OUR WOOD DOORS & DRAWER FRONTS GUARANTEE

Unless otherwise specified, all Keystone Wood Specialties wood doors and drawer fronts are guaranteed as follows for five years from the date of our invoice:

SIZE: The size tolerance for the width and height of doors is +/- 1/32”. Polish sanding may decrease the size of a door slightly more than 1/32”.

NOTE: By its nature, wood expands and contracts with different moisture conditions. Some species expand more than others. Even when manufactured within size tolerances, door/drawer components could expand/contract outside of the size tolerances, if moisture levels are not stable and consistent. When ordering doors unfinished, we recommend finishing them immediately to reduce the amount of moisture absorbed by the wood. The effects of expansion/contraction will be more noticeable in wider pieces such as slab drawer fronts or wide rails and stiles.

WARPING: All single panel framed doors up to 24” wide and/or up to 48” high (or long) are guaranteed against warpage of more than 1/8”. All multiple panel doors up to 48” wide and/or up to 72” high (or long) are guaranteed against warpage of more than ¼”. Slab doors (Pro-Cor doors, one-piece MDF doors, and Batten Doors) up to 24” wide and/or up to 48” high (or long) are guaranteed against warpage of more than 1/8”. Wood slab doors and drawer fronts with no battens are not guaranteed against warpage.

PANELS: All door and drawer front panels are guaranteed not to split or crack. Solid panels will expand and contract based on their environment and this is considered normal. (see information below regarding expansions & contraction) In dry environments, solid panels will shrink, exposing a portion of the panel that is unfinished. This is normal for solid wood panels and can be touched up with our touch-up kits or remedied with increasing the relative humidity level in the area. Plywood, veneered MDF and Superior Green Panels do not expand and contract with changes in temperature and humidity, and we recommend using Superior Green Panels for painted doors and drawer fronts.

RAILS & STILES: All rail and stile joints are guaranteed against glue failure. Joints are not guaranteed against hairline cracks from the normal expansion and contraction typical of solid wood. Lower levels of fluctuation in temperature and humidity will reduce expansion and contraction and result in fewer and smaller hairline cracks. Higher levels of fluctuation will increase expansion and contraction and result in larger hairline cracks.

MITRE JOINTS: Mitre joints are guaranteed against glue failure. Joints are subject to slight opening and closing due to the normal expansion and contraction typical of solid wood. As humidity increases the outside of a mitre will tend to open. As humidity decreases the inside of a mitre will tend to open. This is the normal behavior of wood with humidity changes. We purposefully build our mitre door joints with a small gap on the inside to allow for expansion.

WOOD GRAIN COLOR AND PATTERN: All wood is guaranteed against any structural defects. Grain and color are to be reasonably close to industry standards, unique to the tree it came from, and not “rubber stamped” like imitation wood grain found on printed melamine and other man-made materials. Products where the grain and color matching of the natural wood is not acceptable to the customer will be replaced at the customer’s expense.

REV. 6.6.25

 

Wood Movement Based on Fluctuations in Humidity

Wood is a natural resource that is constantly adapting to its environment. It will either absorb moisture when ambient conditions become more humid, or it will expel moisture when ambient conditions become drier. In humid conditions when wood absorbs moisture it will expand in both thickness and width (not length). This is both observable, repeatable and predictable. (These charts help you accurately predict how much each species of wood will expand and contract based on moisture changes.) The same goes for dry environments; wood will expel moisture and shrink on both its thickness and its width. These movements are also observable, repeatable and predictable. The only way to cause the wood to expand or contract is to adjust its environment by either introducing moisture to its current environment or by removing moisture from its current environment. The reaction of wood to its environment is not a manufacturing defect, and cannot be predicted or planned for. The best way to ensure that wood movement is limited is to maintain a consistent temperature and humidity level in the home by using humidifiers, as needed, in the winter during dry seasons, or by using dehumidifiers in damp areas or during the summer. Air conditioners also remove excess moisture. A hygrometer can help you monitor your indoor humidity levels.