This is an interesting and potentially very useful approach to map/plan making... an array of components to create your own floorplan of a large house, a mansion even. Note 'plan' - this is not a tool for making a battlemap, but one for creating floorplans draftsman style.
Unless you happen to be a draftsman (and I used to have a GM who was, his maps and floorplans were always outstanding!) you normally have the choice of a purchased product which may not be exactly what you want or drawing your own as well as you can. Whilst the advent of computers and the internet have made life easier (especially if you run contemporary games - just raid a real estate/estate agent site) and mapping programs are available for house design and even specialised game mapping, these can still leave you with not quite what you wanted.
Here, in a single sheet, are all the components that would be used in drawing a floorplan of a goodly-sized house. Pick out the bits you want or use the simple d6 system provided to create a more random plan. Or combine the two, rolling dice but picking alternates if you don't think what the dice come up with looks right.
Being precisely to scale, you can enlarge everything to whatever scale you want so if it is a battlemap you are after...