One row is for grape vines, mainly table grapes for fresh eating, or juice if there is any left-over. With 8' spacing, I figure I can plant 8 vines. Since grape vines need more sun, I plan to grow the vines in front of the berry row.

The other row is for blackberry and raspberry. The blackberry will be Black Satin, Triple Crown and Boysenberry, each space about 5' apart. Raspberry will be Heritage and maybe another variety. The spacing will be about 4' or 5' apart. In total, I figure I can have 10 berry bushes total.

Some questions:

1. Is the above spacing reasonable?
2. Still undecided for the grape vines support. I'm thinking about wood T trellis for the berries. For 50' row, should I set one or two posts in the middle?
3. With 4x4 end posts, do I need to set the end post supports for 50' row?
4. Any issue with planting blackberry and raspberry in the same row? Some says to separate them.

There are a number of online resources with pictures, measurements, and advice for grape trellises. I would highly suggest reviewing those if you have not already.
You didn’t ask but I’m going to provide my opinion on your blackberry and raspberry selections (that’s what we do in this forum).

- Triple Crown is great but you need 8ft between the plants.
- Black Satin is not so good. It will overlap your TC harvest in late summer and will likely get infested with SWD. The flavor is poor too. Try an earlier fruiting variety like Osage or Ouachita (3-4ft spacing) and you will have a longer period of blackberry production and avoid SWD on the earlier varieties.
- There are newer varieties of red raspberry that are superior to Heritage. Both Prelude and Caroline would be very good choices for red raspberries.

As for the varieties, this is only the first batch, this fall planting. I've had some of them for years, but got neglected and lost in the weeds. Some are from the same vendor where I purchased some fruit trees. But they do not have much new varieties.

I'll order all the grapevines and a couple of more berry plants this spring. Then I'll do some comparison and may use some for fresh eating and some for baking and drink etc. I may open another small area for experimenting. But 10 berry plants should be enough for personal use.

The TC can be spaced at 5 feet, just do more pruning or overlap the laterals for higher production.

I'm thinking of spacing the blackberries 5.5' and the raspberries 4.5'.

I'm thinking about pouring some concrete mix at the foot of the end posts instead of the anchoring support. This way, I can save some footage of the bed?