Bloomcabin 1 opening sash without decorative bars. This side-hung, outward-opening window is designed with one opening sash without decorative bars. Its uninterrupted appearance offers a crisp, understated solution for spaces where simplicity is the defining feature.
Why choose this Bloomcabin design?
Without decorative bars, the single sash presents a clear, unfussy appearance. This pared-back design allows the window’s simple proportions to take visual priority.
The side-hung opening sash opens outwards, providing a straightforward format for schemes that favour clean lines rather than divided decorative detailing.
High energy efficiency supports a comfortable indoor setting, complementing the window’s simple, considered design with a pleasant everyday atmosphere.
An excellent fit for projects requiring a side-hung, outward-opening window with one opening sash and a clean appearance without decorative bars. 1 opening sash without decorative bars — Balanced proportions make it easier to coordinate the design with the architecture and the intended appearance of the facade. 1 opening sash without decorative bars — The proportions, facade arrangement, and intended overall appearance can also be considered together when selecting the final configuration. It has one opening sash.
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Type: Outward-opening sash;
Warranty: 5 years;
CE: Yes;
Material: Pine, pine with aluminium cladding, oak or oak with aluminium cladding;
Glazing: 2- or 3-pane glazing unit with heat-reflective coating, warm-edge spacer (CHR) and argon gas;
Glazing seals: Black rubber;
Hardware: SPILKA, IPA;
Fixing holes: 14 mm;
Frame: 105 × 57 mm, with aluminium cladding – 115 × 57 mm;
Sash: 76 × 65 mm, with aluminium cladding – 86 × 65 mm;
BLOOMCABIN / WINDOWS & DOORS
Single-Sash Outward-Opening Side-Hung Window
A made-to-measure, single-sash side-hung window that opens outwards, with pine or oak construction, optional aluminium cladding, two glazing choices, seven decorative-bar patterns, and colour and handle options.
Product type
Outward-opening sash
Material options
Pine, pine with aluminium cladding, oak or oak with aluminium cladding
Design choices
Explore the patterns
Warranty
5 years
Our Single-Sash Outward-Opening Side-Hung Window gives you one opening sash in a clean, compact format. We make it to measure, with a choice of pine or oak, optional aluminium cladding, 2- or 3-pane glazing and seven decorative-bar arrangements.
Your decisions can be led by practical use as well as appearance. Consider the outdoor space needed for the sash, the position from which you will reach the handle and the relationship between this window and the rest of the building. You can then select a colour and handle to complete the configuration.
This guide takes you through each choice in turn, including construction, glazing, patterns and measuring. It also compares the other outward-opening, pivot and patio-door formats available from us, helping you decide whether this single-sash design is the right starting point for your project.
01
Type: Outward-opening sash.
This is a side-hung sash that opens outwards. The opening movement takes place beyond the external face of the wall rather than into the room, so the first practical question is whether the area outside will remain clear when you use it. Consider nearby walls, planting and anything you may place directly in front of the window. The sash also needs to be suitable for the way you expect to open and close it during normal use.
Look at the handle position from the place where you will actually stand. For example, if you are planning the window above a kitchen worktop, you could check whether you can reach the chosen handle comfortably without leaning across taps, appliances or objects kept on the surface. At the same time, consider what is outside: the outward action may suit the room because it does not move over the worktop, but the external path should not conflict with planting or another feature close to the wall.
This example brings the main day-to-day considerations together: indoor reach, outdoor clearance and the frequency with which you expect to operate the sash. A handle is a visual choice, but it is also the point you use each time the window is opened. Compare the handle options from a normal standing position and select one that suits both the window colour and your preferred way of using it. If the opening will be harder to reach, settle that practical choice before giving priority to decorative details.
02
Material: Pine, pine with aluminium cladding, oak or oak with aluminium cladding; Hardware: SPILKA, IPA; Fixing holes: 14 mm; Frame: 105 × 57 mm, with aluminium cladding – 115 × 57 mm; Sash: 76 × 65 mm, with aluminium cladding – 86 × 65 mm.
The material choice is between pine, pine with aluminium cladding, oak and oak with aluminium cladding. Begin by deciding whether you want a timber construction without cladding or a timber option with aluminium cladding. This is more useful than comparing all four names at once, because it separates two decisions: your choice of pine or oak, and whether the construction should include cladding.
If your priority is the timber selection, compare pine and oak samples or product images in the context of the colour you intend to choose. Look at which material best supports the overall appearance you want rather than treating the timber name as a detail in isolation. If aluminium cladding is important to your project, compare pine with aluminium cladding against oak with aluminium cladding; the timber choice remains, but both configurations include the additional clad construction.
The adjoining specification lists the frame and sash sections for unclad construction and the different sections used with aluminium cladding. Keep each complete set together when discussing the opening or installation, as it would be easy to select a material and then refer to the dimensions for the other construction. The specification also identifies SPILKA and IPA hardware and 14 mm fixing holes. These are fixed construction details to share with the person planning the fit, rather than decorative choices to substitute for your decisions about material, colour or handle.
