We will be going over how to do a king post truss on a shed with a 4 12 roof but it can be done on any type of pitch.
Make post for roof.
You don t want your new patio roof to look out of proportion with the rest of your home.
Just adjust quantities accordingly.
Even better is a pole foundation where your posts are embedded deep in the ground about 4 and transfer the full weight of the building directly underground.
These structures can look large and imposing.
Beams can be solid lumber or be built from lengths of 2 by lumber nailed together with 1 2 inch pressure treated plywood spacers in between this forms a 3 1 2 inch thick beam that is equal to the width of a 4 by post.
King posts also appear in gothic revival architecture queen anne style architecture and occasionally in.
A 4 12 roof is around 19 degrees.
Outline the post locations by tracing around the end cuts of the posts.
Apart to get the right locations to conform with the beams above.
There are many many ways of designing and constructing a post frame building so this guide will only show a few examples of common post frame construction.
King posts were used in timber framed roof construction in roman buildings and in medieval architecture in buildings such as parish churches and tithe barns the oldest surviving roof truss in the world is a king post truss in saint catherine s monastery egypt built between 548 and 565.
Building a 2 post louvered deck roof 10 x 8 x 8 this plan for a louvered deck roof can be altered to fit your needed size.
The best roof shape for a high wind area would be a hip roof but it s more expensive to construct than a traditional gable roof a common roof for sheds.
A run of 12 12 is a 45 degree angle.
Plan your pergola carefully.
A modified post and beam will work with pier perimeter wall and slab.
For a traditional look you can build yours out of wood.
Post frame buildings use load bearing post to support the roof system rather than the traditional 2x stud framing like you may find used on a house.
Post caps and beams.
Before framing the roof make sure the posts and their installation meet the structural requirements set by the local building code.
In terms of roof covering standing seam metal roof would be the best option in terms of strength and durability but you could also go with architectural shingles light color roof designed to reflect solar radiant heat and stand up to.
And don t forget to look at howie s tips at the bottom of the page he always offers great insights.
Choose the right truss type.
This is crucial for the roof framing to align.
Many building codes do not allow a roof on a shed to be less than 3 12 as flatter roofs are more prone to leaks and snow damage.
Space between the inner and outer columns.
