AWS EDITION 1, 2009

169

© 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 7 - Stairwork & Rails (Page 16 of 16)

COMPLIANCE

7 FABRICATED and INSTALLED woodwork shall: (continued)

7.1 SMOOTHNESS of exposed surfaces (continued)

7.1.2 SANDING is checked for compliance by sanding a sample piece of the same species with the required grit of

abrasive.

7.1.2.1 Observation with a hand lens of the prepared sample and the material in question will offer a

comparison of the scratch marks of the abrasive grit.

7.1.2.2 Reasonable assessment of the performance of the finished product will be weighed against absolute

compliance with the standard.

7.1.2.3 A product is sanded sufficiently smooth when knife cuts are removed and any remaining sanding

marks are or will be concealed by applied finishing coats.

7.1.2.4 Handling marks and/or grain raising due to moisture or humidity in excess of the ranges set forth in

this standard shall not be considered a defect.

7.2 GAPS, FLUSHNESS, FLATNESS, and ALIGNMENT of product and installation:

7.2.1 Maximum gaps between exposed components shall be tested with a feeler gauge at points designed to join

where members contact or touch.

7.2.2 Joint length shall be measured with a ruler with minimum 1/16” (1 mm) divisions and calculations made

accordingly.

7.2.3 Reasonable assessment of the performance of the finished product will be weighed against absolute compliance

with the standards.

7.2.4 The following is intended to provide examples of how and where compliance testing is measured:

B

A

C

D

A F

F

E

E

Measured on the concave face

A - Gaps when surfaces are mitered or butted

B - Gaps when parallel pieces are joined

C - Gaps when edges are mitered or butted

D - Flushness between two surfaces

E - Flatness of panel product

F - Flushness of edgebanding

7