-diameter tape- - -KINGDOM OF JOGA-

-as of [30 MARCH 2024]–

*abbreviated ‘d-tape’*

“AMAZON’S CHOICE”

“PERFECT MEASURING TAPE COMPANY”

$16.99

*ordered ’17 may 2022’*

*AMAZON LINK*

Brand

PERFECT MEASURING TAPE

Item Dimensions

LxWxH

2.25 x 2.25 x 0.75 inches

Blade Length 12 Feet

About this item

OUTSIDE DIAMETER TAPE MEASURE –

Pocket-sized, flexible, and retractable steel tape measure with both diameter (OD measurement) and standard integer measurements

MEASURE AROUND ANYTHING –

Standard, consecutive inches on top-side to 1/16 inches;

diameter measurements on underside to 1/100th inches.

Perfect for measuring trees, branches, or pipe fitting

EASY READ TAPE MEASURE

Includes inches and metric measurements down to millimeters on both sides;

High contrast,

easy to read numbers

*MAGNETIC/REFLECTIVE/RETRACTABLE TAPE MEASURE*

Reflective, aluminum rotating wheel brake allows for high visibility and effortless retract control.

Strong magnet on case for affixing to metal objects

MONEY BACK GUARANTEE –

We are confident you will be satisfied with the quality of our products.

If you are not, we accept returns within 30 days for a full refund.

To discuss any issue or request a refund, please just message us directly via the Amazon Messaging Service.

*a ‘diameter tape’ is a ‘measuring tape’ used to estimate the ‘diameter’ of a ‘cylinder object’, typically the ‘stem’ of a ‘tree’ / ‘pipe’*

A diameter tape has either metric or imperial measurements reduced by the value of π.

This means the tape measures the diameter of the object.

It is assumed that the cylinder object is a perfect circle

The diameter tape provides an approximation of diameter; most commonly used in dendrometry.[1]

Diameter tapes are usually made of cloth or metal, and on one side of the tape have diameter measurements and on the other standard measurements (not reduced by π).

Use of diameter tapes[edit]
Diameter tapes are used to measure tree stems (trunk or bole); other parts of trees such as branches and roots; and logs (cut stems).

Standard Diameter Height (SDH)[2] is the height at which tree diameter is measured, and is normally called diameter at breast height (DBH).

DBH is measured at a fixed height of 4.5 feet (1.4 m) above the ground in the United States, New Zealand, South Africa, India, and Malaysia; or 4.27 feet (1.30 m) meters in Australia, Canada, Europe Thailand and Vietnam.

DBH is not usually measured at ground level to avoid measuring a tree’s butt swell. Butt swell is where the base of the tree is unconventionally thicker than the rest of the tree. Height and diameter are used to determine the volume of a given tree; measuring above the butt swell is required to provide the most accurate measurement.

For single-stem trees, DBH is a useful and is easily measured. For multi-stem species such as mallee or other multi-stemmed species, DBH may be inconvenient because of a large number of stems and difficulty of access, and a lower or higher measurement height may be more practical.

DBH measurements can be used with other measurements, such as height, to estimate the volume of wood in an individual tree. Usually DBH and height of the trees in a plot or quadrat is measured and used to estimate wood volume for the plot, which can be in turn used to estimate the wood volume in a larger area.

DBH measures can be used to calculate basal area.

Measuring diameter[edit]
To measure the diameter of a tree, the diameter tape (diameter side facing user) is wrapped around the tree, in the plane perpendicular to the axis of the trunk at 4.5 feet (1.4 m) above ground (or 4.27 feet (1.30 m), depending on the location) . Where the number “0” aligns with the rest of the tape, the diameter can be read directly from the tape, for a relatively round and smooth tree trunk as shown.

See Tree girth measurement for some cautions about placement, and errors that may be introduced, by reporting this diameter for a trunk, or any material, that is not nearly circular.

Precision diameter tapes[edit]
Precision diameter tapes are used for measuring the true diameters of both round and out-of-round forms

Used in the metal working industry, these tapes are precision tools made of 1095 clock spring steel

The precision-diameter gages consist of a narrow metal ribbon bearing special graduations vernier scale. The vernier scale allows the user more accurately measure diameter.

The tapes are checked over master gauges at 0.001 in (0.025 mm) accuracy for standard tapes up to 144 inches (3,658 mm).[3]

Precision diameter tapes are used in precision or advanced manufacturing industries, such as aero-space field and the plastic pipe industry.