Browse Forums Renovation + Home Improvement 1 May 04, 2015 3:13 pm Hi guys, great forum! We have bought a lovely old cottage on a couple of acres and are renovating, it's a 3by1 weatherboard house on stumps, approx 1950s. I would like to do some restumping and, although it's really admit I am not a builder, can get a lot done around the house myself. The house has not a lot, but sufficient space under it, and I reckon the lowest stump need to be raised by at least 150mm, possibly more... So, I just like to confirm the process of restumping yourself.. 1) find the highest point under the house 2) put the laser level on this 3) in coconcentric circles around this 4) for a single stump place a jack to the right and left jack up beam level +5mm 5) Remove old stump 6) dig a hole (if not already there) approx 300mm deep 7) create a stump (if you can not reuse old one) of the height minus 200mm hang this off beam with nails 9) fill hole under stump with concrete 10) let concrete dry for 2 days 11) remove jacks slowly 12) repeat for every stump in concentric circles around the highest point till all done. Would this work? Also, would I be able to use 60mm thick pavers instead of concrete? Thanks for any advice... Re: process of restumping a house 2May 04, 2015 7:25 pm Lifting of any house should be done slowly and in increments. Don't just jack up one stump and replace it. When you say stumps I presume you talking timber posts set in concrete? We used to re-level old houses we were working on as part of reno work but they were mostly brick piers. They were pretty easy to do. We'd set our dumpy level up inside and draw a quick map to say where the low points were and how much we needed to lift each point up. Jack up under a bearer with a 20 ton hydraulic jack then simply put some packing between the top of the pier and the underside of the bearer. We'd just work our way around the house. Stewie Re: process of restumping a house 3May 05, 2015 10:32 am Thanks for your reply Stewie, yes I mean timber posts. A dumpy level is a clear hose with clear bottles on both sides I presume? I'd like to replace stumps as I think some of them are pretty rotten, I haven't dug then out yet. I am not sure if the house is sinking because the stumps are sinking into the ground, or if they are slowly rotting away. Will have a look tonight. If I replace them what you you think about putting the stumps on thick tiles? Would be so much easier than stuffing around with concrete... Re: process of restumping a house 4May 05, 2015 1:33 pm No, the concrete is there to help anchor the house to the soil via the stumps which also gives it some lateral bracing. A dumpy level is what builders use - kind of similar to what surveyors use although their theodolites area lot more complicated. What you are talking about is a water level which can also be used of course. Stewie Re: process of restumping a house 5May 05, 2015 8:04 pm As Stewie said, the stumps need to be in the ground otherwise the house would fall over when the wind blew, or shake pretty bad when people walked around. 300mm deep footing also isn't deep enough. In bad soil areas I've put pier footings down 2.4m deep before. You should be aiming for a minimum of 900mm deep. Where are you located, what is the soil like for eg clay, rock, sand, shale and how high off the ground is the house approx Re: process of restumping a house 7May 05, 2015 8:45 pm rcolijn Ok get it, deeper is better , house is approximatly 60cm of the ground, very low indeed... Soil is mainly rock and sand. After all I live in Stoneville, no kidding!! Ok, I would aim for a minimum 900mm. Typically a soil test would be needed to determine best depth, so what I state is pretty much rule of thumb. Stoneville, is that after the soil type of the type of young punks getting around Re: process of restumping a house 8May 05, 2015 10:55 pm Step 1 Get a reblocking design Step2 Get a building permit as owner builder Step 3 Follow the permit plan and get your excavations inspected and approved Step4 Get a final certificate 5 Good luck Foremost Building Expert in Australia,assisting with building problems/disputes, building stage inspections,pre-contract review advice for peace of mind 200 blogs http://www.buildingexpert.net.au/blog I apologise for any confusion, but your understanding is correct. We approached our situation differently based on advice from… 11 53212 Thanks very much! And would the landscaper/contractor generally involve the engineer or is that something the client would do? Thanks for your help 2 10026 The most definitive answer to your question James is this taken from the James Hardie Axon Cladding Installation Guide - i just happen to have it… 5 3673 |