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The invention of the Timber Sash Window has often been credited to Robert Hooke even though it is inconclusive. However, it is the oldest surviving window and was first installed in England in 1670. It is made of movable panels or “sashes,” which can either be one or more. Traditionally, the windows are made of a single pane, but they now are made with an individual sheet of glass or sheets if it is double glazing glass.


How to Facilitate?

To facilitate timber sash window starts with balancing heavy steel to the glazed panel, cast-iron sash weight, lead, or counter-weight merged within the window frame. The sash weight is attached to the window by a chain or braided cotton sash. It is worked on a pulley at the top of the frame. And sometimes, spring balances are used. When a cord is broken from the window, the only means to repair it is to disassemble the window frame parts.

Usually, the sash window is fixed with simple hinges, allowing the window to be locked into hinges on one side. In contrast, the other side counterbalance is detached, enabling the window to be accessible for cleaning or maybe for escape.

Sash Window Sizes

In the 21st century, sash window measurement varies, especially in this 21st century, and sizes are based on your desired ones. However, below are some general measurements that are commonly used:

From a general perspective, sash windows are available up to the following maximum sizes:

  • Slim/intermediate sash option 1600mm x 2400mm
  • Slim/intermediate sash option 1500mm x 3000mm
  • Mid-rail/slim sash option 1400mm x 3000mm

Types of Sash Window

  • Bay and combination windows
  • Arched head windows
  • Unequal split windows



Timber entryways are produced using a scope of timbers that is both solid for joinery and reasonably sourced. It fits cold climate conditions and has choices that are valued inside everybody’s spending plan while giving variable options in color to suit practically any door design.


Timber Front Door Designs:

Classic Entrance Doors

At the cutting edge of home security, all entryways incorporated with multi-point espagnolette bolting and include an ERA Fortress 3 Star Neighborhood Watch affirmed chamber for complete, true serenity. It has a door thickness measured at 68mm, which is almost an inch further than standard doors available. The consoling strong quality feel is certainly unrivaled.

Contemporary Entrance Doors

These solid doors include thermally protected panels with fiberglass fortifications and aluminum adjustment layers. This guarantees the most significant level of warmness and home security. Complete with big hinges, a high-security handle worked multi-point locking framework, and ERA 3 Star Secure Neighborhood Watch Approved Cylinder. These doors are the ideal home security protection.

How to measure for replacement Timber Sash Windows and doors?

  • Step 1: Measure the width in three spots brickwork to brickwork from the outside.
  • Step 2: Measure the height in three spots brickwork to brickwork from the outside.
  • Step 3: Now take the littlest estimation of the three widths and statures and take off 10mm. This is the right size you need to arrange. Any little holes or spaces can be filled in with extending silicone, pointing, and foam.

Note: If a width or height measures beyond 1800mm, at that point, you should add 15mm rather than 10mm.

The benefits of timber sash windows and front doors last longer for up to 60 years. Aside from that, they help you save money from unnecessary spending.

Casement windows are a familiar window in the United Kingdom, especially in London which can be found in modern and the usual house. The casement window has done a great job in replacing the conventional window and this, giving the home a new outlook. The popular one in London is carved from Scandinavian kiln-dried redwood which is regarded as the standard due to their durability, while others are available based on request.


The main thing about the casement window is choosing the one that fits your need and suits your taste. Let’s discuss what the casement window is.



Casement windows are windows designed like a door with hinges present on the opposite side of the frame. The purpose is to build a cranking system, where there are upsides for casement windows above edges of a different kind. Casement windows allow easy flow of ventilation, clarity, and it is easy to maintain.



Casement windows have no slats or bars because of the frame that has an open picture outlook. So there is slats or bars over the glazing, so, it has an unobstructed view. The advantage of this portrait view is that it can be opened for fresh air into the house.



The casement window is an open window; this makes it easy to clean the window pane outer part smoothly and efficiently. Aside from that, it is easy to open the window frame easily, and so it is with the timber frame where you can easily clean it with water and wipe



Casement window frames are highly efficient in term of energy use; it is entirely different from sash that has a track for sliding up and down; there is no track in casement at all. It had a very tight lock when it closed; this closed lock helps to prevent heat or cold regardless of the season. Aside from this, they are ideal when it comes to being an insulator, and it tends to reduce heat loss, lowering energy bills if it is paired with double or triple glazer.



