A 6×6 ft sandbox filled 6 inches deep takes 18 cubic feet of sand — 36 bags of 50 lb play sand. For 12 inches deep, buy 72 bags.
Change the numbers
The calculator below is pre-filled for this project. Adjust any value — including feet and inches — and the results update instantly.
Your results
Sand needed36 bags (50 lb)
Cubic feet18 cu ft
Cubic yards0.67 cu yd
Tons (bulk)0.9 tons
Sand for a 6×6 sandbox by depth
Depth
Cubic feet
50 lb bags
Tons (bulk)
4 in
12
24
0.6
6 in
18
36
0.9
8 in
24
48
1.2
10 in
30
60
1.5
12 in
36
72
1.8
At this size, bulk play sand delivered by the ton can be cheaper than bags — ask a landscape supplier for washed play sand. A breathable cover keeps out leaves and animals.
The math
6 × 6 × 6 in ÷ 12 = 18 cu ft
18 ÷ 0.5 cu ft per bag = 36 bags
Common questions
How many bags of sand for a 6x6 sandbox?
36 bags of 50 lb sand at 6 inches deep, or 72 bags at 12 inches.
