Roof And Stairway Layout Tables

How to use a framing square and its etched on tables to figure out roof slope rafter lengths.

Roof and stairway layout tables.

Offering numerous custom design options our trusses present an economical and struc turally superior method for rapid erection. Mitek trusses provide more design flexibility inside and out than con ventional framing. The swanson little blue book for roof and stairway layout includes detailed instructions and helpful charts showing how to measure scribe make cuts and more with your swanson speed square or big 12 speed square. Running measurements vertically lower floor to top of each tread possible landing heights blue middle to calculate and display upper floor opening and stair head room enter upper floor thickness check the show head room check box and drag the head slider to calculate and animate diagram head room and floor opening.

This 60 page book has what is needed to get the job done accurately. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. Free online plans are also available for patio covers outdoor showers decks picnic tables benches bars birdhouses and many other carpentry and woodworking projects. The little blue book for roof and stairway layout includes detailed instructions on how to use the speed square and big 12 speed square using the one number method sm for roof layout.

A carpenter s framing square includes tables stamped right into the tool itself. Chapter 3 design loads for residential buildings typical load combinations used for the design of table 3 1 components and systems1 component or system foundation wall gravity and soil lateral loads headers girders joists interior load bearing walls and columns footings gravity loads exterior load bearing walls and. Try out the free online carpentry tools like the stair calculator roof pitch calculator and the span tables for joists and rafters. Professional tradesmen rely on accurate measurements.

2 roof floor truss manual 7 31 08 10 43 am page 4. This article explains how to make quick use of a framing square and its imprinted data to get some basic roof measurement data like roof pitch or slope rafter lengths and end cuts. Save time determining the right measurements for your rafters by using the swanson one number method. A carpenter s framing square includes some tables stamped right into the tool itself.

A framing square is a lot more than a simple square cut saw guide. This simple device is crammed with tables data and tricks that allow a carpenter to lay out roof rafters stairs or other building features.