terraforma Posted April 26, 2016 Report Share Posted April 26, 2016 I'm getting a new L&L Kiln in just a few days, and it will be installed in a room with a sloping (concrete) floor. The rep at L&L told me to use "metal shims" to level the kiln, but a quick google search doesn't seem to come up with metal shims for this purpose; there are very expensive options for precision situations like machinery, engines, etc. Now it's after hours for L&L, and I'm feeling desperate. Obviously, I can't use wood shims. If there's a very serious difference, can I use concrete pavers as part of the shimming? Just realized how dumb it is that L&L doesn't have leveling feet. I'd love to hear how others have shimmed up and leveled their kilns, or anyone who has a clever idea. Thanks! Link to comment Share on other sites More sharing options...
bciskepottery Posted April 26, 2016 Report Share Posted April 26, 2016 Large flat metal washers from the hardware store. Or just pieces of flat scrap metal from a metal shop. You probably won't need more than one or two. Maybe 1/8 inch thick unless your floor is seriously un-level. My L&L dealer used one or two metal tabs, nothing fancy. Link to comment Share on other sites More sharing options...
neilestrick Posted April 27, 2016 Report Share Posted April 27, 2016 Most kilns don't have leveling feet. All you need is large washers like Bruce said, or if those are too thick then get a small piece of sheet metal from the hardware store and cut it into appropriately sized pieces. The kiln doesn't necessarily have to sit level, it just needs to sit evenly, without rocking at all. Link to comment Share on other sites More sharing options...
Pugaboo Posted April 27, 2016 Report Share Posted April 27, 2016 I got small square metal joining plates from the hardware store. They worked great and if needed I could have stacked two together to make them thicker. T Link to comment Share on other sites More sharing options...
glazenerd Posted April 27, 2016 Report Share Posted April 27, 2016 If there is a small steel company around you: they will have metal shims by the buckets full in 1/16, 1/8, and 1/4 thickness.Commonly used to level steel beams in new construction, or to raise tele-posts. Some local lumber yards who supply home builders will sometimes have them.If you have a handy type person in your family, they can use a level to predetermine how much leveling is required. Mark the back area of where the kiln is going to sit and then use a 2 or 4' level across the floor to where the front will set. Keep the level on the back floor and raise the front until it reads level. Note the distance from the floor to the bottom of the front of the level- that is how much you need. Nerd Link to comment Share on other sites More sharing options...
MatthewV Posted April 27, 2016 Report Share Posted April 27, 2016 I used....uhhhh....wood. The dog hair and dust bunnies haven't showed sign of heat. The metal strapping the kiln was shipped with could be used as a finer shim. Link to comment Share on other sites More sharing options...
g-bus Posted April 27, 2016 Report Share Posted April 27, 2016 If you needed to go a little thicker maybe some pieces of Hardibacker or similar concrete backerboard? Link to comment Share on other sites More sharing options...
Biglou13 Posted April 27, 2016 Report Share Posted April 27, 2016 Would ceramic tiles work? Link to comment Share on other sites More sharing options...
neilestrick Posted April 27, 2016 Report Share Posted April 27, 2016 Hardibacker would be good for thick shims. Tiles might crack under the weight. Link to comment Share on other sites More sharing options...
JohnnyK Posted April 27, 2016 Report Share Posted April 27, 2016 How much of a slope are you talking about? Link to comment Share on other sites More sharing options...
dhPotter Posted April 27, 2016 Report Share Posted April 27, 2016 I'm with MatthewV - used wood shims to level. Link to comment Share on other sites More sharing options...
neilestrick Posted April 27, 2016 Report Share Posted April 27, 2016 The danger is not that the wood will catch fire during the first few firings. But what happens is that the repeated heating of the wood over the years lowers its flash point, and some day it will start to smolder and then you've got a problem. This is why kilns should never be set on wood floors. The other problem with wood shims is that they can compress from the weight. Link to comment Share on other sites More sharing options...
dhPotter Posted April 27, 2016 Report Share Posted April 27, 2016 good point Neil Link to comment Share on other sites More sharing options...
Mark C. Posted April 27, 2016 Report Share Posted April 27, 2016 I use thinner fire bricks They are one and a quarter inch thick They are called splits Link to comment Share on other sites More sharing options...
graybeard Posted April 28, 2016 Report Share Posted April 28, 2016 If you get FENDER washers they are larger then regular flat washers Link to comment Share on other sites More sharing options...
Dick White Posted April 28, 2016 Report Share Posted April 28, 2016 My floor was only slightly out of level, so I stepped on a beer can and used that. Link to comment Share on other sites More sharing options...
neilestrick Posted April 28, 2016 Report Share Posted April 28, 2016 My floor was only slightly out of level, so I stepped on a beer can and used that. I hope you drank the beer first. Link to comment Share on other sites More sharing options...
bciskepottery Posted April 28, 2016 Report Share Posted April 28, 2016 My floor was only slightly out of level, so I stepped on a beer can and used that. I hope you drank the beer first. Pretty sure Dick emptied the can first. Link to comment Share on other sites More sharing options...
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