Engineered Wood

Knocking on Wood
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Knocking on Wood

Timber frame construction is making a big dent in concrete's share of the low- to... More

Tall Wood Better than Concrete?
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Tall Wood Better than Concrete?

Another article in the series comparing timber construction to concrete... More

Engineered Forms and Shores
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Engineered Forms and Shores

Contractors today have more options than ever before in selecting form and shoring... More

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Some Imported Concrete Form Panels Fail to Meet Grade

APA is cautioning the marketplace to beware of imported panels that in many cases fail to meet North American standards. APA recently tested samples of nontrademarked imported concrete form panels in which the average glue bond performance of the sample d More

Getting More Out of Plywood Forms
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Getting More Out of Plywood Forms

The North American plywood industry has been using the same wood veneers and the... More

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Engineered Wood for Form Construction

Dwindling supplies of suitable sawn dimension lumber, as well as the roller-coaster movement of lumber prices, have led some form builders to use other framing materials to support formwork. Structural composite lumber (SCL), a precision-manufactured engineered-wood product, is an alternative that offers some of the same properties of wood along with enhanced strength and reliability. Like ordinary wood, the manufactured beams are workable and easy to handle, but they don't warp or twist, and they're 100% reusable. They reportedly cost less than aluminum and more than sawn lumber. However, they offer a greater return on investment, particularly when you consider that typically 20% or more of sawn lumber is discarded due to defects. More

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Choosing Support Members for Wall and Deck Forms

The performance of any form sheathing, whether made of plywood, metal, or fiberglass, is only as good as the performance of its support members. Form support is provided by various components. For wall panels, studs supported by cross members called walers provide direct support. For horizontal decking, joists give direct support. To hold support members in place, tension members are used. Because of their important function, support members must be carefully chosen to coordinate with sheathing selection. More

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Fabricated Wood Members Support Formwork

Will manufactured, engineered wood beams and girders revolutionize formwork construction as manufactured plywood panels did in the past? More

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Choosing and Using Form Panel Boards

Form sheathing--the part of the form that is next to the concrete--can be made of many different materials: lumber or plywood; glass fiber reinforced or unreinforced plastics; steel and aluminum; reconstituted wood-base panels; glass fiber reinforced concrete. More

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