Client
Ryan Co.
Architect
Neumann Monson
General Contractor
Ryan Co.
Base Building Engineer
Raker Rhodes Engineering
Structural Engineer - Timber
StructureCraft
Our Service
Design Build Timber
Size
65,000 sqft
Location
Des Moines, IA, USA
Completion
2019

111 East Grand Office

Client
Ryan Co.
Architect
Neumann Monson
General Contractor
Ryan Co.
Base Building Engineer
Raker Rhodes Engineering
Structural Engineer - Timber
StructureCraft
Our Service
Design Build Timber
Size
65,000 sqft
Location
Des Moines, IA, USA
Completion
2019

The First Dowel-laminated Timber Office Building in North America

111 East Grand Office is the first spec office building in downtown Des Moines in over a decade, with a prominent location next to city hall. As the design-builders for the timber superstructure, we worked alongside Neumann Monson architects. The 4-storey mass timber building has retail at the first level, with 3 levels of commercial office space above. The structural gravity system is DLT (dowel-laminated timber) panels over Glulam post and beam substructure. The lateral system is comprised of pre-cast concrete walls and core, creating a fully pre-fabricated superstructure that could be installed much faster than conventional construction.

StructureCraft won the project after submitting a response to request for Design-Build proposals in Fall 2017, joining the team of Ryan Co., Neumann Monson and Raker Rhodes. We were chosen for our extensive engineering and construction experience in large North American mass timber jobs, as well as our turnkey delivery method. Our engineering role is to take the timber superstructure from schematic design to detailed fabrication design, sealing the drawings with our in-house licensed P.E.

This project displays a simple, efficient, yet elegant mass timber design leading to a fast site installation.

Each DLT panel was fabricated with shallower boards at its edges to create chases for housing electrical conduits.


Design

Fabrication


Installation



Awards

2020 ENR Midwest
Best Project Award for Office/Retail/Mixed-Use
2020 Wood Design Award
Wood Design Award for Commercial Mid-Rise
2019 AIA Iowa
Excellence in Design Award
2019 AIA Central States
Excellence in Design Award