Garden SurveyorGarden Designer (Whole-Garden Setting Out)
Model the whole garden — draw every area, take levels and falls across the plot, and get garden-wide squaring, cut & fill and muck-away. Add extra areas for paths, lawns and beds.
Add return joins a small shape onto this polygon · Add path + area creates a linked pad · Add isolated area creates a separate editable patio part · tap an area button or shape to edit it.
Drainage strip against the house
Suggested: splash strip at ~150 mm deep. Generous DPC clearance and free-draining ground — a decorative splash strip is enough.
≈ 0.41 m³ gravel · 4.4 m² membrane over 5.00 m of wall.
✓ Paving sits 150 mm below the DPC — meets the 150 mm Part C clearance.
Cross-section — updates live with your settings
Where the water goes
Size a soakaway for this run3 advanced inputs hidden. Switch to Advanced to fine-tune.
Order what you need for this job
Porcelain paving — 600×600 mm
Travis Perkins
Need ~17 m²
£28–£55 / m² · ~£476–£935
Check price
SBR slurry primer (porcelain)
Amazon
Need ~1 bottle
£18–£35 / bottle · ~£18–£35
See options
Ad · Some links are sponsored. We may earn a small commission at no extra cost to you. Suppliers are chosen for fit, not commission.
- Unit & pattern
- Porcelain paving — 600 × 600 mm slabs, Stretcher bond
- Area
- 15m²
- Run length
- 5m
- Run width
- 3m
- Squaring check (3-4-5)
- 3–4–5 m (3-4-5)
- Diagonal (equal = square)
- 5.83m
- Full units along length
- 7
- Balanced cut (length ends)
- 365mm
- Full units along width
- 3
- Balanced cut (width ends)
- 585mm
- Fall gradient
- 1:80
- Total fall drop
- 38mm
- Peg & string levels
- Datum (house) 150mm · Peg 1 163mm · Peg 2 175mm · Drain edge 188mm
Quantities pre-filled from your calculation (15.0 m²). Partner links — we may earn a small commission if you buy, at no cost to you.
Essentials for this job
Porcelain paving — 600×600 mm
Travis Perkins
Need ~17 m² for your job
Vitrified porcelain, click-and-collect from local branch.
Check price at Travis PerkinsGuide price: £28–£55 / m²(~£476–£935 total)
Indicative · reviewed May 2026
MOT Type 1 sub-base — bulk bags
Building Materials Nationwide
Need ~4 tonne for your job
Crushed limestone MOT sub-base in 800 kg bulk bags, delivered to kerbside.
Check price at Building Materials NationwideGuide price: £35–£60 / tonne(~£140–£240 total)
Indicative · reviewed May 2026
SBR slurry primer (porcelain)
Amazon
Need ~1 bottle for your job
Essential bonding agent — one bottle covers ~25 m².
See options at AmazonGuide price: £18–£35 / bottle(~£18–£35 total)
Indicative · reviewed May 2026
Brush-in resin jointing compound
Amazon
Need ~3 pack for your job
All-weather two-part resin — 25 kg covers ~6–8 m² at 10 mm.
See options at AmazonGuide price: £35–£70 / pack(~£105–£210 total)
Indicative · reviewed May 2026
- Sharp sand — bulk bagsBuilding Materials Nationwide
Screed/bedding sand for slab beds and block-paving courses.
Pre-filled qty: 2 tonne
Guide price: £55–£85 / tonne(~£110–£170 for your job)
Indicative · reviewed May 2026
- ACO channel drainageDrainage Superstore
Polymer channel drains and gratings for patios and drives.
Guide price: £18–£40 / linear m
Indicative · reviewed May 2026
Quantities include a ~10% waste allowance. Guide prices are indicative UK ranges (materials only, inc. VAT) — always confirm with the supplier before ordering.
Prefer to hire a pro?
Compare quotes from vetted local trades using this exact spec.
Ad · Some links are sponsored. We may earn a small commission at no extra cost to you. Suppliers are chosen for fit, not commission.
This app provides general UK guidance and material estimates only. It is not legal, planning, engineering or building-control advice. Always confirm requirements with your local planning authority, building control, utility providers, manufacturers or qualified professionals.