Closing Scope Gaps in the Field

Welcome

Picture a superintendent on a medical office job. Drywall is going up on the second floor and the crew is moving fast. On Thursday afternoon the owner's rep walks through and asks where the backing is for the exam room monitors and the restroom grab bars. Nobody installed it. The framer thought the drywall crew did blocking. The drywall crew thought the framer did. Friday morning, forty sheets of finished board come back off the wall. And here's the part that stings: the gap was on the list. The project manager had it on the gap list back in the office. It just never made it to the field. A gap list in a drawer protects nobody.

Why it matters

Estimating and buyout close most gaps on paper. But paper doesn't build buildings, people do. Crews change, foremen change, and every new person on the job brings their own idea of what their trade does. The field is where you find out whether everybody actually has the same expectations you do. And in the field, the cost of a gap climbs every day. Before a wall is closed, missing blocking is a few dollars of lumber. After the wall is closed, it's demolition, patching, finishing and lost days.

The gap list in the field

Take the gap list out of the office and put it in the superintendent's hands. Walk it at the preconstruction meeting with every foreman in the room, and read the items out loud: here's what you furnish, here's what you install, here's what you connect, here's who wires it. Ask each foreman to say back what's theirs. When a foreman says "that's not us," you just found a gap, before anybody built anything. Then post the list in the job trailer, and update it every time a change order or an RFI moves work from one trade to another.

Pre-installation meetings

Before each major trade starts, and especially before walls and ceilings close, hold a short preinstallation meeting with the trades that meet each other. Mechanical, electrical and controls before the rooftop units set. Plumbing and site utilities before anyone trenches to the building. Framing, drywall and every trade that needs backing before board goes up. Go through the handoffs on the gap list one by one. Who's connecting the fans to their controls? Who's setting the hose bibbs and wall hydrants? Who's running the condensate? Get a name for every handoff, write it in the meeting notes, and send them out the same day.

Going Deeper (Intermediate)

The superintendent's best tool is a weekly walk with the gap list in hand. Look for orphan work: things installed but not connected, stubs with no fixture, equipment with power but no controls, penetrations with no firestopping. The single most important walk is the pre-close-in walk. Before any wall or ceiling gets covered, check that the blocking, the firestopping, the rough-ins and the low-voltage wiring are actually there. Once the board goes up, every gap behind it gets far more expensive to fix.

Advanced / Pro-Level

Here's the hard truth: closing gaps isn't a one-time event, it's a habit, and habits have to be trained. Your subs don't automatically know your expectations, and your own people don't either. So train it on purpose, on every job. Walk new assistant superintendents and project engineers through the gap list. Have them lead a preinstallation meeting while you watch. After every job, hold a short lessons-learned review: what gaps did we hit, what did they cost, and what goes on the gap list template for next time? Every gap you pay for once should become a line on the list, so you never pay for it again. Do that over and over, job after job, and gaps stop being surprises.

Practice Challenge

Practice Challenge At the preconstruction meeting the plumbing foreman says the exterior hose bibbs and wall hydrants are "not us." The site contractor says the same. What do you do? (Answer: it's a gap found in time. Assign it to one trade in writing, price it as a change if it wasn't in either contract, update the gap list, and confirm it at the plumbing pre-installation meeting.)

Putting It to Work — Real-World Use

Think about a superintendent who held a fifteen-minute pre-installation meeting before the rooftop units set, and found that neither mechanical nor electrical had the duct smoke detector wiring. Fixed with one line in the meeting notes. Or a foreman who said "that's not us" about the exterior hose bibbs at the preconstruction meeting, and the project manager added them to the plumbing subcontract that same week. And picture the company that started a gap list template after paying for the same missing fan controls twice. On the third job it was on the list, it got priced, and it got built.

Things to Think About

Things to Think About Does your field team have the gap list, or is it in the office? Which pre-installation meeting would have saved money on your last job? What orphan work is on your job right now? How are you training the next superintendent to catch gaps?

The Real Cost of Cutting Corners

The Real Cost of Cutting Corners Skip the preconstruction read-through and the pre-close-in walk, and you've decided to find gaps after the board is hung and the ceiling is set. That's demolition, patching, refinishing and lost days, plus an owner who now wonders what else was missed. Fifteen minutes with the gap list in the field is the cheapest insurance on the job.

Takeaway

Gaps you close on paper still have to be closed in the field. Take the gap list to the job, read it out loud at the preconstruction meeting, and have each foreman say back what's theirs. Hold pre-installation meetings where trades meet, walk the job every week looking for orphan work, and never close a wall or ceiling without checking what's behind it. Most of all, train yourself and your people to do this on every job, and add every gap you pay for to the list so it never costs you twice. Here's your assignment. On your current job, or the last one you worked, walk one area with a gap list in hand before it's closed in. Note every item that's installed but not connected, every penetration without firestopping, and every place that should have blocking. For each one, write down whose it should be. Bring your list to the next session, and we'll turn the best catches into lines on the company gap list template.