Ashlar masonry

In ashlar masonry, square or rectangular blocks that are used are dressed and have an extremely fine bed and end joints. 

i) Ashlar fine tooled

It is the finest stone masonry.  The beds, joints, and faces of the stones are chisel dressed to remove all unevenness and obtain perfectly horizontal and vertical joints.

Fig4. Ashlar Fined tools

ii)  Ashlar rough tooled

The beds and sides are finely chisel dressed but the exposed face is dressed by rough tooling.

iii)  Ashlar rock faced.

The exposed face of the stones is not dressed but is kept as such to give rough facing.

iv)  Ashlar chamfered  

 It is a special type of ashlar rock-faced in which the strip provided around the perimeter of the exposed face is chamfered at an angle of 45° to a depth of 25 mm.

Fig. 5. Ashlar Chamfered

v) Ashlar block in course

It is immediate between ashlar and rubble masonry. Faces of each stone are hammer dressed but the vertical joints are not as straight and fine as in ashlar masonry.

Vi) Ashlar facing 

It is provided along with brick or concrete blocks to give a better appearance. The outer faces of the stone are rough tooled and chamfered.