The space requirements depend on the tank type, and height. Below is an approximate guide: IFB under 2m high – 500mm on all 4 sides and 750mm* above IFB 2m > 3m high – 800mm on all 4 sides and 750mm* above IFB 3.5m & 4m high – 1000mm on all 4 sides and 750mm* above EFB under 2m high- 500mm on all 4 sides, 600mm underneath and 750mm* above EFB over 2m > 3m high- 800mm on all 4 sides, 600mm underneath and 750mm* above EFB 3.5m & 4m high – 1000mm on all 4 sides, 600mm underneath and 750mm* above TIF – 50mm on 3 sides, 500mm on 1 side and 750mm* above *1200mm when fitted with a Guardrail For more information on the sectional tank clearance and installation guidelines, visit our page: Water Tank Installation Guidelines. Please note the clearance above can be reduced to a minimum of 500mm with the inclusion of a ‘lift off kit’. The clearance around tanks over 2m can be reduced depending on site conditions. Please contact our technical sales team for more information.