8-Inch High Profile Spring Coil Mattress Foundation - Sturdy Wood Structure & Easy Assembly Box Spring for California King Bed - Black | Perfect for Bedroom, Guest Room & Dormitory Use

The frame is solid and fairly easy to put together. Extra parts were supplied. Cover was not the same as depicted in the picture. The frame does not make any sounds (squeaks) when moving on the bed. I was able to assemble and install by myself, although it wasn't super easy.Has quite a lot of screws, but goes together pretty easily with a screw gun (for the slats) and included wrench (for the frame). Looked really good when we got it together. Very sturdy. I have it under our Novaform Comfort Grande Plus gel memory foam mattress. The spacing of the slats are perfect for our memory foam mattress, and there are no sags or anything. It's a bit of a shame that the bed frame completely hides this mattress foundation, since it looks really nice with the included cloth covering.Ordered two of these, XL Twin. The packaging is even marked "XL Twin" (see instruction manual photo). Started to put the first together and realized that it was missing the center support and figured out that this was not an XL Twin. I did not need these right away, so I did not take them out of the package until the return date was past. This is disappointing.The item came damaged and was not able to build it due to it.It’s really heavy and easy to assemble