Where to buy MDF board?

Rspark
Sorry if I am sounding rough but in my opinion a person who does not know a source to buy MDF is NOT a do it yourselfer and therefore ,don't try building one.It will cost you hours of work and probably it won't look the bussiness either,Just buy from a rack company and save your self the hassle.I did bulind my own aluminum rack but I got most of the commercialy avalaible tools in my garage plus I am in the construction work for years.Still it was a challenge and did hit my thumb hard and was sore for weeks.How?
A little scary but while cutting 1/2 thick aluminum on my chop saw ,I forced the 10 inch blade a little harder and with no lubricant,and the cut off piece went flying ,hiting my thumb.The blade at 90$ was warped and thrown away after only few cuts.
So my point is if you are not comfortable with power tools just let go and buy ready made .
Thanks
Regards
George

Peter_s hi
If you mean MDF pieces cut to size and drilled at each corner for threaded rod installation,like Salamander Archetype,then I've been there and done that.The thing is wobbly and unstable!!!Wasted my time and material and did not use cheap MDF but 3/4 oak veneered plywood with oak edging.Looks OK intentical to the Salamander but not stable AT ALL.
My rack is made of commercial heavy gauge aluminum tubing with 3/16 thick walls.It is massive ,heavy like an elephant,if I decide to fill it up with sand it will probably be close to a ton.All hardware is stainless steel and brass.Non magnetic desighn.All connections are mechanical and not welded which is unreliable on aluminum material.All left to do is send it out for anodizing finish
Best
George

Hi guys
I arrive at the thread rather late,I strongly believe that the Archetype design is unstable no matter what.Having said that my copy of the Archetype is more unstable and I know why.I used rubber washers between the metal 5/8 washers and oak plywood .True it can use a little mor torque on the bolts however the archetype is NOT a stable design.For the record I used the end caps that Salamander uses instead of bolts that other hobbyists use as a compromise.I bought them from Audio Advisor as replacement parts.
A good rack in my opinion is the Billy Bags.I got their reference amp stand and it is massive.
My home made aluminum rack is really beyond compromise.
George