Frame and Truss | Bretts (2022)


Frame and Truss

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Frame and Truss | Bretts (1)

Lateral bracing available now.

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Our production facility uses the very latest Pryda prefabrication systems.

The latest technology enables us to provide a total prefabrication system. Our factory is based on fully integrated software and networked production systems. Our equipment is high-performance, designed and made locally, and from around the world. We offer the highest level of technical support and customer service from our experienced sales, estimating and detailing team.

Our manufacturing operation enables builders to acquire complete house lot packages, including; frame and truss, aluminium windows and doors, fix out hardware and everything else needed to complete the build.

We manufacture: Roof trusses, wall frames, floor trusses, floor cassettes and supply ancillary timber, tie downs and structural steel components.

Case study: Massive trusses made from recycled Timber.

An excellent example of the capacity and versatility of the Bretts Frame & Truss facility.

Frame and Truss | Bretts (2)

Builder - David Ham QA Developments

Engineer - Darryl Robinson & Associates

Project - David's own house

Material - Recycled hardwood from the original Bretts gantry shed at albion

Each truss was handmade from 350mm x 150mm hardwood beams, bolted together using purpose built laser cut plates.

Truss profiles were developed using Pryda software, enabling CAD drawings to be prepared. The recycled timber was then cut on Bretts Hundegger saw and the steel plates laser cut according to CAD drawings supplied by Bretts. Each truss was made in Bretts factory on one of the Quickset truss jigs and took approximately 6 man hours to complete. Due to the extreme weight each component had to be lifted onto the jig by forklift. Once made, two forklifts were required to lift the completed truss out of the jig.

(Video) Difference between truss and frame structure

Frame and Truss | Bretts (3)

Roof trusses.

Pre-fabricated timber roof trusses have been part of Australian building practices for over 30 years, they are: Cost effective, certified and manufactured in accordance with strict Pryda build standards, they have design flexibility, and easy to install.

Long clear spans can be achieved at an economical rate. Trusses can easily span 10-15 metres or more without the need for internal supports. This is particularly useful for ‘open plan’ designed homes. Using such truss types as Scissor Trusses allow for the use of smaller timber sizes, minimal deflections and longer spans.

Individually engineered optimising the timber truss components to suit the design loads applied to them. The manufacturing of trusses optimises timber stock which leads to minimisation of timber waste. There are many home designs which are conducive to roof trusses and deliver an overall cost saving compared to a traditional stick-built roof. However should you prefer a stick frame we will be happy to oblige.

There are stringent requirements associated with the development and use of Pryda’s design software, Prydabuild, which alleviates the need for designers and project engineers to prepare detailed specifications associated with the roof, floor and wall components. Bretts are a licensed Pryda fabricator. Building authorities can often provide building consent based on the documentation supplied by Bretts, without the requirement for independent third party certification, particularly in residential construction.

The Prydabuild system used by Bretts to produce designs and manufacturing specifications for joined and loose timber and steel components in the construction of residential and light commercial and industrial structures. All timber components and connectors are individually designed to suit the specific loading conditions for the structure. Prydabuild has been independently assessed by professional consulting structural engineers for compliance with the Building Code of Australia, BCA 2010, and its referenced documents.

Full documentation is available to support the manufactured trusses.

Design flexibility in most cases can easily accommodate air conditioning units, hot water systems, skylights and other roof features. Trusses can accommodate a variety of architectural specifications – such as coffered ceilings, box gutters and raked ceilings.

Frame and Truss | Bretts (4)

Wall Frames.

Prefabricated timber wall frames offer many of the benefits associated with timber roof trusses.

Manufactured off-site in the Bretts factory at Geebung, using state of the art software and manufacturing equipment. Our frames are delivered to site ready to install with clear installation instructions. The reduced on-site erection times lead to significantly reduced labour costs. Prefabricated frames can also reduce the effect of wet weather delays. Frames are individually detailed and engineered which optimises the timber components to suit the design loads applied to them. Manufacturing of frames optimises timber stock, leading to minimisation of timber waste versus the on-site stick built alternative. However, as with your roof truss requirement, should you rather a stick frame we can accommodate you as well.

As part of a fully engineered system and a licensed Pryda Fabricator, we will ensure that the critical studs, wall plates, lintels (steel or timber) and various tie downs and restraints are designed to support the roof and upper storey loads. More importantly, the ‘right hand is guaranteed to be talking to the left hand’ with one entity (Bretts) overseeing the design and manufacturing of the entire system.

