Sandbox & Masonry Sand Bag (50 lb) Calculator

Estimate 50 lb bags and cubic yards for clean washed sandbox sand and masonry mortar sand.

Interactive Material & Cost Estimator

Density: 2,700 lbs/yd³ (1.35 tons/yd³)

1. Select Project Area Shape

Length (Feet)

Width (Feet)

Desired Depth (Inches)

Waste / Cut / Compaction Buffer

2. Select Package / Unit Size

Price / Unit ($)

Bulk / yd³ ($)

Delivery ($)

Estimated Material Needed 36 sq ft @ 8" depth (+10% buffer)

Bulk Volume (Cubic Yards) 0.98 26.4 cubic feet

Estimated Total Weight 1.32 US Tons (2,640 lbs)

Store Bag Count 53 50 lb bags

Pallet Estimate (56 bags) ~0.95 pallets

Estimated Project Material Cost Bulk Saves $174

Retail Package Total $290.44 Before local sales tax

Bulk + Truck Delivery $116.07 Includes $75 delivery

Quick Reference Coverage Chart (Gravel & Stone)

Instant pre-calculated material estimates for common US residential project sizes before compaction buffer:

Typical US Project	Area	Depth	Volume	Weight	Store Bags
Standard Square Sandbox (6 ft × 6 ft)	36 sq ft	8 inches	0.98 cu yd	1.33 tons (2,660 lbs)	53 bags (50 lb)

Engineering Formula & Material Density Constant

Cubic Yards = (Length × Width × (Depth ÷ 12)) ÷ 27

Clean washed play sand weighs ~2,700 lbs per cubic yard, with standard bags weighing 50 lbs (~0.5 cu ft).

Play Sand vs Masonry Sand

Play sand is washed and screened to remove sharp edges and dust, making it safe for children. Masonry sand is similarly fine-grained and used for brick mortar joints.

Frequently Asked Questions

How many 50 lb bags of play sand in a cubic yard?

Exactly 54 bags.

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