After fastening the second wall cabinet securely to the wall

• A. clamp and fasten the cabinets together
• B. nail into studs only
• C. attach doors first
• D. remove the first cabinet

Answer: (A)

The main idea is that a run of wall cabinets must be tied together so they act as a single, rigid unit. After the second cabinet is securely fastened to the wall, you clamp the two cabinets and fasten them to each other along the joint. This keeps the two boxes perfectly aligned, ensures a consistent gap across the run, and distributes loads so the entire installation stays square and stable. If you only nail into studs, the cabinets can shift relative to one another, causing misalignment or gaps. Attaching doors first is premature because the cabinets need to be square and joined before the doors are installed, and removing the first cabinet would break the continuous run.