Farmhouse design style, or farmhouse architectural style?

Farmhouse design style. thanks for asking.

I think the trim should stay consistent with the architectural style of the house itself. You could choose simpler styles within a range of architecturally appropriate choices and bring in the farmhouse vibe with furniture, decor, fabric, etc. That way when you decide to transition to the next design style, your house won't stand in your way. And the house will remain attractive and congruent even when empty if you should ever decide to sell.

Crown is unnecessary , other than a flat and simple trim for cabinetry in the kitchen. A 1" x 6 ( 5 3/4 ) plain and simple baseboard, nothing added, not even shoe molding......looks fantastic. Same plain and simple with 1 x 4 for window casings, add a backer if you like. Skip the goo.......no routed details, nothing skimpy. A single recessed panel door, a two panel...even three. Spare the curves, arches, and six panel stuff.

I have seen a lot of authentic farm houses and there is no set design standard . . . other than it is whatever the farmer wants for whatever reason he wants. If you want it authentic, have at least three different trim styles and at least two different door styles.

I would probably do everything in flat millwork with an eased edge.

But I agree with Mark, a lot of time there was a variety of trim, and there was a certain hierarchy to it. Front of House vs. Back of House. Public vs. Utility areas. Downstairs vs. Upstairs.

And sometimes the entry door to the room had wider or more detailed trim than the closets or cabinets in the same room, because the cabinets or closets were not as important as the entry doors.

One thing is making sure it is proportionate. There's a formula for baseboard height ratio to the ceiling height- 8-10%, IIRC, although that sounds too tall. Our 80's tract home in FL had typical 3-1/2" base molding, and it just screamed, 'cheap tract home'. In our new house (Craftsman-ish), I built up a baseboard from a 1X8, a 1/2 X 1-1/2 laid flat, capped by a 1X2 with an eased edge. Simple, and tall enough for our 9-1/2' ceilings.

I fully agree with Jan!

I have an original old farmhouse which is currently being remodeled and we have 1 x 6 plain trim around the windows and baseboards, and 1 x 4 around doors. I love the simple look. It is beautiful. I've hand made all of our trim and I always get compliments on how beautiful it is.

We are not doing crown molding except in the kitchen where we have to due to some drywall problems.

We need to make the same types of decisions for our baseboards and our door and window trim. A simple 1x8 was suggested for the baseboards (we will have 10' ceilings) but in addition to concerns about dust-collection I might like to incorporate a touch of elegance. The architectural style is barn/farmhouse which has a certain charm in itself but it's also quite masculine with all of the straight lines and right angles (though not as much as Craftsman). Our doors will be 2-panel with square tops, but I'm partial to French Country style and was hoping to incorporate a simple cove or roundover at the tops. The same issue presents with the doors and windows as I like the overall simplicity suggested here but I'm not sure if I want something as stark as some planks nailed to the wall. Suggestions?