Name the actual beam.
Request the manufacturer and product designation with the structural documents.
Decks · Southworth, Washington
Decks in Southworth using an engineered beam needs the actual product and permitted service environment identified. A generic LVL or engineered-wood label does not settle outdoor suitability.
Ask the designer to distinguish the structural specification from decorative coating or a proposed trim enclosure. Keep the actual beam’s product information with the design.

Deck construction
Have the qualified designer name the beam product, its intended exposure and any required treatment or protection. Ask how that matches the actual deck’s weather conditions, connections and maintenance access. Do not assume a paint coat, metal cap or field-applied preservative turns a dry-use product into an approved exterior beam. Any product substitution should return to the responsible designer before material is ordered or installed.
Request the manufacturer and product designation with the structural documents.
Have the designer check the product’s permitted exposure and any specified protection.
Keep a different engineered product from entering the order under the same generic beam label.
Before work begins
Submit the actual designed deck and beam specification through the applicable County process. Product suitability is separate from final span, connection and footing design.
This page supplies no structural sizing or treatment recipe and does not claim that all engineered products share the same limitations.
Have the designer verify the named product and intended exposure.
Do not substitute a coating assumption for the actual product and design requirements.
Have the responsible designer review the substitution and complete structural requirements.
Share the actual engineered-product proposal or substitution question with the drawings already available.