fenceGuru Q&AAnswer
Feb 22, 2023 - 03:13 PM
1) Hole size is 12 mm: Drill a 12 mm diameter hole for a 10 mm rod. (This allows space for the glue around the rod).
(2) Ideal Hole depth is 105 mm: This depth is needed so you don't need to shorten your rod length size... HOWEVER if you slap is thinner than this, then you will just need to drill a hole to the maximum depth possible (and the rods will all need to be cut to size before installing). Avoid drilling your hole all the way through to the bottom of the slab. (The aim is to always finish the drill hole 5 mm before bottom of the concrete slab). Note: The recommended depth for maximum strength is 90 mm.
