A well-built composite deck in the Denver metro runs $15,000 to $50,000+ depending on size and height — real money, and most homeowners don't pay it out of a checking account. Home deck financing is how the majority of these projects actually get built, and the routes Colorado homeowners take are fewer and simpler than the term suggests. Here's each one, with its honest trade-offs. One note up front: we build decks, we don't give financial advice — treat this as a map of the options, and talk to your bank or a financial professional about which fits your situation.
The common routes
Home equity line of credit (HELOC). The most common way we see decks funded. You borrow against your home's equity as needed, typically at rates well below personal loans, and Front Range homeowners tend to have substantial equity to work with. The trade-off: your house secures the debt, and variable rates can move on you.
Home equity loan. Same collateral, different shape — a fixed lump sum at a fixed rate with predictable payments. Suits a deck project well, since you know the cost before you borrow. Less flexible than a HELOC if the project scope grows.
Cash-out refinance. Made sense for many when rates were falling; in most 2026 scenarios, replacing a low-rate mortgage to fund a deck is expensive money. Worth running the numbers with a lender before assuming.
Personal / home-improvement loan. Unsecured, fast to arrange, no lien on the house — and priced accordingly, with higher rates and shorter terms than equity products. Reasonable for smaller projects like a re-deck or a pergola addition, where the total is modest and speed matters.
Contractor-arranged financing. Some builders offer financing through third-party lenders. Read the terms the way you'd read any loan — promotional "same-as-cash" periods with steep deferred interest are common in home improvement. A legitimate offer survives comparison with your bank's; if a salesperson uses the monthly payment to hide the total price, that tells you something about the rest of the bid too.
Cash, staged. Plenty of clients simply phase the project: deck this year, cover or outdoor kitchen next. A good design anticipates the later phases — footings and framing placed so the pergola can land on them — which is cheaper than retrofitting and easier than financing the whole vision at once.
(For the record: Haka doesn't offer in-house financing, deliberately — we'd rather compete on the deck than on the loan. The financing page explains why, and what we provide instead: an itemized, fixed quote any lender will accept.)
What each route typically costs in 2026
Rates move, and yours depends on credit, equity, and lender — but the relative order of these products is stable. Typical 2026 ranges:
| Route | Typical APR | Secured by your house? |
|---|---|---|
| HELOC | ~8–10%, variable | Yes |
| Home equity loan | ~8–10%, fixed | Yes |
| Cash-out refinance | Current mortgage rates — on your entire balance | Yes |
| Personal / home-improvement loan | ~9–18%, by credit score | No |
| Contractor-arranged promo | 0% for 12–18 months, then ~25–30% deferred | No |
Two readings of that table. Equity products win on rate because the house backs them — that's also their risk. And the contractor-promo line is only cheap if you retire the full balance inside the promotional window; deferred-interest terms charge the back rate on the original amount from day one if you don't.
The math on a $20,000 deck
A 16×20 composite deck with railing lands in the middle of the $13,000–25,000 installed range, so $20,000 is a realistic number to run. Here's what it looks like monthly:
| How you fund $20,000 | Rate / term | Monthly payment | Total interest |
|---|---|---|---|
| Home equity loan | 9% fixed, 10 yrs | ~$253 | ~$10,400 |
| HELOC, repayment phase | 8–10% variable, 10 yrs | ~$243–264 | ~$9,100–11,700 |
| Personal loan | 12% fixed, 5 yrs | ~$445 | ~$6,700 |
The counterintuitive line is the personal loan: higher rate, less total interest, because the five-year term does more work than the three extra points cost. That's the general lesson — term length moves total cost more than rate does at these amounts. A HELOC's draw period is interest-only (~$150/month on $20,000 at 9%), which feels cheap until you notice the principal hasn't moved. Run your own numbers before deciding; these are illustrations, not quotes.
Financing a deck, step by step
However you fund it, the sequence that keeps a deck financing decision clean looks like this:
- Get the real number first. A lender quotes against a project cost, so start with a fixed, itemized bid — not a per-square-foot guess.
- Check your equity. Most Front Range homeowners who've owned more than a few years have enough equity for a HELOC or home equity loan; your current mortgage statement and a rough valuation tell you quickly.
- Price two offers. One equity product from your bank or credit union, one unsecured loan — comparing exactly two beats comparing zero or ten.
- Match the term to the deck. Borrowing for fifteen years against a surface warrantied for twenty-five is sane; financing a builder-grade deck past its lifespan is not.
- Keep the contingency in cash. Finance the quote, hold ~10% back in savings for the change you'll inevitably want mid-build.
Does a deck justify borrowing?
Two honest points. First, decks hold resale value well — remodeling-industry cost-vs-value studies consistently put deck additions among the stronger outdoor returns, and in Colorado's outdoor-living market a quality composite deck reads as a straight asset. Second, and less obvious: the cheap deck is often the expensive one. A builder-grade deck that needs replacement in twelve years costs more per year of service than an engineered composite build that runs thirty. If borrowing is the difference between building once and building twice, the math can genuinely favor borrowing — run it for your own numbers.
Budget first, then finance
Whatever route you take to financing a deck, start with a real number instead of a guess: our deck cost calculator gives you a 2026 planning range in thirty seconds, and a free on-site consultation turns it into a firm quote you can actually take to a lender.
