Browse Forums Landscape & Garden Design 1 Apr 06, 2016 10:21 pm We have a retaining wall built from sand stone blocks. The blocks are a rough rectangular shape and average about 1m long by about 500 square. The top (center) of the wall is on the boundary of our land. I would like to fix some sort of fence to the top of it. Not for privacy, just for safety and to act as a boundary fence too. I'm thinking of fixing some timber posts using steel brackets and then running steel wire through the posts. To fix the steel brackets to the sand stone blocks, I would need to drill holes into the blocks. I'm just worried that if I start drilling into the block it might split? Does anyone have any experience with this or have any advice. Here's my plan so far. 1. Use angle grinder and cold chisel to carefully level a small pad on the top of the block for the steel bracket to sit on. 2. Drill two holes larger than the bolts into the sand stone for fixing a bracket like this one. http://www.bunnings.com.au/pryda-90-x-4-x-10mm-bolt-down-post-anchor_p1120099 3. Fill the holes with epoxy adhesive like this stuff. http://www.bunnings.com.au/sika-1l-high-strength-epoxy-repair-adhesive-concrete-fix-kit_p0960347 4. Line the bracket up with the holes and press the bolts down into the epoxy adhesive. 5. Allow to set for a few days, then proceed to build the fence off the brackets as per normal. Would this plan work? Like I said my biggest concern is drilling the holes. I don't want the block to start splitting and sand stone isn't a very hard stone. Hello, I am looking to install a fence but I tried to dig the holes with a post digger I realised the sand is very runny. Very, very runny. It just slides off the sides… 0 11206 Those span tables can be pushed a little for a low deck if you dont mind a little flex. Last deck I did, I pushed it a little and it was still rock solid - no noticeable… 6 13727 I'll look into different shower heads and ask the plumber about some engineering and see what he says. Thanks 2 9551 |