Fire-resistant shop floor

[eyrian]

Ever since I got started with welding, I've been doing all my hot work outside on my stone porch for fire resistance/safety. However, I've really gotten tired of lugging my tanks about 100' uphill from the shed/shop, and I really don't want to contemplate moving around the forge I'm building. The shed is large enough to work as a smithy as well (Is that going to be a problem? Should I just install a sawdust collector?), but it has a wooden plank floor, and I'm worried about fire resistance.

I'd rather save my money for steel and a nice anvil. What is the cheapest way I can install a functional, fireproof floor?

I've got about an inch of clearance to install the floor in before I start running awry of doors and such.

[steve sells]

why not compacted Clay ?

[Mills]

I use sheet rock. stinks some when the paper burns. Has to be replaced occassionally, easy to stand on, too, I like it better than a rubber mat for that purpose.

[MooseRidge]

Mine's gravel over plastic sheet......Gives good support, but doesn't hurt my back and knees the way concrete or brick does....

[chyancarrek]

I just lay down concrete board around my hot drop areas when I'm doing a demo in a parking lot, wooden floor or on grass the host doesn't want burned.

I don't worry about the rest o' the areas where hot drop isn't a problem.
Chasing an errant piece and retrieving it quick enough won't present a fire hazard.

[welder19]

Sheetmetal is probably the easiest way to go, the last time I bought any was a 4' x 8' 16ga and I think it was around $28.
I don't know how big of a floor you need to cover, you could always just spread some sand over it . Welding isn't too bad, it's torch cutting that creates the biggest fire hazzard.

welder19

[ertwdan]

I used 22ga 4 x 8 sheets to cover the floor and the first 48" of my walls. Best $100 I've spent. I also share the space with my woodworking equipment, but I try to move it outside and keep the metal work indoors where the noise won't bother the neighbours. Another method I used for a while was "quilting" a floor together with scraps from the sheet metal shop at work. Stitching these little pieces for my floor helped improve my tacking and sheet metal skills. I covered about 100 sq ft this way for the cost of some welding wire (maybe $1.00)

[eyrian]

Thanks for the replies, guys. I'm gonna check out sheet metal/tread prices. If not that, then I think I'll probably go for concrete board with some fire-resistant paint. That sounds cheap.

[Glenn]

Make sure whatever you put on the floor is not slick when it gets a little dust on it. When as you lay down on your back, with your knees behind your ears, and just after you are able to breathe again, it becomes important remember where you tossed that hot piece of metal.

[Finnr]

Glenn? is this the voice of experience talking?
Finnr