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Fri-Die Construction Sets

Fri-Die was a simple system where angle girders were the main structural elements. It was produced in Germany around the time of the Second World War.

Manufacturer / Distributor

Made by an unknown firm in Westphalia, Germany

Info from the Metal Constructional Systems Database for FRI-DIE (Ref:FRI)

System Type
Hole pitch >12.7mm
after World War Two
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
Hole Pitch (Spacing) (mm)
Diameter of holes in Strips(mm)
3.8 (see comment *1)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
--- (Screwed Rods or Bolts are used as axles.)
Types of Nuts and Bolts
Nuts: hexagonal
Bolts: tapered cheese (slotted)
(see comment *2)
Material/Finish of Nuts and Bolts
Steel with a Nickel plated finish
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

Simple system with steel parts either blackened or painted red & blue. Angle Girders are main structural elements, also 2 Flat Girders. *1 Some 3.0. *2 Also round head Bolts.

Pages from the 'Other Systems Newsletter' which contain information on this system are shown below. They can also be downloaded to your computer if desired here

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The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided

Below there are manuals/leafets and photos which can be downloaded by clicking on the appropriate image.

A Fri-Die model sheet
Unfortunately the bottom of the sheet has been torn off
(Added 14/11/2018)

Various photos of the Fri-Die construction system
(Added 14/11/2018)