Bi Folding Garage doors ( infact the same applies to Bi Folding Gates) are the perfect solution to smaller areas. The concertina design allows the gates to open where there is not enough room to swing open a full sized door or if the ground slopes and a full sized door is likely to catch on the ground.
Made to measure doors for garages in any glazed or solid style.
Available in Douglas Fir as shown here or a variety of Hardwoods.
The picture here shows the central leaves open,
these will fold back on to the outer leaves which
in turn will open outwards.