Heya ,
I'm 'self-self building' small dimension timber frame structures [Doug Fir] to learn how to eventually build a house ... car tyre and gravel foundations , 63 by 38mm studs , joists and rafters - sheep's wool + straw bale insulation , tyvek and slim board cladding for walls and the roof , - with 8mm timber panelling and clay plaster frames on the inner walls and cathedral ceilings , plus oiled 20mm boards on the floor ... refurbished 2nd hand doors and windows .