This section is from the book "Modern Buildings, Their Planning, Construction And Equipment Vol2", by G. A. T. Middleton. Also available from Amazon: Modern Buildings.
Enough has already been said respecting the previous trades on the general principles of abstracting, and it will now only be necessary to notice the particular subdivisions of the remaining trades, together with any special points applicable to each.
The Joiner's Bill is usually the longest of any, and more demands are made upon the experience of the Abstractor than in any other trade. The beginner therefore will do well here to take particular heed of the advice previously given as to using plenty of paper, and starting a fresh sheet for each subdivision.
The principal subdivisions of the Joiner's Abstract in their proper order are - "Floors and Skirtings," "Sashes and Frames," "Doors and Framings," "Thicknesses," "Architraves and Mouldings," "Staircases in Deal," "Sundries in Deal," "Attendances."
There are usually many items "written short" in the Joiner's Bill the method of abstracting which has been previously explained.
Start with those of least thickness, and finish all widths of one thickness before starting the next. The mitres, fitted ends, housed ends, etc., should be abstracted with the skirtings to which they apply, and written short in the Bill.
Start with skylights, fanlights, and casements according to thickness; then take the sashes and frames according to thickness and description; all descriptions of one thickness consecutively, starting with the simplest.
Abstract any extra labours on the above items under this heading.
Commence with the doors according to thickness, starting each thickness with the commonest kind. After the doors, abstract the framings in a similar order. Note that cupboard fronts are abstracted here, but the ends, unless framed, should be abstracted under "thicknesses." Any labours on doors and framings should be abstracted under "Sundries."
Under this heading should be abstracted all superficial and lineal items (except framings and mouldings) in various thicknesses of deal, commencing with the "Supers" in the order, first of thickness, then of value, and following with "Runs," in order of thickness first, then of width, and lastly of value, beginning with the least thickness or value in each case. See under "Billing."
Note that both in Abstracting and Billing the least dimension of an item should always come first. The description should read, for example: "1 1/2 by 6 inches twice rebated and twice beaded linings, tongued at angles, including backings," not 6 by 1 1/2 inches twice rebated," etc.
Commence with the least thickness and the various widths of that thickness, starting with the least. The mitres, fitted ends, etc., should be written short in the Bill, and be abstracted accordingly.
Abstract all the items in staircases under this heading, with "Supers," "Runs," and Numbers" in the usual order.
Commence with labours, those of least value first; and follow on with all lineal and numbered items not referable to either of the other headings, adopting generally the rules as to order previously given. See also under "Billing."
These will constitute the last items on the Joiner's Abstract, and are entered as in Fig. 42.