Paver & Patio Calculator

One footprint drives the whole coupled stack. The paver count rounds up with a pattern-aware waste cushion; the gravel base, bedding sand, polymeric joint sand, and edge restraint all derive from the same patio area.

patio area (ft²):
  lw mode    = length_ft × width_ft
  area mode  = entered area

paver face area (ft²) = paver_L_in × paver_W_in / 144
total waste = pattern_waste + extra_waste
pavers = ceil( (area / paver_ft²) × (1 + waste) )

base / bedding volume (cu yd) = area × depth_in / 12 / 27
gravel tons (approx)          = gravel_cu_yd × density
bedding bags (50-lb)          = ceil( bedding_cu_yd × 27 )

polymeric joint sand (50-lb bags, range):
  low  = ceil( area / 50 )      high = ceil( area / 25 )
  mid  = ceil( area / coverage )   (coverage default 40 sq ft/bag)

edge restraint (lw mode) = 2 × (length_ft + width_ft)

Pattern waste presets (stacked 2%, running 5%, basketweave 5%, herringbone 10%, diagonal 20%) and the preset paver sizes follow MiniWebtool and Inch Calculator; the cubic-yard formula follows MiniWebtool / Omnicalculator. Bedding bags use the exact 27 × 50-lb bags per cubic yard constant. Polymeric coverage is shown as a range because it varies with paver thickness and joint width. Tax is excluded.