Erosion Blanket (RECP) Roll and Staple Takeoff
Rolls and staples to order for a slope erosion-control blanket (RECP), where the side/end overlap drives the roll count: rolls = ceil(area x (1 + overlap) / roll area), staples = ceil(area sy x staples per sy). An 18,000 sf slope at 10% overlap needs 22 rolls and ~3,000 staples. The manufacturer's guide sets the overlap and staple pattern.
Formula and source
coverage_sy = area_sf / 9; roll_sy = roll_width_ft x roll_length_ft / 9; rolls = ceil(coverage_sy x (1 + overlap_pct/100) / roll_sy); staples = ceil(coverage_sy x staples_per_sy).
Lapped-roll takeoff identity by name (RECP install); first-principles area arithmetic; the manufacturer's guide sets overlap and staples.
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