Is it safe to stack canned jars for storage?

[NuTzy]

Is it okay to stack home canned jars when storing them long term? I've been filling up my shelves pretty fast and stacking would definitely help save space, but I don't want to risk breaking seals or damaging the jars.
Can I use a layer of cardboard or something between stacks? I'm storing standard pint and quart mason jars with metal lids

 

[ChicaBuena]

Yup, I do it all the time, but I don't just stack ceiling high and call it a day. I'm never doing more than two rows and I always put a cardboard between them. Also, I always stack sealed and cooled jars.

 

[Abdul Muhamed]

If manipulating canned food jars breaks the seal, it wasn't sealed properly to begin with. Think about how hard you have to tug to pop a seal off a jar. I can usually do it with my fingernails if I pull very hard, but sometimes have to use a bottle opener. They are on there tight. A piece of pasteboard or cardboard will assure that they don't tilt and fall off the jars below them.

 

[jerick_s]

Is it okay to stack home canned jars when storing them long term? I've been filling up my shelves pretty fast and stacking would definitely help save space, but I don't want to risk breaking seals or damaging the jars.
Can I use a layer of cardboard or something between stacks? I'm storing standard pint and quart mason jars with metal lids

I'm with the others here, but just make sure the jars are completely cool before stacking them!
And yes, using a layers of cardboard or even thin plywood is an excellent idea.
And also just avoid stacking them too high, generally no more than two ore three jars high, especially for quarts, to prevent any issues!

 

[007]

There are premade plastic trays for 9-12 jars, make stacking easy. Does cost $$.