Complete deck estimate
Calculate deck area, board rows, stock-board count and total linear decking with your chosen waste allowance.
Coming soon to Android
Plan every board.
DeckMate turns your deck dimensions and chosen materials into a clear estimate for area, board rows, stock boards, linear decking, joists and screws.
Android release in preparation
DeckMateLive estimate
MetricImperial
Deck length6 m
Deck width4 m
Deck area24 m²
Board rows28
Stock boards62
Estimated screws986
Material planning, made straightforward.
Enter the build details you already know. DeckMate validates the numbers and updates the estimate instantly.
Framing and fixings
Estimate joists from on-centre spacing and screws from fixings per board-to-joist intersection.
Metric or imperial
Work in metres and millimetres or feet and inches with mathematically exact conversions.
Helpful validation
Reusable validated number fields, clear result cards and a one-tap reset keep planning focused.
Comfortable theme
Choose light or dark mode. That preference stays locally on your device.
Private by design
No ads, accounts, analytics, tracking or network service. Your calculator entries never leave the app.
Privacy Policy
Effective September 1, 2026
DeckMate does not collect, track, sell, share or transmit your personal data.
Overview
DeckMate is an offline deck-material calculator. It is designed to perform calculations on your device without sending information to a developer, company, advertising network or analytics provider.
Information you enter
Deck dimensions, board dimensions, board gap, joist spacing, waste percentage and screws-per-fixing values are used only to calculate results on your device. These calculator entries and results are not transmitted to a server and are not retained by DeckMate after the app session.
The only app preference that may be stored is your light or dark theme choice. It remains locally on your device and is not linked to an identity.
Offline contact preview
The in-app Contact page is a local preview tool. Names or messages typed there are not sent anywhere and are not stored by DeckMate. Closing or leaving that screen discards the preview.
Children's privacy
DeckMate is a general-purpose material-planning tool and is not designed to request personal information from anyone, including children. The app has no accounts, social features, advertising or personal-data collection. A parent or guardian should supervise a child's use of construction-planning tools and any real-world building activity.
Security and retention
No user information is held on DeckMate servers because DeckMate operates without a server. The local theme preference remains subject to the security and backup settings of your Android device. The app excludes its preference from its own Android backup configuration.
Data deletion
There is no server-held user data to request or delete. You can remove the local theme preference by clearing DeckMate's app storage in Android settings or by uninstalling the app. Calculator entries and contact previews are not stored by DeckMate.
Changes to this policy
If DeckMate's data practices change in a future release, this policy will be updated with a new effective date before those practices take effect. The current app does not collect, track, share or transmit user data.
Privacy questions
This coming-soon page does not include a contact form or collect messages. Until an official support channel is published with the app release, please consult the Privacy Policy included inside DeckMate.