Raised Floor Cost Calculator UK Estimate installed raised access floor costs for UK office, data, and commercial fit-out projects with a detailed cost breakdown and visual chart. Floor Area (m²) Raised Floor System Type Steel Encapsulated PanelCalcium Sulphate CoreAluminium Heavy…
Rainwater Runoff Calculation UK Estimate runoff volume, peak flow, and surface contributions using UK-style drainage assumptions. Calculator Inputs Roof area (m²) Roof runoff coefficient Pitched tile (0.80)Slate or metal (0.90)Flat membrane (0.95) Driveway area (m²) Driveway runoff coefficient Permeable block…
Rainwater Pipe Size Calculation UK Estimate required downpipe diameter using roof area, rainfall intensity, runoff coefficient, design velocity, and safety factor based on UK drainage design practice. Effective Roof Area (m²) UK Rainfall Region (baseline intensity) South East / London…
Rainwater Harvesting Calculator UK Estimate how much rainwater your roof can collect each year, how much mains water you could replace, and what your potential annual savings may look like for a UK home. Roof catchment area (m²) UK rainfall…
Rainwater Gutter Calculator UK Estimate annual rainwater collection, peak gutter flow, recommended gutter profile, required downpipes, and potential annual water bill savings for UK properties. Roof length (m) Roof width (m) Roof pitch factor Flat or low pitch (x1.00)Typical domestic…
Rainwater Downpipe Size Calculator UK Estimate UK downpipe diameter, flow rate, and minimum number of outlets using roof area, rainfall intensity, runoff factor, and safety margin. Effective roof area (m²) Design rainfall intensity (mm/hr) Low exposure (50 mm/hr)Typical UK design…
Rainwater Downpipe Calculator UK Estimate design runoff, recommended number of downpipes, and capacity margin for UK rainfall conditions. Roof length (m) Roof width (m) Roof pitch factor Flat or very low pitch (factor 1.00)Typical pitched roof (factor 1.10)Steep pitch (factor…
Rainwater Collection Calculator UK Estimate annual harvest, household non-potable demand coverage, and a practical storage recommendation for a UK property. Roof catchment area (m²) UK rainfall region London and South EastMidlandsSouth West EnglandNorth West EnglandWest ScotlandEast ScotlandWalesNorthern Ireland Annual rainfall…
Rainwater Calculator UK Estimate annual rainwater harvesting yield, household non-potable demand, potential bill savings, and practical tank sizing. Roof catchment area (m²) Use your plan area for connected roof surfaces. UK region rainfall profile England average (831 mm/year)Wales average (1480…
Rainfall Intensity Calculation UK Estimate observed and design rainfall intensity (mm/hr), then derive peak runoff using a practical UK workflow. Rainfall depth (mm) Storm duration Duration unit HoursMinutes UK region factor England (baseline)Wales (higher typical intensity)Scotland West / HighlandsScotland EastNorthern…