Reference tables
Look-up charts built from stable conventions — pier & strap spacing bands, concrete & gravel cubic-yard math, vapor-barrier coverage & overlap, drain-tile pipe & slope, an interior-vs-exterior waterproofing comparison and cost-per-sq-ft planning bands.
Pier & carbon-fiber-strap spacing bandsTypical push/helical pier spacing (~6–8 ft) and carbon-fiber-strap / wall-anchor spacing (~4 ft) as labeled planning bands — your engineer sets the real numbers.Concrete & gravel cubic-yard conversionsHow to turn area and thickness into cubic yards of concrete or gravel — cu yd = area × thickness ÷ 12 ÷ 27 — the fixed convention behind the concrete tools.Vapor-barrier mil, roll coverage & overlapTypical crawl-space vapor-barrier mil thickness, roll coverage and overlap (~6–12 in) as labeled planning conventions — check your product label.Drain-tile pipe sizes & slope conventionsCommon perforated drain-tile pipe sizes and the ~1% fall convention for interior and exterior French drains — a timeless planning reference.Interior vs exterior waterproofing methodsA labeled comparison of interior drain tile, exterior excavation & membrane and interior sealant — what each addresses, with no prices.Below-grade cost-per-sq-ft PLANNING bandsRough per-square-foot planning bands for scoping a below-grade project — labeled estimates for a first pass, NOT a current price index or market pricing.