Garden Bed Soil Calculator — Pre-Measured Soil Volumes | Frame It All

Free tool

Raised Garden Bed Soil Calculator

How much soil does your bed need?

Find your bed below, choose how many levels you are building, and read the cubic feet. Every figure here is measured from the actual kit, not estimated from outside dimensions.

One level is one board course

A level is a single course of boards, 5.5 inches of soil depth. It is not the full height of your bed. A standard 11 inch bed is two levels. Count your board courses, then read across.

Beds marked Fixed designs work differently. Those columns are separate bed configurations, not stacking heights, so the numbers do not double. Check your product page for which design you have.

How many levels are you building?

Soil volume in cubic feet for every Frame It All raised bed, by number of levels
Bed Sq ft 1 level5.5 in 2 levels11 in 3 levels16.5 in 4 levels22 in
2'x2' Raised Garden BedStacking 4 1.83 3.66 5.49 7.32
2'x4' Raised Garden BedStacking 8 3.67 7.34 11.01 14.68
2'x6' Raised Garden BedStacking 12 5.5 11 16.5 22
2'x8' Raised Garden BedStacking 16 7.33 14.66 21.99 29.32
4'x4' Raised Garden & Keyhole BedStacking 16 7.33 14.66 21.99 29.32
4'x8' Raised Garden & Keyhole BedStacking 32 14.67 29.34 44.01 58.68
8'x8' Raised Garden & Keyhole BedStacking 64 29.33 58.66 87.99 117.32
4'x12' Raised Garden & Keyhole BedStacking 48 22 44 66 88
4'x16' Raised Garden & Keyhole BedStacking 64 29.33 58.66 87.99 117.32
12'x12' L-Shaped & Keyhole RGBStacking 24 36.65 73.3 109.95 146.6
Arrowhead Raised Garden BedStacking 48 22 44 66 88
Banaue Raised Garden BedFixed designs 24 Not offered Not offered 25.35 Not offered
Blackbeards Hat Raised Garden BedFixed designs 40 Not offered 23.4 Not offered Not offered
Castle Moat Raised Garden BedFixed designs 60 22.52 36.37 57.16 74.48
Chateau Marmont Raised GardenFixed designs 12 10.01 15.67 11.67 17.34
Circle Keyhole Raised Garden BedFixed designs 48 Not offered 43.14 75.37 Not offered
Circle Quadruple Raised Garden BedFixed designs 48 Not offered Not offered 65.68 Not offered
Circle Quay RGB & Keyhole BedStacking 48 22 44 66 88
Curved Terrace Raised Garden BedFixed designs 32 Not offered 43 Not offered Not offered
Dakota Raised Garden BedFixed designs 48 Not offered Not offered 34.67 Not offered
Diamondback Butterfly RGBFixed designs 80 Not offered 19.91 Not offered Not offered
Double Curved End RGBStacking 32 14.39 28.78 43.17 57.56
Ft. Jefferson Raised Garden BedStacking 9 4.13 8.26 12.39 16.52
Ft. Knox Raised Garden BedFixed designs 48 34.67 54.67 Not offered Not offered
Garden Star Raised Garden BedFixed designs 80 Not offered 48.5 Not offered Not offered
Grand Concourse Raised Garden BedStacking 48 22 44 66 88
Hanging Gardens of Babylon RGBFixed designs 24 Not offered Not offered 22 Not offered
Lazy Curve Raised Garden BedStacking 48 22 44 66 88
London Tower Raised Garden BedFixed designs 32 Not offered Not offered 29.33 Not offered
Machu Picchu Raised Garden BedFixed designs 52 Not offered Not offered 58.67 Not offered
Military Medallion RGBStacking 20 9.17 18.34 27.51 36.68
Nelson's Hat Raised Garden BedFixed designs 40 Not offered Not offered 20.49 Not offered
Nordic Cross Raised Garden BedStacking 36 16.5 33 49.5 66
