Measuring devices, the task of taking measurements.

Using Measuring Devices in working with wood is the first practical task in making the measurements we need to complete our project. When we decide what kind of wood and the project we want to build it is essential that we mark up our stock in order to be able to cut to the required size and shape.

To avoid waste of time and material accuracy of measurement is a must. We can achieve accuracy with little effort if we use the measuring devices correctly.

There are a vast amount of measuring devices available on the market for measuring, marking and checking our work. Some of these devices are specialized in what they perform while others shares a common function in thier performance.

Tape Measure ( Retractable ) Blade length can range anywhere from 6' to 50', and I prefer the 12' the best as it will measure beyond the common eigth foot range.The blade which is concave in shape has widths that vary from 1/4" to 1-1/4" thus making the wider tape easier to extend without collapsing over longer distances.The tape contains a spring mechanism in the housing that will automatically retract the tape when it is released. Some tape measures have locking mechanisms that holds the tape in place when it is extended, either a slide lock or a sqeeze release. There are also specialize markings on the tape for layouts, such as studs on 16" center and other markings also.

Folding Rule This is a rule that is 6" to 8"in length, metal or hardwood that unfolds and is connected by spring joints. There are some models that has a extension slide for measuring tight areas such as window frames and doorways. These rules comes in different designs for specific measuring needed by carpenters, masons, plumbers, and engineers.

Yardstick Rule ( Metal or Wood ) Can be used in measuring small projects and as a fence for cutting roll and sheet materials. Known to some of us as a straight-edge rule and the more thicker models can be used as a saw guide when clamped into place.These also comes in handy when drawing a straight line.

Calipers This is a device used to measure the distance between two symmetrically opposing sides. A caliper can be as simple as a compass with inward or outward-facing points. The tips of the caliper are adjusted to fit across the points to be measured, the caliper is then removed and the distance read by measuring between the tips with a measuring tool, such as a ruler.

Different types of Calipers

Vernier Caliper

Inside calipers are used to measure the internal size of an object.

Outside calipers are used to measure the external size of an object.

Divider Calipers use to measure point to point or divide equal distancec between points.

Tape Rule Information The small black diamond that appears every 19.2 inches are known as the "black truss" makings. This is used to mark out five equal trusses for a standard eight foot sheet of material.If you divide 96" by 5 you get 19.2 inches.

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