AWS EDITION 1, 2009

132

© 2009, AWI, AWMAC, WI - Architectural Woodwork Standards - 1st Edition, October 1, 2009

As may be updated by errata at http://www.awinet.org, http://www.awmac.com, or http://www.woodworkinstitute.com/awserrata/

Section 6 - Interior & Exterior Millwork (Page 11 of 31)

PRODUCT

MATERIAL, MACHINING, AND ASSEMBLY RULES (continued)

DESCRIPTION E C P

4.2

M A T E R I A L 

MATERIAL

4.2.1 Shall be lumber or sheet products of the species and Grade specified.

4.2.2 Shall conform in finish width, thickness, and length of lumber to Section 3.

4.2.3

Shall not have defects, either natural or manufactured, that exceed those permitted.

4.2.3.1 Permits unlimited finger-joints. M

4.2.4 Requires plain-sawn lumber.

4.2.5 Permits defects, both natural and manufactured, if covered by adjoining members or otherwise concealed when

installed.

4.2.6 States figure is not a function of a species grade and must be specified in the contract document.

4.2.7 Permits warp that can be held flat and straight with normal attachment.

4.2.8

R A D I U S

Requires radiused woodwork to be constructed of solid-machined, block-laminated, laminated plies, core-

veneered, or kerfed solid stock:

Solid-machined Block-laminated Laminated Plies Core-veneered Kerfed Solid Stock

4.2.8.1 CHORD SEGMENTATION is not permitted.

4.2.8.2 Members of solid stock or block laminations shall be furnished in such sections as to avoid pronounced cross grain and reduce joints to a minimum.

4.2.8.3 GLUE shall be selected for color to avoid a prominent glue line.

4.2.9

E X P O S E D S R F A C E S 

At EXPOSED SURFACES:

4.2.9.1 Requires end grain be kept to a minimum. MM

4.2.9.2

Requires ends be self-returned with no end grain showing.

M

4.2.9.3 Permits medium-density fiberboard (MDF) for opaque finish.

4.2.9.4 Requires sheet-product edges to be banded with the same species as the face. MM

4.2.9.5 Requires plain-sliced veneer for transparent finish.

4.2.9.6 Permits mill-option veneer for opaque finish.

4.2.9.7

T R A N S P A R E N T 

For TRANSPARENT FINISH:

4.2.9.7.1 Permits hardwood or softwood. M

4.2.9.7.2 Permits only one species for the entire project. MM

4.2.9.7.3 Prohibits finger joints. MM

4.2.9.7.4 Requires adhesive, used for laminating, to be selected for color to avoid

a prominent glue line.

MM

4.2.9.7.5 Requires lumber (including block segments or veneer of laminated

material) and sheet products to be compatible in color and grain.

M

4.2.9.7.6

Requires lumber (including block segments or veneer of laminated

material) to be well-matched for color and grain; sheet products shall be

compatible in color with solid stock, and adjacent sheet products shall be

well-matched for color and grain.

M

4.2.9.7.7

Requires INTERSECTIONS of radius and straight members to be

splined or half-lapped, securely glued, and mechanically fastened. MM

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