential for multiple positions. Organising the information in a table or separate schedules prevents measurements from being combined incorrectly and identifies the intended installation point for every configuration.

Where you are undecided, tell us which two options you prefer and identify the main difference between them. Your goal may be to integrate the window discreetly into the room or to introduce an intentional visual change. A short explanation is enough to support a discussion of relevant available configurations; you need not document every possibility explored. We can clarify product points and assist with the comparison. Our commercial guarantee for windows and doors applies to this model for five years. Store the agreed specification with the order records.

Does the window have a tilt function?

Yes. Its only sash can swing towards the room or be placed in the tilt position, letting you use the action appropriate to the moment.

What timber and cladding options are offered?

Choose plain pine, aluminium-covered pine, plain oak or aluminium-covered oak.

What glazing specifications are offered?

Insulating glazing is available with 2 panes or 3; each build uses argon gas, reflective thermal coating and the CHR warm-edge spacer.

What frame dimensions are stated?

The fixed and opening frame sections are both 78 × 82 mm; aluminium-clad specifications for either section are 90.6 × 82 mm.

Is the window available with decorative bars?

Yes. You may order clear, undivided glazing or select from the named horizontal, vertical and combined decorative-bar layouts.

Is the window manufactured to specified dimensions?

Yes. It can be produced to the project measurements, and you may include your colour and handle selections in the specification.

Which hardware and glazing seals are used?

Hardware comes from Roto Frank, while the glazing seals use silicone.

What guarantee applies to the window?

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

Configure a bespoke window with one sash

Tell us about your bespoke one-sash window, and we can help coordinate the measurements, timber, glazing, bar pattern, handle and frame colour.