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Hi all, Due to complicated reasons involving the wrong trims for a GRP roof, the final level of the inner leaf of our extension walls is now between 20-30mm (30mm at highest point) higher than the outer leaf. We now have to put the coping stones on and are wondering how to bridge the gap...

Hi all, I've designed and installed the timber work for a flat roof within a parapet wall on our self build extension. The fall is from the rear to a drain gulley at the front which exits through the wall in to a hopper. The fall from back to front over a 3.4 span is 50mm to 0mm which achieves...

Hi all, I'm in the process of self building an extension with a flat, warm roof - as such I need a qty of OSB3. The prices I see online at a quick glance seem crazy high, £25 ish per 2400x600 board. I have a trade account at local dealer which gets me down to about £20.. Still seems quite high...

Hi all, I'm building a warm roof to our new extension. Rather than the joist sit upon the inner leaf block wall, we have affixed pole boards (195x47) to the wall using stud and resin, and now need to hang our joists (also 195x47) from those pole boards. There are also trimmers for the roof...

Hi all, We've recently had our foundations poured, unfortunately the chap that did it put the excess concrete in the area between the foundation beams, which is supposed to be our 150mm void. Picture below shows the over-spill of concrete that I estimate covers about 10% of the void area and at...

We have a two half flight staircase with a semi landing in between. All the walls in the house are solid except those around the side of the staircase, so I opened it up enough to peek inside... It's an entirely empty space. I can see the structural timbers supporting the stairs, and some studs...