Box cords sliding sash windows.
Our classic sliding sash windows operate using cords and weights, and are fitted with the appropriate hardware, which allows the windows to slide up and down during use. Our double glazing and the weather-sealing properties are incorporated with a choice of slender glazing bars and come with an array of finishes (preferred options can be selected from the colour sub-page for example). Our traditional weighted box sash sliding windows are hung using nylon sash cords and have been designed with accuracy and have innovated themselves for the past 50 years.
Detailed drawing (PDF – BOX SLIDING SASH WINDOW)
Our sliding sash windows can be made with different timber, depending on the client’s specifications, project requirements and budget.
PINE – Is a soft white and pale yellow wood, and is typically light in weight. Despite pine timber being one of the most popular timber materials in Europe, pine timber is not as dense as hardwood, however pine timber is highly resistant to shrinking and damage as a result of weather/rain.
MERANTI – Originally from South-East Asia, MERANTI is a timber material which possesses substantial durability and is often found in the low-lying rain forests, or in mountainous regions. MERANTI offers significant advantages, such as being highly cost-effective.
OAK – Oak is typically found in most European countries. Oak also has high durability as a result of its natural substances.
Note: Cill and cill extensions on sash windows are made always using that of hardwood, and are often resistant to weathering (i.e. rain water/UV sun-rays).
High performance double glazing units comes with the sash windows upon being installed. We also have a wide range of products which also include the likes of glass and spacer bars, and we are committed to create these products with precision, class and efficiency.
Sash Lifts and Pulls – allow sashes to be opened and closed. They come in a wide range of available styles and finishes. The top sash is specified as a standard. This sash is available in satin, chrome and brass finishes.
Flich fasterner (catch) – allows the windows to be tightly closed and secured. These flitch finishes also come in satin chrome, polished chrome, nickel and brass.
Vent Locks/Sash Restrictors (Sash Stops) – these can be fitted as addition to flitch fasteners, and can protect offices and in turn elevate security.
Sash Pulley Cords – The sash pulley for cords come also in standard white, satin chrome, polished chrome, nickel and brass
Trickle Vents can additionally be fitted in the sash’s head – details are based on requests
Glazing bars, beadings and sash Horns.
Glazing bars and beadings for sliding sash windows can be ordered as a standard or can be designed – these are based on individual specifications and requirements. The most popular is the “astrogal bar” and these come in different widths, the beadings come in a standard format but can also be manufactured based on the customer’s specific details.
The height of glazing bars depends on the double glaze unit thickness. For instance when a 24mm double glaze unit is fitted then we have to install very thin bars 12mm in height, in turn reducing the thickness of glass can help to achieve better mouldings.
TIPS while taking measurements for box sash window!
It has been recommended for new sash windows to allow for a 84mm frame jab, and for frame jambs to be placed on each side and inserted into the wall and in turn which allows the sash cord mechanism to be covered. Regarding the external view, it has been suggested that we allow a 20-30mm of the visible to be facing, whereas the rest is hidden.
During new openings, when the catnic lintels are installed the facing frame-head can be reduced from 84mm to 40mm (it is the frame’s minimum thickness of sliding sash windows). From an external point of view, the overall framing will look symmetric.