Yard & Slab — Jobsite Material Estimate

Precision US Contractor & Building Material Calculations (yardandslab.com)

Date: October 28, 2026

Standards: US Imperial (ASTM / Quikrete / IRC)

100% US Imperial Standard: All formulas calibrated for US Retail SKUs (80lb/60lb Bags, Cubic Yards, US Tons & Gallons)
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Lawn Overseeding & Fertilizer Rate Calculator

Calculate seed pounds and starter fertilizer per 1,000 sq ft tailored to Kentucky Bluegrass, Tall Fescue, Bermuda, or Zoysia.

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🌱 Lawn Area & Grass Species

5,000 sq ft
500 sq ft 10,000 sq ft 25,000 sq ft (1/2 Acre)

🌾 Seeding Rate: 4 lbs per 1,000 sq ft for Tall fescue.

💧 Topdressing: Spread 3.86 cu yds of peat moss (1/4" layer) to lock in moisture during germination.

Grass Seed Required

20 lbs (1 × 25lb bags)

Starter Fertilizer

20 lbs

1 × 20lb bags

Lawn Area: 5,000 sq ft Rate: 4 lbs / 1k sq ft Topdressing: 3.86 cu yds

Soil Profile & Seed Bed Cross-Section

20 lbs seed · 5,000 sq ft
Core Aerated Soil Subgrade 1/4" Moisture Retention Peat Moss Blanket Grass Blades Starter Fert

🛒 Lawn Renovation Shopping List

Tall Fescue Seed Certified 99.9% weed-free seed
20 lbs Check Amazon ›
High-Phosphorus Starter Fertilizer Boosts root establishment for seedlings
20 lbs Check Home Depot ›
Sphagnum Peat Moss Topdressing 1/4" moisture blanket
3.86 cu yds ~29 bales (3.8 cu ft)
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📐 Engineering Principles & Formulas

All calculations adhere strictly to US Imperial standards and standard retail SKU yields (Quikrete, Home Depot, Lowe's, ASTM standards):

Formulas verified against US contractor standards and material packaging specifications.

Pre-Solved Dimension Calculators

15 Pre-Calculated Sizes

Jump directly to your exact dimensions with pre-solved material quantities and instant answers:

How Many Pounds of Tall Fescue Seed for a 1,000 sq ft Lawn? › How Many Pounds of Tall Fescue Seed for a 2,500 sq ft Lawn? › How Many Pounds of Tall Fescue Seed for a 5,000 sq ft Lawn? › How Many Pounds of Tall Fescue Seed for a 10,000 sq ft Lawn? › How Many Pounds of Tall Fescue Seed for a 15,000 sq ft Lawn? › How Many Pounds of Tall Fescue Seed for a 20,000 sq ft Lawn? › How Many Pounds of Tall Fescue Seed for a 2,500 sq ft Lawn? › How Many Pounds of Tall Fescue Seed for a 5,000 sq ft Lawn? › How Many Pounds of Kentucky Bluegrass Seed for a 1,000 sq ft Lawn? › How Many Pounds of Kentucky Bluegrass Seed for a 2,500 sq ft Lawn? › How Many Pounds of Kentucky Bluegrass Seed for a 5,000 sq ft Lawn? › How Many Pounds of Kentucky Bluegrass Seed for a 10,000 sq ft Lawn? › How Many Pounds of Bermuda Seed for a 2,500 sq ft Lawn? › How Many Pounds of Bermuda Seed for a 5,000 sq ft Lawn? › How Many Pounds of Zoysia Seed for a 5,000 sq ft Lawn? ›

🔗 Free Contractor Website Embed Widget

Contractors, builders, and suppliers can embed this interactive Lawn Overseeding & Fertilizer Rate Calculator on their website for free.

<iframe src="https://yardandslab.com/embed/lawn-overseeding-calculator" width="100%" height="650" frameborder="0" style="border:1px solid #e2e8f0;border-radius:12px;"></iframe>

❓ Frequently Asked Questions: Lawn Overseeding & Fertilizer Rate Calculator

Yes. Every calculation outputs standard US construction packaging and measurements: cubic yards, 40lb/60lb/80lb Quikrete bags, US short tons (2,000 lbs), fluid ounces, gallons, and linear feet matching Home Depot and Lowe's retail inventory.
Yes. Calculators default to a contractor-standard 10% waste factor to accommodate form flex, uneven subgrades, and spillage. You can adjust this to 5% or 15% using the interactive input controls.
Generic calculators rely on basic geometric boxes without considering physical building realities: corrugated pipe displacement in French drains, actual nominal post sizes (3.5" for 4x4, not 4.0"), 15% compaction factors for crushed aggregate, and IECC US Climate Zones.
Yes! Click the "Print / PDF" button on any calculator to generate a clean, branded one-page materials shopping list formatted for mobile or paper printout at the lumberyard.