Stone Border Calculator for Garden Edging

1. Border shape and dimensions

Border shape

Dimension unit

Length or side

Width

Radius

Use radius or diameter.

Diameter

Oval major dimension

Oval minor dimension

Custom segment lengths

Separate segment lengths with commas, spaces, semicolons, or new lines.

Entrances or gaps

Extra inner border length

Extra outer border length

Curve adjustment (%)

Slope adjustment (%)

Identical border sections

Border sides

2. Stone size, orientation, and ordering

Stone size unit

Stone length

Stone width

Stone height

Installation orientation

Joint or decorative gap

Rows across border

Stacked layers

Extra corner stones

Irregular stone correction (%)

Waste allowance (%)

Breakage allowance (%)

Reusable existing stones

Minimum order quantity

Stones per pack

Stones per pallet

Stone density (kg/m³)

3. Optional mixed stone sizes

Enable this option only when the border uses multiple stone coverage lengths. Percentages are normalized automatically.

Use mixed stone coverage sizes

Type 1 coverage length

Type 1 share (%)

Type 2 coverage length

Type 2 share (%)

Type 3 coverage length

Type 3 share (%)

4. Base, trench, and installation materials

Material dimension unit

Buried stone depth

Visible stone height

Trench width

Gravel base depth

Sand bedding depth

Mortar depth

Excavation depth

Landscape fabric width

5. Pricing and labor

Currency symbol

Stone pricing mode

Price per stone

Price per pack

Price per pallet

Bulk material price unit

Gravel price

Sand price

Mortar price

Fabric price per square foot

Labor pricing mode

Labor rate per output unit

Estimated labor hours

Hourly labor rate

Equipment rental

Delivery charge

Discount (%)

Sales tax (%)

6. Output preferences

Length output unit

Volume output unit

Weight output unit

Decimal precision

Formula used

Net border length = Shape perimeter + Inner border + Outer border − Openings
Adjusted length = Net length × Curve factor × Slope factor × Border sides × Sections
Effective coverage = Selected stone coverage + Joint gap
Base stones = Ceiling(Adjusted length ÷ Effective coverage) × Rows × Layers + Corner stones
Recommended stones = Ceiling(Base stones × Allowance factor) − Existing stones
Allowance factor = 1 + (Waste% + Breakage% + Irregular correction%) ÷ 100

How to use this calculator

Select the garden border shape and measurement units.
Enter the required dimensions, openings, slopes, and curved adjustments.
Add stone dimensions, orientation, joint spacing, rows, and layers.
Enter waste, breakage, pack, pallet, and reusable stone details.
Complete base material, labor, delivery, tax, and pricing fields.
Press calculate, then print, copy, save, or export the estimate.

Measurement and purchasing notes

Measure the actual installation path instead of nearby lawn dimensions. Add a modest curve adjustment when a tape cannot follow tight bends. Confirm pack quantities and stone dimensions with your supplier before ordering.

Natural stone varies more than manufactured blocks. Increase the irregular correction for uneven pieces or mixed shapes. Keep extra stones for future repairs and matching replacements.

Frequently asked questions

Should every result be rounded upward?

Yes. Partial stones usually require cutting, and ordering quantities must remain whole.

What waste allowance is suitable?

Ten percent is common. Complex curves, fragile stone, and irregular pieces may need more.

Does the calculator include stacked borders?

Yes. Increase the layer count to estimate vertically stacked stone courses.

Can it estimate double-sided edging?

Yes. Select double-sided edging to multiply the measured installation length.

Can mixed stone sizes be entered?

Yes. Enter up to three coverage lengths and their approximate percentage shares.