estadal

1

In Spain, two units. After 1801:

a unit of length = 4 varas = 12 pie, about 3.34 meters.
a unit of area, = 16 square varas = 1/576 fanegada, about 11.18 square meters (about 13.37 square yards).

In the province of Segovia, the square estadal was described in 1886 as being 3¾ varas on a side.¹ In the province of Toledo, an estadal was the area of a square 3 2/3 Castillian varas on a side.

1. Dirección General del Instituto Geográfico y Estadístico.
Equivalencias entre las Pesas y Medidas Usadas Antiguamente en las Diversas Provincias de España y las Legales del Sistema Métrico-Decimal.
Publicadas de Real Orden.
Madrid: Imprenta de la Dirección General del Instituto Geográfica y Estadístico, 1886.

Page 46, under “obrada de tierra”. Page 51, under "fanega supeficial".

2

In Nicaragua, 11.28 square meters (about 13.49 square yards).

3

In Colombia, article 17 of a law of 12 October 1821 made the estadal = 5 varas, about 4.2 meters (the Castillian vara was then in use in Colombia). Article 3 of a law of 26 May 1853, again defined the estadal as 5 varas and said that as a unit of area it contained 25 square varas.