Construction contractor reviewing material cost estimates and tariff impact on job profitability

Tariff Costs in 2026: What Construction Contractors Need to Know

March 26, 2026

If you are a contractor worried about tariffs in 2026, here is the quick answer: tariffs are driving up the cost of lumber, steel, drywall, and most hardware by 10-25% depending on the material. You cannot avoid them, but you can protect your margin by adjusting how you bid, write contracts, and manage job timelines. This is not theory—this is already hitting job sites right now.

Why Should Contractors Care About Tariffs?

Tariffs are taxes on imported goods. When the U.S. government slaps a 20% tariff on Chinese steel or Canadian lumber, your supplier does not eat that cost. They pass it straight to you. And unless you wrote your contract the right way, you are eating it instead of passing it to your client.

Here is what that looks like in real dollars. Say you are a framing contractor running three jobs at $180K each. Your lumber package is typically $45K per job. A 15% tariff increase means you are now paying $51,750 per job—an extra $6,750 you did not budget for. Multiply that across three jobs and you just lost $20,250 in profit you thought you had locked in.

Most contractors find out about these costs when the supplier invoice shows up, not when they are bidding the job. By then, the contract is signed and you are stuck. That is why this matters. Tariffs are not some political talking point—they are a line item that is quietly killing your margin.

Which Materials Are Getting Hit the Hardest?

Not all materials are created equal when it comes to tariff exposure. Here is where the pain is concentrated in 2026:

  • Lumber: Canadian softwood lumber tariffs are sitting around 15-20%. If you are framing, building decks, or doing any rough carpentry, this is your biggest exposure.
  • Steel and aluminum: Structural steel, rebar, roofing panels, and HVAC components are seeing 10-25% increases depending on country of origin.
  • Drywall: A lot of drywall comes from Canada. Tariffs are pushing costs up 8-12%.
  • Electrical components: Breaker panels, conduit, wire—much of it comes from China or Mexico. Expect 10-18% increases.
  • Tools and hardware: Fasteners, hand tools, power tools—if it says 'Made in China,' it is probably more expensive now.

If you are a remodeler doing kitchen and bath work, you are getting hit on cabinets (if imported), tile, fixtures, and appliances. If you are a commercial GC, steel and drywall are your biggest exposures. Know where your materials come from. Ask your suppliers. Most contractors have no idea until the price goes up.

How Do I Protect My Profit Margin When Material Costs Keep Rising?

You have three levers to pull: how you bid, how you write contracts, and how you time your material purchases. Let us go through each one with specific actions you can take Monday morning.

Lever #1: Build a Tariff Buffer Into Your Bids

Do not bid jobs at cost. That is how you lose money when prices move. Add a 10-15% material cost buffer on any job that will not start for 30+ days. Yes, this might make your bid higher. But you know what is worse? Winning a job and losing $15K because drywall went up 12% between contract signing and delivery.

Here is the math. You are bidding a $220K remodel. Your material cost is $70K. Add a 12% buffer: $70K x 1.12 = $78,400. Build that into your bid. If prices stay flat, great—you just made an extra $8,400. If prices go up, you are covered. Either way, you are not bleeding cash because you guessed wrong.

Some contractors worry this will price them out of jobs. Maybe. But would you rather lose a bid or lose $10K on a job you won? You are not in business to be the cheapest—you are in business to make money. If a client is only choosing you because you are $8K cheaper, they are going to be a nightmare when something goes wrong anyway.

Lever #2: Add an Escalation Clause to Every Contract

An escalation clause is a sentence in your contract that says if material costs go up more than X% between signing and delivery, the client pays the difference. This is standard in commercial construction. It should be standard in residential and specialty trades too.

Here is sample language you can steal: 'Material costs are based on pricing as of [contract date]. If material costs increase by more than 5% due to tariffs, supply chain disruptions, or market conditions, the contract price will be adjusted to reflect actual costs with documentation provided.'

Is this going to start a negotiation? Maybe. But that is better than eating a $12K cost overrun because you were too polite to put it in writing. Most clients will understand if you explain it upfront. If they push back hard, that is a red flag about how they will act when other issues come up. For more on protecting your cash flow when costs shift, check out our guide on construction cash flow management.

Lever #3: Lock in Material Pricing Early (When You Can)

If you have a job starting in 60-90 days and you know your material list, call your supplier and ask if they will lock in pricing for a deposit. Some will, some will not. But it is worth the ask. A 10% deposit on a $50K material package ($5K) might save you $6K if tariffs jump another 12% before delivery.

This only works if your cash flow can handle it. If you are already floating payroll and waiting on a $40K draw, do not tie up cash on materials you cannot use yet. But if you have the liquidity, locking in pricing is one of the smartest hedges you can make in a tariff-heavy environment. If you are not sure where your cash actually is, that is a job costing problem, not a tariff problem.

What Should I Do Right Now to Prepare?

