18 Oz Vinyl Seam Overview

There are two methods that we can use to hem our products:

  1. Our standard hem shown here is made by folding the material over 2" seat belt webbing.
  2. In cases where the folded hem will introduce the need for an extra seam we may forego the fold and just sew the seat belt onto the back of the hem.

In the chart below, you can see how many seams you can expect with each option. Note that we don't guarantee that you won't have more seams than are shown here. The table reflects the best case scenario.

If you are somewhat flexible in your sizing, it is a good idea to make adjustments to allow for fewer seams. For example, instead of ordering a 20' x 20' tarp, you might want to make it 20' x 19' 9" in order to eliminate a seam while still using a standard hem.

SeamsMax Width
Standard Hem
Max Width
No Fold Hem
057" (4' 9")61" (5' 1")
1117" (9' 9")121" (10' 1")
2177" (14' 9")181" (15' 1")
3237" (19' 9")241" (20' 1")
4297" (24' 9")301" (25' 1")
5357" (29' 9")361" (30' 1")
6417" (34' 9")421" (35' 1")
7477" (39' 9")481" (40' 1")
8537" (44' 9")541" (45' 1")
9597" (49' 9")601" (50' 1")
10657" (54' 9")661" (55' 1")