Weed Barrier Calculator
Divides area by roll coverage; assumes rectangular beds without overlaps modeled.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Enter bed area and square feet per roll from packaging.
What the math is doing
Rolls = ceil(area ÷ roll coverage) with waste.
Frequently asked questions
Overlap seams?
Increase waste percentage.
Pins?
Count separately.
UV exposure?
Bury edges per instructions.
Tree wells?
Cut and overlap carefully.