01Your info
01Deck size
192 sqft
· perimeter 56 LF
· guard rail required
02Tier
Budget · PT pine$28/sqft
4×4 PT posts buried 36" with concrete collar (cantilevered framing). 5/4×6 PT decking. 2×4 wood rail with 2×2 balusters. Built to 2018 IRC.
Mid · Trex Enhance / Premium PT$42/sqft
6×6 PT posts on 24" Sonotube concrete piers + ABU66 bases. 2×10 joists @16" OC. Trex Enhance Basics composite or premium PT decking. Aluminum balusters with composite top rail.
Luxury · Trex Transcend / TimberTech AZEK$58/sqft
6×6 PT posts on Sonotube or helical piers. 2×10 joists @12" OC for premium feel. Hidden fasteners. Choice of Trex Transcend or TimberTech AZEK PVC. Premium railing (cable, glass, or aluminum-with-composite).
03Decking material
90° standard. Composite spec applies.
04Framing & footings
Unchecked = free-standing deck (extra beam + posts on the house side).
Budget construction: 4+ buried 4×4 posts ARE the structural support — no doubled-2×10 beam at the outer edge. Auto-enables for post-in-ground footing.
05Add-ons
Stairs
$250 per step retail · 3' wide standard
steps
$1,000
Railing
Auto-perimeter LF · type = aluminum
$0
Pergola / cover
$25/sqft of cover footprint
sqft
$0
LED lighting
Post-cap or stair-riser fixtures · $40 each
fixtures
$0
Skirting (lattice or composite)
$15/LF · auto-perimeter
$0
Old deck removal
$5/sqft · auto-matched to new deck size
$0
ADA wheelchair ramp
Built to ADA Standards 405 — 1:12 max slope, 36" clear width, handrails both sides
06Code check (2018 IRC · SC)
⚒Cost breakdown (cost-up)
07Bill of materials
08Sales markup
20%
Slide to override. Customer mode is locked at 20%.
Ready to lock in your real quote?
📞 CALL (803) 855-1001
Or fill in your details above and tap Request Site Visit.
⚙Pricing settings (cost-up)
Edits save automatically to this device. Retail = (material + labor) ÷ (1 − margin). Recalibrate after 2–3 sold decks.
Per-tier coefficients
Mat $/sqft = material cost of the deck surface (decking + framing + footings + ledger + fasteners).
Labor MH/sqft = man-hours per sqft for the body.
Margin = target before sales premium.
Budget · PT pine
Mid · Trex Enhance / Premium PT
Luxury · Trex Transcend / TimberTech AZEK
Add-on costs (stair $/step, railing $/LF by type, pergola, lighting, skirting, removal) are set in code defaults — open
index.html ADDON / RAILING tables to edit. Will expose in v2.1 if you need them in the UI.