Why Is Diagonal Lashing Preferred for Tension Structures?

Distribution of Force

Diagonal lashings are effective in tension structures such as shelters and bridges because they transfer force from one point to another in a straight line, rather than through a single point. This distribution of force reduces the risk of a single point failing, which can cause the entire structure to collapse. A diagonal lashing typically involves two to four turns of cordage, spaced evenly apart, to create a stable and rigid connection.

Tension and Stability

When applied correctly, diagonal lashings can generate significant tension and stability in a structure. For example, a diagonal lashing can be used to secure a ridgepole in a shelter, transferring the weight and wind load directly to the ground anchors. A minimum of two turns of cordage is recommended for each leg of the lashing, with each turn spaced about 6-8 inches apart. This spacing helps to prevent the cordage from slipping or coming loose over time.

Practical Application

In practice, diagonal lashings are often used in conjunction with other lashings and cordage techniques, such as the bowline and the sheet bend. For instance, a diagonal lashing can be used to secure a ridgepole in a shelter, while a bowline is used to attach the cordage to the pole. By combining different lashings and techniques, survivalists and outdoor enthusiasts can create strong and stable structures that can withstand a variety of environmental conditions.