CONSTRUCTION OF OFFICE TABLE AND CHAIRS
Office table and chairs usually come in set of three, and are designed to fit one into another for convenient storage. Furniture of this soot should be of the highest quality, attractive in design and capable of standing up to many years in use.
The cost of the wood and the amount of time spent on this project may restrict you to making one table only and the chairs. The design chiefly makes use of curved lines for the legs, the base and the lower back rails. The object is to produce stability with a high proportion of the tables weight gathered near the base and narrower lines at the level of the tabletop.
Each table and chair is made in four stages, firstly the two identical side sections are built, these are the fitted with two crosspieces at the top and one at the bottom. Next, the table and chairs surface ground work is cut from plywood which fits into groves cut in all four top rails. Finally the top surface is made up of the wooden block to tiles arranged in a pattern and fitted into the recess between the plywood and the tops of the table and chairs.
The table and chairs frame are assembled with mortise and tern joints. The plywood groundwork is fitted to the frame using housing joints. The woodblocks are butted together and guide down into the groundwork. The table and chairs differ mainly in respect of their size and both the medium and small table and chairs are constructed to fit in sequence into the image table and chairs with the minimum of clearance. The only other difference is that the large and medium table and chairs have narrow front top rails to allow for this clearance, the smallest table and chairs having the full rails in making one table and chair only, a full rail is used and one more lower cured crosspiece is added to close of the opening at the front.
A good quality wood should be used to bring about the best result , such as afromosia or Burmese teaks, but these hardwoods can be expensive. As an alternative, agba or Brazilian mahogany can be used. Old oak or mahogany maybe salvaged from discarded furniture such as old solid wardrobes and bed boards. This can be an excellent source of cheap tough quality wood but one has to be persistent in one’s search, schools sometimes get ride of old oak desks and classroom fittings and woods for construction can be chosen from there.
TABLE OF CONTENT
2.0 LITERATURE REVIEW
2.1 TYPES OF TABLES AND CHAIRS
2.2 MATERIAL OF CONSTRUCTION
3.0 HAND TOOLS
3.1 MACHINE TOOLS
4.0 CONSTRUCTIONAL PROCEDURE
5.0 DISCUSSION/ CONCLUSION
Construction of office table chairs is meant to suit the office in which the demand is made. The project demands that we construct office table, semi executive chairs and visitors chairs. The materials of construction should be a strong one since it is a product of wood. It means that strong wood like mahogany or afromasia should be used for the construction to ensure long lasting of the items being made.
The working of wood was practiced in prehistoric times through more recent countries, it has been on important occupation in its many branches and man skilled in using his hands to make things from wood has been an honoured way of providing fittings that ensure confortability even in our hand and offices. With modern methods of transport timber may be brought from almost any part of the world. This means that we can now use woods that were unknown to carpenters even only a few years ago. Many of the traditional and well known woods are still available, but other have been added to them and it is sometimes difficult to know the characteristic and suitability of the woods we are being offered. It was sometimes difficult to identify even the comparatively few woods in general use up to a few years ago, new it is increasingly difficult, particularly if you want to use a common name for instance, there are some widely different species that are all called mahogany. Even prefix in front of it may not be sufficiently specific. A name like Brazilian mahogany can be used to embrace a group rather refer to one type. There are scientific names which are essential if you need to state exactly which wood you mean. But if you use them when buying wood it is unlikely that the average timber yard man will know what you are talking about- fortunately, the woods on offer are usually sufficiently limited in range for each type to be identified by a common name, and the seller will probably know enough about the characteristic to tell you have a new wood compares with another you know already- there are many thousands of different species of tree yielding timber suitable for varies branches of woodworking, but these available at any particular time or place will be comparatively few.
Anyone with a little experience can identify some woods by their appearance if only in very general terms. But even amongst the common woods there are varieties that show subtle differences when you work them. The only true way to identify woods is by microscopic examination, and as most of us do not have facility to do this, we have to take the world of the suppliers.
Trees can be broadly divided into hardwoods and softwoods. In most cases that is a fair description of relative hardness, but there are a few softwood harder than some hardness. Most softwoods come from coniferous, needle leaved trees that keep their leaves during the writer. Hardwoods have broad leaves and in more severe climates these tend to be shed during the winter softwood trees are commonest.
In the cooler parts of the world, while many hard woods grow in the tropics, but there is a considerable range of both varieties in all sorts of climate. Softwoods grow quickly, maturing in 20 to 50 years. Some of them are grown to be pulped and made into newsprints. Hardwood may take handreds of years to grow large enough for conversion to timber. The relative density of hardwood are so dense that they will not float in water, building or similar work. In most of air construction works hardwoods are preferred to softwoods for durability and toughness.
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