Online Tools for Commercial and Residential Framing

SBE Builders Roof Framing Online Tools & Calculators

Chappell Master Framing Square Review
The only Stainless Steel framing square Made in USA

Tangent Hand Railing Trigonometric Development

Tangent Handrailing Section Planes and Tetrahedron Angles

Developments of Hip and Valley Roof Angles based on the Roof Lines , by Joe Bartok

Compound Saw Miter and Saw Blade Bevel angles for building the 5 Platonic Solids out of wood
Wood polyhedron or Wooden Polyhedra
The 5 Platonic solids:
The Tetrahedron (3 equilateral triangles at each vertex)
The Hexahedron (3 squares at each vertex, cube)
The Octahedron (4 equilateral triangles at each vertex)
The Dodecahedron (3 pentagons at each vertex)
The Icosahedron (5 equilateral triangles at each vertex)

Compound Saw Miter and Saw Blade Bevel Angles For Platonic Solids Calculator

Archimedean Solids with Jack Rafter Side Cut Angles & Hip Rafter Backing Angles & Dihedral Angles
For Compound Miter Saw Settings (Dihedral Angle + Hip Rafter Backing Angle + Hip Rafter Backing Angle= 180°) Enter Jack Rafter Side Cut Angle and Hip Rafter Backing Angle at this URL below for compound Miter Saw Settings for compound joinery of Archimedean Solids.

Platonic Solids or Archimedeans Solids Tetrahedron Geometric Development Calculator

Tetrahedron Jack Rafter Side Cut & Hip Rafter Angle Development Calculator

Hip Rake Wall Calculations For Plan A
Hip Rake Wall Calculations For Plan B
Hip Rake Wall Calculations For Plan C

Use of the Framing Square for Octagonal Roofs
Octagon Framing Square usage: 3:12 Pitch
Octagon Framing Square usage: 4:12 Pitch
Octagon Framing Square usage: 5:12 Pitch
Octagon Framing Square usage: 6:12 Pitch
Octagon Framing Square usage: 7:12 Pitch
Octagon Framing Square usage: 8:12 Pitch
Octagon Framing Square usage: 9:12 Pitch
Octagon Framing Square usage: 10:12 Pitch
Octagon Framing Square usage: 11:12 Pitch
Octagon Framing Square usage: 12:12 Pitch

Polygon Rafter Tables all in one PDF file
Polygon Rafter Tables

Eagle Square Manufacturing Co., (South Shaftsbury, Vt.),the Octagon Framing Square that real roofers used !
Eagle Framing Square -- invented in 1814

HAWES PAT
Silas Hawes made squares in Shaftsbury, VT, 1814 - 1828, but that several other local makers also marked their squares "HAWES PAT". These were predecessors to the famous Eagle Square Co. organized in 1859. A fine example of a used hand forged, hand stamped square of the early days of the republic.

Picture of Eagle Octagon Framing Square
Picture of similar Octagon Framing Square

A lesson in Applied Geometry and Euclidean Geometry

Medieval Gothic Cathedral Table

Medieval Gothic Cathedral Elliptical Cross Vault Drawings
Medieval vaulting research links, keywords

Treatise On Those Parts of Geometry Needed by Craftsmen

Compound Miter and Bevel Calculator, To cut compound angles on the edge of the material instead of laying flat in the compound miter saw

Hopper Miter and Saw Bevel Angles Calculator

Martindale's Bin and Hopper Angles Case Study 3
Bevel angles for three dimensional connections: Tapered bin, hopper & tower corner angles : hip and valley roof framing connections : analytic proof of ... of hip & valley bevel connection angles

Bosch DAF220K Miter finder Digital Angle Finder Helper
This script will return crown molding miter and bevel settings for the given corner angle. It is not for checking the Bosch DAF220K Miter finder Digital Angle Finder, it is to check the user's ability to use the Bosch DAF220K Miter finder Digital Angle Finder correctly.

Elliptical Hip Rafter Calculations For X Axis Plotting
for radius rafter tails
Curved Hip Rafters and Flared Eaves that are common on Witched Gambrel houses, Dutch Colonial, Flemish Colonial and French Huguenot Colonial houses. Also, on Mansard roofs from France that had a eave kick out.
"coyautage" in French or flying gutter by the Flemish.

Eyebrow Roof Dormer Design and Geometry
based on Billy's Dillons Eyebrow Roof Dormer Class

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

Roof Framing Kernel drawing for visualization posterboard cut out model

Roof Framing Kernel drawing for visualization posterboard cut out model with edge fold

Canadian & American Geometric Roof Framing Development Tetrahedron Calculator & DXF File

Tetrahedron
drawings for 8:12 pitch

Tetrahedron
drawings for Crown Molding with 38° Spring Angle

Sloped Frustum of Pyramid Calculations for Polygons or Cones Roof Framing Geometry

Sloped Frustum of Pyramid Calculator

Octagon Roof Framing and Crown Molding Angles Development

Build it Green
Advanced Wall Framing Compliance Calculator

Advanced Rake Wall Framing Compliance Calculator

Hip Roof Framing
Equal Pitch Hip Rafter Calculator

Irregular Hips Geometry
based on Billy Dillon's article in the Sept. 2007 JLC, On Complex Roof Geometry
Irregular Hips Geometry Calculator

Irregular Hips Geometry
based on Joe Fusco's Hip Roof Developmental Geometry
Irregular Hips Geometry Calculator

Irregular Hips Geometry
based on Joe Bartok's Hip Roof Developmental Geometry
Irregular Hips Geometry Calculator

Unequal Pitch Roof With Unequal Height Plate Line Rafters
Unequal Pitch Roof With Unequal Height Plate Line Calculator

Unequal Pitched Roof Gable Rafters
Unequal Pitched Roof Gable Calculator

Hip Roof Developmental Geometry for Polygons

Polygon Geometry Calculator

Development of the 6 Tetrahedrons for Crown Molding Angles

Crown Molding Angles Fully Developed
Trigonometric Crown Angle Formulas for Horizontal Plane Crown Molding Angles
Trigonometric Crown Angle Formulas for Vertical Plane Crown Molding (cathedral/vaulted ceilings/rake gables)Angles