Notre Dame Raised Garden BedFixed designs 20 8 15.35 26.68 34.65
OK Corral Raised Garden BedStacking 48 22 44 66 88
Peppermint Cream RGBFixed designs 80 36.67 55 Not offered Not offered
Princess Diamond Butterfly RGBFixed designs 80 Not offered 19.91 Not offered Not offered
Roman Bathtub Raised Garden BedStacking 25 11.46 22.92 34.38 45.84
Silver Salver Raised Garden BedStacking 48 22 44 66 88
Split Waterfall Raised Garden BedFixed designs 80 Not offered Not offered 73.3 Not offered
St. John's Baptistery RGBStacking 18 8.25 16.5 24.75 33
Sugar Cone Raised Garden BedFixed designs 48 43.07 76.18 Not offered Not offered
Stepper 4'x8' Raised Garden BedFixed designs 32 Not offered 21.99 Not offered Not offered
Teardrop Raised Garden BedFixed designs 48 29.33 46.67 69.34 87.99
Terraced Square Raised Garden BedFixed designs 64 Not offered Not offered Not offered 102.62
Tri-Step Raised Garden BedFixed designs 48 Not offered Not offered 43.98 Not offered
Versailles Sunburst RBGFixed designs 64 Not offered Not offered 27.91 Not offered
Victory Cockade Raised Garden BedFixed designs 40 Not offered Not offered 20.49 Not offered
Walk-In Alamo Raised Garden Bed & Animal Barrier RGBStacking 40 11 31 52 74
Walk-In Bell Bottom Raised Garden BedStacking 88 38.34 76.68 115.02 153.36
Walk-In Big EZ Raised Garden BedStacking 128 55.45 116.29 166.34 232.58
Walk-In Cathedral Raised Garden BedStacking 46 16 32 56 76
Walk-In Center Cross Raised Garden Bed & Animal Barrier RGBStacking 88 37.63 75.27 112.9 157.87
Walk-In Circle Chicago Keyhole Path Raised Garden BedStacking 40 24 31 52 74
Walk-In Cumberland Raised Garden Bed & Animal Barrier RGBStacking 36 13 26 46 63
Walk-In Easy Reach Raised Garden BedStacking 36 13 26 46 63
Walk-In Ft. Bragg Raised Garden Bed & Animal Barrier RGBStacking 112 51.21 97.67 146.51 204.86
Walk-In Jumbo U-Shape Raised Garden BedStacking 112 41 82 144 195
Walk-In Le Croissant Horseshoe Shape Terraced RGBFixed designs 128 Not offered Not offered Not offered 126
Walk-In Lucky Horseshoe Raised Garden BedStacking 48 22 44 66 88
Walk-In Topolski Raised Garden Bed & Animal Barrier RGBStacking 42 13 25 44 70
Walk-In U-Shape Terrace Raised Garden BedFixed designs 112 Not offered Not offered Not offered 110
Walk-Through Orbital Raised Garden Bed & Animal Barrier RGBStacking 144 48 96 168 228
Walk-Through Elizabethan Raised Garden BedStacking 60 27.5 55 82.5 110
Walk-Through Hexagon Center Path Raised Garden BedStacking 52 19 37 65 87
Walk-Through Colosseum Raised Garden Bed & Animal Barrier RGBStacking 128 48 96 166 226
Walk-Through Inner Roboto Raised Garden Bed & Animal Barrier RGBStacking 154 56 112 196 266
Walk-Through Pigskin Path Raised Garden BedStacking 42 18 35 62 84
Wavy Navy Raised Garden BedStacking 32 14.67 29.34 44.01 58.68
Yosemite Falls Raised Garden BedFixed designs 20 Not offered 13.33 21.68 Not offered

Buying soil

  • Fill with a 1:1 mix of compost or manure and a light potting soil or screened topsoil.
  • Skip heavy soils with a lot of clay, gravel or sand. They compact and drain badly in a raised bed.
  • Ordering in bulk instead of bags usually makes sense above about 2 cubic yards.
  • Walk-in and walk-through beds have an interior path, so they need less soil than their square footage suggests.