Timber has many uses including for making doors, windows, furniture, flooring, roofing, and in transportation applications like railways and boats. It has advantages of being light, easy to work with using simple tools, a good insulator, and can last for hundreds of years if protected. However, its disadvantages are that it is combustible, susceptible to decay and insects if exposed, and undergoes swelling and shrinkage with humidity changes.

11. Uses of timber
• For making doors, windows & ventilators.
• Used as flooring & roofing material.
• Used for making furniture
• Used in making agricultural implements
• Used in the manufacture of sport goods, musical instruments
• Used in making railway coaches,wagons,buses,boats etc
• Used in making sleepers for railways, fencing poles, electric
poles,footways,bridge floors.
• Softwood is used for manufacture of paper, card boards, wall
paper etc

12. ADVANTAGES OF WOOD
• It is relatively easy to handle & can be planed,sawn &
jointed with simple carpenter’s tools.
• It is easily available & can be quickly transported by
simple means.
• It is light in weight.
• The floor joints in an average dwelling weighs less than
rolled-steel beams of equal strength.
• The individual units of wooden dwelling are light
enough so that they may be assembled by a small crew
of men without special machinery.
• Boards may be cut rapidly by a saw & fastened firmly
together with nails.

13. ADVANTAGES OF WOOD(contd…)
• It is a good insulator of heat & sound.
• When properly protected timber structures may give
good service for hundred of years.
• It stands shocks & bumps, a good deal better than
iron & concrete.
• On account of its light weight, timber is generally
preferred for building works in earthquake regions.
• Repairs, additions & alterations to timber
construction are easy.
• It is considered to be an ideal material of
construction in sea water or marine works as it can
resist corrosion.

14. DISADVANTAGES OF WOOD
• The greatest disadvantage is its ready
combustibility, which can be diminished but
not eliminated even by expensive treatment.
• Frame buildings built closely together present
a serious conflagration hazard.
• Timber is destroyed by decay induced by fungi
& insects that feed upon the timber under
favourable considerations.
• Timber swells & undergoes shrinkage with
changing atmospheric humidity.