DeckMate

Plan deck materials without spreadsheets or guesswork. DeckMate turns your deck dimensions and chosen materials into a clear estimate for deck area, board rows, stock board count, total linear decking, joists and screws.

Choose metric or imperial units, enter board size and gap, set joist spacing, add a waste allowance, and choose screws per board-to-joist fixing. Results update instantly and remain easy to scan on site or at the supplier.

DeckMate works fully offline. There are no ads, accounts, analytics or network requests. A persistent light or dark theme keeps the interface comfortable in the workshop or outdoors.

Estimates support early material planning only. Confirm spans, structural design, fasteners and local building-code requirements with qualified professionals and product suppliers.

Feature list

- Deck area, board rows and stock-board count
- Linear decking including waste allowance
- Joist and estimated screw counts
- Metric and imperial input with exact conversions
- Validated fields, instant results and one-tap reset
- Persistent light/dark theme
- Fully offline and private

Privacy and Data safety

- Data collected: None
- Data shared: None
- Data transmitted off device: None
- Tracking: None
- Ads, analytics, accounts: None
- Sensitive permissions: None
- Local storage: Theme preference only
- Contact form: Offline preview; nothing is sent or stored
- Data deletion request: Not applicable because no user data is collected
- Encryption in transit: Not applicable because no data is transmitted