03
Glazing: 2- or 3-pane glazing unit with heat-reflective coating, warm-edge spacer (CHR) and argon gas; Glazing seals: Black rubber.
You can choose either a 2-pane or a 3-pane glazing unit. Both choices are specified with a heat-reflective coating, a warm-edge spacer (CHR) and argon gas, together with black rubber glazing seals. The decision is therefore about the pane count within this stated glazing specification, not about choosing each of those listed elements separately.
Make the choice in relation to the requirements of the room and the wider building plan. If a designer, surveyor or installer is setting a particular glazing requirement for the project, ask them to confirm whether the 2-pane or 3-pane option is appropriate before you finalise the window. This is especially useful when several windows are being planned together and you want the specifications to follow one consistent approach.
Avoid choosing solely from the pane count shown on another window. A replacement project may have requirements that differ from the existing product, while a new opening should be considered as part of the new wall design. Give the person advising on the building the full glazing description, including the coating, spacer, gas and seals, so their decision is based on the unit we actually offer. Once the technical requirement is settled, you can return to the pattern and colour choices without confusing a glazing specification with a decorative preference.
04
Available design patterns: 1 opening sash without decorative bars; 1 opening sash with 1 horizontal decorative bar; 1 opening sash with 1 vertical decorative bar; 1 sash with 1 horizontal decorative bar and 1 vertical decorative bar; 1 sash with 1 horizontal decorative bar and 2 vertical decorative bars; 1 Sash with 1 Horizontal Decorative Bar and 3 Vertical Decorative Bars; 1 opening sash with 2 horizontal decorative bars and 1 vertical decorative bar.
For the simplest appearance, choose “1 opening sash without decorative bars”. It leaves the single-sash format visually undivided and places the emphasis on the outline of the frame. Consider this design if you want a restrained window or if neighbouring features already create enough visual detail.
The “1 opening sash with 1 horizontal decorative bar” design creates an upper and lower visual division. By contrast, “1 opening sash with 1 vertical decorative bar” creates a side-by-side division. Compare them one at a time on the same window proportions: the horizontal design draws attention across the sash, while the vertical design emphasises an upright arrangement. Your preference may depend on the lines already present in adjacent windows or on the facade.
For a combined pattern, “1 sash with 1 horizontal decorative bar and 1 vertical decorative bar” introduces both directions without adding further vertical divisions. “1 sash with 1 horizontal decorative bar and 2 vertical decorative bars” increases the number of upright sections across the sash. “1 Sash with 1 Horizontal Decorative Bar and 3 Vertical Decorative Bars” takes that approach further, producing the most repeated vertical rhythm among the designs with one horizontal bar. When comparing these three, look at each complete arrangement rather than selecting the number of vertical bars separately from the horizontal element that accompanies them.
The remaining design, “1 opening sash with 2 horizontal decorative bars and 1 vertical decorative bar”, gives greater emphasis to repeated horizontal divisions while retaining one vertical division. It is the alternative to choose if you prefer a more panelled arrangement built from additional horizontal rather than vertical repetition. Decorative bars add visual structure, so consider the finished made-to-measure proportions: the same named pattern can feel different on a narrow, upright opening and a broader opening. A useful final comparison is between the undivided design, your favourite single-direction pattern and your favourite combined pattern. This quickly shows whether you prefer simplicity, one dominant line or a more detailed grid.
05
In a replacement project, begin with the completed opening rather than the old window alone. Once the existing frame is removed or the finished opening can be confirmed accurately, the relevant width and height are the distances between the finished surfaces that will surround the new product. The old frame can be a useful reference, but it should not automatically become the manufacturing size for a made-to-measure replacement.
For example, an opening may look uniform while its finished width varies slightly from one position to another. Record the opening carefully and give those measurements to the person responsible for fitting the window. They can assess the actual opening, determine the allowance needed for installation and confirm the final manufacturing width and height. We make the window to measure, but the ordered dimensions still need to reflect the fitting plan rather than an assumption that the product should exactly fill every measured distance.
Confirm the chosen construction at the same stage. The adjoining facts show different frame and sash sections for unclad and aluminium-clad options, so your fitter should know whether you are ordering pine, oak, pine with aluminium cladding or oak with aluminium cladding. Keep the opening dimensions, manufacturing dimensions and selected construction clearly distinguished. This avoids treating three related pieces of information as though they were interchangeable and gives you a firm size on which to base the colour, glazing and design selections.
06
One visual direction is to keep the window deliberately simple. You could choose the design without decorative bars, then select a colour that sits comfortably with nearby frames, doors and facade elements. This approach makes the single-sash outline the main feature and can work well when the surrounding architecture already has strong lines. A handle that feels visually restrained within your available choices can support the same direction.
The contrasting approach is to give the window more definition. Consider one of the combined horizontal-and-vertical patterns, then compare its divisions with neighbouring window layouts, door panels or other repeated architectural lines. The colour could either sit closely with those surrounding features or provide a more noticeable accent, depending on what you want the window to contribute. Because no particular colour palette is fixed in this guide, judge the actual colour option against the materials and light at your property rather than relying only on how it appears on a screen.
