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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Building Questions >> Floor levels for integral V.SMALL garage/ store https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1510389161 Message started by tibby99cat on Nov 11^th, 2017, 8:32am

Title: Floor levels for integral V.SMALL garage/ store
Post by tibby99cat on Nov 11^th, 2017, 8:32am

What do we need to do, if anything? We have an extension (soon to be completed). The shell was built by the builder and we are managing the internal bits. The brief was to build our double story extension with a front store/garage which although small for a garage at 3.2 x 3m, it's ample storage and one day will be converted into further living space. It's been built in exactly the same way as the rest of the build with double cavity and insulation. It connects into a playroom which then connects into our home. I know we need a fire door to connect the two but my question reflects the 100mm step down or slope required in a garage. Do we need this as I want to keep my floor levels marrying up for our future conversion. I would be open to an upstand in the door threshold but do we need this if the store isn't even big enough for a car. One day when we have the money we will build a separate storage area and convert the current space into an office.

Title: Re: Floor levels for integral V.SMALL garage/ store
Post by woodsmith on Nov 12^th, 2017, 9:54am

This should be detailed on the plans and is ultimately up to the building control officer. If it's a garage then you need a sill or change of floor level to prevent a flammable liquid from spreading from the garage into the house, if it's a store room you may well not need one. If you are forced to make a sill just cast one in concrete in a way that it can be easily knocked out if you want to change use in the future.