2x4

[snuttjulle]

Now I don't really think you understand.
Rough sawn timber = big thumb
Planed timber = normal thumb
Fine-planed timber = small thumb

Then he had finer names for the thumbs but since I don't remember which was which, I didn't write it down. But it was something like verktum, dansktum, and engelsktum if I'm not completely mistaken.

 

[prototypen]

According to Wikipedia http://sv.wikipedia.org/wiki/Tum
According to the duodecimal system (verktum),
1 verktum = 1/12 foot = 12 lines = 24.74 mm
According to the decimal system (decimaltum),
1 decimaltum = 1/10 foot = 10 decimal lines = 29.69 mm
The English inch, inch, can be denoted as in or with double prime (bis; for example, 30″= 30 in = 30 inches).
1 inch = 25.4 mm.

In Denmark, until 1902, an inch measurement corresponding to 26.2 mm was used. This was also used in Norway (which during a period used an inch of 31.4 mm).
Germany used an inch that corresponded to 26.1 mm ("deutscher Zoll"), as well as several German states having their own definitions varying between at least 23.6 mm (Saxony) and 37.6625 mm (Prussian decimal inch).

Yardsticks for lumber yards were therefore marked London, to avoid confusion with the traditional yardsticks, marked verktum, that village carpenters used.

 

[andersmc]

If we go back even further in time, it was common to have a piece of wood nailed to the church door. This was then an "aln" long, and it was precisely this definition of "aln" that applied in the local village.

 

[Alexej]

Then you had to go with your reglar to the church to check the measurements

 

[prototypen]

Now life is so smart that if you take a 45x95 and split it in half, it becomes a 45x45 (approx.), so that is a standard rule as well.

Protte

 

[Mikael_L]

Yes, if you have an old farmer's saw with a 5mm blade like you, well ...

But all of us who don't have tools from the last century might have to sand off a little more to get a 45x45 ...



But you're right, just don't forget to turn the 45x46 the right way if the measurement is important.

 

[prototypen]

If you have 4 kW that turns around and doesn't bend for a real two-by-four regardless of how fast you feed it, the blade must be 4 mm to prevent wobbling.

Protte

 

[verktygsgurun]

According to Wikipedia [link]
According to the duodecimal system (verktum) was
1 verktum = 1/12 foot = 12 lines = 24.74 mm
According to the decimal system (decimal inch) was
1 decimal inch = 1/10 foot = 10 decimal lines = 29.69 mm
English inch can be denoted in or with double prime (bis; for example 30″= 30 in = 30 inches).
1 inch = 25.4 mm.

In Denmark, until 1902, a measure of an inch corresponding to 26.2 mm was used. This was also used in Norway (although for a time they used an inch of 31.4 mm).
Germany has used an inch that corresponded to 26.1 mm ("deutscher Zoll"), as well as several German states have had their own definitions that varied between at least 23.6 mm (Saxony) and 37.6625 mm (Prussian decimal inch).

Measuring sticks for lumberyard use were therefore marked London, to avoid mistakes with the traditional measuring sticks, marked verktum, that local carpenters used.

This fact has caused problems many times in the past...especially if one ordered a locomotive from a Swedish workshop in England with a certain inch-gauge.

 

[andersmc]

,Then you had to take your measuring sticks to the church to check the dimensions

Not every day, of course, but before important business deals, one surely stood there and checked. But what the "church door alen" was mostly used for was probably as a template to make one's own aln. A piece of wood - a "stick" cut to the right length and graded into 24 inches. A ruler!

 

[Alexej]

Never thought about the name tumstock. You're so used to just saying the word...