Stop guessing and start tracking. Here is your Monday morning checklist:

  • Call your top three suppliers. Ask them which products have had price increases in the last 90 days and which ones are expected to go up in the next 60 days. Write it down. This is your early warning system.
  • Pull your last three completed jobs. Look at your material costs as a percentage of the total contract price. If materials were 30% of the job and they are now 35% because of price increases, your margin just got crushed. Run the math.
  • Review your contract template. Does it have an escalation clause? If not, add one today. Do not wait until the next job to fix this.
  • Update your estimating spreadsheet. If you are still using last year's material prices, you are bidding with bad data. Go through your standard material list and update every line item with current pricing plus a 10% buffer.
  • Look at your job pipeline. Any jobs scheduled to start more than 60 days out? Those are your highest risk for tariff cost overruns. Revisit those bids or have a conversation with the client about pricing adjustments before you order materials.

If you do not have a system to track costs by job in real time, you are flying blind. You will not know you have a tariff problem until the job is over and the profit is gone. That is fixable, but it requires actual job costing, not a gut feeling.

How Do I Know If a Price Increase Is Really a Tariff or Just My Supplier Gouging Me?

Good question. Some suppliers are absolutely using tariffs as cover to raise prices across the board, even on domestic products that are not affected. Here is how you call them on it:

Ask for documentation. If your supplier says drywall is up 15% because of tariffs, ask them to show you the tariff line item on their invoice from the manufacturer. Most legit suppliers will not have a problem with this. If they dodge the question or get defensive, start calling other suppliers.

Check multiple sources. If one supplier says plywood is up 20% and another says 8%, someone is not being straight with you. Get three quotes on big material packages. It takes an extra hour, but it might save you $5K.

Know what is actually imported. A lot of drywall, lumber, and steel is domestic. If your supplier is blaming tariffs on a product made in Georgia, they are lying. Do a quick Google search: 'Is [product name] imported?' You will find the answer in 30 seconds.

What If I Already Signed a Contract and Prices Just Went Up?

You have two options: eat it or renegotiate. Most contractors eat it because they are worried about damaging the relationship. But here is the thing—if you lose $10K on this job, you are going to resent the client, rush the work to stop the bleeding, and probably never work with them again anyway. That is not a relationship worth protecting.

Have the conversation. Be direct. 'We signed this contract 60 days ago based on material pricing at the time. Since then, lumber has gone up 18% because of tariffs. Here is the invoice showing the increase. We are asking to split the difference so we can keep the project moving without taking a loss.' Most reasonable clients will work with you. The unreasonable ones would have been a nightmare anyway.

If they say no, you have a choice: finish the job and take the hit, or walk away and deal with the legal mess. Neither is great. That is why the escalation clause matters. It keeps you out of this situation in the first place.

Are Tariffs Going Away Anytime Soon?

No one knows, and anyone who tells you they do is guessing. Tariffs are political, and politics are unpredictable. What we do know is that they have been in place in some form since 2018, they have gone up and down, and they are not going away in 2026. Plan for them to stick around. If they disappear, great—you will have extra margin. If they do not, you are covered.

The worst thing you can do is wait for certainty. There is no certainty in construction. There is only preparation. Build your systems assuming costs will keep moving, because they will. Tariffs, supply chain issues, labor shortages, fuel costs—something is always going to move. Your job is to build a business that can handle it without losing your shirt.

Final Thought: You Are Not Bad at Business—You Just Need Better Systems

If you read this and realized you have been getting crushed by material cost increases without knowing it, you are not alone. Most contractors do not find out they lost money on a job until months after it is done. That is not because you are bad at business. It is because no one ever taught you how to track costs in real time, write contracts that protect you, or build margin buffers into your bids.

The good news? All of that is fixable. It does not require a finance degree. It requires a system. A way to track costs by job, compare estimates to actuals, and know whether you made money before the bank account is empty. If you do not have that system yet, start building it today. Update your contract template. Add the tariff buffer to your bids. Call your suppliers and get the real numbers. These are not huge changes—they are small fixes that add up to not losing $20K on your next three jobs.

And if you are realizing you need help getting your books and job costing cleaned up so you actually know where you stand, that is what we do. Not because we want to sell you something, but because flying blind is how good contractors go out of business. You deserve to know whether you are making money. If you want to talk through your situation, we are here.

#ConstructionBusiness #ContractorTips #TariffImpact #ConstructionCosts #JobCosting #ContractorFinance

Cory Salisbury is a construction bookkeeping and job costing specialist who helps contractors eliminate financial chaos and run more profitable projects. He builds clean, accurate financial systems focused on job costing, WIP reporting, cash-flow forecasting, AR/AP management, and real-time dashboards—giving builders complete visibility into their numbers. Cory’s expertise helps general contractors, subcontractors, and specialty trades tighten margins, stabilize cash flow, and scale with confidence.

Cory Salisbury

Cory Salisbury is a construction bookkeeping and job costing specialist who helps contractors eliminate financial chaos and run more profitable projects. He builds clean, accurate financial systems focused on job costing, WIP reporting, cash-flow forecasting, AR/AP management, and real-time dashboards—giving builders complete visibility into their numbers. Cory’s expertise helps general contractors, subcontractors, and specialty trades tighten margins, stabilize cash flow, and scale with confidence.

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