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In the case of framework of false ceiling, it must be sufficiently strong to take its own load plus the load of one or two workers to work on it. For designing the framework, it is necessary to consider the dead weight of all members of false ceiling and the span of space. First of all, framework is done. Generally this is done with the help of steel or wooden members depending on the span and the cost.

First the rafters are fixed depending on the structural requirement, then further it is divided into small areas depending on the available sizes of the materials to be fixed and the rigidity of substructure. Sometimes instead of angle iron, wooden buttons can be used for fixing the material.

In the case of soft materials again we need T or channel similar to wall lining to fix the material and if the span is longer and section of rafter is smaller than the rafters can be given hanging supports from the structural roof.

Nowadays fiber glass is used on a large scale for appearance and other purposes like artificial sky of a planetarium which is fixed directly with main structure with the help of some special carbohydrates gum-materials.

Sometimes gunny bags or clothes are stretched with the help of wires or ropes or even on the wooden frame depending on the span. The construction of frame for false ceiling also depends on the site conditions, materials available, requirement, cost and other members, available along with main structural members.

It is not difficult to make one’s own draperies. They should be cut extra long so that they can be altered and also to give an extra allowance, because they shrink from cleaning and from exposure to the air. An extra half a meter of material can be concealed in a curtain making double hems at the top and bottom to meet such situations. Draperies and curtains of all types should be made to a full length, a width or more of the material being allowed for each side of the window.

If the window is narrow, it is enough to have drapery on only one side. An ample quantity of a cheaper fabric is far more effective than a narrow curtain of more costly material.