But if something does happen to it, all eyes will be on you if it was your fault or not. I have actually seen them with pre drilled holes for services, however I would assume that this was taken into consideration and the required calculations would have been done to compensate.
I know some one who does all the calcs for these, I will ask him tommorro and update you on what he says. If the RSJ is a new install done in the last 10 years or so it would have been calculated for all stress etc etc, there is no detrimental effect in drilling through the RSJ and will not weaken it.
Well I am glad you have said that because on a few jobs I have had to cut a few holes as there has not been an alternative but I would rather not as they are a pig to drill. Terms of Use We have placed cookies on your device to help make this website better.
You can adjust your cookie settings , otherwise we'll assume you're okay to continue. Drilling trough RSJ's. Start new topic.
Recommended Posts. I've seen RSJ's cut through by installers like this before. It's a good point about the structural engineer of course, if the joist had been part of a wall I would have hesitated before mauling it.
Joined: 3 Sep Country:. Select the supplier or trade you require, enter your location to begin your search. Please select a service and enter a location to continue You must log in or sign up to reply here. Show Ignored Content. Related Threads. Long waste pipe runs tomsim , 20 Apr , in forum: Plumbing and Central Heating.
Replies: 14 Views: Replies: 3 Views: Candoo Multi-trade Services Limited. Hi, I'm having radiators removed on ground floor and a forced air system installed soon.
The diffusers have arrived and they My quartz worktop has been fitted with the hole for tap but the kitchen fitter did not make the corresponding hole for the tap. Regards BOD. SpaElectrical Posts: Joined: 16 December And use a good metal cutting fluid and slower speed on your drill. Do not have a preconceived agenda which will only distort the result.
Luckily for me my drill bits wouldnt go through the RSJ so it gave me time to think and stop what I was doing and consider the implications. Thanks for the advice. Just a word of warning on those heavy magnetic base drills, strap the safety chain on, ive seen one drop thru a chipboard floor and not from a great height. Arnot Posts: Joined: 25 April Dont let them anywhere near masonry though - lifespan less than 1s Hienously expensive but worth every penny.
A word of warning though, if you use a large one and it snatches, be prepared to dodge the drill and whatever you do dont brace it against your shoulder to get more pressure, if it grabs it will lay you out quicker than Mike Tyson! Regards Arnot. The magnetic drills also take special drills up to mm for the largest sizes which just machine out a groove and leave you a washer without a hole!
They cut excellent holes and it is just not worth drilling with ordinary drills. Use the cutting fluid and a 25 mm hole takes about 10 seconds with no effort.
0コメント