This post covers my build of Finger and Toe Models' Multi-Story [sic] Warehouse which is available to download from Wargames Vault at (time of typing) for £2.40.
Ironclad Miniatures' 28mm Tobias miniature in front to give an idea of the building's size. Also, the pavement (US: sidewalk) surrounding the building is not part of the building; it is from Grekwood Miniatures' 28mm Residential Roads pdf (IMO the best representation of UK pavements I've got).
The building was made with 5mm foamcore for the walls and base; the roof and interior 'floors' from 2mm mounting board.
As is my (now) usual practice, I've removed all the doors and windows from the building - it does come with them! The building itself is - as the title claims - multi-storEy; it has parts for a ground level, what it calls upper story [sic] and then a top story [sic]. This enables you to have as many 'upper' storeys as you might want and they are designed in the model to be removable, but for my build I've fixed them all together and only used the one upper storey.
As the building is designed to have its interior used, it does come with interior surfaces, has a staircase model included and even has 2 pages of alternate doors and windows! There are storey 'connectors' that will disguise the join if you made a disassembling version of the building, but as I haven't, I've not used them.
Given its modular nature, it would be relatively easy to make a taller and/or wider version of this building. At £2.40, the versatility of this model is, IMO, good value.