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For deck builders

Deck Estimating Software for Deck Builders

A deck bid has footings, framing, decking, railings and stairs, and every one has its own count. Trades HQ keeps it all on one estimate and shows whether the job made money.

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Why deck jobs are hard to price

How Trades HQ helps deck builders

A deck estimate, step by step

  1. Measure the deck size and decide joist direction and spacing.
  2. Count joists: (span ÷ spacing) + 1.
  3. Count decking boards: deck depth ÷ (board width + gap), rounded up.
  4. Add beams, posts, footings, hardware and fasteners.
  5. Add railings and stairs as their own lines.
  6. Add permit and inspections, then apply your overhead and profit.

Example (illustrative): a 12 ft deep × 16 ft wide deck, joists 16 in apart, 5.5 in boards with a 1/8 in gap.

StepMathResult
Joists across 16 ft(16 × 12 ÷ 16) + 113 joists
Board rows across 12 ft144 ÷ 5.62525.6, so 26 boards

Pricing tip: Price railings and stairs as their own lines; they're often the most labor per foot. And remember that markup and margin aren't the same number: a 20% margin needs a 25% markup. The Estimating Basics guide walks through the math, and the free markup and margin calculator does it for you.

See it in Trades HQ

A sample kitchen remodel estimate in Trades HQ with material and labor on each line
A sample estimate in Trades HQ. Each line has its own material and labor cost, and the Bid Summary adds your overhead and profit. Sample numbers.

Questions deck builders ask

How many joists does a deck need?

Divide the width the joists are spread across, in inches, by the joist spacing, then add one. For example, a 16 ft width at 16 inches apart needs 13 joists. Follow your local code for spacing and spans.

Do decks need a permit?

Many places require a permit and inspections for decks. Check with your local building department and include the permit on your estimate.

Can I use Trades HQ on my phone?

Yes. Trades HQ runs in your phone’s web browser, and you can add it to your home screen like an app, so you can build an estimate or send an invoice from the truck.

Is there a free trial?

Yes. Every plan starts with a 14-day free trial, and you don’t need a credit card to start. Plans start at $75 a month, and you can cancel anytime.

Examples on this page use illustrative numbers only. Use your own costs, rates and local requirements. This page is general information, not legal, tax, or financial advice.