Landscaping & Earthwork Calculators
Engineering-grade calculators for landscape architects, contractors, and DIY homeowners. Accurately measure organic mulch, screened topsoil, gravel aggregates, and structural boundaries with bulk weight validation.
Retaining Wall Block & Geogrid Calculator
Calculate SRW wall blocks (Allan Block, Versa-Lok), crushed stone base trench tons, 12" drainage aggregate, and NCMA geogrid reinforcement.
French Drain & Trench Gravel Calculator
Calculate #57 washed drain rock tons, perforated pipe linear footage, non-woven geotextile burrito wrap, and minimum gravity slopes.
Driveway Sealer & Asphalt Maintenance
Calculate 5-gallon pails, rubberized crack filler, surface porosity rates, and DIY tool kits with 24–48h curing timelines.
Paver Patio & Walkway Calculator
Calculate 4×8, 6×6, 6×9, and 12×12 pavers, crushed base gravel tons, 1" bedding sand, and polymeric joint sand.
Grass Seed, Overseeding & Sod Calculator
Calculate seed pounds, bag counts, starter fertilizer, and instant sod pallets for Bluegrass, Fescue, Ryegrass, and Bermuda.
Mulch, Topsoil & Compost Calculator
Calculate volume in cubic yards and retail bags (2 cu ft & 3 cu ft). Includes cross-section diagrams, material densities, and bulk vs bagged pricing.
Gravel & Crushed Stone Sub-Base Calculator
Calculate tons and cubic yards for driveways, patios, walkways, and drainage trenches with compaction factors.
Fence Post & Materials Calculator
Calculate posts, rails, pickets, concrete bags, and frost depth footings for perimeter boundary fences.
Raised Bed Soil Mix Calculator
Horticultural Mel’s Mix, Standard 3-Way, and Hugelkultur biomass deduction calculator for raised garden boxes.
Standard Yard & Earthwork Coverage Rules
When estimating bulk materials such as mulch, compost, and gravel, always remember that 1 cubic yard equals 27 cubic feet. A single cubic yard will cover:
Always order 5% to 10% extra for wood mulches due to compaction, and 10% to 15% extra for crushed stone aggregates due to mechanical tamping compaction.