Storing Countertops Before Installation

Countertops are finished work. Do not store them like framing material.

The right method depends on the material, piece geometry, cutouts, seams, support, packaging, and manufacturer instructions. Get that method from the fabricator before unloading.

Choose the storage area first

The area should be:

• dry and protected from weather;
• within the temperature/humidity limits required by the product;
• secure from traffic and unauthorized handling;
• clean and free of grit, standing water, and trade debris;
• large enough for approved racks/supports and safe access;
• separated from welding, painting, overhead work, and chemical storage; and
• close enough to the installation route to avoid repeated moves.

Preserve support and restraint

Follow the fabricator/manufacturer method for flat or vertical storage, support spacing, rack angle, edge protection, stacking, and restraint. Protect cutouts and narrow sections from concentrated load.

Wilsonart publishes handling/fabrication requirements for THINSCAPE (Wilsonart THINSCAPE technical data). Corian maintains separate product/fabrication documentation (Corian documentation library). Do not blend the two into a generic instruction.

Keep labels with the work

Labels must remain readable without moving every piece. Maintain project, room, top mark, orientation, and piece sequence. If protective wrap is removed for inspection, restore protection without trapping water or contaminating the face.

Control custody

Use a storage log for delivery group, top marks, accepted condition, location, moves, and release to installer. Limit handling to trained personnel with the correct equipment.

Reinspect after every move

A piece can be accepted at the dock and damaged during a later floor move. Before and after relocation, confirm labels, protection, support, restraint, and visible condition. Record who moved the work and its new staging location.

Keep heavy or awkward pieces off routes shared with carts and lifts. Do not use countertop racks as temporary storage for unrelated materials. If construction conditions change—water event, loss of climate control, overhead work—move the tops using the approved method or add protection immediately.

ANSI/AWI 1236 general requirements address storage, handling, and protection within its scope (AWI general requirements). The receiving guide establishes the starting condition; the installation-day checklist is the release from storage.

Red flags

• Tops leaning loose against a wall.
• Finished faces touching abrasive material.
• Labels removed or facing inward.
• Storage under active piping or overhead work.
• Repeated relocation by other trades.
• Cutouts used as handholds.
• Material stored in uncontrolled conditions contrary to guidance.

Short storage is still storage. Protect the work until the installer takes custody.