divisible by two
| Techniques infobox | |
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| Image |  |
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| date | |
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| materials | |
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| lifecycles | |
| parts | Frames |
| techniques | |
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| reversible | true |
Introduction
Frames of length 2, 4, 10, 20, 30, 40, and 50 feature evenly divisible mounting holes. These are often used to create frames of uniform spacing for shelves, vehicles, furniture, etc.