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