Buffers Are NOT Shared Float

Buffers Are Not Shared Float (You Own Them)

Here’s the question I got: if you do your macro-level Takt plan according to the calculator, and that’s what your owner has, and then you go ahead and try to go faster with an optimized zoning strategy, which means that you gain buffers, how does that tie into the legal contract language?

And I was so proud to say that those are buffers. Schedule contingency is what’s in most of your contracts. And until owners get wise to this and try to screw everybody out of it, which I hope they never do because it’s not right, it’s not per the definition buffers are not schedule contingency or float. And so when the contract says “all float will be shared float,” that does not apply to buffers at all.

Let me explain why.

The Pain of Losing Buffers to Shared Float Language

Here’s what happens when you think buffers are shared float. You gain buffers by optimizing your zoning strategy. You go from 95 days to 69 days. That’s 26 days of buffers. And then the owner says, “Great, we’ll use those 26 days for owner changes.” Or, “We’ll move the milestone up 26 days.” And now you have no buffers. You have no protection. And when a delay hits, you’re exposed. You rush. You push. You panic. And the schedule collapses.

And you think this is legal because the contract says “shared float.” So you give up your buffers. And the project suffers. But here’s the truth: buffers are not shared float. And the contract language doesn’t apply to buffers.

What Are Buffers (And Why They’re Different from Float)

Buffers are like an allowance, like a financial allowance. It’s for a specific thing. And those buffers belong to the contractor and trade partners, specifically to cover the risks of that train in a phase. And so your contract does not stipulate that you have to give those up, or that it’s wrong. There’s no contract anywhere that says that you have to give up those buffers or that you can’t go faster.

Here’s the difference. Float, or schedule contingency, is a general time cushion in the overall schedule. Contract language often says “shared float” meaning owner and contractor share it. It’s not specific to any phase or trade. It can be used by the owner for changes or by the contractor for delays. That’s float.

Buffers are different. Buffers are a specific time cushion for a specific phase’s risks. They belong to the contractor and trade partners. They cover the risks of that train in that phase. They cannot be taken by the owner because they’re specific to the train’s risks. Buffers are to absorb or to be used for the risks of a train in a phase. And that is the bottom line. And that is at the contractor and trade partner’s discretion. And you as an owner cannot take them.

Why Contract Language Doesn’t Apply to Buffers

So the point that I’m trying to make is that if you’re using buffers in a Takt Production System, those buffers are not shared float, and you are legally covered. And could a lawyer twist and turn this and turn it into something stupid? Absolutely. But for now you’re covered. And the biggest thing for me is you can feel ethical about everything you’re doing because it is ethical and it’s per the definition.

Here’s why contract language doesn’t apply to buffers:

• The contract says “shared float” but buffers are not float: Float is general schedule contingency. Buffers are specific to a phase’s risks. They’re different things. The contract language about float doesn’t apply to buffers.
• The contract doesn’t say you can’t go faster: There’s no contract anywhere that says you can’t optimize your zoning strategy and go faster. If you go from 95 days to 69 days, that’s optimization. Not shared float.
• Buffers are owned by contractor and trades: Because they’re specific to the risks of that train in that phase. The owner doesn’t own those risks. The contractor and trades own those risks. So they own the buffers.
• Buffers are not contingency: Contingency is for everything. Buffers are for a specific thing the risks of a specific train in a specific phase. That’s the definition. And definitions matter legally.

So remember that your buffers are not shared float. You do not owe it to the owner. They’re not contingency. They’re not float. Buffers are something that are very specific, owned by the contractor and trades specifically for delays and impacts in the phase.

When Can You Use Buffers in Good Faith for the Owner?

Now can somebody ask me, “What time can you use them in good faith for the owner?” Absolutely. You know, legally in schedules you have to track everything anyway. So if it ever pushes past, then you know you can tell that story. And then you might be ready to submit a time impact analysis and maybe negotiate with the owner if you do need a time extension. But I do think what you need is a really good owner in that situation, good transparency, good conversations. And they know exactly what your contract language is, and exactly what the definitions are. And buffers are protected, so you should be good to go.

Here’s when you might use buffers for the owner. If the owner makes a change that delays the train in that phase, you can use buffers to absorb it. That’s what they’re for to cover the risks of that train in that phase. Owner changes are a risk. If you have a really good owner and good transparency, you might negotiate using some buffers for owner benefit in collaborative negotiation. But that’s a gift, not an obligation. You’re choosing to share, not required to share. And if you push past your buffers and need a time extension, you show the owner through a time impact analysis: “We had 26 days of buffers. We used them all for these delays. Now we need a time extension.” That’s transparent and ethical.

But the key is: you’re not required to give up buffers just because the contract says “shared float.” Buffers are not float. They’re specific to the phase’s risks. You own them. If your project needs superintendent coaching, project support, or leadership development, Elevate Construction can help your field teams stabilize, schedule, and flow.

A Challenge for Contractors

Here’s what I want you to do this week. If you’re using Takt planning and you’ve gained buffers by optimizing your zoning strategy, know this: you own those buffers. The contract language about “shared float” does not apply to buffers. Buffers are specific to the phase’s risks. They belong to you and the trades.

And if an owner asks, “Why can’t I use those 26 days?” explain: “Those aren’t float. Those are buffers. They’re specific to this phase’s risks. They cover delays, weather, inspections, material issues. They protect the train. They’re owned by us and the trades because we own the risks of this phase.” That’s ethical. That’s legal. That’s per the definition. You should feel good about it.

As we say at Elevate, buffers are not shared float. They’re specific to a phase’s risks, owned by contractor and trades. Contract language doesn’t apply to buffers. You own them.

On we go.

Frequently Asked Questions

What’s the difference between buffers and float?

Float is general schedule contingency shared between owner and contractor. Buffers are specific time cushions for a specific phase’s risks, owned by contractor and trades. They’re different things.

Does “shared float” contract language apply to buffers?

No. The contract language about shared float applies to float, not buffers. Buffers are not float. They’re specific to a phase’s risks. Contract language doesn’t apply.

Who owns the buffers in a Takt plan?

The contractor and trade partners own the buffers because they own the risks of that train in that phase. The owner doesn’t own those risks, so they don’t own the buffers.

Can an owner take buffers you gained by optimizing?

No. If you go from 95 days to 69 days by optimizing your zoning strategy, those 26 days are buffers. They’re specific to the phase’s risks. The owner can’t take them.

When can you use buffers for the owner?

When the owner makes changes that impact the phase, buffers can absorb them. Or in collaborative negotiation with a good owner, you might choose to share. But that’s a gift, not an obligation.