Laying a floor in the loft...things I should consider

[mrdogcat]

Hi

I've just bought a new build house and want to lay a floor in the loft so I can store things up there.

Before I do this I was wondering if you could let me know what I should take into consideration first.

I've just started reading up on the internet about laying a floor and the main concern I have is knowing that the joists can take the weight of the wood and eventually the storage items...not to mention my weight!! How do I find this out and what would I need to do to strengthen them?

Also, I have had spotlights fitted. Do I need to cut holes in the floor I am laying to allow heat to escape, is there a different method or is there nothing to worry about in that area?

Any other information would be greatly appreciated.

Thanks,
Steve.

 

[Deluks]

What size are current joists? probably 4x2 in which case you should be ok to proceed taking the following into account.


Before boarding out lay 3x2 crossways over existing joists, lay them wide side down and space them 600mm on centre (or 525mm gap between each one ) This will help spread the weight of loft floor, increase ventilation underneath and mean you won't have to notch into joists for cable runs etc.

get some teracotta flower pots and place over the downlights. These will keep any insulation* from touching the downlights and the hole in the bottom will allow heat to escape.

*You do have insulation don't you?

Fix everything with screws, don't nail anything or your bedroom ceilings could start shedding chunks of plaster.

Best to buy 8'x2' boards for the loft, these are the most economical.

I'm sure the other guys will add to this.

 

[markie]

What size are current joists? probably 4x2 in which case you should be ok to proceed taking the following into account.


Before boarding out lay 3x2 crossways over existing joists, lay them wide side down and space them 600mm on centre (or 525mm gap between each one ) This will help spread the weight of loft floor, increase ventilation underneath and mean you won't have to notch into joists for cable runs etc.

get some teracotta flower pots and place over the downlights. These will keep any insulation* from touching the downlights and the hole in the bottom will allow heat to escape.

*You do have insulation don't you?

Fix everything with screws, don't nail anything or your bedroom ceilings could start shedding chunks of plaster.

Best to buy 8'x2' boards for the loft, these are the most economical.

I'm sure the other guys will add to this.

No, you've done a good job by yourself.

 

[Tozzy]

Good job Deluks.

Best to buy 8'x2' boards for the loft, these are the most economical.

Plywood yep? Or chipboard?

I'm saving your post as it will help me in the future.

 

[mrdogcat]

Just measured the joists and they are 1.5x4 will they be ok?