Webbing/ seat vs. back

[bobbin]

I am no upholsterer.  I am a sewing machine jockey.  BUT, how important is the difference between the webbing for seats and that for backs? how do you tell the difference between the two?

[kodydog]

You can use seat webbing for backs but I wouldn't use back webbing for seats. If that's all you have maybe you can double-up on it. I noticed on Mikes wing chair video he used the red threaded (thick) webbing on the back and black thread (thin) on the arms.

[sofadoc]

Are we talking about jute? If so, Kody nailed it. Red stripe for seats. Black stripe for backs. But in a pinch, just use red on both. But I mainly use the polypropylene (synthetic) webbing anyway. Yes, I know that is blasphemy to traditional purists. But since it doesn't rot like jute, and I get 3x's as much for about the same price, I don't care.

If we're talking about the Pirelli substitute  "Elasbelt", the back grade is much stretchier than the seat grade.

[kodydog]

. But I mainly use the polypropylene (synthetic) webbing anyway. Yes, I know that is blasphemy to traditional purists. But since it doesn't rot like jute, and I get 3x's as much for about the same price, I don't care.

I agree Sofa. Some people say it stretches more but I don't see it. Unfortunately my supplier doesn't offer it. I know I could find it if I wanted but gotta go with whats easily available.

[ahkahn]

Sofadoc is correct.  The difference is seen in the color of the lines.  What is the technical difference?  Simply the weight.  The red line is a heavier one (11 oz.).  The black line is a 9 oz. jute.

-Andrew