Introduction to FPS Workshop

April 17-18, 2024 (In-person only)

Double Tree Hotel | 1000 NE Multnomah St, Portland, OR 97232


The 2024 Introduction to FPS Workshop presented by the Forest Biometrics Research Institute will be held April 17-18, in Portland, OR. This workshop will focus on utilizing FPS in the management of your forest lands. Participants are strongly encouraged to bring their computers (with FPS) to this workshop as it will be organized so that attendees can follow the topics and use FPS to participate in a hands-on environment. (Laptops will not be provided at the workshop.) The instructors will be: Dan Opalach, FBRI Senior Forest Biometrician and Brock Purvis, FBRI Technical support.

If you do not have FPS on your computer, please contact Brock Purvis before April 8, 2024 at (406) 541-0054 or by email for assistance.

The registration fee is $675 for FBRI members and $850 for non-members.

This workshop will cover these key topics:

April 17, 2024

9:00am – 5:00pm

Fundamentals of Cruise Design

An overview of FBRI’s standard procedures for conducting a timber cruise will be provided and cover plot intensity, trees per plot, subsampling, the relevance of specific measurements, and the differences between cruising for inventory versus cruising for a timber sale. In addition, a discussion regarding how FPS implements defect by thirds of a tree and whether the big BAF method may or may not be right for you.

FPS File Structure

Discuss standard operating procedures on managing FPS and its file structure. This will include how to determine what version you have, best practices on how to install a “new” version, how to switch between versions, how to update with a new Activation Key, and what the FPS Start button really does.

FPS Table Review

Participants will be provided with an overview of the required table structures for compiling, expanding, and growing stands in FPS. This will include a full review of the Admin, Cruise, and Plots Tables.

Cruise data into FPS

A review of the required format for loading cruise data into FPS and what columns in the Admin, Cruise, and Plot Table must be populated.


Using a standardized database (provided at workshop), attendees will run the cruise compiler and review the associated output tables. In addition, the Cruise Report will be introduced, and the outputs discussed. Additional reports with emphasis on the Standard Error reports will be reviewed and discussed.

Class Table

Review the Class Table settings and how it relates to the Habitat Table and the Admin Table.

What the Log Size and Log Rules Mean for You

FPS will be used to provide examples regarding the differences in reportable volume based on how the Species and Sorts Tables are set up. Additionally, the relationship between the Species, Sorts, and DIBCLS tables will be reviewed.

Growing Stand(s) to Current Year

Using the compiled database FBRI will provide step-by-step instructions for growing all stands to a common report year.

Site Index – Methods to Calculate and its Importance

An overview of FBRI’s recommended procedures for estimating Site Index will be provided which will cover the FPS SiteGrid, FPS compiler supplied site index, and optional integration of Jim King’s / Robert Monserud site index into FPS. Additionally, Lidar derived site index methods will be discussed.


A discussion of the cruise expansion process including the significance of vegetation labels and the role they play in FPS and using FPS to expand cruised stands into uncruised stands for a working forest inventory.

Selecting Stands for Annual Inventory

Using FPS, FBRI will provide step-by-step instructions with the goal of assisting natural resource staff in selecting stands for future inventory and how the FPS ↔ GIS connection enables the transfer of future inventory stands to be visually (spatially) displayed. Additionally, the process in which FPS selects stands and the rationale used within the process will be discussed.

Best Management Practices for updating Old Cruises with New Cruises

Strategies for bringing “new” cruises into FPS will be discussed. In addition, examples on how to maintain old cruise data along with new cruise data in FPS will be provided.


April 18, 2024

8:00am – 3:00pm

Incorporating Census Level Data into FPS

FBRI will provide an overview for using census level inventory data in FPS. This discussion will include specific recommendations on how to set up an FPS database to properly process the data as well as address some of the challenges we have seen, including steps to take and steps to avoid.

Top Tips for Managing Dead Trees and Snags

FBRI will review how FPS currently handles dead trees and snags and demonstrate some alternatives in the way these trees can be managed.

How to implement a plantation in FPS when no cruise data is available

Using FPS, FBRI will provide step-by-step instructions on how to input a planted stand without cruise data.

Annual Depletion Reporting

The methodology and standard operating procedures for tracking annual growth and depletions will be provided.

The Silvics, Schedule, and Stand Tables

FBRI will lead a discussion on the relationship between these tables and what role each plays when implementing silviculture prescriptions over time. In addition, early stand development will be reviewed to see what effect the Origin column in conjunction with the Silvics table has on initial tree growth and mortality.

Treatments vs Regimes

The difference between treatments and regimes when planning silviculture prescriptions, and why it is an important distinction. Utilizing the Silvics Table to define treatments and regimes within FPS. Using FPS to analyze the effect of different silviculture treatments. This will include discussion on what to consider when timing silviculture activity and how it can influence the future of a stand.

A Beginners Guide to Forest Planning

FBRI will lead a discussion on even-aged silviculture regimes for long-term forest planning and harvest scheduling. The Yield Species and Yield tables will be discussed and populated for use with even-aged regimes. Additionally, an overview of the Schedule Table outlining the relationship it has on reporting periods and future available harvestable volume will be discussed.

Running the Harvest Scheduler

The FPS Harvest Scheduler will be utilized in conjunction with the growth projections to develop a long-term harvest plan.