measurements ono the plans

[Vili]

Hi there

Looking at the plans of a tiki38 I see that there is sometimes differences between the written measurements and the one i measure with ruler. For example on the plan its written 1420mm...but if i measure with ruler it gives 143.7 mm, the scale is 1:10 so, this gives 1437 mm.

Which measurement should one rely on, the one measured by ruler or the one written on the plan?

[Budget Boater]

Do not measure the plans and expect accuracy. Follow only the written numbers provided.

[Éric Bouvéron]

Unless if on the sheet plan it is given as a size design (mast foot was an exemple) rely only on measurements. Also, I suggest that you take a good care with the two indications:one is metric, the other imperial. You may use either, but don't take one for the other.

[Vili]

I dont get you!

I should rel

y should only rely on the provided measurements and not on what my ruler shows...correct?

[Budget Boater]

Throw away your ruler

[Éric Bouvéron]

Note the measurments on the plans,and report it on what you need to cut.

If the plan asks for a 12 inches by 4 inches plywood piece, then mesure this size on your plywood.

[Ian R]

Here's something based on working (40 years) to make actual things;

1) Never scale off plans for manufacture, they may be ok for estimates

2) Never trust architects or any one else to be 100% accurate or right