How to Lay Out a Square or Rectangle with Correct Diagonal
Side 1
In
Side 2
In
To setout a square or rectangle, make sure the diagonal is the correct length for the side lengths.
Enter 2 sides and hit Calculate to re-draw with correct diagonal.
Enter inches as decimal or fraction with space or slash. eg: 120.75 or 120 3/4 or 120 3 4
In the diagram, if the diagonal is for side lengths of
and
the has 90° corners (right angles) and is 'Square'.
Side 1
Side 2
Lay out a Square or Rectangle By Yourself - No one to help read the tape for the diagonal while you adjust the line?
Reference Length
Side Length
Batterboard Gap
Measured Diagonal
Adjust
If you're laying out a large square or rectangle (with batterboards) by yourself with no one to read the diagonal from the tape as you adjust the string line at the batterboard to get it square (get the diagonal right),
after you get it 'close' (eyeball it), measure the diagonal and enter it here to calculate how far to move the string line at the batterboard, to square it.
The Red lines are what you have now - The Blue lines are where you need to be - The distance to move the string line is marked above the batterboard at the top of the diagram.
Make sure the Reference Length, Side length and Batterboard Gap are accurate first.
If your Reference Length is flush on an existing structure, and there's no batterboard behind it, you're good to go.
If the layout is separate, and needs 4 corner batterboards, first find the 2 end Reference Length points (square off a boundary?) and drive stakes at each end of the Reference Length.
These 2 points will stay put, and must be in the correct position. (they're reference points).
Next place the batterboard for the first side (as per diagram at top) and pull a line from the (permanent) reference point stake to the batterboard (eyeball it for square).
Mark the Side Length (permanent marker) on the line from the Reference Length stake to measure diagonal to.
Use this calculator to adjust the line position to square the first side, then pull a line from this position on the batterboard BACK OVER THE REFERENCE POINT STAKE to position the line on the lower batterboard.
Now you have 1 side square from the Reference points, you can easily place the rest of the batterboards and square the sides (check the diagonals).
Fraction Precision
All Inch inputs and dimensions are actual physical finished sizes(unless otherwise noted)
All Metric Inputs in Millimetres(unless otherwise noted)
If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - theres dust in the spray too!
How should we spell it?
Results
What do we think? - They're 2 different things:
A Meter is a device to measure things - like a Volt Meter or a Parking Meter
A Metre is about 3'-3~3/8"
Although diameter and perimeter as measurements - don't seem to fit very well
If the US ever goes Metric, you'll be able to use a Meter to measure Meters - A Meter Meter
(And when we go back to the moon, let's go Metric, ay?)
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