वास्तु मण्डन (मण्डन सूत्रधार - गृह, राजप्रासाद, दुर्ग एवं नगर-वास्तु सटीक)

Ch. III - Durgādilakṣaṇam 89
41. That rod which is eleven cubits long, is known as Gajabhīma,
(while) Yugmabhairava has twelve cubits long rods.
42. Vahni is known to have thirteen cubit long rods and Yamadaṇḍa
has fourteen cubits. Mahāraudra has 15 cubits long rods and
these eight fall into the Bhairava category.
43. Markaṭī falls into the Bhairava category and it is auspicious if its
middle part is three hands in length; at its back, a rod
measuring 32 fingers in length is to be fixed.
44. A sixth Aṅgula rod should be fixed on the back side of the
Piṇḍa(base) and the width of the rod will be two Aṅgulas (Kalāṅgulas).
The front part of the base(Piṇḍa) will be four Aṅgulas and the back
part should be made of strong wood.
45. The hole at the back of the rod will be measured at a distance of
four Aṅgulas, Markaṭī should be firm at the base(Piṇḍa) and it
should be equal to eight Aṅgulas.
46. Both the rod and the lever (Markaṭī) should be made strong
with iron or leather belts. The front part should be made of
iron and measure eight Aṅgulas.
47. A bandage used as a catapult (Gophaṇā) will be eight hands in
length and the material will be made of silk thread. The cap
will be two Aṅgulas in breadth and double the size in length.
48. The iron cage (Pañjara) will be three hands and four Aṅgulas in
length (or fourfold), and it may be fitted with hands and claws for
bringing stones.
49. The Markaṭī will be two hands in diameter and its breadth will
be thirteen Aṅgulas. The two pillars of the Pañjara will be known
as Kulinda.
50. There will be a hole on the top of those two rods/and on the
back-side also, through which arrows are to be shot. Strong
metal nails will support this Pañjara (cage).
51. The Pañjara should be filled up with stones, metals, and it should
be made strong with the help of nails and leather covers.