EXAMPLE AT A GLANCE
This fictional Toowoomba, Queensland garden subsoil drain installation example contains 7 itemised costs totalling A$5,597.34. Its app-exported PDF uses the exact metric quantities and AUD rates in the table, with scope assumptions and exclusions explained below.
Project scope: One wet garden run
Install a shallow subsurface drain across an accessible garden run and connect it to a confirmed lawful discharge point.
This original fictional example is set in Toowoomba, Queensland. Harbour & Gum Projects and Alex Morgan are made-up parties. The matching Australian guide explains which measurements, product decisions and site conditions turn this brief into a client-ready quote.
- Example location
- Toowoomba, Queensland
- Prepared by
- Harbour & Gum Projects · fictional business
- Prepared for
- Alex Morgan · fictional customer
- Issued / valid through
- 25 September 2026 / 25 October 2026
Itemised garden subsoil drain installation costs
These 7 AUD lines reproduce the native app export. Trench excavation is measured as 27.43 m; Perforated pipe allowance uses 27.43 m. Some lines are measured work while others are a product or site-task allowance. Read the unit before reusing the structure for a different job.
| Work item | Quantity | Unit rate | Amount |
|---|---|---|---|
| Drain route survey | 1 job | A$252.00 | A$252.00 |
| Service check and protection | 1 job | A$192.00 | A$192.00 |
| Trench excavation | 27.43 m | A$59.00 | A$1,618.37 |
| Perforated pipe allowance | 27.43 m | A$32.00 | A$877.76 |
| Stone and fabric allowance | 1 job | A$744.00 | A$744.00 |
| Pipe bedding and connection | 27.43 m | A$47.00 | A$1,289.21 |
| Backfill and turf reinstatement | 1 job | A$624.00 | A$624.00 |
| Illustrative total | A$5,597.34 | ||
Product selection and installation should be clear from the descriptions. Confirm delivery, fixings, preparation, waste and any specialist trade responsibility for the actual job rather than assuming each allowance covers them.
Check the arithmetic
Trench excavation: 27.43 m × A$59.00 = A$1,618.37. Perforated pipe allowance: 27.43 m × A$32.00 = A$877.76. All other lines use the same quantity-by-rate calculation and sum to A$5,597.34. Every fixture line lands on an exact cent, so the native PDF subtotal equals the displayed table total.
Measurement to check: Record run length, trench depth, fall, soil conditions and discharge location. Selection to check: Separate perforated pipe, aggregate and geotextile quantities from digging and reinstatement. The PDF uses a 0% tax input only to make its fictional arithmetic visible. Confirm the GST treatment that applies to the actual job and set your own markup before sharing a client quote.
Assumptions and exclusions
Trace buried services and confirm discharge before excavation.
Outside this stated scope: No basement waterproofing, drainage approval or major landscape reconstruction.
Unexpected utilities or no feasible outlet can stop the base design. A changed condition should lead to a newly measured quantity, revised allowance or separately agreed task. Keep the client informed of the changed figure before producing another PDF.
Open the app-exported PDF
The document was exported from Estimates using the fictional business, client, dates, short PDF scope, notes and cost lines shown here. The image is the first-page preview. Open the complete PDF to check all entries; no rate is a current Toowoomba, Queensland market claim.
Adapt this example to a real job
- Write the actual work boundary and site address; use this measurement basis: Record run length, trench depth, fall, soil conditions and discharge location.
- Confirm products, access and handoff responsibilities; record this selection decision: Separate perforated pipe, aggregate and geotextile quantities from digging and reinstatement.
- Replace all fictional product, labour and subcontractor rates with your own evidence.
- Review quantities, extensions, total, GST and markup settings, client details and validity date.
- Preview every PDF page and share the quote with the agreed exclusions.
- Record run length, trench depth, fall, soil conditions and discharge location.
- Separate perforated pipe, aggregate and geotextile quantities from digging and reinstatement.
- Trace buried services and confirm discharge before excavation.
- Unexpected utilities or no feasible outlet can stop the base design.
Read the paired estimating guide for the project-specific scope and work sequence.
Questions about this estimate
Which quantity controls this subsurface garden drain installation estimate?
Record run length, trench depth, fall, soil conditions and discharge location.
When should this subsurface garden drain installation quote be revised?
Unexpected utilities or no feasible outlet can stop the base design. No basement waterproofing, drainage approval or major landscape reconstruction.
TURN THE SCOPE INTO AN ITEMISED PDF
Make your own garden subsoil drain installation estimate.
Describe the actual job in Estimates on iPhone or Android or use AI assistance to start a draft. Check every measurement, quantity, rate, allowance, client detail and note before exporting your PDF. Some app features may require an in-app purchase.
