ProjectMetrica guides
Home Project Guides
Practical explanations for the measurements, assumptions and ordering decisions behind our calculators.
Project guide
How Much Topsoil Do I Need?
Measure the area, choose a practical soil depth and convert the result into cubic yards, bags and an ordering allowance.
Read guide → Project guidePaver Base Depth Guide
See how project use, soil, drainage and compaction affect the aggregate base below a patio, walkway or driveway.
Read guide → Project guideHow Much Extra Sod Should You Order?
Choose a sensible sod waste allowance for straight lawns, curved edges, trees, beds and irregular layouts.
Read guide → Project guideRetaining Wall Materials Checklist
Plan blocks, cap units, compacted base, drainage stone and other common materials before ordering.
Read guide → Project guideWhat Affects Fence Cost?
Understand how length, material, gates, labor, demolition and site conditions change a fence project budget.
Read guide →