The installation of built-in fitments to new buildings largely involves selecting suitable factory-made units, levelling them and setting them into place. Many old cottages ripe for modernisation, although solidly-built, seem to have been erected with the minimum use of the plumb-bob and spirit-level. The rest of the drawings illustrate minor fitments common to domestic buildings. Complete sets of special tools and accessories are available for converting the panels into various types of furniture and fitments, all constructions being completely box-like in design. The units are squared off to length and jointed at the angle with two-way brackets designed to drive tight into the hollow ends. The opening is fitted with a lining, as for an internal door, with an architrave mould covering the plaster joint on the inner face. The door slides between pulley stiles which must be twice its height.