6-Attachment D - Mulch Calculation.pdf

This is a mulch calculation exhibit for the Hillsborough County Board of County Commissioners' Temporary North Area Mowing and Landscaping Services contract opportunity in Florida. The exhibit provides the standardized formula and methodology for calculating mulch requirements for landscaping work at various Water Resources Department facilities throughout Hillsborough County. The project is a temporary three-month engagement with an estimated value of $225,009.38. The document establishes that one cubic yard of mulch covers 324 square feet at a one-inch depth and specifies that the County's standard mulch depth is four inches. The calculation formula is presented as: Square Footage × Desired Depth (in inches) ÷ 324 = Mulch Cubic Yards Required, with a worked example demonstrating the application for a 60-square-foot area requiring 0.74 cubic yards at the four-inch standard depth.

This exhibit serves as a reference tool for bidders to accurately quantify mulch material needs for the landscaping maintenance services being solicited. By providing the standardized calculation methodology and the County's established depth standard, the document ensures consistent and comparable bid responses from contractors. The inclusion of this exhibit in the bid package indicates that mulch application is a material component of the temporary mowing and landscaping services contract.