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TIMBER FLOORS.

Solid Tongue & Groove Hardwood Timber has been used for centuries as a timber flooring material and its unique and varied appearance ensures it will always have a place in both modern and traditional interior design.

Kiln Dried Hardwood Tongue and Groove Flooring has been used throughout Australia for over 100 years.

The flooring has a structural quality, which means it can be laid directly to the floor joists, over concrete, plywood, battens or a number of other surfaces. It is available in secret nail or top nail profile and comes in a huge cross section of colours, price ranges and widths.

Please remember, while the general colour of the timber will be determined by the species, natural variations can and do occur. Keep in mind that timber is a natural product and no matter how big a sample you have seen, your floor WILL BE DIFFERENT from the sample and it will be completely unique. 

The true colour of a floor will shine through, only after it has been sanded and coated with your chosen finish or coating. And even then, the colour can mature over time - lighter floors are particularly susceptible to a “honey-ing” effect of their natural structure.

GRADES OF TIMBER

This terminology refers to the amount of feature visible in the timber, and you will need to decide which grade of timber you'd like, when it comes to purchasing timber flooring. Timber features are visible through appearances occurring naturally in the timber that are caused by knots or knotting, insects, fire, damage and other occurrences. Remember it is the natural features of a timber floor that gives it its character, natural beauty and warmth.

Generally most timbers come in three grades, Contemporary, Standard or Natural.

 Contemporary (also known as Select or Low feature)

This grade of timber exhibits minimum features, so it allows a sleek minimalist look to the finished product. It is commonly referred to as the premium grade as the timber flooring market tends to prefer that the amount of visible feature to be limited.

Colonial (also known as Medium feature)

This grade of timber is a mixture of boards that have more features visible. You will get a varying degree of Contemporary-looking timber in this grade of floor after it's been installed. This is because a length of timber may only have one small feature in its entirety, so when it's laid, the overall effect can be of contemporary boards with a bit of character about them.

Natural Feature (also known as Rustic or High Feature)

This grade is a mix of the more heavily featured lengths of timber that do not fit within our other grading. Customers tend to favor this grade of timber when they are looking for a rustic or old world or natural appearance.

WHICH TIMBERS TO CHOOSE.

Natural timber floors, just like all quality products, must be handled, stored, installed and maintained with care to ensure excellent quality.

This section answers many of the most asked questions about tongue and groove natural timber floors and highlights important precautions and considerations which you should discuss with your chosen flooring supplier, builder and installer before you proceed.

Experience over the years has shown that where dissatisfaction with a timber and groove floor occurs, simple precautions and sensible care have usually been ignored at some stage during the delivery, on site storage, installation or general care of the floor, or that customers are unaware of the consequences of their choices and decisions.

WHICH TIMBER TO CHOOSE

Choosing the right timber floor for your home will probably be the most difficult step, only because of the huge selection from which you can choose from. The following information will assist you to understand the alternatives and help you to ask the right questions when discussing the various options with your flooring supplier.

TIMBER COLOUR

This is purely a personal and aesthetic choice. The general timber colour will be determined by the timber species. However, even within one species there will be natural variations. Some species exhibit only small variations while others vary greatly. Remember timber is a natural product and no matter how big a sample you have seen, your floor will always be different from the sample and completely unique.

The true colour of a floor will only become evident after it has been sanded and coated with a chosen finish. A darker floor will make the room appear darker, and may therefore require more available daylight and/or artificial light sources. Lighter coloured floors tend to show dirt and show less visible marks than darker floors.

TIMBER FEATURES

Depending on the species chosen, various mixes may be available. You may prefer a mix which exhibits the maximum variety of natural features including colour, knots, gum vein (generally dark lines) and insect markings to provide unique visual impact, or you may prefer to choose a mix which offers maximum continuity and consistency with few outstanding features. Discuss the normal variation encountered in your chosen species and also the available options with your flooring supplier.

BOARD WIDTH

Tongue and grooved flooring is generally supplied in nominal profile widths of 75mm, 100mm or 150mm.  (Actual cover width of boards will vary depending on the profile type) The width of the boards and the direction they are laid will affect the look of a room. Generally boards laid along a room will the make room look longer while boards laid across a room will make it wider. Other factors such as the subflooring materials may control the direction the boards must be laid. The wider the floor board the greater the natural shrinkage/expansion across the face. Therefore during dry periods wider boards may exhibit slightly wider gaps between boards and cupping may also be more apparent. Both of these conditions generally disappear after a reasonable period of normal humidity/ weather conditions.

