Design, Engineering & Build Insights
Practical notes from the TRD Builders team on design-build delivery, engineering coordination, DOB filing and construction across New York and the surrounding region.
Articles
Renovation & Construction
Removing Load-Bearing Walls in Pre-War Manhattan: Structural Probes, Steel Moment Frames & DOB Directive 14
A licensed structural engineer’s field guide to removing interior load-bearing masonry and structural partitions in pre-war NYC co-ops and condos without risking settlement or board delays.
Renovation & Construction
Combining Apartments in NYC: Cutting Pre-War Floor Slabs, Vertical Openings & Wet-Over-Dry Co-op Compliance
Technical guidelines for horizontal and vertical apartment combinations in NYC co-ops—covering slab core-drilling, steel stair trimmers, and wet-over-dry alteration rules.
Renovation & Construction
AWI Custom Grade Millwork: 3D LiDAR Scanning for Pre-War Masonry Deflections & Bespoke Joinery Tolerances
How 3D LiDAR point-cloud scanning eliminates on-site scribing and bridges pre-war masonry out-of-plumb deflections with AWI Custom Grade architectural millwork.
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