Deck Estimate Calculator

1. Build your deck

Every change updates the total on the right (or below on mobile).

Project type * New build — full structure. Includes limited lifetime workmanship warranty. Redeck — remove old surface & install new decking (existing structure stays).

Deck area (sq ft) * Labor adjusts with size; materials stay fixed rates.

Railing (linear ft) Include deck edges + stair railing LF

Number of steps Stair structure mats update live (2×12 bases + stringers + optional footings). Tread surface = deck sq ft. Rail = railing LF.

Stair options

Structure: PT 2×12 tread bases, color-matched risers (same brand/line as decking — PT 1×10 ripped, or composite ~7¼″), stringers, hardware (+20% markup). Riser $/LF is prorated from real decking board cost by line. Extra footings for long runs / landings. Tread face stays in deck sq ft; rail in railing LF.

Stair width

3′ 4′ (typical) 5′ 6′

Extra stair footings (16″ composite pad package)

None — short run / tight to deck +1 footing — long run or landing +2 footings — landing / freestanding

How many deck platforms / levels?

Affects framing labor only. Stairs are separate. Fewer levels can free budget for better decking.

1 platform — single level Framing labor · +0% 2 platforms — two levels / tiers Framing labor +25% 3 or more platforms Framing labor +50%

Deck shape

A simple rectangle often costs less in labor — savings you can put toward upgraded materials.

Simple rectangle — square corners only Framing labor · +0% Angles or complex shape — 45° cuts, diagonals, odd angles Framing labor +20%

2. Materials (optional)

Pick decking and railing to include materials in the live total. Skip for a labor-only planning number (board install is finalized when decking is chosen on site).

Decking type

Railing samples

Posts + rail in the rate. Use total LF including stairs. “No railing materials” = labor only or you supply materials.

3. Lock in & request on-site review

Happy with the number? Send it over — we’ll verify scope on site and have you sign the estimate.

Scope of work summary

Full line-item dollars are in the live total. Site visit confirms layout, soil, and attachment details.

Full name *

Email *

Phone *

City / neighborhood

Preferred visit window Or book a time online (Monday–Sunday, 9:00 AM–5:00 PM Eastern).

Anything else we should know?

I want to lock in this estimate total and schedule a site visit to verify scope and sign. I understand final work may adjust if site conditions differ.

Submissions go to request@straightstudllc.com. See our Privacy Policy.