The mammoth workshop is true to its name in both build and size the range extends from the smallest but still sizeable 10x10 to the absolutely epic 30x12 model each mammoth workshop is made to order by the factory just for you the modular nature of the side panels allows you to decide where the doors and windows are positioned in order to make best use of your garden and the available light double door access allows plenty of space to enter and exit with whatever you need there is plent