joists

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...

Hi all. I had a squeaky uneven upstairs bedroom floor that seemed to go downhill at one end. I removed old t&g floor to find the room straddled the wall between utility room and the garage. The top of the breeze blocks being higher than the top of the joists. So am now a bit puzzled as to how to...

I've read a lot of really helpful stuff on her over the past three years as I renovate my 200 year old money-pit of a house.. I'm on to the bathroom, not a huge space, approx 3m X 3m. It has old hand cut elm boards of varying sizes and elm joists every 35cm. The board are beyond saving due to...

Hi guys/gals, I’ve recently had my building regs drawings through from my architect for a loft conversion where the truss roof is coming down and new roof put up, it states “restraint strapping - ceiling joists and rafters to be strapped to walls and gable walls, straps built into cavity across...

I've dug out a hearth and would like some advice on installing some joists. Please see photos. As you can see the hearth has left a gap. The front wall of the hearth supports the cross joist. I propose the following 1. Keep the cross joist and leave all existing joists as they are 2. Add...

Hi all, just in the final phases of planning a loft conversion, I am not going to apply for building regs but will be building to the regs, the rationale being there is an extension at our house that wasn't signed off when built (long story) and therefore I will need to get indemnity insurance...

Hi there. I am building a treehouse. It will be fixed to two joists that will sit either side of a tree. I plan to tighten the two joists toward each other, either side of the tree, but am unsure what bolts / fixings are best to use. The tree is at least 450mm / 18 inches wide, then each joist...

I appreciate things are hard to explain without pics but here goes. I have a square house with an attached square garage (just say it is the same size as the house) but this is set forward of the house by around 2 metres. I am building a small extension to the rear of the garage so back of house...

12mm PB going up on ceiling, what difference does it make wether twin or coarse? Are twin/coarse intended for different purposes? I had to shim the underside of joists with 9.5 ply strips, panel pin and pva fixed, so I'll probably use longer than the usual recommended 38mm (not that 38mm...

If cable is installed perp to joists, threaded thru a series on in--line holes in joists, does the cable need support additional to and between the joists? The gaps between are 320-350 Not that it seems to have made much difference to the original sparks that wired the house, there's a 1.5mm...

I am replacing two windows in a victorian house from wooden sash windows to PVC windows. The windows are on opposite sides of the house with a stone outer lintel and wooden internal lintel - solid walls with no cavity. Both stone lintels have recently been replaced. I imagine the internal...

Hi I am going to be installing the first floor joists and boards on my house extension and have a question about access! :unsure: After the joists are installed I intended to install the floor t&g boards on top which is all great, although how would I gain access to my new floor when it's...

Hi I am nearly at first floor height for my extension and I have made a hole to check the existing floor level. The bottom of the existing floor joists sit level to the bottom of the hole I made and the top of the joists level to the purple line in the picture. Regs say: Restraint straps must...

Hi, We have had an extension built and are having the layout of the house completey changed so thought it would be a good time to install underfloor heating. I'm a boiler guy by trade but have never installed UFH but it doesn't seem too complicated. Firstly I assume that in the new extension...

Hi, I will be having a small flatroof to the side of the house (2m x 2m). Wanted to check if I need to put the Masonry Joist Hangers directly into the existing Brick Wall? Or if I can put a timber wall plate and then timber joist hangers go into the wall plate similar to attached (I have...