PURPOSE

To prevent veneer bubbling and delamination on doors manufactured with strandboard (Timberstrand) core, caused by voids and chips in the core surface that leave the veneer without a solid substrate to adhere to.

RESPONSIBILITY

Manufacturing staff cutting and preparing door cores; Project Managers tagging projects for strandboard core construction.

PROCEDURE

1. Identify any project/work order tagged to use strandboard door core prior to core cutting.
2. After the core is cut, inspect both faces for voids and deep chips (commonly caused by fly cutting during veneer prep).
3. Fill any voids in the core so the veneer has a fully solid surface to adhere to — do not veneer directly over an unfilled void or chipped surface.
4. Apply a 1/16" or 1/8" supercore veneer face to both sides of the core before final veneering.
5. Add solid wood rails and stiles to the core edges so the strandboard core and supercore layer are concealed and do not show on the edge.
6. If a bubble or delamination is discovered on a finished or in-process door, document it with a photo and route it to the Project Manager and Manufacturing lead for repair and root-cause review.

EXPECTATION

Veneered strandboard-core doors ship without bubbling or delamination caused by core voids or chipping.

OPEN ITEM — CONFIRM BEFORE FINALIZING

This procedure is based on an observation and proposed fix raised by Steve Smith (PM) on 6/2/2026, who explicitly flagged it as "something we should discuss as a team with manufacturing" rather than an already-agreed standard. This has not yet been confirmed as final Manufacturing policy.