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Hi e everyone, My joist hangers are 75mm wide but the joist are 70mm. What do I do? Should I pack out with 5 mms plywood so the joist is tight and then nail? Thanks for help it is very much appreciated. The joists are 225 x 75mms but obviously only 70mms on measurements.

Hi all, I'm on with an extension and have done first floor with 4" solid block, I would like to know if it's ok for me to do the upstairs inside skin with the xella thermalite blocks for more insulation. And continue with the concrete solids outside skin. Thanks for help.

Hi all, I have yet another query. I am opening up a wall to make a opening and using a steel ub which is 102mm x 178mm x 2000m long. I would like to know when I remove my internal wall which the joists are resting, would it be ok to take the opening up to the joists and sit the joists into the...

Hi everyone, I’m building an extension which has a 5 meter span which on the plan shows a ub at 4.2m at the 5 meter mark there is a load bearing wall after which there is a 2.5 m spam to the cavity wall. On the first floor I will have a stud wall which will make two rooms of equal size which...

Hi. The following plan states that I need to build a pier from 4inch solid concrete block to sit, my steel on surley it is sufficient to knock a pocket out of the solid wall(which is a party wall) and place a passion and sit the steel on that. Or am I reading the info wrong. Thanks for helping.

Hi all, I have a plan for replacing a stud load bearing wall with a steel beam, On the drawings it states that I should sit the shs post onto a steel plate onto the existing wood sole plate.. I have a pic of the drawing....could anyone please explain if I am correct. Many thanks.

Hi all, I have been framing my extension roof but unfortunatly cut my hip rafters too deep, they are resting on the wall plate at the point where the cut is around 50% of the width.. they are 11 by 3". my question is can i double up my ceiling joists on either side and make a support to...

Hi everyone, I have built an extension and will be at wallplate next week, now my next job will be the roof construction, the issue is that the extension roof has to match the existing roof at the back and then the ridge will be lower than the existing. The front of the roof will then have...

Hi everyone, I wanted to know if i can build on top of concrete blocks with breeze blocks(the furnace ash type) medium weight. i had to use sold concrete as halfway t first floor was retaining wall filled with c35 concrete, i need to get more blocks to finish first floor to wall plate, and...

Hi all, I have 2 steels 152x89x16 spanning 2.5m and wanted to ask if i could cut down a padstone which is 450x225x100 in half (450x100x100)to rest the steels on the SE said to use 3 courses of enginnering brick but using the padstones would be easier, thanks for any help. Jsmithy.

On my extension i will have dash the walls to match existing, what depth is the norm to set the blockwork back from the facing brick to allow for the scratch and dashing? The house bricks are set back 20mm but they are imperial so wider thann the 100mm that i building the extension from...

Hi all.. I wanted to know which is best for a footing- all in ballast or 20mm limestone and sharp sand? A few saw limestone is stronger? or is it they will both be the same! sounds like a silly q i know but cant find any answers on it. cheers.

Hi all, I hope i can get some help on my problem which is: I am going to build a side extension which is 2 storey, all planning has been passed. the extension will be up to the boundry, my neighbours house is 1.6m approx higher than mine from my damp course to theirs . we are on a hill...

Hi all, I have got planning for a side extension which is two storeys, it is going to be 2.8 metres from the existing house to the outside of the extension. Down stairs is a snug and utility room and up stairs it is going to be a bedroom and with the width being just 2.5m by 5m long i...

Hi all, I would like to know if anyone has used the metrotile for low pitch roof instead of slate? http://www.metrotile.co.uk/index.php?page=Metrotile-Slate My roof on the extension at the rear of my house was slate, but i put french doors in and had to raise the roof so the fall was...

Hi all, Ihave used search and came across the following post...... //www.diynot.com/forums/viewtopic.php?t=227601 I have a simalar problem, i need to span a 1.5m opening and have only got height to allow for a 100x70 lintel and then put on the wall plate which will be supporting the...

Hi everyone, I have a loft conversion planned and have had the structural calcs and everything is ready to go ahead!, the issue i have is-: when i have replaced a window with french doors (i had a question this delt with earlier:)...) i noticed that the whole of the inside leaf of the house...

I have removed a window which is approx 6' long and when i have looked at the lintol it has a hairline crack in it at the bottom about 14" from whrer it rests on the brick work, also where it rests on the brickwork it is only held by half the width of the brick. This seems to have been like...

Hi everyone this is the first time i am asking a question on this site but have been reading for months :) unfortunatly this is the second time of writing this question as i did a spell check and had to allow popups and lost all my text :x :x So here i go again lol. The question i have is...