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While the predetermined sizes
for the recoverable cuttings in these grades have evolved from the standard sizes used for U.S. joinery
components, there is always flexibility in how small, clear cuttings can be recovered from a larger piece. Consequently, in the international marketplace, the sizes of the cuttings to be recovered from Factory and Shop timber are often adjusted to meet the requirements of particular remanufacturing needs.
Remanufacturing timber is usually sold in random widths from 102 to 635 mm, random lengths from 1.8
to 6.1 metres, and in thicknesses from 25 to 102 mm. Standard sizes are shown in
Table 3. Applications for door and sash cuttings are shown in Figures
1 and 2.
WCLIB and WWPA product categories and grades include:
Moulding Stock – applies to all species, all widths and thicknesses, and defines timber suitable for ripping into strips 25 mm and wider, 3 metres and longer for making mouldings.
Shop Timber (WWPA & WCLIB) – applies to all species and thicknesses, graded with reference to the percentage of area in the piece that is recoverable in cuttings for use in window sash and door parts. Two quality levels are recognized in the cuttings, No. 1 and No. 2. Specific grades are:
Factory Select - No. 3 Clear (WWPA), Select (WCLIB) and
Nos. 1,
2, and 3 Shop.
Door Stock (WCLIB) – applies to all species except cedar in stock 29 mm and thicker, graded for percentage of area in each piece recoverable in cuttings to be used as stiles and rails for door parts and muntins (or mullions) for window parts. Three levels of quality are recognized for the cuttings, Nos. 1, 2 and 3. Specific grades include the following and may be specified vertical grain (VG):
Factory Select
and
Nos. 1,
2, and 3 Shop.
Flush Door Stock (WWPA) – includes products in Douglas fir
and Hem-Fir which are 29 mm and thicker intended for use in the manufacture of flush-type doors to be covered with veneer. Specific
grades are:
Factory Select (No. 3 Clear) and
Nos. 1, 2, and 3 Shop.
Jamb and Head Stock (WWPA)
– finished rough or smooth, in all species, 29 mm and thicker, 102 to 203 mm wide, graded for the recovery of cuttings suitable for manufacture into door jambs and component parts. Cuttings will include Sides, Heads, Moulding Rips and finger-joint material in predetermined sizes. Stock may be flat, vertical or mixed grain; usually to be resawn. Specific grades include:
Clear Door
Factory Select and
Nos. 1, 2 and 3.
Redwood remanufacturing grades are ideal for doors, windows, furniture and a variety of other remanufacturing applications for outdoor installations where a durable species is preferred, or for interior applications to showcase the beauty of the wood. Products include:
Factory Select (RIS) – a premium quality cutting grade that will produce
Clear All Heart or Clear with one piece, not more than 305 linear mm, to be cut out. Standard sizes are 19 mm and thicker by 89 to 286 mm wide.
All Heart Factory Select is available only by special contract.
No. 1 Shop (RIS) - a high quality cutting grade that will produce not less than 60%
Clear & BTR cuttings 89 mm and wider by .9 metres and longer. Cuttings must meet grade requirements on one face and two edges.
All Heart Shop is available by special contract.
PLIB’s Export “R” List remanufacturing grades are generally evaluated against grading criteria that limit allowable characteristics rather than establishing a percentage of recoverable cuttings in predetermined sizes. The
Clears are well suited to any remanufacturing application requiring the highest possible quality
and appearance, e.g. furniture, cabinets, windows, doors, trim, etc.
Merchantable grades allow for knots and other characteristics with the highest grades being well manufactured and suitable for high-end
construction purposes; the lowest grade, a 3 Common, is appropriate for more casual applications
where unsound or loose knots are acceptable.
PLIB Export “R” List remanufacturing grades include:
Clears – separated into three special grades of vertical or random grain with grades determined by number and size of irregularities permitted and number of annual growth rings (in the two highest grades). Allowable characteristics vary with three thickness categories.
Specific grades include:
No. 2
Clear
No. 3 Clear
No. 4
Clear
Merchantable - separated into four special grades determined by allowable characteristics for knots and imperfections varying with four thickness categories. Specific grades include:
Selected Merchantable
No. 1
Merchantable
No. 2 Merchantable
No. 3 Common
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