DIY paver guide

How Much Paver Base for a 12x12 Patio?

Last updated July 11, 2026

A 12x12 ft patio is 144 sq ft. With a 4 inch base and 10% allowance, plan for about 1.96 cubic yards, 3.13 tons, or 106 half-cubic-foot bags.

Quick answer

4 in base: about 1.96 cu yd and 3.13 tons.
6 in base: about 2.93 cu yd and 4.69 tons.
A 12x12 patio is usually large enough to price both bulk delivery and bagged pickup.

Interactive estimator

Paver Base calculator

Imperial Metric

Measurement input Length x width Total area

Project length (ft) Measure the longest side of the patio, walkway, or driveway. Project width (ft) Measure the average width if the project is irregular. Base depth (in) Compacted base depth before pavers are installed. Bedding sand depth (in) Optional sand layer estimate for the setting bed above the base. Base aggregate density (tons/cu yd) Default is crushed aggregate at 1.6 tons per cubic yard. Waste and compaction allowance (%) Add extra for compaction, uneven excavation, and ordering buffer. Bag volume (cu ft) Use the volume printed on your bag if buying bagged base. Sand bag volume (cu ft) Use the bag's actual volume if buying bagged bedding sand. Base aggregate price ($/ton) Optional supplier price for the base aggregate.

Example project 10x10 ft patio

Base volume 1.36 cu yd 4 in depth

Weight 2.17 tons bulk order

Bedding sand 0.34 cu yd 1 in layer

Bagged order 74 bags 0.5 cu ft base bags

Base cost ~$98 $45/ton

Example 10x10 patio: base is about 1.36 cu yd, 2.17 tons, or 74 half-cubic-foot bags, plus 0.34 cu yd of bedding sand.

Enter dimensions or total area, depth, density, bag size, and supplier price to create a printable order.

12x12 patio paver base estimate

Base depth	Cubic yards	Tons	0.5 cu ft bags
4 in	1.96	3.13	106
6 in	2.93	4.69	159
8 in	3.91	6.26	212

Assumes 10% allowance and 1.6 tons per cubic yard.

12x12 base calculation

Area is 144 sq ft. At 4 inches deep, compacted volume is 48 cubic feet before allowance. With 10% extra, the order volume is 52.8 cubic feet, or 1.96 cubic yards.

Using the default density of 1.6 tons per cubic yard, 1.96 cubic yards becomes about 3.13 tons of aggregate base.

Buying by bags vs tons

Half-cubic-foot bags are convenient for small repairs, but a 12x12 patio can require more than 100 bags at a 4 inch depth. Bulk delivery normally becomes easier once the project passes a few tons.

Use bag count for store pickup planning and tons for supplier quotes.

Helpful next step

Use the complete paver material calculator when you want one combined order list for pavers, base, bedding sand, polymeric sand, edging, and cost. Use the focused calculators when you need to tune one material at a time.