This is a steerable sledge for hard-packed snow made out of plumbing parts. We recently had several inches of snow in Southern England, and as usual, everything ground to a halt. I know some of you are used to a regular several FEET of snow and everything goes on as normal, but we do things differently here, OK. We have several good sledging hills around, and I decided to make a fast steerable sledge to take advantage of the conditions.
We have a couple of the cheap plastic sledges which are pretty fast, but not at all steerable and break easily. I wanted a sledge which was strong, steerable and fast. I chose the waste pipe to give a minimal contact area on hard snow but a larger area as the snow deepens. The tube is also slightly flexible to allow bending for the steering.
UPDATE - This sledge works best in hard-packed snow. To make it work in deeper snow, follow BugsyandSpike's suggestion below and put a 2" x 1" piece of wood (with accordingly longer bolts) between the platform and the tube to give it better ground clearance. (There's a few other worthwhile mods in that comment too.)
It has been mentioned that PVC gets brittle and can splinter in the cold. I've given my sledge some pretty rough treatment in a couple of degrees below with no ill effects, but it's one to be aware of.
Step 1: Parts and Tools Required
The sledge is made out of a sheet of 12mm ply, a 3 metre length of 40mm plumbing waste pipe, 2 x 45 degree pipe couplers, 2 x equal tees, 2 x end pieces, a bag of 12mm bolts with square nuts (greenhouse bolts) and a pot of pipe adhesive. Best to get these from trade suppliers (e.g. Screwfix) rather than the big DIY shops (B&Q for example) as they are MUCH cheaper.
The tools and other materials you will need are a drill, a saw, a large screwdriver, a wooden or metal rod and some duct tape.
I've used metric units here, but if you're using Imperial measurements, the cut size of the ply is 34" by 20.5" x 3/8" thick". The 40mm pipe diameter is just over 1.5", but I think you use 2" in the U.S. As a rule of thumb, 25mm = 1", 1' = 305mm, 1 metre = 39". There are 10mm in a 1cm, and 100cm in a 1metre.