Remember to view the decision from both the room and the facade. Indoors, consider how the frame colour and chosen handle will appear together. Outside, step back far enough to compare the whole opening with adjacent windows and doors. If you have selected aluminium cladding, include that material choice in the exterior comparison rather than deciding the colour as though the construction were unchanged. The most coherent result does not have to match every feature exactly; it should follow a clear intention, whether that is a quiet, undivided window or a more strongly patterned element.
07
Compare this product first with our Two-Sash Outward-Opening Side-Hung Window if the main question is whether you want one sash or a two-sash format. If you prefer the two-sash arrangement but want the alternative styling signalled by its name, also consider the Historic-Style Two-Sash Outward-Opening Side-Hung Window. These comparisons keep the same broad outward-opening, side-hung family in view while letting you decide which overall format belongs in the opening.
Our Kombi Outward-Opening Side-Hung Window is another outward-opening side-hung format to compare, while the Historic-Style Kombi Outward-Opening Side-Hung Window provides the corresponding historic-style alternative. If the movement of the window is the point you want to reconsider, look instead at the Pivot Roof Window or the Single-Sash Outward-Opening Vertical Pivot Window. Their names identify pivot formats rather than this product’s side-hung sash, so compare the opening type before spending time on appearance.
A window is not always the correct product category for the opening. Where your plan calls for a patio-door format, compare the Single-Leaf Patio Doors – Outward Opening. The Heritage-Style Single-Leaf Patio Doors – Outward Opening provide the heritage-style alternative. Start with the function of the opening: choose among a single-sash window, a two-sash window, a Kombi window, a pivot window or a single-leaf patio door. Then compare standard, historic-style or heritage-style names where those alternatives are available. Detailed material, glazing, size and design choices should be checked on the page for the specific product you select rather than carried over from this single-sash window. Explore related windows and doors:
Two-Sash Outward-Opening Side-Hung Window, Historic-Style Two-Sash Outward-Opening Side-Hung Window, Kombi Outward-Opening Side-Hung Window, Historic-Style Kombi Outward-Opening Side-Hung Window, Pivot Roof Window, Single-Sash Outward-Opening Vertical Pivot Window, Single-Leaf Patio Doors – Outward Opening, Heritage-Style Single-Leaf Patio Doors – Outward Opening.
08
Our windows and doors come with a five-year warranty. This product is CE marked.
To make the final choice, identify the one priority that would be hardest to compromise. It might be the simplicity of a single sash, compatibility with the planned opening, the glazing requirement agreed for the building or a particular decorative-bar arrangement. Compare your preferred options against that priority first. If two configurations both satisfy it, use your second preference—such as unclad or aluminium-clad construction, pine or oak, colour, or handle—to separate them.
For example, if an uncluttered appearance is the main aim, begin with the design without decorative bars and then compare the material and colour options within that direction. If coordinating with patterned neighbouring windows matters more, choose the closest decorative-bar arrangement first and settle the remaining choices around it. This method prevents a smaller detail from displacing the reason you chose the product. Once you have a preferred configuration and a manufacturing size confirmed with the person fitting it, contact us to discuss your made-to-measure Single-Sash Outward-Opening Side-Hung Window.
QUESTIONS & ANSWERS
Yes. We make this single-sash window to measure. Before choosing the manufacturing size, agree the finished opening measurements and any fitting allowance with the person installing it. Do not assume that the visible opening size and the size you should order are identical.
You can choose pine, pine with aluminium cladding, oak or oak with aluminium cladding. Compare the timber appearance you prefer, whether you want aluminium cladding, and the corresponding frame and sash dimensions shown in the product specification.
The unclad options use pine or oak, while the clad options combine your chosen timber with aluminium cladding. As the listed frame and sash dimensions differ between unclad and aluminium-clad construction, include that distinction when planning the opening and installation.
You can choose a 2- or 3-pane glazing unit. Both are specified with a heat-reflective coating, warm-edge spacer (CHR), argon gas and black rubber glazing seals. Base the pane count on the requirements agreed for your particular building project.
There are seven listed arrangements, ranging from one opening sash without decorative bars to patterns using horizontal and vertical decorative bars together. Choose according to how much visual division you want and how the pattern relates to neighbouring windows.
Yes. You can choose a colour and a handle. Consider the window frame, neighbouring joinery and facade together when selecting the colour, then compare the handle options according to the appearance and everyday use you prefer.
Measure between completed opening surfaces rather than relying on unfinished construction or the size of the previous frame. Ask the person fitting the window to confirm the measurements, fitting allowance and resulting manufacturing size before you place your order.
Our windows and doors come with a five-year warranty. This single-sash outward-opening side-hung window is also CE marked.
Choose the configuration that best matches your opening, appearance and everyday priorities, then contact us to discuss your made-to-measure window.
