DeckMath

8 calculators · IRC 2021 · Free forever

Compare materials

Side-by-side material comparisons covering up-front cost, 25-year total cost of ownership, maintenance burden, lifespan, and aesthetic. Honest tradeoffs based on published manufacturer data and field-tested durability.

Which decking material lasts the longest?

PVC and capped composite decking (Trex Transcend, TimberTech AZEK, Fiberon Paramount) carry 25–50 year manufacturer warranties — the longest of any decking option. Ipe hardwood lasts 40–75 years naturally. Pressure-treated lumber lasts 15–25 years; cedar lasts 15–30 years with regular staining.

8 calculators

Trex vs cedar vs PVC — which is best?

Composite vs PVC Decking Comparison Calculator

Capped composite (Trex/TimberTech composite) vs full PVC (AZEK/Zuri/Wolf). Heat retention, lifespan, weight, recyclability, cost per sqft + 25-yr TCO. 2026 pricing.

Live5K searches/mo

Cedar vs Pressure-Treated Comparison Calculator

Western Red / Eastern White cedar vs pressure-treated SYP/SPF — 25-yr TCO, lifespan, maintenance, decay-resistance, aesthetic comparison. 2026 lumber-yard pricing.

Live10K searches/mo

Trex vs TimberTech Comparison Calculator

Side-by-side: Trex (Enhance/Select/Transcend/Signature) vs TimberTech (EDGE/PRO/AZEK/Advanced PVC). 25-yr TCO, warranty, lifespan, heat, weight, recycled content — 9-dimension scoreboard.

Live12K searches/mo

IPE vs Composite Calculator

Tropical hardwood (IPE / Cumaru / Tigerwood) vs capped composite. Janka hardness, density, FSC certification, 50-yr lifespan, 25-yr TCO with re-oiling schedule. Brand examples + sustainability flag.

Live2K searches/mo

25-Year Deck Cost Calculator

True lifecycle cost across PT / cedar / composite / PVC / IPE on one chart. Year-by-year cost curve, sealing + restain schedule, replacement reveal, recoup at sale. 25-yr TCO ranking.

Live3K searches/mo

Stain vs Sealer Calculator

Decision tool comparing pigmented stain (semi-trans / solid) vs clear sealer (water-based / oil-based). 10-dimension scoreboard, color preference + wood condition aware. 10-yr TCO.

Live4K searches/mo

Resurface vs Rebuild Calculator

Head-to-head resurface vs rebuild — keep framing vs full tear-down. 8 board materials × 4 framing conditions. 25-yr lifecycle cost. Framing-condition-driven recommendation. 2026 retail.

Live3K searches/mo

DIY vs Contractor Deck Cost Calculator

Real cash + effective-cost comparison: DIY (retail materials + tools + permits + mistake budget) vs contractor (trade discount + class-based labor + warranty). 5-step skill slider, opportunity-cost slider, break-even $/hr.

Live6K searches/mo

Frequently asked

About this path

Is composite or wood decking cheaper long-term?
Composite has higher up-front cost ($30–$60/sqft installed vs $14–$25 for pressure-treated) but lower 25-year total cost — no annual staining, fewer board replacements. The 25-Year Cost Calculator shows your specific crossover point.
What's the difference between Trex and TimberTech?
Trex's premium line (Transcend) uses a polyethylene cap; TimberTech AZEK uses pure PVC for higher heat resistance and stain immunity. TimberTech generally offers longer warranties (50-year vs Trex's 25-year limited). Use the Trex vs TimberTech Calculator for a feature-by-feature breakdown.
Is cedar or pressure-treated better for a backyard deck?
Cedar has natural rot and insect resistance with a warmer aesthetic but costs 1.5–2x more than PT lumber and requires sealing every 2–3 years. PT is cheaper, structurally identical, and lasts the same 15–25 years with proper maintenance.
When is Ipe worth the premium over composite?
Ipe ($30–$50/sqft material) outlasts composite in extreme climates (75-year natural life) and never has the plastic look. It costs more up-front than mid-range composite but matches premium PVC over 50 years, and it's the only material that ages to a silver patina without staining.