Iroko, Cedar and Douglas Fir are the best timbers to be left to go grey. Idigbo and oak if left untreated can leach tannins which can stain the timber and the ground.
Take a look at some gates with natural finish:
Every wooden driveway gate is custom made to your exact requirements.
We offer a site survey to ensure a high quality handmade wooden gate that fits your requirements exactly and advise on the options for your ideal gate: material; finish; access control; posts and fittings.