Thread: Conversions

Google is your friend.

Do i just do straight coversion because ive been told a 2x4 is 90x35 but thats not 2 inchs by 4 inchs


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Go to this site and took under the various timber categories. They have the commonly available metric sizes in both rough sawn and DAR

https://www.nst.net.au/#pricelist

Using your examples, go to that site and look up the closest to the numbers below

1 x 12. = 25 x 305
1x2. = 25 x 50
2x 2. = 50 x 50
1x 6. = 25 x 152

Originally Posted by Lappa

1 x 12. = 25 x 330
1x2. = 25 x 50
2x 2. = 50 x 50
1x 6. = 35 x 152

1 x 12. = 25 x 330 ???
1x2. = 25 x 50
2x 2. = 50 x 50
1x 6. = 35 x 152 ???

I find it best to work in imperial and save all the mucking around. If you haven't done it before it is the same as I had to do when metric arrived, an architect gave me some plans for my workshop and it was all metric so I had no choice.

Rather than do a precise conversion I would take the plans as a design guide and redo them in metric sizes that suited my needs.
Wood work doesn't save you money but it does give you a truly unique piece.

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It is far more ugly than discussed.

A 2 x 4 is, in metric 50.8001 MM by 101.6002 MM. But a 2 x 4 isn't really 2 x 4. A 2 x 4 is 1½ x 3½ or 38.100075 MM by 88.900175 MM. Further complicating the decimal word is anything by 1. The one is really ¾ or 19.0500375 MM.

The best advice is, as DaveVman said, just re-do the plan in the common metric dimensions. If you have a drafting package for your computer it is a big help.

Work in metric - it's a dozen times easier.

Originally Posted by cava

1 x 12. = 25 x 330 ???
1x2. = 25 x 50
2x 2. = 50 x 50
1x 6. = 35 x 152 ???

corrected

Ok sounds good i think sticking to metric is a better idea


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Originally Posted by rrich

It is far more ugly than discussed.

A 2 x 4 is, in metric 50.8001 MM by 101.6002 MM. .......

Hi Richie

Only someone in California would measure timber to four decimal places of a millimetre !


Cheers

Graeme

Originally Posted by rrich

It is far more ugly than discussed.

A 2 x 4 is, in metric 50.8001 MM by 101.6002 MM

No it's not. The inch has been defined as exactly 25.4mm

Originally Posted by rrich

But a 2 x 4 isn't really 2 x 4.

Correct.

It's a 4x2.

Originally Posted by elanjacobs

No it's not. The inch has been defined as exactly 25.4mm

True, Elan

But only since 1-1-1964. Current standard doesn't apply to Richie's old stock !


Cheers

Graeme