210T vs 70D Nylon Hammocks: What Are They Meaning?
When you compare the camping hammocks online or at your local store, you must notice different numbers puls unit for fabric specs, like 210T, 70D or 1.9 oz, for example:
- ENO SingleNest Hammock: 70D High Tenacity Nylon Taffeta
- Grand Trunk Double Deluxe Hammock: 210T Parachute Nylon
- Warbonnet Blackbird Double Layer 1.9oz Ripstop Nylon Hammock
What are the differences between 70D and 210T?
For the same rating nylon hammock, 70D and 210T refers to the same fabric which weighs 1.9 oz/sy (ounce per square yard). So they are just different descriptions for the same fabric. For the above 3 different brands of hammocks, if they use the same type of nylon material, their fabric will be completely the same.
D is the abbreviation of DENIER, denier is a measure of the linear mass density of fiber, yarn or therad, and is defined as the mass in grams per 9000 meters, 70D means 9000m fiber mass weighs 70g. Denier refers to the density and thickness of the yarn, not the fabric weight.
T represents the thread count, which is the number of threads used horizontally and vertically per square inch of fabric, 210T means a total of 210 threads in the square inch. Thread count refers to the woven density of yarn for the fabric.
However, denier and thread count are two units of measurement that are not interchangeable, how thick the thread(D) is and how tightly the threads are woven together(T), determine the weight of fabric (ounce per square yard). Different deniers may have different thread counts, so the fabric weight is different
What is Tex?
Tex is another unit of measure of the linear mass density of fiber, yarn and thread, and is defined as the mass in grams per 1000 meters.
Tex and Denier are interchangeable:
1 tex is 9 deniers,
1 denier is 0.11 texs,
So, 210D equals to 23.3 Texs.
Denier is more common to be used in the United States and the United Kingdom, while Tex is used in Canada and Continental Europe more.
Is there any connection between Deneir(D) and Thread Count(T)?
No, there is no direct connection between denier and thread count. But only for nylon (not for polyester), D and T have some general correlations. Like:
70D has the 210T designation, so the fabric is 1.9 oz per sqyd.
20D has the 380T designation, so the fabric is 1.0 oz per sqyd.
You won’t see 70D nylon have 380 thread count. All 70D comes with 210T.
Hammock manufacturers often use Denier or oz/yd² to describe the fabric, thread count is less used. For most nylon material, there is a common relation between Denier and ounce per square yard:
20D = 1.0 oz/sy
30D = 1.1 oz/sy
40D = 1.6 oz/sy
70D = 1.9 oz/sy
For example, Warbonnet Lightweight Double Blackbird XLC Fabric Spec: 40D Nylon Outer & 20D Nylon Inner, although it doesn’t say fabric weight, we can easily know that the outer 40D nylon is 1.6 oz/sy, the inner 20D nylon is 1.0 oz/sy.
What’s the difference between lightweight and heavyweight fabric?
Some brands like Warbonnet specifically point out lightweight or heavyweight fabric they use in the description, which refers to the weight of the fabric (ounce per square yard) only, not means the hammock weight capacity. The heavyweight fabric is heavier, stronger, more durable fabric than the lightweight one.
Should I consider Denier or Fabric Weight when choosing a hammock?
The answer is yes.
The higher Denier means the fiber or thread is more thick, sturdy and less stretchy. Accordingly, the fabric and hammock weight is higher. Material more than 40D is considered opaque and not see-through, for example, human hair is around 20D, 70D nylon is thick and strong enough for using for a blind taste test.
For camping hammock, typically the fabric weighs from1.0 oz/sy to 1.9 oz/sy (20D to 70D), for occupants from lighter weight less than 150 pounds to heavier weight above 300 pounds. Different brands have slightly different max weight capacity, but won’t differ too much.
For most people’s weight, can safely choose all hammocks from 1.0 to 2.0+, but choosing a proper fabric weight is important for comfortable sleeping. A larger weight hanger sleep in a 1.0 hammock will feel too stretchy, similarly a lighter weight hanger in a 1.9 hammock will feel too stiff. Usually, people around 160 lbs start from 1.0 or 1.1 is a good choice, 250 lbs choose 1.9 is suitable, weight between 160 and 250 lbs or above could choose accordingly fabric. Personal preference for stretch and softness are the determining factors, and only when yourself lying in a hammock can find your own sweet spot.