|I kinda dig that hatch.|
The thing about using wood on spaceships is that it tends to look like wood in closeups. Fiberboard, which can be slick on one side, can avoid that "wood" look.
§Homewyse has a Cost To Frame a Wall Calculator. Obviously the shapes we tend to look for are more expensive but to get an idea of the cost of just the framing it's an interesting calculator. The cost is between $2.50 and $5.00 a square foot.
§JCFabLab is a sort of workshare fabrication shop. $135/month to join.
§Medium density fiberboard.
And don't forget styrene plastic sheets as a material that doesn't read as wood.
(I simply cannot make one of those widgets from Amazon to work with Blogger anymore.)