Use consistent measurements
State whether the price uses plan projection, developed membrane area or another basis.
PROJECT QUOTATION
Procurement & delivery
Agree scope, materials and delivery conditions before comparing prices; a clear enquiry reduces repeated clarification.

PROJECT OVERVIEW
Project quotations depend on design and site conditions. Similar areas of carports, landscape roofs, stands and tank covers can require different forms and works. This page helps organise enquiries, compare offers and manage changes; the pricing article explains individual cost components.
State whether the price uses plan projection, developed membrane area or another basis.
Identify foundations, drainage, transport, lifting and taxes individually to reveal omissions.
Link each quote to its drawings and materials schedule, confirming cost and programme effects of changes.
Without complete drawings, provide location, use, length, width, height and photographs, with budget range and desired delivery date.
Initial estimates guide decisions. Prices become more precise once dimensions, foundations and materials needing further work are confirmed.
Ask for separate design, materials, fabrication, foundations, transport and installation items, listing unknown conditions separately.
Check whether removal, reinstatement, night work or remote mobilisation actually apply. Unnecessary works need not be assumed, but conditions should be explicit.
Column, material, colour and drainage changes can affect fabrication and site work. Record the approving person and drawing revision.
Compare payment stages, validity, delivery and acceptance as well as price. Distinguish material warranties, workmanship warranties and design life.
SCOPE & COORDINATION
Use the same scope for proposals, quotations and handover.
| Work item | Discussion and delivery | Conditions to confirm |
|---|---|---|
| Survey and design | Required proposal and document detail | Survey arrangements and design deliverables |
| Materials and fabrication | Pricing against approved material and component lists | Specifications and measurement basis |
| Transport and site works | Actual destination and access conditions | Unloading, lifting, installation and reinstatement |
| Interfaces and handover | Drainage, equipment interfaces and documents | Taxes, warranties and acceptance conditions |
PROJECT JOURNEY
Collect site, use, dimensions and expected scope.
Confirm outstanding measurements, selections and external coordination.
Compare cost and documents against equivalent scopes.
Align drawings, materials, changes and acceptance requirements.
START YOUR PROJECT
Share the location and current requirement so we can review conditions and scope together.
QUESTIONS & ANSWERS
First check measurement, structure, materials and installation boundaries. Identically named unit prices can represent different work.
Yes, with clearly stated assumptions and unresolved conditions. An estimate is not the final contract price.
Compare complete costs after establishing equivalent requirements and documents, then review delivery, changes and maintenance conditions.
Have the supplier identify unchanged and revised items and issue a new version reflecting the effects.