Kiln dried Oak logs for sale in Flexi Crate – the most dense hardwood specie available in the market – oak logs for sale in Flexi crate. Free delivered to most UK postcodes. Oak logs are EU standard size, 25cm in length and 7-15cm wide measured across the widest edge. Neatly hand packed in Flexi size crate. Oak firewood is average 8-20 % MC, Woodsure/Hetas accredited.