Sage Full Bunky Board

Solid -flat

Yes and yes!!!

The bed I used it on has a frame for the slats on the sides. The bunky board lays on the frame rather than the slats. The slats are still there for additional support. I am not sure if this answers your question although it seemed pretty sturdy.

Yes one solid piece, white/gray...ours was delivered in a week.

Queen size was one piece. Fit on top of my car. I tied it on and drove slow. The store is not allowed to tied it to your car- I think for insurance reasons but they do supply rope for it.

I believe so but what i did is i went to home depot and actually bought a piece of plywood and had them assist me to cut to fit full bed frame and to lay on top of wood side boards and or the metal frame with legs. Then lay the bunky board and then the matress. There is no need for the boxspring. It will give it a low profile bed look. Perfect for toddlers and small children under 8.

Yes- That was my sole purpose. Make sure you measure the frame and compare it to the board. The one I purchased was a perfect fit. The bed frame is wood and our concern was that it would not reach the edges of the bed where there is solid support rather than lie on the cross boards. We used it o reduce the height of the bed and it worked perfectly. I had never heard of this bunky board until we purchased a bed with drawers under it for my son. If he had a regular box spring the bed would have been chest high for me. I have now bought a second one for my mother because she is elderly and her bed is too high to be comfortable getting in or out. She has noticed no difference between the board and the box spring.

Bunky board is good for kid's beds because it lowers the height of the bed if the mattress is not greater than 9 inches. I think that is their only purpose because not as functional as a standard box spring. Having said that, it suffices for support of any mattress on kid's beds. Although, memory foam is really heavy and does not have springs so I do not know. I would guess if kid is less than 80 lbs all is good for support. Trundles with solid bottoms or tight springs usually provide enough support for a good mattress. No need for bunky, but again the issue is lack of springs on memory foam, so do not know. Anyone else have this configuration???

Don't know but it was an easy carry for my husband and I . It was easier to carry than a mattress or box spring , lighter and not bulky

It is one rigid piece. I tied it to the roof of my car, (Tahoe). It was the queen size. The store for insurance reasons will not tie any furniture to your car although they will supply the rope. I did not have to travel very far so I was comfortable with that.