Prepare a hole schedule
Record each required diameter in millimetres, the quantity and the location shown on the plan. Identify whether it passes through a wall, floor or other concrete element. If a diameter or location is provisional, mark it that way rather than mixing it into the confirmed schedule.
Record concrete thickness and drilling access
Include concrete thickness where known, the floor level, working height and the route for equipment. Show access to the work face and any relevant opposite-side constraints. Photographs support the description but do not replace structural or services information.
Gather structural and services information
Share available reinforcement, post-tensioning and embedded-services information. Say what investigation has been completed and what is still needed. The project’s responsible parties determine design, clearance and approvals; the enquiry is a scope-review step.
Confirm core handling and the finished penetration
State what the next trade needs from the penetration and ask the office to review any angle or finish requirement. Confirm core handling, water/slurry arrangements and making good where relevant. A requested date and indicative layout remain subject to agreed scope and availability.
Your enquiry checklist
- Diameter, quantity and marked locations
- Known thickness, working height and floor level
- Available structural/services information
- Handling, finish and programme requirements
Send what you know and identify details still being confirmed. These guides help describe a project; the agreed site-specific scope determines the work.