Mamba
Fish Fanatic
I am in a similar predicament. My house is an old one, built in 1823. I have a 200 Litre 5ft tank, a 160 Litre 3Ft tank, a 120 Litre 3ft tank and a 60 Litre 2 Ft tank so there's quite alot of weight of water up there already.
I'm fixing up the back room and will be putting two 175 litre 4ft tanks and the aforementioned 200 Litre 5ft in the newly done room. My suggestion is to look under the floors to see the size of the Floor joists. Mine are old 6"x2" and not exactly even in terms of spacing and set into a stone and rubble rather than being fixed into the more modern galvanised joist hangers.
If your drawing is correct then I would say it would make more sense to have the tank spreading its weight as evenly as possible over as many floor joists as possible. I will have my three similarly set out in a line as you have pictured. Oh and the floorboards/flooring covering should go opposite to the way in which the floor joists go. So the way to be pretty certain is to see what way your flooring goes.
Next thing to do is measure the total span from wall to wall along the length of the joists. Left to right if your drawing is correct. Also factor in downstairs whether there is a supporting wall wand then measure the spans between the walls.
Building Reg's are pretty stringent I understand in the UK so it should be ok if the house was built according to the Regs but with the measurements you've found you can certainly find out to be certain.
I'm fixing up the back room and will be putting two 175 litre 4ft tanks and the aforementioned 200 Litre 5ft in the newly done room. My suggestion is to look under the floors to see the size of the Floor joists. Mine are old 6"x2" and not exactly even in terms of spacing and set into a stone and rubble rather than being fixed into the more modern galvanised joist hangers.
If your drawing is correct then I would say it would make more sense to have the tank spreading its weight as evenly as possible over as many floor joists as possible. I will have my three similarly set out in a line as you have pictured. Oh and the floorboards/flooring covering should go opposite to the way in which the floor joists go. So the way to be pretty certain is to see what way your flooring goes.
Next thing to do is measure the total span from wall to wall along the length of the joists. Left to right if your drawing is correct. Also factor in downstairs whether there is a supporting wall wand then measure the spans between the walls.
Building Reg's are pretty stringent I understand in the UK so it should be ok if the house was built according to the Regs but with the measurements you've found you can certainly find out to be certain.