Start with the information the engineer needs
Bring plot dimensions, architectural drawings, proposed floors, intended room use, site photographs, and any soil or boundary information. This prevents an early estimate from being mistaken for a final design. If the plot has unusual soil, a slope, a basement, or an adjacent deep excavation, ask whether additional investigation is required.
What to expect in a useful scope
- Foundation assumptions and the information used to select them.
- Member drawings and a clear schedule for slabs, beams, columns, footings, and reinforcement.
- Concrete and steel specifications, cover requirements, and details for openings and staircases.
- Coordination notes for plumbing sleeves, electrical openings, water tanks, and later modifications.
- A revision process: who approves changes and how drawings are reissued.
Use the BOQ as a comparison tool
Once drawings are issued, use a BOQ to compare like-for-like quotations. Keep the drawing revision, material grade, unit, quantity, waste allowance, transport, and labour scope beside each line item. A cheaper quote that excludes shuttering, testing, or cartage is not necessarily cheaper after work starts.
Questions worth asking before work begins
Ask which drawings are approved for construction, who will answer site queries, how substitutions are documented, and whether the contractor will provide bar-bending schedules and concrete test records. Put answers in writing.