Commercial Kitchen Floor Sinks: Plan Before You Pour

August 24, 2026
Filed Under
Pre-Construction Planning
Featuring
HRI Design Team
Drawn By
the HRI Team
Sheet
Field Notes / 007
Introduction

Most of a commercial kitchen build can still be changed after the fact. Floor sinks and drains are not one of those things. Once the slab is poured, moving a floor sink means breaking concrete — a very different phone call than a change order.

Here’s the detail that’s easy to miss, and how a 3D walkthrough catches it before it’s a problem.

Summary · Key Takeaways
01
Floor sinks and drains have to be placed before the concrete floor is poured — one of the few decisions construction won’t let you undo later.
02
They’re not optional extras. Dishwashers, ice machines, and other equipment with indirect waste connections drain into them.
03
A model you can walk through before the pour is how every drain and floor sink location gets confirmed while it still costs nothing to move.
04
Catching this on paper, or in 3D, is free. Catching it after the pour means cutting into a finished floor.
SHORTDon’t Forget This With Your Kitchen Floor
“One overlooked detail can lead to expensive renovations down the road.” — from HRI’s YouTube Shorts.
Sheet 02 · The Process
How We Catch It Before The Pour
This is the same reason HRI models every kitchen in 3D before construction starts — it’s not just about how the space looks.
01
Design Is A Decision, Not A Guess
Every run, every clearance, every piece of equipment gets resolved in the model, long before it’s on the floor.
02
Every Inch, Accounted For
Refrigeration, the exhaust hood, the cook line, every fixture — spec-level 3D means nothing gets guessed at, including what has to go in the floor before anyone pours it.
03
You Walk The Kitchen Before We Pour The Slab
The model gets walked, room by room, while construction hasn’t reached the point yet where a missed detail means breaking concrete.

Design is a decision, not a guess.

Sheet 03 · Q&A
Questions

Q01What is a floor sink, and why does it matter?

A floor sink is a plumbing fixture set into the floor before the concrete is poured, typically draining equipment like dishwashers and ice machines through an indirect waste connection. Its location has to be locked in before the slab goes down.

Q02What happens if a floor sink gets missed during planning?

One overlooked detail can lead to expensive renovations down the road. Moving a drain after the floor is poured means cutting into finished concrete instead of adjusting a plan.

Q03How does HRI make sure nothing gets missed before construction starts?

Every kitchen gets modeled in 3D and walked through, room by room, before the pour — so floor sinks, drains, and equipment clearances are confirmed while they’re still easy to change.

Watch the full short on HRI’s YouTube channel. HRI Commercial Food Service designs and installs commercial kitchens across Pennsylvania, Ohio, and New York — if you’re still in the planning stage, that’s the best time to call. Learn more at hriusa.com.

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