What procedural mechanism did the construction company potentially use regarding its purchase of lumber?

The construction company likely utilized interrogatories as a procedural mechanism in its purchase of lumber. Interrogatories are a form of discovery used in civil procedure where one party submits written questions to another party, which must be answered in writing and under oath. This method allows for the gathering of relevant information and clarification of issues in a case, making it particularly useful when seeking specifics about a transaction, such as the terms of the lumber purchase, quantities, pricing, and other contractual obligations.

In this context, the construction company might have used interrogatories to elicit detailed responses that clarify any uncertainties around the lumber transaction, aiding in the resolution of any potential disputes or for evidentiary purposes in litigation. The other procedural mechanisms mentioned, such as depositions, affidavits, and requests for admission, serve different functions and may not be as directly applicable for the situation of acquiring fundamental information about a transaction in writing.