Paving slabs, sub-base, sand and cement for any UK patio or path job.
About Paving Calculator
Paving Calculator is a tools app developed by Darryl Jackson.
Download Statistics
Paving Calculator has been downloaded 15 times. In the last 30 days, the app was downloaded 14 times.
User Ratings
The app has no ratings yet.
App Information
Paving Calculator is FREE to download. The APK download size is 19.73 MB. The latest version available is 1.0.0. The last update was on May 16, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play 6 weeks ago.
Description
Paving Calculator estimates exactly how many paving slabs you need, plus MOT Type 1 sub-base aggregate, laying-bed sharp sand, and bagged cement for pointing — built for UK landscapers, patio fitters, and serious DIYers.
Enter your patio length and width, pick a UK paving-slab size, set your joint width, sub-base depth and waste percentage, then hit Calculate. The app returns slab count, sub-base tonnage, laying-bed sand tonnage, pointing sand tonnage and cement-bag count, plus a per-line cost breakdown if you supply prices.
KEY FEATURES
• Five standard UK slab presets — 300×300, 450×450, 600×300, 600×600 (the trade default), and 900×600 heavy-duty • MOT Type 1 sub-base aggregate calculation at 2.1 t/m³ (Mainland Aggregates / Smith & Sons range) • Laying-bed sharp sand quantity calculation at 1.6 t/m³ loose density • BS 7533-aligned pointing mortar — 3:1 sharp sand : Portland cement (pavingexpert / pavingshopper UK trade standard) • Pointing depth capped at 25mm (typical UK weather-proofing depth — not the full slab thickness) • Configurable joint width (5, 8, 10, 12, 15mm) and sub-base depth (50-300mm) • Adjustable waste percentage (0-25%) — default 10% for straight layouts, raise to 15% for diagonal/herringbone • Optional cost estimation per material — slabs, MOT, sand, cement • Share results to text, email or messaging apps • Standard sub-base hint: 100mm for patios, 150mm for driveways
CALCULATION ACCURACY
Constants and rules cross-referenced with BS 7533 (UK modular paving), Mainland Aggregates and Smith & Sons Bletchington (MOT Type 1 density), Marshalls and Bradstone supplier catalogues (slab dimensions and thicknesses), and pavingexpert.com / pavingshopper.co.uk (3:1 pointing mortar convention). Each density and ratio constant is cited inline in the source code for auditability.
WHO IT'S FOR
• Landscapers and patio fitters quoting jobs • Homeowners planning a new patio or garden path • DIYers replacing damaged paving runs
Recent changes: Paving slabs, sub-base, sand and cement for any UK patio or path job.
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