French Drain Calculator & Material Planner
Trench stone less pipe displacement, drain pipe, fabric and outlets.
Project estimate
French Drain Planner
$737–$847
Material estimate + optional reserve · USD
- Excavation
- 4.44 yd³
- Stone volume
- 4.19 yd³
- Working time allowance
- 1.13 days
18 person-hours / 2 people / 8 h per day. Provisional activity rates; adjust in advanced options.
Excludes labor, tax, delivery, equipment rental, permits and site work. Sample prices are not live retailer quotes. Upper budget includes 15% contingency.
Cost breakdown
- Pipe
- $144
- Stone
- $309
- Fabric
- $211
- Fittings
- $73
Shopping list
0 / 5 checkedWhole packages rounded up. Edit a unit price to use your supplier's quote.
Pipe
Perforated pipe
8 sections
$144$18 per sections
Stone
Drain stone
4.75 yd³
$309$65 per yd³
Fabric
Filter fabric
528 ft²
$211$0 per ft²
Fittings
Pipe couplings
7 pieces
$28$4 per pieces
Outlet / cleanout kit
1 kit
$45$45 per kit
Save this project
Saved on this browser only. No account required.
Assumptions & project notes
- Material allowance: 10%. Package sizes and coverage rates are editable in the inputs.
- Stone volume assumes full stone backfill. Subtract topsoil or other layers if used; establish a permitted positive outlet.
- Check final dimensions, product specifications and any required local approvals before ordering.
Tools & preparation
- Tape measure and layout stakes
- Level or grade-checking tools
- Spade, rake and wheelbarrow where required
- Product-specific cutting and connection tools
A preparation list; confirm installation tools with your selected products.
How to use the french drain planner
Start with length, trench width, depth / thickness. The result includes excavation, stone volume. Open advanced options to match your product sizes, material allowance and labor expectations.
1. Measure and specify
Measure the treated area or route and record soil, slope, access and utility constraints.
2. Adjust the estimate
Choose the actual product coverage, layer depths or irrigation performance data.
3. Prepare your order
Check delivery units, overlaps, site storage and waste before placing the order.
4. Plan the work
Schedule preparation, installation and final grading or flow checks; follow the selected product instructions.
Frequently asked questions
What does the french drain planner estimate?+
Trench stone less pipe displacement, drain pipe, fabric and outlets. The shopping list includes perforated pipe, drain stone, filter fabric, pipe couplings, outlet / cleanout kit.
Which assumptions should I check?+
Stone volume assumes full stone backfill. Subtract topsoil or other layers if used; establish a permitted positive outlet.
Are the prices current supplier quotes?+
No. Initial unit prices are illustrative USD budgeting inputs. Enter a price beside each material to use your own quote. The total includes materials only; labor, shipping, taxes, permits and rental are excluded.
Can I save or share my project?+
Save stores the inputs and prices on this browser. Share link includes the configuration in the address so another device can reopen it. Download CSV exports the shopping list, and Print / PDF opens your browser’s print dialog.