1917

Andreas Bschor bought the sawmill with 3 frames in the Bahnhofstrasse, Höchstädt from company Anton Rupprecht. The Manager at that time was his brother Johann Bschor.
land area: 12.000 sqm
employees: 20

1922

installation of a horizontal frame. Frame operator until 1929 was Leonhard Mayr.

1926

already with 13, Wilhelm Bschor, the future successor worked in the facilities. 

1930

purchase of the todays factory premises at the Kohlplatte.
land area: 50.000 sqm.
construction of a new sawmill with two frames and railway side track. The sawmill was put into operation in July 1930 with incorporation of a carpentry. The first carpenter was Joh. Nübel
power supplies: diesel engine 60 KW
annual cutting: about 4 to 5.000 solid cubic meters
employees: about 30

1935

construction of the first drying chamber and an own steam power supply with a 80 hp steam machine.

1939

Wilhelm Bschor passed the examination for the degrre of master for carpentry

1941 - 1948

production of wood for woodgas powered vehicles with a annual production of 20.000 solid cubic meters - daily about 80 to 100 solid cubic meters
employees: 18
wood charcoal production with a charcoal kiln. annual production about 1000 solid cubic meters

1946

Wilhelm Bschor returns from the captivity as a prisoner of war and takes back the management.

1949

installation of a four sided planing machine Blitz 10.
permanent modernization and mechanization of the sawmill.

1965

Michael Kimmerle married Wilhelma Bschor and started to work in the company.

1966-1970

intensive development on the lumber trade

1971

the sawmill  got equipped with an electrical controlled RUNDHOLZABLÄNGSTATION
annual cutting: about 20.000 fm
employees: about 30

1974

construction of a large capacity drying chamber with space of 800 cubic meters

1976

the first bigger activities of direct importing from western africa.

1980

construction of the administrative building
installation of a shavings combustor "KONUS" for heat production

1982

cooperation with a sawmill in indonesia

1984

a major fire at the 4th of april destroyes the whole sawmill.
construction of a sawmill in Ghana in cooperation with company E.E.A.S., KUMASI - the sawmill was put into operation in 1985

1986

26th of July - the rebuild sawmill was put into operation

1992

closing of the sawmill

1996

Glue Laminated Beams - annual production of customer requested legnth of about 8.000 solid cubic meters

1999

about 15.000 solid cubic meters of glue laminated beams are commissioned

2001

the Pfeifer Group took over Konstrukto
about 16.000 solid cubic meters of glue laminated beams are commissioned

2002

the produkt range was expanded with 3-ply shuttering panels of 21 and 27 mm thickness as well as singly-ply and three-ply panels.

2003

about 30.000 solid cubic meters of glue laminated beams are commissioned

2004

taking over of the gluelam commissioning from Kaufmann Holz GesmbH in Bobingen. Installation of a semiautomatic commissioning facility from company H.I.T., D-Ettringen.