Wolff Co and Katerra Partner on North Seattle Project Using Cross-Laminated Timber

The Postmark is among the first developments in the country to use CLT for floor and ceiling assemblies.

by Symone Strong, Multifamily Executive

Built on the former site of Shoreline, Washington’s post office, The Postmark is a new 243-unit, mid-rise apartment community 10 miles north of downtown Seattle, where an impending extension of the city’s light rail system is driving growth for housing.

Developer The Wolff Co. partnered with construction firm Katerra to design the two-building, five-story project, which is among the first developments in the country to use cross-laminated timber (CLT), or large-scale, prefabricated, solid engineered wood panels, for the floor and ceiling assemblies.

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