Building materials are articles or items for construction purposes. There are several types of building materials used in Nigeria. They range from simple to complex and exceptionally versatile materials used in building houses, worship centres, hotels, commercial centres, institutions, and so on. Depending on the size of the project, the quantities of each type of materials required can sometimes be overwhelming and computing the numbers often pose a challenge.

Some of the calculators that can help in estimating takeoff materials are those used in computing number of bricks, tiling area, number of wall tiles, number of staircase tiles, etc