Do all 10 chairs need to be at table all the time or can it be 8 chairs and 2 you bring over from somewhere else for large sit downs? DIAL UP YOUR CHAIR sizes to be proportional to table so, as to not look like child size chairs. Restoration Hardware furniture is over sized and generous proportions compared to many other retail sellers. Just any chair could be easily dwarfed by the RH table and look tiny. Here are a couple of my favorite modern chair makers KNOLL Brno flat bar chair which can be bought at auction and recovered in leather or vinyl of your choice and David Edward Furniture made for corporate, resort and colleges and available through dealers, I am showing here as a "host chair". Other "host" chair items possible of course. I just like this one.

You can definitely combine different timbers in your scheme. Furnishings will tie into your floors as a material rather than a tone, although the red tone in jarrah is quite dominant, it would be a mistake to ignore that. I would opt for warm pigments and colour notes, but not so light on the walls that you emphasize the red by contrast! Without knowing your stele in furnishings, interior directions, I am making suggestions on rooms I have seen or created that do work in this scenario. You will take from it what is relevant. I have seen a rich wine colour, which does look fantastic with timber furniture, it creates a moody ambience which is rich and has a sophistication to it. Lighting is key to creating a successful look with rich tones. This deep rich plum shade can be used for modern, traditional or specific interiors, like provincial or deco quite easily. Have you read pantones colour of 2015 is Marsala. Is a crimson shade, so you can be right on trend too. I suggest keeping your trims white to really crisp up the architectural details, ensure your ceiling are Matt white to absorb light and introduce texture to soften the look. Jarrah an look very formal, so if you have a glossy finish, bring in elements that counteract or contribute that same shine, as in metaliics or mirrors etc. Textiles in plush textures like tactile fibres layering pillows featuring cashmeres or velvets will add to the luxe and keep it comfortable too.

new house with a blank canvas of primarily white walls, black frame doors/windows & blonde timber (oak) floors so would like to stick to this palette for the big items (though will introduce pops of colour with smaller decor items)... going for a scandi inspired contemporary look... and kitchen next to open plan dining is black, white & grey, haven't bought stools yet but will probably get timber ones

A glass dinning table with dark timber legs in a X cross look in the middle of table will be ideal . You can still see the beautiful floor tiles and the dark timber legs will look amazing over the grey tiles. Have full fabric greyish brown chairs with same leg as the table.