Fabric comes in fixed widths, so the real question is how many strips cover your bed. This counts strips, rolls and the pins to hold them.
How it works
Strips = bed width ÷ usable roll width, where usable width is the roll width minus the seam overlap. Strips × bed length gives total fabric, divided by roll length for rolls.
Before you order
- Overlap 12 inches where stone or heavy mulch will sit on top, since material pushes seams apart.
- Cut X-shaped slits for plants, and fold the flaps under rather than removing fabric.
- Skip fabric under organic mulch beds that you want to feed the soil.
Common questions
How much should landscape fabric overlap?
Six inches is a common minimum and 12 inches is better under rock.
How many pins do I need for landscape fabric?
Plan about one every 3 feet along seams and edges, more on slopes or windy sites.