Office & Retail Renovation in West Hills

West Hills shop and office renovations with laminated veneer lumber headers that stay straight over a wider opening, on engineered posts. Aspenwell.

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Laminated veneer lumber is the header we often specify over a widened West Hills shop opening. Made of thin veneers bonded with the grain running one way, it stays straight and resists the twisting and checking that a large sawn beam can show as it dries, which matters on an inland wall that takes hard sun and dry air. A straight header keeps the glass below it from binding or cracking.

Sizing the beam and its supports

The engineer sizes the header for the roof, the wall and anything hung above the opening, and checks deflection so the beam does not sag onto the frame below. Built-up posts or steel columns carry each end down to a footing, and the connections at top and bottom are specified hardware. If the old wall braced the building, a shear panel or a steel frame replaces that strength nearby. Where the span is long, a steel beam may suit better, and the engineer makes that call.

Protecting the wood and the finish

Engineered lumber has to be kept dry during construction, so it is stored off the ground and covered until the wall is closed. Once set, the header is wrapped by building paper and flashing at the head of the opening, then the exterior finish. Fasteners into the header follow the manufacturer's edge distances so the layers do not split. LADBS reviews the beam, posts and footings with the rest of the set, and the inspector sees the framing before it is covered.

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