My telescope are housed in domes supplied by Telescope House in London. One is 8ft wide and 8ft high from Sky Domes and the Pulsar Dome is 7ft, both sit on a concrete base. I can use a flat concrete pad because vibrations are not a problem because I operate the telescope remotely.
The 8' dome from Sky
Domes is supplied in pieces and must
be assembled. If you are going to assemble it yourself which is
what we did, be prepared to help the driver unload the dome. When
it comes to assembly, we often needed three people and when it
came to lifting the dome onto the structure, a minimum of 4 people
is required.
The dome makes observing very easy. The shutter is easily pushed back with a boat hook (you need to replace the flimsy one that is supplied) Sometimes the dome can be a bit stiff to turn but its not that difficult.
There is power to the dome which houses a 7" TMB on a Paramount ME and a PC which drives my CCD camera, an SBIG ST10XME. I also have a Astro-Physics 4.75" Refractor and a Takahashi FS60. There is a computer network from the house to the dome so that I can control the telescope from within the house. Both of my PC's are running Windows 2000 and connected via a 100mb TCP/IP network. The network cable has been placed inside a hose pipe and either runs along the fence or is buried under the ground at certain points. I use PCAnywhere v11 to remotely control the telescope from inside the house.
Dome #2 is from Pulsar Optical and is 7ft. It is supplied complete and moves very easily.