Fastest way to 70 Construction?

So yeah, I don't really care about the price, my construction atm is 60. Any help is appreciated.

 

Levels 52 to 99: Build mahogany tables at your steel framed workbench. You will use 92,140 mahogany planks.

Taken from: http://runescape.salmoneus.net/construction_help.html

 

Hmm, interesting. Thanks.
Edit: Yeah, i think ill just use gohans method. Thanks again.

 

I see a lot of players doing oak larders... I'm not too sure about those. Give 'em a shot!