# What to include in a shower base replacement quote in Australia

Plan a shower base replacement quote for one existing shower footprint in Australia. Follow metric measurements, the Brisbane, Queensland worked calculation, scope boundaries and a matching AUD PDF.

Canonical: https://quicklyestimates.com/en-au/guides/how-to-estimate-shower-base-replacement/
Author: Estimates editorial team
Published: 2026-09-25
Updated: 2026-09-25

For one existing shower footprint, start with a defined scope and measurement basis. Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. Identify the base, waste assembly and any wall-repair allowance separately. Price the listed tasks separately and state the condition that would require a revision: Wet subfloor or incompatible drain geometry is a change trigger after removal. The Brisbane, Queensland worked example checks 7 AUD cost lines and a A$2,502.00 fictional subtotal against the measured scope. Review the matching PDF before making your own quote.

THE ESTIMATING ANSWER

For one existing shower footprint, start with a defined scope and measurement basis. Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. Identify the base, waste assembly and any wall-repair allowance separately. Price the listed tasks separately and state the condition that would require a revision: Wet subfloor or incompatible drain geometry is a change trigger after removal.

This guide follows one existing shower footprint in Brisbane, Queensland . The matching itemised estimate and PDF (https://quicklyestimates.com/en-au/samples/shower-base-replacement-estimate/) show how the job brief becomes measured quantities and separate AUD amounts. The responsible role in this scenario is renovation contractor. Check the actual site, selected products, supplier figures and labour plan before issuing a client quote.

1. Define the measured job

Remove a leaking shower base and install a selected new base in the existing enclosure footprint, reconnecting to a suitable drain. Retain sound wall finishes where possible. Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. Record the measurements and existing condition in the estimate before turning quantities into line items. The scope should make clear why this is a separate project from a broader renovation or maintenance quote.

Measure for this job: Measure the finished opening, threshold, drain offset and surround overlap before ordering a base. Put that measured basis beside the relevant PDF lines so area, fitted length and product purchase quantities stay distinct.

2. Build a product and labour schedule

Identify the base, waste assembly and any wall-repair allowance separately. This example has 7 distinct lines, including protection and enclosure removal, old base removal, new base allowance. Use actual supplier prices and labour inputs for a customer job; the displayed amounts are fictional document inputs.

Choose before pricing: Identify the base, waste assembly and any wall-repair allowance separately. The fixture separates protection and enclosure removal, old base removal and new base allowance rather than hiding all work in one figure.

3. Sequence the work and handoffs

Sequence enclosure removal, base inspection, waterproofing and reinstatement so each trade knows the handoff. Show which task depends on access, a selected product or another trade. If that dependency is still open, label the price preliminary and identify the information needed before a firm quote.

Plan the handoffs: Sequence enclosure removal, base inspection, waterproofing and reinstatement so each trade knows the handoff. Note which stage needs access, a selected product or another trade before the next stage can be priced confidently.

4. Set a change boundary

Wet subfloor or incompatible drain geometry is a change trigger after removal. The example excludes full shower wall rebuild, structural floor repair or fixture relocation. Record the discovery, agree the revised work and update the estimate before adding it to the job.

Change trigger: Wet subfloor or incompatible drain geometry is a change trigger after removal. Record the revised task and quantity before it changes the amount your client sees.

Review the Australian job

Verify the existing water and waste connections, access and selected fittings on site. Assign any specialist work and check approval requirements that apply to the actual address.

Count the actual products, site visits and specialist tasks separately. This fixture is a document example, not a substitute for inspecting the building. The amounts are fictional AUD inputs, not current prices for Brisbane, Queensland or another location.

Worked project calculation

The paired PDF has 7 cost lines. For example, Old base removal is 1 each × A$300.00 = A$300.00; New base allowance is 1 each × A$816.00 = A$816.00. Each amount comes from the stated quantity and unit rate, so you can trace the arithmetic back to the job scope.

Shower base replacement example — AUD, fictional inputs Work item | Quantity | Unit rate | Amount |

Protection and enclosure removal | 1 job | A$216.00 | A$216.00 |

Old base removal | 1 each | A$300.00 | A$300.00 |

New base allowance | 1 each | A$816.00 | A$816.00 |

Waste connection allowance | 1 set | A$168.00 | A$168.00 |

Base fitting labour | 1 each | A$516.00 | A$516.00 |

Perimeter waterproofing and seal | 1 job | A$312.00 | A$312.00 |

Cleanup and disposal | 1 job | A$174.00 | A$174.00 |

Illustrative total | A$2,502.00 |

Adding every exact-cent line gives A$2,502.00 . 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. A fictional rate is a document input, not a market quote or a recommended selling price.

Scope and pricing boundaries

Remove a leaking shower base and install a selected new base in the existing enclosure footprint, reconnecting to a suitable drain. Retain sound wall finishes where possible.

Outside this example: No full shower wall rebuild, structural floor repair or fixture relocation.

Separate product allowances, supply, installation, disposal and any specialist work where the actual project needs them. If access or a hidden condition changes, document the affected scope and agree a revised price instead of silently extending the base amount.

Before you send the estimate

- Measure the finished opening, threshold, drain offset and surround overlap before ordering a base.
- Identify the base, waste assembly and any wall-repair allowance separately.
- Sequence enclosure removal, base inspection, waterproofing and reinstatement so each trade knows the handoff.
- Wet subfloor or incompatible drain geometry is a change trigger after removal.

Check business and client details, address, dates, scope, units, line amounts and PDF notes. The shower base replacement PDF example (https://quicklyestimates.com/en-au/samples/shower-base-replacement-estimate/) shows how this fictional project is presented. Its short PDF note is not a substitute for the detailed exclusions above.

Questions about this estimate

Which quantity controls this shower base replacement estimate?

Measure the finished opening, threshold, drain offset and surround overlap before ordering a base.

When should this shower base replacement quote be revised?

Wet subfloor or incompatible drain geometry is a change trigger after removal. No full shower wall rebuild, structural floor repair or fixture relocation.

(https://quicklyestimates.com/en-au/samples/shower-base-replacement-estimate/) First page of the fictional shower base replacement PDF estimate · View the matching example (https://quicklyestimates.com/en-au/samples/shower-base-replacement-estimate/)

TURN THE SCOPE INTO AN ITEMISED PDF

Make your own shower base replacement 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.

Create a quote ↗ (https://quicklyestimates.com/en-au/download/)Open the matching PDF example → (https://quicklyestimates.com/en-au/samples/shower-base-replacement-estimate/)

Related Australian estimating resources

- Matching itemised example (https://quicklyestimates.com/en-au/samples/shower-base-replacement-estimate/)
- Shower wall tiling estimate example (https://quicklyestimates.com/en-au/samples/shower-wall-tiling-estimate/)
- How to create a clear tradie quote (https://quicklyestimates.com/en-au/guides/create-a-tradie-quote/)

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