Why Do Some Barks Work Better for Cordage than Others?

Fiber Composition and Thickness

When selecting barks for cordage, the fiber composition and thickness play a crucial role. Barks with long, flexible fibers, such as those from willow (Salix spp.) or alder (Alnus spp.), tend to work better than those with shorter, coarser fibers like cedar (Cedrus spp.) or cypress (Taxodium spp.). Thicker barks, like those from oak (Quercus spp.) or beech (Fagus spp.), can be more challenging to strip due to their density, but their fibers may be more durable and resistant to water.

Bark Stripping Techniques

To successfully strip bark for cordage, it’s essential to use the right techniques. Start by scoring the bark with a sharp knife or stone, then peel it away from the tree in a single, continuous motion. The direction of the bark growth should guide your stripping motion. For example, when stripping willow bark, peel it away from the tree in a downward motion to minimize tearing. Aim to remove bark that is 1/4 to 1/2 inch (6-13 mm) thick, as this will provide a good balance between durability and flexibility.

Moisture Content and Storage

The moisture content of the bark is also critical for its usability as cordage. Barks with a high moisture content tend to be more prone to rot and decay, while those that are too dry may become brittle. To maintain optimal moisture levels, store the stripped bark in a dry, airtight container or under a breathable cover. Aim to store the bark at a relative humidity of 40-60% and a temperature range of 40-60°F (4-15°C). Regularly inspect the bark for signs of decay or mold, and repair or replace it as needed to ensure its continued usability for cordage.