3D Deck Designer — Build Yours Live
Design your deck step by step and watch it update in real-time 3D — footprint, size, decking material and color, railing, stairs, and lighting. Get an instant installed-cost range calibrated to 2026 Upstate South Carolina pricing, then email yourself the design.
Step 1 of 5
Choose your footprint
Pick the overall shape of your deck — you can fine-tune the size next.
Usable area: 320 sq ft
Your design so far
- Footprint
- Rectangle · 20 ft × 16 ft (320 sq ft)
- Height
- Standard (3–5 ft)
- Decking
- Composite (Trex / TimberTech) — Transcend — Spiced Rum
- Boards / fascia
- Horizontal
- Railing
- Powder-coated aluminum
- Extras
- Stairs (front) · Lighting
Estimated installed cost
Mid-point: $31,500 for a 320 sq ft composite (trex / timbertech) deck.
Materials & build summary
Common questions
Is the 3D deck designer free to use?
Yes — it's completely free with no signup. Build your deck in 3D, see a live installed-cost range, and only share your contact info if you want a copy of your design emailed to you and a free on-site quote.
How accurate is the cost estimate?
The installed-cost range uses the same 2026 Upstate South Carolina pricing as our deck cost estimator — design, permits, framing, decking, railing, and labor. It's a planning ballpark; final pricing depends on site access, footing requirements, and finish details.
Is the materials list a real structural plan?
No. The board count, joists, beams, posts and footings shown are a planning estimate based on typical local framing practice. They are not engineered drawings or a permit-ready material list — your final plan is prepared and stamped during design.
Do you build the decks you design here?
Yes — Four Seasons Building & Remodeling is a licensed SC general contractor (RB52147) building custom decks, pergolas, and outdoor living spaces across Greenville, Spartanburg, Anderson, and the broader Upstate.
Why design it with us?
- Licensed SC general contractor (RB52147) — we build what you design here.
- Your design goes straight to a project manager, not a call center.
- Free, no-obligation on-site consultation to firm up your quote.
- Pricing calibrated to 2026 Upstate South Carolina rates.