Price Escalation Clause Wording for Subcontractor Proposals, With Examples

A price escalation clause lets a subcontractor adjust a fixed price when named materials move past an agreed threshold, measured against a published index. Without one, a lump-sum sub carries all of the material risk between bid day and delivery. With a vague one, the sub carries it anyway, because nobody can agree on what the clause means.

Below is how the clause is built, the parts that make it enforceable, and sample wording you can adapt.

Why subcontractors need an escalation clause in 2026

Steel, aluminum and copper still carry Section 232 tariffs of 50% on most covered articles and 25% on many derivatives. The Section 122 surcharge expired on July 24, 2026 and was replaced the same day by Section 301 duties on imports from 60 trading partners. Each of those changes moved prices on material that was already in somebody's bid.

A sub who bids a job in October and buys conduit in March is betting on prices five months out. An escalation clause turns that bet into a shared, measurable term. AGC has pointed contractors to the ConsensusDocs 200.1 Material Price Escalation Amendment for exactly this reason. ConsensusDocs is the only standard-form publisher with a dedicated escalation document.

What should a price escalation clause include?

1. A named list of materials. "Materials" is too broad. Name them: rebar, structural steel shapes, copper building wire, EMT conduit, aluminum storefront framing. Only list what moves the price of your scope.

2. A baseline price and date for each. The price in your bid, and the date you priced it. Attach the supplier quote if you have one.

3. An objective index. A published index both sides can look up, such as a BLS Producer Price Index series for the material. Supplier invoices alone invite a fight about whether you shopped hard enough.

4. A threshold. Small moves stay with you. A common structure is that the price adjusts only for the part of the change beyond 5% of baseline. This makes the clause much easier for a GC to accept.

5. Escalation and de-escalation. If the price can only go up, expect a no. If it can go down too, the owner has a reason to sign. The ConsensusDocs 200.1 works both ways.

6. A notice and documentation rule. How many days you have to give notice, what you have to submit, and when the adjustment is billed.

Some owners also want a cap. If you must accept one, push for a cap on the total adjustment rather than a cap on the percentage, and make sure the cap moves with change orders.

Sample wording for a subcontract proposal

Adapt the materials, index and numbers to your trade and your job:

Material Price Adjustment. This proposal is based on the material prices listed in Schedule A, current as of [bid date]. If the price of any listed material, measured by the index stated for it in Schedule A, changes by more than 5% between [bid date] and the date the material is purchased, the Subcontract Price will be adjusted by the amount of the change beyond 5%, applied to the quantity of that material installed. Adjustments apply to increases and decreases. Subcontractor will give written notice within 10 days of purchase, with the index values used and the supplier invoice. Approved adjustments will be added to or deducted from the next payment application by change order.

And a short Schedule A:

• Item: Copper building wire, THHN. Quantity basis: per takeoff, in pounds of copper. Baseline: [supplier quote, $/lb, date]. Index: [BLS PPI series name and ID].
• Item: Rebar, Grade 60. Quantity basis: tons per takeoff. Baseline: [quote, $/ton, date]. Index: [series].

Notice the quantity basis. The clause only works if you can show how much of each material is in the job. That comes from your takeoff. If your takeoff lumps everything into one line, you cannot prove the adjustment. A material takeoff broken out by size and type gives you that quantity basis.

To see what the clause is worth on a specific bid, enter the quantities in our tariff and material escalation calculator. It turns steel, aluminum, copper and lumber into a dollar exposure and gives sample clause wording.

Clauses that fail

• "Prices subject to change." Most GCs strike it, and if they do not, it reads like you never gave a firm price.
• "Valid for 30 days." This only protects you until you sign. It does nothing for material bought months later.
• Escalation tied to "supplier invoices" with no index. Invites an argument about whether you could have bought cheaper.
• No de-escalation. One-way clauses get rejected or quietly deleted in the subcontract.

Where to put it

Put the clause in your proposal, list it again in your qualifications, and check that it survives into the subcontract. Many subs win the clause in the proposal and lose it when the GC's standard subcontract says its terms override everything attached. Ask for the clause to be listed as an exhibit to the subcontract by name.

This is general information, not legal advice. Have your attorney review the final wording before you use it on a job.