Price to Build a Deck: Why the Cheapest Quote Can Cost You More | OnDeck

So, what's the price to build a deck?

One of the most common questions homeowners ask when planning a deck is:

“Why is there such a big difference between contractor prices?”

Recently, a homeowner called to thank me for my time and transparency. They explained they were moving forward with another contractor who came in about 20% lower than our proposal.

That happens — and it’s part of the business. I’m not upset about losing a job. But what stood out was this:they shared the competitor’s quote with me.

When a Deck Quote Looks Too Good to Be True or Price to Build a Deck

After reviewing the estimate, several red flags appeared immediately:

• Incorrect measurements

• Incorrect square-foot calculations

• Missing scope details

I didn’t criticize the contractor or try to scare the homeowner. That’s never been how we operate. Instead, I gave simple, professional advice:

✔ Get everything in writing

✔ Ask for proof of insurance

✔ Confirm warranty details

Then I thanked them for the opportunity.

Why Underpriced Deck Projects Often Go Wrong

Here’s the honest part — and my confession.

I’ve been that contractor before.

Early in my career, I underestimated jobs. Sometimes I missed details. Sometimes the risk wasn’t fully accounted for. Estimating is one of the hardest parts of construction, and even experienced professionals can make mistakes.

The difference between a professional contractor and a risky one is how those mistakes are handled.

Experienced contractors:

• Accurately estimate labor, materials, and risk

• Include contingency for unforeseen conditions

• Finish the job even if something was missed

Inexperienced or underpriced contractors may:

• Push surprise change orders

• Cut corners to recover losses

• Walk away from unfinished work

That’s when “cheap” becomes very expensive.

cost to build a deck

What Homeowners Should Look for Beyond Price

If you receive multiple deck quotes and one is significantly lower than the rest, pause before signing.

Ask yourself:

• Are all measurements and materials clearly listed?

• Is engineering or permitting included if required?

• Is the contractor insured and licensed?

• Is there a written warranty?

• Who is responsible if something is missed?

Price alone doesn’t tell the full story — planning, experience, and accountability do.

The Real Cost of Building a Deck

A deck isn’t just lumber and fasteners. It’s:

• Structural engineering

• Code compliance

• Permits

• Proper footings and framing

• Long-term durability

When done right, a deck adds value, safety, and enjoyment for years. When done wrong, it becomes a source of stress, delays, and unexpected costs.

Final Advice Before Hiring a Deck Contractor

If one quote is much lower than the rest, it doesn’t automatically mean someone is giving you a deal. More often, it means something was missed.

At that point, you’re not just hiring a contractor — you’re betting on how they’ll handle a problem when it appears.

Choose wisely, ask questions, and prioritize professionalism over price alone.

A properly planned deck should be built once and built right. Start planning on yours https://www.go-ondeck.com/request-my-free-quote