RecRoomLab: The Hobby-Room Clearance Guide

Field notes

The site sorts recreational equipment by room size, using tatami-count categories from 4.5 through 12 mats. Its article descriptions distinguish an item's footprint from the surrounding clearance needed to play, then extend the calculation to multiple installations, delivery routes, noise, floor load, and building rules. Examples include a 10-tatami room estimated at 16.2 square metres, a 12-tatami room at 19.4 square metres, and a review of the AMOS JP-DG automatic mahjong table priced around ¥198,000.