As a Licensed Pryda Fabricator we provide builders with their complete roof and wall framing requirements as part of a fully engineered system including lintels and beams. Many builders we deal with are moving towards the construction method of timber frames with cladding, as a result of increased pressure for faster and more affordable building methods. Using James Hardie, Weathertex cladding or timber cladding for example, provides flexible design options with a host of other benefits. In James Hardie’s The Smarter Construction Book they conduct a study on ‘What’s the Cost of Your Wall?’ The research reveals that fully clad lightweight homes are generally just as cost competitive as the brick veneer ones. They are particularly competitive when compared to brick veneer with applied finishes or double-storey houses. In fact, using texture-coated and painted HardiTex base sheet is 80% of the cost of face brick veneer for a single storey home, and even less if the brick is rendered.

Easy to install, means site cost reduction.

(Video) Statics: Lesson 47 - Intro to Trusses, Frames, and Machines

Frame and Truss | Bretts (5)

Floor Truss Systems.

Pryda Floor Truss Systems are a complete structural system for timber floors.

Our Floor Truss systems have been proven over many years to provide occupiers with floors which have excellent reliable performance. The timber for these provides a stable platform during installation and minimizes the overall depth required. All trusses use commonly available timber, our floor trusses are mostly manufactured using 70 mm or 90 mm dry structural pine. There are two different types of web systems for these trusses. Both have timber chords but the Longreach Systems use all-timber webs, while Span Systems use metal webs for the diagonals and timber webs for the verticals.

Longreach Trusses, are a premium performance product using nail-plated, all-timber trusses of any depth, but typically 300 mm deep for residential floors and 400 mm deep for commercial floors. Longreach trusses are referenced as FT200, FT250, FT300, FT350 and FT400, where “FT’ means Floor Truss, and “200” is the nominal overall depth (mm). The actual depth dimensions are in nominal size steps, or may be individually specified as required for the particular project.

They can be designed for all common floor loads, including commercial loadings up to 5 kPa or point loads up to 6.7 kN. These trusses are slightly heavier than Pryda Span trusses and being all-timber generally have a stiffer performance as they can dissipate floor vibrations very well, while the nail-plates connecting the webs and chords are quite substantial.

Our Floor Truss Systems offer many benefits to the designer, the builder and the building owner in providing a reliable high performance system for both domestic and commercial construction. The use of the our Floor Truss System results in a very cost effective, high quality product that is sufficiently flexible to accommodate the most complex of building requirements.

These fully engineered open-web timber floor truss systems with timber webs (Pryda Longreach) or metal webs (Pryda Span) have many advantages that result in a lower net installed cost compared to other systems that are available. In some instances there may be a material cost increase by using Pryda floor trusses over alternative flooring systems. However, when it comes to installing the product Pryda floor trusses can provide significant labour savings. In addition, floor trusses have some considerable design advantages that could result in reducing the need for a large amount of costly structural support construction, e.g. Long spans may reduce the need for internal load bearing walls.

Our Floor Trusses are cost effective: No cutting, drilling or notching, set-downs and recesses included where needed, greater design flexibility, equals site cost saving.

Frame and Truss | Bretts (6)

Floor Cassettes.

Bretts lead the way with the Pryda floor cassette system.

A panelised solution to speed up construction and deliver added value. Our system combines the speed and accuracy of engineered timber floor cassettes to achieve larger spans with excellent dynamic performance coupled with Surefoot concrete free footing system to further speed up the time to construct a timber sub floor.

  • Precision designed and engineered to stringent performance criteria to reduce bounce.
  • Manufactured with Pryda Span or Long Reach floor trusses up to 10m in length.
  • Manufactured off site for higher degree of quality assurance and reduced waste on site.
  • Suits both ground floor and upper storey applications.
  • Install complete upper storey cassettes from below to reduce OH&S risks.
  • Compatible with Surefoot concrete free foundations for ground floor applications.

A fast cost effective way to construct a complete working platform in a matter of hours.

Cassette brochure

Case Study: Use of floor cassettes in townhouse development.

In December 2014, New Breeze Homes installed floor cassettes onto the first floor of a 2 unit townhouse development in Carnarvon Court, Queensland. The total first floor area covered 137.6m2 and was complete and ready for wall frames in just 3.5 hours.

