what do you put on the floor of your greenhouse?

Most greenhouses I have been in are either dirt or gravel. Would wood shavings be OK? Any types I should stay away from?

Mine was gravel... cheap and easy. Wood chips tend to rot after a while and become a good source for molds and bugs. Concrete works well, but doesn't absorb water as well as gravel. For once, I think the cheapest and easiest is the best.

I used 3/4 crushed stone 4"-6" deep on top of a layer of landscape fabric. Need to clean the left over wood out before spring, but here is a pic.
DJ

My benches are in the middle of the GH. I have concrete walk way around it. There is a drain under the benchs covered with bark. I have no problems.

gravel and plastic liner under that

About 2' of 3/4" crushed rock. I have a series of perforated french drains around the perimeter and down the middle, running through the foundation wall and out to daylight. SB

Well, I guess I"ll stick to the gravel, then. I think I'll just use pea gravel so it'll be easier to walk on. My greenhouse is very small so I don't have any drains. But would you believe no sooner than we got it built that we got a mole(!!!) in there, lol.

My greenhouse was finished recently. DH got a scoop of small pea gravel and we used it for the floor, about 3 inches. There was some left over. I leveled the dirt and put down landscape fabric first. Here's a pic of when he put it in. Becky

Oh, that looks like what I'll do. Last night, we had a horrible cold front move in. Winds were as high as 60 m.p.h. and we lost our electricity. I had some rooted brugs out there and some greens that had sprouted with NO heat. So my spousal unit (some call him Genius John, lol) started up charcoal in the grill, waited until it got red hot, closed the top and put a big metal bucket full of large rocks on top and left it in the greenhouse all night. It stayed up in the 40s and everything was fine. Phew, close call.

Oh, that looks like what I'll do, beclu.
Last night, we had a horrible cold front move in. Winds were as high as 60 m.p.h. and we lost our electricity. I had some rooted brugs out there and some greens that had sprouted with NO heat. So my spousal unit (some call him Genius John, lol) started up charcoal in the grill, waited until it got red hot, closed the top and put a big metal bucket full of large rocks on top and left it in the greenhouse all night. It stayed up in the 40s and everything was fine. Phew, close call.

I used pea gravel on top of weed cloth. Works great for me. In September, I take everything out of it and saturate the gravel with weed killer, then insecticide/fungicide. Once it has pretty much dried out, I close the whole thing up for a week and solarize it.

Xeramtheum

When I put my greenhouse in, I dug out the whole inside of the GH down 2ft. below the "floor" level. I then filled this "hole" with pea gravel and installed paver bricks on top of the pea gravel. The pavers surface is the floor of my GH. The floor of the GH is always dry because any overflow water just drains through the spaces between the pacers into the pea gravel. Since I have heavy clay soil, this overflow water drains very slowly from the pea gravel "bucket" and thus adds to the moisture/humidity level in the GH which is very good for my tropical/tender plants during the winter months.