What materials were used for construction?

The Harappans used a variety of materials for construction, with bricks being the most common. They made standardized, kiln-fired bricks that were used to build houses, roads, and walls, ensuring durability and uniformity. In addition to bricks, wood and reeds were used for constructing roofs and other structures. For some buildings, mud and stone were also used. The use of these materials allowed Harappan cities to be well-planned and durable, demonstrating their advanced knowledge of construction techniques.

This question related to Chapter 6 Social Science Class 6th NCERT.
From the Chapter 6. The Beginnings of Indian Civilisation.
Give answer according to your understanding.