beam

  1. U

    Lowering ceiling - increasing attic height / adding beams etc

    Hey everyone. Long time lurker here but I've only just signed up. **** tldr; I want to lower my ceiling using steel beams on party walls to increase attic headroom. The house is stripped out right now, so I have a lot of freedom. Can anyone advise on beam sizes, bearing depths etc? **** I'm...
  2. D

    Treated pine beam span

    Hi, I'm putting up a freestanding patio (5 x 2.6m) with insulated roof panels on top. I've got 6 post footings at the moment but wanted to eliminate the middle 2 posts and just have 4 posts. If I'm using treated pine what size beam would span the 5m? Or is that too far? For roof load, depth is...
  3. D

    Treated pine span

    Hi, I'm putting up a freestanding patio (5 x 2.6m) with insulated roof panels on top. I've got 6 post footings at the moment but wanted to eliminate the middle 2 posts and just have 4 posts. If I'm using treated pine what size beam would span the 5m? Or is that too far? For roof load, depth is...
  4. SpaceWorm

    Removing Internal Walls - Is this a Structural Wall

    Right lads, belt up, I am renovating a 1957 brick cavity wall-built bungalow an am planning to remove the wall between the kitchen and lounge as one of my first jobs. I had designed a beam to span the opening on the basis that the ceiling joists coloured pink in the attached plan would be...
  5. T

    joists for decking are warped, how to rectify them?

    Hi all, been busy building a decking and I received all the materials for the frame four weeks ago. The joists have been stored outside on their sides on some brick footers. Made some progress at the beginning then had to stand still for a while; thus out of the ten 4.8metres 120*47 joists I...
  6. R

    1930s Roof Support Beam Question

    Hello! DIyer here.. however this job seems beyond me.. I'd really appreciate some opinions on what you guys think would be a reasonable solution - some context/knowledge/insight, before I'm swamped in quotes. Or in the event I decide to do it myself. This is my mum's house, and the diagonal...
  7. M

    Can RSJ beams be placed on top of each other

    I have recently had RSJ's installed to prop up chimney stacks as the chimney breasts underneath were removed. The BC were informed and a structural engineer engaged. I provided the calculation and plans to the builder. I noticed that the fabricator had predrilled holes in the beams supplied ...
  8. R

    Repair or replace concrete garage roof beams

    Looking at renovating my garage in the near future, however I've no idea how serious the cracking in some of the concrete roof beams are. It's an old concrete sectional garage (no idea how old), and some of the beams have crumbled to the point which the rods are exposed and rusting. I've not...
  9. N

    Very basic loft conversion. Who is needed?

    Hey all. As a lot of people I have found myself working from home and needing somewhere to be more private while working on sensitive material. We have always planned on doing a full dorma loft conversion at some point, but in the mean time I’d just like to use the space up there. I’m happy...
  10. J

    How to install and box out a beam under extension roof. (1)

    I`m going to remove an internal partition between my extension and need to stick a 152x89 beam to help support the flat joist roof. Engineers confirmed that 152x89 is more than enough. Do I need some sort of spreading plate or grout? How do I install it? when the beam is in place how I will...
  11. J

    Remove internal partition on my extension. Will the flat roof stand?

    Hi, I got an extension with a flat roof and 47x125 trusses with an average distance of centre to centre less than 400mm and a total span of 5.36m A the moment I have a blockwork internal partition dividing the extension into 2 rooms and would like to have one large space as per my neighbours...
  12. A

    Summerhouse / Garden Office Wood Repair - Advice please

    Hey team, Can anyone suggest how to fix up this garden office. Inside: corner is cracked and you can just about make out daylight. Woodlice are roaming around! The ends of some of the rear beams have rotten away. Rotting of rear beams, depth 1”. Thinking Ronseal Wet Rot Hardener. I’m...
  13. F

    Installing rsj

    Hi, I’m installing a 4m 152*152 23 rsj in a double skinned internal wall with no cavity. Both sides internal as it used to separate the garage. This is a bungalow so only has a triangle of brick above it which supports purlin. Because of existing lintel when I put the padstones in the steel...
  14. T

    Block and beam into existing wall??

    I’m building a rear extension on my bungalow. The block and beam floor has been designed so that the beams run parallel with the rear facing wall. So i understand that usually if they were running perpendicular, the beams would key into the existing wall and be supported by the load bearing...
  15. T

    Padstone for Bifold Steel beam?

    Hi I have a single storey extension going in with a 4m long bifold to the garden, it is likely that due to this span we would be installing this steel with welded plate as you’ve shown in your detail drawing. My question is: Where this steel is supported at either side of the bifold, will the...
  16. A

    Load bearing wall advice

    Hi Everyone I would like to remove a wall on the first floor. The house is a typical 1930s terraced house. Attached is the wall in question. The wall is a brick wall, but I have checked the loft and the joists are parallel to the wall except one joist that sits on it. However on top of the...
  17. Gauss

    Roof joist installation

    Hi - My builder is in the process of finishing off my 8m by 9m outbuilding and he’s installed the roof joists as attached. Does this look right? Any advise or thoughts are appreciated. TIA.
  18. S

    Suspended concrete garage floor

    After being let down by several structural engineers wondering if anyone on here will be able to help me. I purchased a new house 4 months ago and the garage is my next project. Water has been getting in for several years and it has rotted the existing suspended floor rendering it useless...
  19. acurachris

    Council regulation over the top?

    Hi I am doing an extension and had a trial hole dug for the foundations which was to 1.4m (deep due to trying to find good ground - point 1 below). The water table was oily/contaminated and ground is obviously made up ground. My council building inspector came out and inspected the hole and...
  20. F

    Loft Beam Installation

    I have just installed the following two beams for my loft conversion. 5.1m 203x203x46kg on 100x150x500mm pad stones. Unfortunately these are sticking through the roof slope. I have been told by an architect these can be cut at 45 degrees halfway up the beam without compromising the structural...
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