01 / EXISTING CONDITIONS
Check the starting point.
Identify equipment, routes and access that have been verified, and the concealed or inaccessible conditions that remain assumptions.
FOR ARCHITECTS & ENGINEERS
Bring the design and the field conditions together.
Resolve installation questions while the drawings and equipment decisions can still respond to them.
YKCA supports project discussions around constructability, trade interfaces and the practical sequence of work. The design team retains its design responsibilities; the construction conversation makes existing conditions, access and installation assumptions easier to review.
Discuss Design Coordination
MAKE THE INTERFACES VISIBLE
Details that belong in the same conversation.
Coordinate the parts that cross disciplines before they become field conflicts.
02 / INTERFACES
Connect equipment to the space.
Review locations, clearances, structural openings and coordination with architectural finishes and other building systems.
03 / SEQUENCE
Plan how it gets built.
Consider installation access, shutdowns, inspection points and the order of trades alongside the finished design.
YOUR STARTING POINT
Choose the coordination stage.
The information needed changes as the design becomes more complete.
Early design
Identify the design constraints.
A preliminary review can surface questions before equipment and layouts are fixed.
- Project goals and existing-condition information.
- Concept layout and major equipment assumptions.
- Areas with difficult access or operating restrictions.
- The specific constructability questions for review.
Design development
Review the cross-trade details.
Use a coordinated drawing set and the current equipment information.
- Current plans and revision dates.
- Selected equipment and manufacturer requirements.
- Architectural, structural and building-system interfaces.
- Open decisions that affect pricing or installation.
Construction questions
Make the field question traceable.
A clear request identifies the condition, the affected detail and the decision needed.
- Drawing or specification reference.
- Field observation and relevant photographs.
- The conflict or installation question.
- The decision owner and schedule dependency.
COORDINATED DOCUMENTS
A clear question gets a clearer answer.
Design responsibility
Identify which professional is responsible for calculations, stamped documents and design decisions. Construction input does not replace required professional design.
Equipment changes
Review the impact of a proposed substitution on the connected systems, space and installation. A matching product category does not establish equivalent requirements.
Field records
Keep approved responses and revisions connected to the construction documents and final records so the installation reflects the agreed decisions.
BEFORE THE NEXT STEP
Before the coordination review.
When should the contractor join the design discussion?
When field access, equipment routes or installation sequence could materially affect the design. State the questions to review so the conversation stays focused.
Can you review a proposed equipment location?
Share the current drawings, equipment information and known site conditions. Any required design or agency approval remains part of the project’s review process.
Does this include engineering or stamped plans?
Only if the project agreement expressly identifies that service and the responsible professional. Do not assume construction review includes professional engineering.
How should a field question be sent?
Include the drawing reference, observed condition, photos or dimensions available and the decision needed. Identify any work that depends on the response.
START WITH THE INTERFACE
Resolve the question while it is still on the plan.
Share the current design stage and the field or installation issue you want to review.
FROM THE YKCA JOURNAL
Make this page useful for your project.
When should a design team involve a contractor?
When existing conditions, access, trade interfaces or installation sequencing could change a design decision. Share the current drawing issue and a focused question while alternatives can still be considered.
