Bay Window Roof - Rafter Framing Calculator

Strong Built Establishments Builders

SBE Builders is a commercial and residential framing contractor located in Discovery Bay California. Our Systematic Construction Logic produces Strong Built Establishments. E-Defense stands for Earthquake-Defense. Is your building ready for the next Earthquake?

Equal Pitch Bay Window Rafter Chart Generator v1.0

B	Feet		Inches

F	Feet		Inches

R	Feet		Inches

show results in feet & inches

results are show below in the IFrame window

This bay window rafter script will print out a chart of all rafter lengths and angles for the baywindow. The starting pitch is 3/12 and the ending pitch is 16/12.
baywindow_html_table.pl source code for perl script that generates these baywindow calculations

Auto Generated Rafter Tables for Equal Pitch Bay Window Roof with 45� wall angles

45� wall with projection = 24''
45� wall with projection = 28''
45� wall with projection = 32''
45� wall with projection = 36''
45� wall with projection = 42''
45� wall with projection = 48''

SBE Builders
5305 Laguna Ct.
Discovery Bay, California 94505
(925) 634-6022 • Fax: (925) 634-6022

Commercial & Residential Framing Contractor
Build it Green Framing Contractor
American Carpenter and Builder
Licensed Building Contractor
CA LIC.# 546126

Roof Framing Geometry

Roof framing geometry is empirical-type knowledge.
Information gained by means of observation, experience, or experiment.
From ground Line 0: Z1, Z2, Z3 etc...
To Roof Axis 0: A1, A2, A3 etc...
To the bring back line 0 for scribing: B1, B2, B3 etc...

Carpenters Of Steel

Canadian & American Geometric Roof Framing Development
using a Steel Framing Square

Geometric Roof Framing Development for Irregular Hip Roof Calculations
using a Steel Framing Square

Geometric Development of Tetrahedron
using a Steel Framing Square

Hip Rafter Backing Bevel Angles from 1830 to 2009

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