(Video) Understanding and Analysing Trusses

The floor cassettes used combined all the elements of the floor system including longreach floor trusses, strong backs and floor sheeting, into large but manageable panels.

These Cassettes were manufactured with the fully engineered design created using the latest release of Pryda’s structural engineering software - Pryda Build Version 4.

07 3623 0122

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What are frames and trusses? ›

Summary. In summary, a member is categorized as a truss and frame by the way it is connected at its ends which determines its ability to carry certain types of loads. Truss members are free to rotate and can only carry axial loads, whereas frame members are rigidly connected and can support all load types.

Are truss and frame same? ›

A truss is a structure composed of rod members arranged to form one or more triangles. The joints are pinned (do not transmit moments) so that the members must be triangulated. A frame, on the other hand, is a structure that consists of arbitrarily oriented beam members which are connected rigidly or by pins at joints.

What is truss Quora? ›

Tie is a structural component of a truss which resists longitudinal tension. Truss is a structure consisting of “two forces” members subjected to compression or tension only, which are connected together at nodes forming a rigid shape e.g. a triangle. So a truss is formed by a combination of Struts and Ties. 9917.

What is truss used for? ›

Trusses are generally used as roofs structures of large span buildings and also in bridges, towers, cranes and walkways. They have higher load capacity and more efficiently used cross-sections.

What are the different types of frames? ›

A Helpful Guide to the Many Types of Picture Frames
  • Gallery Frame.
  • Modern Frame.
  • Floating Frame.
  • Deep-Set Frames.
  • Canvas Prints.
  • Tabletop Frames.
  • Photo Holders.

What is perfect frame? ›

Perfect Frame. A perfect frame is that, which is made up of members just suf- ficient to keep it in equilibrium, when loaded, without any change in its shape. The simplest perfect frame is a triangle, which contains three. members and three joints as shown in Fig.

What is a frame? ›

Definition of frame

(Entry 1 of 3) 1a : the physical makeup of an animal and especially a human body : physique, figure. b : something composed of parts fitted together and united. 2a : the underlying constructional system or structure that gives shape or strength (as to a building) b : a frame dwelling.

How do you solve a truss step by step? ›

Solving a Truss Using the Method of Sections - Step by Step Example

How do you calculate trusses? ›

How do I calculate roof trusses? The simplest form of this equation is to take the length of your roof and divide it by 2. For example, if your roof is 40-feet long, it will need a total of 20 trusses.

What are types of trusses? ›

What are the Types of Truss Structures?
  • Pratt Truss.
  • Warren Truss.
  • K Truss.
  • Howe Truss.
  • Fink Truss.
  • Gambrel Truss.
Jul 13, 2022

What is truss in strength of material? ›

In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points.

Why do engineers use trusses? ›

It consists of a frame of axially loaded members that are either in tension or compression and are interconnected at the joints. Trusses are structurally engineered to be efficient structural systems where every component is critical to the long-term durability and strength of the truss.

How do you read a truss calculator? ›

Just remember the acronym: FIS. This stands for Feet, Inches, Sixteenths. So, for example, a dimension string that reads; 4-7-12 would be the dimension 4'-7 12/16” or 4'-7 3/4”.

How is truss depth calculated? ›

Steel Truss Design every Structural Engineer should know - YouTube

How far can 2x4 trusses span? ›

The greater the potential for a heavy snow load, the stronger your truss will need to be. For instance, if you live up north with a snow load of 55 pounds per square foot, then a 4/12 common truss using all 2×4 lumber can span up to 41'. That same truss can span 46' when built for areas with a snow load of 40 psf.

What is a simple truss? ›


A simple truss is a planar truss which begins A simple truss is a planar truss which begins with a triangular element and can be expanded by adding two members and a joint. For these trusses, the number of members (M) and the number of joints (J) are related by the equation M = 2 J – 3.

What is a common truss? ›

Common (or standard) trusses are symmetrical. A truss with the same pitch and heel on both sides and a peak at the center is called a common truss. Girder trusses are designed to carry additional loads other than standard roof loads.

What makes a good truss? ›

A well-designed truss has a high strength-to-weight ratio. The braces of a truss form a frame which can effectively transfer load forces throughout the structure.

What are trusses made of? ›

Trusses are made from multiple straight members (generally made from wood or metal) arranged in triangles. This design allows a truss to span a very long distance without intermediate support; they are preferable to large, heavy girders because of their low cost and easy implementation.