NATURAL SHRINKAGE AND EXPANSION

It’s very important to understand that tongue and groove timber floors are not synthetic or manmade, but are a completely natural material which is sawn, seasoned and machined to a suitable profile. Natural timber is hygroscopic, that is it continually takes up and gives off moisture to keep in balance with its surroundings. This results in a process of natural shrinkage and expansion. Depending on the timber species chosen, visible shrinkage and/or expansion may take a day, a week or even months, resulting in the gaps between floor boards opening and closing depending upon the weather, the season and local influences. To reduce the degree of shrinkage and expansion, today's timber flooring is generally seasoned or kiln dried to average moisture content of between 10% and 15%. This is considered to be a good starting point for the majority of installations, but as you will read later, many other local factors influence the atmospheric moisture content around and in you your home and therefore affect your floor.

Choosing a Timber Finish

HOME DESIGN CONSIDERATIONS

Shrinkage and expansion of timber floor boards is a natural and cyclical process. The degree of movement depends on the surrounding changes in atmospheric moisture content and therefore is generally controlled by seasonal weather conditions. Changes are most evident during long periods of either dry or wet conditions. However, local conditions also have considerable influence. Good ventilation under your floor is a very significant factor in a successful installation. Minimum ventilation recommendations may not be adequate for your site. Excessive humidity in the under floor area can be caused by the lack of sufficient cross ventilation or from damp soil conditions arising from poor drainage. Ensure that water from gardens or storm water does not drain under the floor area and that no water resides in the under floor area. Air conditioning and heating systems dramatically reduce the general moisture content within a home. Your flooring specialist should be made aware that these systems are to be used. It may be necessary or advisable before laying/ coating to operate these systems and to acclimatize the flooring to the average conditions in these situations.

Shutting a house up when away on holidays for long periods can also create abnormal humidity conditions. Full length windows, large glass areas which admit direct sunlight can create sunroom conditions with high temperatures and low moisture conditions causing flooring to shrink. Direct sunlight will also cause colour changes to the timber, so moving rugs occasionally, and the use of curtains or blinds are a good idea. If your home is located close to a body of water such as the ocean, a river, lake, dam or any other wetlands, or if it will experience prevailing winds which may direct particularly moist or dry air towards your home, special moisture control measures may be required. Expert advice should be sought.

TRANSPORT AND ON SITE STORAGE

It is most important to ensure a suitable on site storage location is available before delivery is arranged as incorrect storage will damage the timber and/or delay installation.  All flooring timbers should be protected from the elements and direct sun and where the atmospheric moisture content is similar to the level expected in your house. In all locations the timber pack should be stored at least 200mm off the ground/concrete, with even supports to maintain straight boards and to allow good ventilation to all pack faces. A moisture barrier between the ground and concrete floor and the underside of the timber is essential.

Do not store timber in plastic wrapping exposed to direct sun as this limits air circulation and exposes the timber to extremely high temperatures which causes sweating. Do not store timber on a fresh concrete floor or in a recently cement rendered room as the timber will absorb moisture from the dying concrete.

INSTALLING AND ACCLIMATISATION

Depending upon the situation it may be necessary or advisable to acclimatise the flooring to its proposed location prior to fixing. By discussing all points on the check list with your chosen flooring specialists they will be able to advice on the need for on-site acclimatisation as well as suitable methods and timing. It is not advisable to install acclimatised timber flooring during or just after extended periods of wet or dry weather. In this case allow a period of normal weather conditions before fixing.

Additional information on acclimatising timber flooring is also available in a leaflet produced by your local State Forests Administrations.

It is preferable to lay flooring only after all 'Wet Trades' such as brick cleaning, rendering, plastering and tiling have finished. Plastic laid over the floor to protect it from wet trades often raises the moisture content of the flooring timber and can be counterproductive. Close monitoring is required in this situation. Ensure expansion gaps of 10mm to 12mm are left between boards and the wall. These are usually covered by skirting boards or filled with cork strip.

Before any installat on, ensure that your contractor has checked the flooring moisture content.

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