loft legs/stilts for making storage space in loft

Fat_Walt

seatbeltnoob wrote: »

problem is you will limit yourself a lot if you use timber planks in how much insulation you can put on. the loft stilts raise it up to 170mm, so you can use 150mm loft insulation. with 4" timbers you are limiting yourself to 75mm insulation (you need some air gap).

Let's not forget 4x2 is actually not 4 inches more like 89mm. If you want comparable elevation to the loft stilts you would need extremely wide (and heavy) timber.

Loft stilts weigh practically nothing which is their key points. Most floor rafters in the loft are weak because they were never meant to have people walking on them. You put great big 2x6 on them and you put a lot of load on which will limit how much stuff you can put on top.

they are ceiling joists.

TheCyclingProgrammer

seatbeltnoob wrote: »

problem is you will limit yourself a lot if you use timber planks in how much insulation you can put on. the loft stilts raise it up to 170mm, so you can use 150mm loft insulation. with 4" timbers you are limiting yourself to 75mm insulation (you need some air gap).

Which is why, if we'd been able to top up our insulation without causing other issues, I would have used the LoftZone kits instead - best of both worlds, raises the boards up to create enough room for 170mm insulation plus air gap and gives proper support (and lighter than using wood).

Gloomendoom

seatbeltnoob wrote: »

Let's not forget 4x2 is actually not 4 inches more like 89mm. If you want comparable elevation to the loft stilts you would need extremely wide (and heavy) timber.

You would be better off increasing the depth if you want to improve the stiffness, not the width.

Which is exactly why I used engineered joists. Stiffness and increased elevation without the weight.