Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Span tables for roof purlins and ceiling joists in some social forestry species for timber house constructions.

Abstract

After an introduction discussing design assumptions/limitations, tables are presented of standard sizes of purlins and ceiling joists for housing in some Indian social forestry species. The tables aim to provide a ready reckoner for design, construction and inspection of houses constructed from such timbers. The species included are Abies pindrow, Acacia catechu, Acacia nilotica, Albizia lebbek [A. lebbeck], Albizia procera, Alnus nepalensis, Anogeissus latifolia, Azadirachta indica, Dalbergia sissoo, Gmelina arborea, Picea morinda [P. smithiana], Pinus roxburghii, Pinus wallichiana, Syzygium cumini, Terminalia arjuna.