What timber thickness for floor?

eamon11

Hello Folks,

I am renovating an old bungalow and will be putting in floor joists on the ground floor. The height I need is 4" but what thickness is best and what distance centers? They will be laid on a solid concrete floor.

Its the old style high ceiling and I will be putting in a lowered ceiling at 8' foot height. The ceiling joists will be attached to the external walls. Again, whats the best width and thickness to use? In one section of the attic I will be making storage space as there is enough head height, so the joists there need to support this.

Many Thanks,

eamon

BryanF

eamon11 wrote: »

Its the old style high ceiling and I will be putting in a lowered ceiling at 8' foot height. The ceiling joists will be attached to the external walls. Again, whats the best width and thickness to use? In one section of the attic I will be making storage space as there is enough head height, so the joists there need to support this.

Many Thanks,

eamon

Eamon we cant comment on structural matters - seek professional indemnified advise from a structural engineer

eamon11

we are talking about joists on a concrete floor, not a building structure!!

"seek professional indemnified advise from a structural engineer"

you are on serious overkill here and are making a simple issue out to be something extraordinary.

Gumbo

eamon11 wrote: »

Hello Folks,

I am renovating an old bungalow and will be putting in floor joists on the ground floor. The height I need is 4" but what thickness is best and what distance centers? They will be laid on a solid concrete floor.

Its the old style high ceiling and I will be putting in a lowered ceiling at 8' foot height. The ceiling joists will be attached to the external walls. Again, whats the best width and thickness to use? In one section of the attic I will be making storage space as there is enough head height, so the joists there need to support this.

Many Thanks,

eamon

eamon11 wrote: »

we are talking about joists on a concrete floor, not a building structure!!

"seek professional indemnified advise from a structural engineer"

you are on serious overkill here and are making a simple issue out to be something extraordinary.

It is a structural issue. You are talking about designing a floor to take the dead load and live load of everyday living plus the increased loading of attic storage.

You either get it designed properly or take a chance. Your choice.

baby fish

<snip>

Penn

eamon11 wrote: »

we are talking about joists on a concrete floor, not a building structure!!

"seek professional indemnified advise from a structural engineer"

you are on serious overkill here and are making a simple issue out to be something extraordinary.

It's a simple issue until you take structural advice from someone on this forum and it turns out to be wrong. Boards doesn't allow structural, medical, or legal advice. You need to engage with a competent professional.

Thread locked.