
Contents: Clayware sills (B.S.1236).-Cast concrete sills (B.S.1237).-Natural stone and slate sills (B.S.1238).-Coast concrete lintels (B.S.123).-Natural stone lintels (B.S.1240)
Sills and lintels by British Standards Institution. Published by British Standards Institution in 1956. Publication and catalogue information, links to buy online and reader comments.