Hardwood Defect Guides

The Wisconsin Forestry Center is developing photographic guides to defects in hardwood tree species. The guides are intended as a resource to assist foresters in understanding the impacts of externally visible defects on internal conditions in a tree. Understanding the impact of external defects on the quality of lumber inside a tree is of prime importance for foresters when developing stand prescriptions and marking timber. The Foresters’ Photographic Guide to Stem Defects in Hard Maple was published in 2023, and a guide to defects in red oak is underway, with publishing planned for 2024.

Order the Maple Defect Guide!

PHOTOGRAPHIC GUIDE TO DEFECTS IN HARD MAPLE

Hard maple represents both one of the highest volume and highest value timber species in the Lake States. The 55-page maple defect guide features full-color photos depicting how a defect moves through a log, board-by-board. The guide describes wound response in trees and documents the impacts from the following types of defects: butt defects, cavities, tearouts, maple borer, bird peck, included bark, seams, epicormic sprouts, and remnant branches. Each defect is depicted with images of the tree’s exterior as well as how the defect appears on milled boards.

ORDER THE GUIDE

Cost: $20/each. Free shipping!

Discounted price of $18/each available for Wisconsin SFI members. Please list your organization in your order information.

How to Order:

Order online.
Or send this fillable order form along with check payment to:

Wisconsin Forestry Center
Attn: Maple Defect Guide
800 Reserve St.
UW-Stevens Point
Stevens Point, WI 54481

PROJECT PARTNERS

This publication was made possible through support from the following entities:

Hardwood Defect Guides