What is grillage foundation?

The type of foundation that is composed of one, two or more tiers of beams, and concrete to disperse load over an extensive area is known as grillage foundation. It is used to create columns. These tiers are enclosed in concrete and positioned at right angles. This type of construction is used for heavy structure columns, piers and scaffolds. Foundations and grillage look the same. But foundations shift load from structure to the ground. On the other hand, grillage disperses heavy loads over large areas. This is what is grillage foundation known as. Now that we know about grillage foundations, let us learn about steel grillage foundation and timber foundation.

Steel grillage foundation:

Steel grillage foundation is made up of steel joints and beams which contain single or double tiers. The grillage beams are positioned by 25 mm diameter pipe separators and 20 mm spacer bars. Beams are spaced at equal distances to allow the concrete to stay between them properly.

Timber grillage foundation: 

The timber grillage foundation consists of one or tiers of timber. This foundation is beneficial for water-clogged areas where the soil is weak and solid loading capacity is also limited. Timber beams or planks have no concrete between the joints of the timber. The size of the timber planks can be 20-30 cm and the width is 5-7.5 cm thick. The upper layers of the planks can be 7.5 to 10 cm. With the help of timber grillage, a masonry wall can be constructed.

This is all I have to say about steel grillage foundation and timber grillage foundation. I hope you find this helpful.

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