Casement window frames allow ventilation circulation in the house if they are fully opened. You can also determine the extent to which you want the window opened. What this means is that you can push it to the size of your wish due to the hinges on the frame. Aside from this, it has a different style and finishes and variety of structures which include the following: 


  • Lipped Casement Windows highlight refunded openers which lip over/cover the front substance of the window outline. The lipped style of casement has inceptions in Britain dating to the 1950s.


  • Tilt and Turn casement windows are a style which works on a double pivot system that permits the window to tilt from the base opening into the room from the side and top which gives secure ventilation.


Finally, casement windows work on all types of property.



Timber Sash Windows have prominent in the production of the traditional bespoke window for more than 30years. Their window has been able to satisfy architects and realtors’ demand because of its quality in its appearance and classic features of a single-glazed window. Also, the timber front doors are strongly built to last longer and can be re-sanded as requested. It is usually trimmed on both sides 10mm, which is different from doors whose veneer are 3mm less thick. Below is some information about the timber sash window and timber sash from doors.


Timber Sash Windows

Timber sash windows have always been one of the classic aspects of a home in the UK from the ancient period to the modern home construction. It is one of the oldest sashes carved from a paned window. Below is some of its quality:

  • Bespoke and Customised:It is designed according to client taste, and it is customized to make architects look creative during construction.
  • Timber Choices:It is created from multi-layered engineered timber.
  • Glazing Choices:The window is double glazed. It can also be tripled, styled to acoustic glazing. However, it is single glazed mostly for aesthetic purpose.
  • Colour Options:It can be painted, stained, and can have a dual-color that can rhyme with the exterior or interior façade.
  • Shielded from the Elements:The windows are protected to remain firm for weather conditions and thermal purposes.
  • Window Security:The window has been thoroughly tested for security standards, and this test was done independently of BMTRADA.
  • Fire Resistance Windows are available:The window has been infused with insulation needed to make it fire resistance, and currently, the producer is in partnership with Vetrotech.


Different Type of Sash Window


The Venetian sash window has two outer panes, and the center sash slide open. It is also a triple sliding box sash and feature of slender mullions. Venetian sash design has a conventional measure of 176mm deep, and 142mm deep slim option, and it can be used with pre-tensioned cord or metal chains. Also, it is double-glazed, and the installation is done with sufficient draught carved from quality ironmongery. It has a fully furnished timber standard.


This is an old sliding sash that started during the era of Georgian, Victorian, and Edwardian. It has the feature of slim sightlines and a durable window style. However, it has maintenance due to swelling, rot, and woodwork warp, and careless painting.


Hidden Sash is mainly for commercial and residential purposes, and it has a visible surface of 2-1/2 from the outer view. It is tagged as a modern Sash because of its aluminum nature. It has straight, curve sashes and advanced security hardware, which is optional. Below is the required standard for a house: Available

Performance & Technical Specs: 

AAMA Rating @ 59″ x 99″: AW-PG55 | AAMA Rating (reinforced): AW-PG90

Design Pressure: 55.14 psf | Design Pressure (reinforced): 90.23 psf

Air Infiltration @ 6.24 psf: 0.06 cfm/ft²

Air Exfiltration @ 1.57 psf: <0.01 cfm/ft²

Water Resistance: 15.04 psf

Uniform Load @ 82.71 psf: <0.01”

Forced Entry: Type B – Grade 10

U-Value: 0.30 | STC: 48 dB

Maximum Glazing Thickness: 1-13/16″

Profile Thickness: 1/16″ (1.6mm)


Timber Front Door

Timber front doors are highly sophisticated as they are robust with adjustable hinges that serve as security forms. It features hook bolts and deadlock and different kinds of innovative designs that provide good security to bring peace of mind.

The timber window and front door’s reality is that they are designed for fashion and taste; however, it comes with security in a home.