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GUIDES FOR CONTRACTORS

Short, practical pieces on the work between a plan and a build. No filler.

Topic

Coordination

How shop drawings, coordination drawings and the model fit together, and what your GC is really asking for.

Shop Drawings vs. Coordination Drawings: What Your GC Actually Wants

A shop drawing tells a fabricator what to build. A coordination drawing tells a general contractor that everything fits. Both come off the same model, they are read by different people, and swapping one for the other is the most common reason a submittal comes back.

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Topic

Fire Protection

Sprinkler shop drawings, hydraulic calculations and what a plan reviewer checks first.

Fire Sprinkler Hydraulic Calcs, Explained for Contractors

A hydraulic calculation demonstrates that the most demanding area of a sprinkler system can be supplied at the required density with the water actually available. Most rejections are not calculation errors. They are mismatches between the calculation and the drawing.

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Topic

Process Pipe

From the coordinated model to spools your shop can build: break points, isometrics and piece marks.

Pipe Spool Drawings 101: From Model to Fab Shop

Spooling starts with break points. Where a line is cut determines what the shop can build, what fits on a truck and what a crew can lift into place. Break points chosen for drawing convenience produce spools that are technically correct and practically useless.

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Topic

Site Verification

3D scanning and field verification before anything is cut.

Why 3D Scanning Before You Build Saves NJ Contractors Money

Record drawings age badly. On a renovation, the set you were handed describes a building that no longer exists in that exact form. A scan replaces assumption with measurement, and it does it while a change is still cheap.

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