Poulsen method of roof framing for carpenters and builders
Subtitle: containing practical information and tables for laying-out roofs and obtaining the lengths and cuts of all rafters without the use of the steel square
By: by Harry Oscar Poulsen.
Publisher: Poulsen institute publishing co.
Published: 1925
Place of publication: Chicago
Language: eng
Number of pages: 89
Subjects: Roofs.; Roofs -- Tables.
Notes: Leaf inserted between pages 30 and 31.