How many types of trusses are there? ›

A roof truss is a prefabricated structure designed to support a roof on a building. They come in two main types: flat and pitched.

Why is truss system important? ›

Trusses do an important job. Trusses are a building invention that helps distribute the weight of the roof more evenly to the outer walls. Trusses are necessary for a roof to be properly supported. A truss is triangularly shaped, or comprised of a number of triangles.

What is the importance of trusses in roof framing? ›

Benefit of Roof Trusses

A roof truss is considered the most important key component in engineering system in a building. They serve a critical function and design depends on various factors. Without roof, buildings would be exposed to all kinds of elements, rendering them completely useless.

What is a frame? ›

Definition of frame

(Entry 1 of 3) 1a : the physical makeup of an animal and especially a human body : physique, figure. b : something composed of parts fitted together and united. 2a : the underlying constructional system or structure that gives shape or strength (as to a building) b : a frame dwelling.

What is a frame in structures? ›

A framed structure in any material is one that is made stable by a skeleton that is able to stand by itself as a rigid structure without depending on floors or walls to resist deformation.

What is a frame in engineering? ›

A frame or a machine is an engineering structure that that contains at least one member that is not a two-force member. Figure 5.6. 1: This horizontal beam is connected to other members (where normal forces would exist) at more than two locations. This beam is therefore not a two-force member.

What is frame in civil engineering? ›

In the construction industry, the term 'frame' typically refers to a rigid structure that supports a building or other built asset such as a bridge or tunnel, or parts of them.

What is the example of frame? ›

An example of a frame is the bone structure of the human skeleton. An example of a frame is a house made of wood and stone. A frame is defined as the outside border that holds something in place on all sides. An example of frame is the enclosed wood structure that holds a picture hanging on a wall.

What is frame and its types? ›

A Frame structure is a structure having the combination of beam, column and slab to resist the lateral and gravity loads. These structures are usually used to overcome the large moments developing due to the applied loading.

What is the function of frame? ›

The main functions of a frame in a motor vehicle are: To support the vehicle's mechanical components and body. To deal with static and dynamic loads, without undue deflection or distortion.

What are the 3 types of structures? ›

There are three basic types of structures: shell structures, frame structures and solid structures.

What are frame systems? ›

 Rigid frame systems, also called moment frame systems, are used in steel and reinforced concrete buildings. This system consists of beams and columns .  Reinforced concrete and steel in rigid frames are used In earlier high-rise buildings, while concrete were under development, steel frames were predominated.

What are the three types of frame construction? ›

What Are The Types of Frame Structures
  • Rigid frame structure. Which can be further differentiated as: Fixed ended. Pin ended.
  • Braced frame structure: Classification: Portal frames. Gabled frames.
Jul 20, 2016

How many parts are in a frame? ›

Glasses frames comprise of three main parts, containing multiple sub-parts within their construction. Primarily, there is the frame-front and two protrusions known as temples. These main components come in many different forms and materials which have their own specific functions, styles and names. What is this?

What is frame construction type? ›

1. Frame (Class 1): Buildings where the exterior walls are wood or other combustible materials, including construction where combustible materials are combined with other materials (such as brick veneer, stone veneer, wood iron-clad, stucco on wood).

How do you solve a frame? ›

How to solve frame and machine problems (statics) - YouTube

How do you create a frame structure? ›

Design of frame Structure Using STAAD Pro - YouTube

What is the best example of a frame structure? ›

Frame structures

A frame structure consists of different parts. These parts are combined in such a way to make the structure strong. A ladder and a bicycle are good examples of man-made frame structures. Spiderwebs are natural frame structures.

What is frame construction material? ›

Framing materials are usually wood, engineered wood, or structural steel. The alternative to framed construction is generally called mass wall construction, where horizontal layers of stacked materials such as log building, masonry, rammed earth, adobe, etc.


1. A career in Frame and Truss Manufacturing (JTJS4Revised 2015)
(Just the Job)
2. Frame and Truss Assembly
3. Building A Custom Home | #8 - Framing the Roof (Manufactured Trusses)
4. Installing 34' Roof Trusses; Rough Framing POV (Height Warning)
5. Guru Talk: Truss Spacing
6. Difference between Frame Structure and Truss Structure
(Civil Engineering)

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