joists

Hi All, once again turning to you for some advice. I am building a 3 x 3 m corner summer house, which has a diagonal of about 4m I need to stay below 2.5m to avoid planning restrictions and struggling The option I'm looking at at the moment is.... Base - 3" (3 x 2 on concrete with a membrane)...

Hi, I'm currently doing some work on the front garden to take the ground level below Dpc level and have removed paving slabs from the whole area. However after removing the ones in front of the front door, it's exposed the sub floor beneath the hallway. There's no outer brick skin present just...

Hi All I'm currently having the existing basement of my Edwardian semi-detached property made more 'user friendly' via the installation of a proprietary (Triton) cavity drain system, plaster board/plaster walls & ceilings & a wooden floor. One of the main tasks is to 'hide' the myriad of...

Hi, Starting to build a man cave in the garden tomorrow... Could you please help me verify joists of 47x220 C24 are ok for a span of 5.65m? As far as I've found, some tables say it's ok and some say it's not. I'm also doing 2 skylights of 90x120 and doubling up the joists around them, so I...

A cluster of 3 led lights, it's good because the bathroom gets very little natural light. But it's zonally conflicted in plan, being sited just outside the outer edge of the bath/shower It could do with going between the the next pair of joists but this would require extending the cables...

Hi all, first time posting. I’m wanting to extend my bathroom into a walk in cupboard that the spare bedroom has. The wall I’ll be taking out is one side of the staircase from ground to first floor. (Either side of the staircase is red brick supporting wall) they support the ceiling joists in...

Hi. I can't see that this fits anywhere else, and I'm getting right fed up of my house, so I hope some of you might have advice! Ceiling in one of my untouched bedrooms is lath and plaster. The room also has a couple of lath and plaster stud walls, which, after finally getting through layers of...

It is proposed to create a storage room utilizing the roof void above an integral garage. The span is 9' (2740) Plan to use 6x2 (47x150) rough sawn treated timber joists hung from wall plates at 450mm centres with 1 (offset) row of noggins. (I've checked these against tables and this size timber...

I treated the conc. base with sikka rapid dpm, then put membrane or damp course under the stud soles. I'll cover the whole base with a taped seam membrane anyway. I was thinking of masonry screwing a couple of treated 38x63 CLS down flat directly on the membrane at the base of the stud wall to...

Hi all. Im currently doing a load of work on the house and decided the loft would be a good place to store some unused materials and some tools. This is not going to be anything like a loft conversion. I just want a few boards up there for storage, which is easy enough. Im planning on hanging...

The bedroom floor joists in our old cottage need strengthening, the floor is very bouncy and noisy. Currently there’s a hardboard floor down which we will either replace with same or a wood floor. My question is, what kind of tradesman do I need to do this? Wooden floor installers don’t seem to...

Hi, All my floor joist bounce but after recently rearranging my bedroom the joist next the wall is now getting walked on more and is bouncing. I have tried glueing and screwing plywood to it but no joy. There is a 60mm gap between the joist and the wall, the joist is over a patio door. See...

Hi all, so im doing my flat garage roof and need to join the joists over the steel beam and just trying to find out how much overlap you need, is a total 600mm join ok ? so 300mm eitherway from where the arrow is on the picture Also can they be screwed together or do they need to be bolted with...

Hi All, We're in the middle of renovating a house built around 1905. The kitchen for the house is in an extension at the back, this extension is thought to be a later addition but still built in the same style as the main house (block foundations, matching brick walls, etc.). The kitchen...

Hi all, I’ve recently had some major renovation on our house with a number of walls removed and RSJs installed on the lower ground floor. The builders have now gone and building control signed off the work. There’s still a lot to be done, however. I need to fix some rotten joists by the front...

As per title really - is it ok to hang joists on a joist which is already supported at either end on joist hangers? I'm looking to get rid of the ugly timbers which are below ceiling level under a flat roof which is part of an extension from many years ago (1980's). It's a bungalow and the...

Hi all, I want to replace the banister around my landing upstairs with a couple of stud walls so I can essentially create a separate enclosed space upstairs. Part of the stud wall that needs building cannot be built directly on top of the existing subfloor, as there would not be enough space on...

Hi, Would be nice to put some boards down for storage in this Victorian roof space and be able to move around, store Christmas decorations and other stuff. It's at the back above my sons bedroom, accessed from a hatch on the landing - headroom in centre is about 5', there is no lighting. The...

I'm looking to deck over an existing patio, the main issue is the low clearance from the door sill. There is roughly 75mm from the patio tiles to underneath the door sill and 100mm to the top of the door sill. Therefore I would need to use thinner joists or lay them flat. Will it be a problem...

Evening chaps, I've just started to DIY a loft conversion of a Victorian terraced property. The existing ceiling joists run from front to back of the property. I plan to undersling new floor joists from a steel beam so that they're 25mm above the existing ceiling. These have been specified by...