Manila Rope - Strength

Manila rope 3-strand. minimum breaking strength and safe load

Manila rope is from the fibers of the abaca plant - "musa testilus" - Manila hemp.

manila rope strength

Minimum breaking strength and safe load of manila rope are indicated below.

Rope DiameterMinimum Breaking StrengthSafe Load
(Safety Factor 12)
Weight
(in)(mm)(lbf)(kN)(lbf)(kN)(lbm/ft)(kg/m)
3/16 5 405 1.8 33.8 0.150 0.014 0.020
1/4 6 540 2.4 45.0 0.200 0.018 0.027
5/16 8 900 4.0 75.0 0.334 0.026 0.039
3/8 10 1212 5.4 101 0.450 0.038 0.056
7/16 11 1575 7.0 131 0.584 0.049 0.072
1/2 12 2385 10.6 199 0.884 0.070 0.104
9/16 14 3105 13.8 259 1.15 0.096 0.143
5/8 16 3960 17.6 330 1.47 0.127 0.189
3/4 18 4860 21.6 405 1.80 0.159 0.237
13/16 20 5850 26.0 488 2.17 0.186 0.277
7/8 22 6930 30.8 578 2.57 0.214 0.318
1 24 8100 36.0 675 3.00 0.257 0.382
1 1/16 26 9450 42.0 788 3.50 0.298 0.443
1 1/8 28 10800 48.0 900 4.00 0.343 0.510
1 1/4 30 12150 54.0 1010 4.49 0.397 0.591
1 3/8 32 13500 60.1 1130 5.03 0.456 0.679
1 1/2 36 16650 74.1 1390 6.18 0.570 0.848
1 5/8 40 20250 90.1 1690 7.52 0.711 1.06
1 3/4 44 23850 110 1990 8.85 0.850 1.26
2 48 27900 120 2330 10.4 1.02 1.52

Example - Maximum Safe Mass for a 3/8" Manila Rope

The relationship between mass and force (weight) can be expressed as

m = F / g    (1)

where 

F = force, weight (N)

m = mass (kg)

g = acceleration of gravity (9.81 m/s2

Maximum safe mass for a 3/8" manila rope where safe load is 0.45 kN can be calculated as

m = (0.45 103 N) / (9.81 m/s2)

   =  45.9 kg 

Related Topics

  • Miscellaneous - Miscellaneous engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more

Related Documents

Tag Search

  • en: strength manila rope breaking minimum safe load weight

Search the Engineering ToolBox

- "Search is the most efficient way to navigate the Engineering ToolBox!"

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your SketchUp model with the Engineering ToolBox - SketchUp Extension/Plugin - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro. Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Translate the Engineering ToolBox!
About the Engineering ToolBox!

close