Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Can two shelves be connected to make a bigger rack? I have way more spices than these will fit.
Document: The picture of the item makes it seem like these are for small bottles. For the most part that is the way to go if you can, but this fit plenty of bigger bottles without issue. I purchased two and put them right next to each other on the wall. They look great and they are solid.
My bigger jars (garlic salt, adobo, parsley flakes) fit on the top, the bottom two shelves will fit your small-med jars. I installed this myself, with no drill, just my own two hands and a screw driver. Its very sturdy, and it looks so nice in my kitchen...def not cheap looking. I love it!
I Cook...alot. I know my way around a kitchen and I know what sucks and what doesnt. This is a fantastic buy for the price.This thing is rather Attractive. I like that you can match several of them together and make them look in unison. Its much sturdier than other reviews have claimed and i have no problem with larger sized spices on the lower shelves. It came with plenty of mounting hardware too.
I like it but it could be a little bigger. I'm not able to fit all of my spices in because the shelves are too close together.
It's annoying because I have a small apartment and only one cabinet for everything, spices and dishes included. So every inch counts. But I can fit some of the bigger bottles on it, so it's a good trade-off. I combined it with one of those 3-step shelves from Target and I get a little extra room...which was filled up right away.Did I mention it looks great, too? The chrome is a nice touch, goes well with my wood doors.
Awesome product! I wish I had space for two of them. It totally freed up space in my cabinet and is so much easier to find the spices I need. I was worried it looked plan in picture, but in reality it looks very sharp! I researched alot and the measurements were bigger then others so I chose this one. I was right it has a ton of Space! You can fit small or large spices and I can even fit some small box items that I use regularly.
We got two of these, and I just ordered the third (we have way too many spices)! They fit nicely on the pantry door, all the spices are in clear view and well organized. All different spice box sizes fit just fine!I love it!
This is a great spice rack! It's the perfect depth, as larger spice containers easily fit. I bought two and mounted them to the inside of my kitchen pantry, one on top of the other. NOTE: Don't use sheet rock hollow wall anchors to mount into hollow doors! I tore a big hole in mine trying to do so. They have special anchors for hollow doors ... make sure you get them! They're not expensive and make mounting on a hollow door much easier.
I didn't realize when I bought this rack that the spice bottles would make a racket because the shelves are metal. I have another spice rack that has coated shelves & it's much quieter. It does hold a lot of spices though & fits very nicely on the pantry door.
I have big spices that don't fit in there because they are very tall and wide, but I prefer to hide those inside the cabinet since they're not pretty looking. Medium to smaller spices fit well in this rack and look nice, too. I've had no problems with it. I've owned it since FEB 2011.REMINDER: check the dimensions to see if this is the size of rack you want. I noticed negative reviews complained that they assumed it was bigger because of the pictures.
Answer: I bought 4 of them, and I have them hanging vertically on a long wall, one under the other.  They are very sturdy and a nice chrome finish. They are designed to be screwed onto the wall so you cannot connect them. I installed them on hooks attached to the wall, this way I can move a whole rack to where I want it (the barbecue area) or remove easily for cleaning. Hope this is helpful.