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2. Stair nosing - Wikipedia

   en.wikipedia.org/wiki/Stair_nosing

   The nosing is the protrusion beyond the riser when vertical risers are used, or beyond the back of the tread below, when angled risers or no risers are used. Anti-slip strips or nosings may be applied. These stair parts can be manufactured from a variety of materials including aluminum, vinyl, and wood.

3. Overhang (vehicles) - Wikipedia

   en.wikipedia.org/wiki/Overhang_(vehicles)

   Journalist Paul Niedermeyer has proposed an overhang ratio (OHR) to characterize the combined size of the front and rear overhangs, normalized to vehicle length, computed as = (). [3] Because most vehicles are styled so the wheelbase is typically equal to four wheel+tyre diameters, [ 2 ] the minimum OHR (with no bodywork projecting beyond the ...

4. Stairs - Wikipedia

   en.wikipedia.org/wiki/Stairs

   The dimensions of a stair, in particular the rise height and going of the steps, should remain the same along the stairs. [14] The following stair dimensions are important: The rise height or rise of each step is measured from the top of one tread to the next. It is not the physical height of the riser; the latter excludes the thickness of the ...

5. Loading gauge - Wikipedia

   en.wikipedia.org/wiki/Loading_gauge

   The cross section at the bottom of the well car differs from the X section of all other AAR plates. X section at center of car [31] [35] [34] Width of 10 feet 8 inches (3.25 m) only possible at the trucks [31] 10 1 3.07 [31] 20 3 6.17: 63 9 19.43: e.g. Including the height of double stacked containers in well cars.

6. BS National Beehive - Wikipedia

   en.wikipedia.org/wiki/BS_National_Beehive

   There are several methods to increase the size of the brood chamber, if this is required: Use of a larger 14 in × 12 in (360 mm × 300 mm) box, where the height of the frame is 12 in (300 mm), instead of the standard 8 + 1 ⁄ 2 in (220 mm), and the box is thus either 12 + 3 ⁄ 8 in (310 mm) or 12 + 1 ⁄ 2 in (320 mm) tall. (This box is not ...

7. Handrail - Wikipedia

   en.wikipedia.org/wiki/Handrail

   A maximum height of 28 inches (711 mm) measured to the top of the gripping surface from the ramp surface or stair nosing is recommended for handrails designed for children. Sufficient vertical clearance between upper and lower handrails, 9 inches (229 mm) minimum, should be provided to help prevent entrapment.