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Fire Box ( how thick 1/4" or 3/16 " )

Discussion in 'Side Fire Box' started by gyeakle, Feb 21, 2011.

  1. gyeakle

    gyeakle Fire Starter

    Need help on how thick i should go. 1/4" thick will be about 300+ lbs 3/16 will be about 100lbs less. will 3/16 warp ? the box size is 30x30x24 . my steel guy is trying to talk me into 3/16. i know 300 + lbs is alot of weight but i think if i brace it to the frame of trailer i should be ok. Need your help on this one. Thanks
  2. bmudd14474

    bmudd14474 Legendary Pitmaster Staff Member Administrator Group Lead OTBS Member ★ Lifetime Premier ★

    I have the same decision to make. My firebox will be 35x35x35. I have been told that 3/16 will be heavy enough but I am still uncertain.
  3. daveomak

    daveomak Epic Pitmaster OTBS Member SMF Premier Member

    I have built many wood burners for my hunting friends for their tents. I used 10 ga for the box and 3/32 for the cooking surface. Weight is a big issue. The firebox was filled about 3" with dirt. Worked fine. Firebrick or sand works well also. Thermal mass is used to achieve consistent cooking temps. It is a preferance thing. 

    Personally I use firebrick in my whole pig cooker. It seems to keep more heat in the firebox. The bottom of the firebox stays cooler.
  4. randya

    randya Meat Mopper SMF Premier Member

    3/16 will not warp,, but as alway 1/4 will hold the heat a little better, I live in florida and our winders are not an issue and I use 3/16".

    Good luck on your build and let us see some pictures too.
  5. tom37

    tom37 Master of the Pit OTBS Member SMF Premier Member

    My recommendation would be to buy the thinest 1 1/2" square tube and build a box frame.Skin the inside with 10 ga or roughly 1/8". Insulate the middle. And skin the outside with 16 or 18 ga. Have the sheet metal shop break it in 3 places being the back and both sides. Have um make you a top with a flange so it overlaps the sides. And then just a single sheet for the bottom. 

    All in all you should come in at or about the weight of the 3/16" plate. And you will have a firebox you can set your hand on.

    I have been doing alot of reading about the stumps clones cookers and it seems this is an awesome way to go. 

    I know it sounds like a ton of work but I really think its worth it. My next rig will be built in this mannor. 
  6. gyeakle

    gyeakle Fire Starter

     Thanks Men.
  7. fourashleys

    fourashleys Smoking Fanatic

    If weight is an issue I think Tom37 has your answer. I used 1/4" on the firebox with a 1/2" door but weight didn't matter and I couldn't beat the price.