Interior Platform Steel Tube Framing?


I'm building a platform 22.5-23.5" high in a space 88" by 62-64", supports on three side but one free span side for a bed to slide out - the long side, of course. Because of height/width restrictions, space is at a premium, and wood just takes up too much room. I'm looking to save inches and weight wherever possible, but still end up with a platform that is structurally sound with minimal deflection (i.e. 50+psf live load, less than 1/3" deflection across long span).

Various online calculators go back and forth on whether I can use 2x2 steel or need 2x3 steel at 1/4" thick, or whether aluminum at 2x3, 1/4" would suffice. Will 2x2 steel work or 2x3 aluminum? Or stick with steel 2x3, with the long side vertical?

For either steel or aluminum: do I just use another length of same dimensions at sides for beam, and what kind of posts? For welding, as long as it is in the same plane, I don't 'pay' (in height or width, the most restrictive measurements) for extra...

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Generally with steel vessels the interior joinery frames etc are from L section steel rather than RHS. RHS would need to be sealed both ends.

For the Head dont plate in steel as you describe it will rot out eventually.
You can use alloy or stainless steel and bolt it to the sub framing. Provided its painted and out of the bilge there will be little trouble with galvanic corrosion at the joint, always think which metal is likely lower on the galv scale and make its lug the beefier one.... corrosion allowance . On steel vessels you should leave good ventilation and inspection access around potential wet areas and potential corrosion spots. These days the epoxy paints are so good that internal dissimilar metal joints seldom show any problem providing thay are not in water. External is a different...

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Presentation on theme: "Chapter 25 Framing Methods. 2 Links for Chapter 25 Balloon Framing Platform Framing Post-and-Beam Framing Related Web Sites Steel Construction Concrete."— Presentation transcript:

1 Chapter 25 Framing Methods

2 2 Links for Chapter 25 Balloon Framing Platform Framing Post-and-Beam Framing Related Web Sites Steel Construction Concrete and Masonry Modular Framing

3 3 Balloon Framing Not commonly used today, but is useful for remodeling older houses Exterior studs run from the foundation to the highest level Two-stories is the maximum height Very vulnerable to fire damage

4 4 Balloon Framing

5 5 Platform Framing Most common framing method Each floor is created as its own...

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This tutorial shows how the interior wall framing is performed using Revit and the LindabRevitTools software. The tutorial is divided into 7 different steps starting with the project setup and ending with the creation of wall sheets for production.

LindabRevitTools is an extension for light gauge steel framing running on the Autodesk Revit platform.

The extension contains and complete toolset for light gauge steel framing in Revit. When using the software, it is possible to create:

- Wall tags
- Wall section schedules
- Exterior and interior wall elements
- Material lists for light gauge steel profiles
- Material lists for wall layer materials
- Wall sheets

The software is currently based on products mainly for the Scandinavian market -- however, this does not exclude the use for other markets.

It is free of charge and can be downloaded by all members of Lindab's Information Gateway

For more information:...

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Q: I’m interested in designing and building a two-story house using Structural Insulated Panels (SIPs). Which way should the panels be oriented, and what are my options for attaching the second floor to the walls?

A: Bill Chaleff, an architect from Water Mill, N.Y., and a presenter at JLC Live, responds: If you are considering this type of construction, first I recommend that you build the exterior walls with “jumbo” 8-foot-wide panels, standing on end and running the full height of both stories, in balloon-frame fashion. I’ve been using this strategy successfully for more than 25 years.


Balloon framing makes the best use of the panels’ most fundamental advantage: resistance to wind and air infiltration. With amazingly few joints and cracks, houses made with SIPs routinely deliver blower-door test results less than 2 ACH at 50 pascals, and there are many documented results of less than 1 ACH at 50 pascals.

Also, should your...

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Light gauge steel construction is very similar to wood framed construction in principle - the wooden framing members are replaced with thin steel sections. The steel sections used here are called cold formed sections, meaning that the sections are formed, or given shape at room temperature. This is in contrast to thicker hot rolled sections, that are shaped while the steel is molten hot. Cold formed steel is shaped by guiding thin sheets of steel through a series of rollers, each roller changing the shape very slightly, with the net result of converting a flat sheet of steel into a C or S-shaped section.

The steel used here is coated with zinc (called galvanized) or a mixture of zinc and aluminum (called zincalume or galvalume by some) to protect it from corrosion. The thickness of this coating can be varied to suit a range of environments. Typically, marine environments require the most protection, and dry, arid regions the least.

The thicknesses of steel used here range...

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back to shelves and platforms

A sturdy wall mount support for the turntable

Design and fabrication by: The Analog Dept.

To be regarded not as a potential product, but rather an experiment in turntable support systems. Let's be kind and call it a learning process.

Below 3d imagery: Pre-visualizing the wall mounted rack for my Teres. I had decided that I needed to wall mount my Teres in my upstairs flat. Problem is, nobody sells a TT wall rack robust enough. I might as well build one, I thought.


Material is to be mild steel in 2 shapes. 1 inch square (.07 wall) seamless tubing, and 1/8 inch thick plate (2 different widths). The various pieces are to be welded together using a Victor oxy-acetylene set. The completed rack is to be bolted to the load bearing stud structure behind the sheetrock wall with six 5/16 x 3 inch lag bolts. (lag bolt = A kind of hex head bolt designed to screw securely into wood) The main goal is to maximize...

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Usage: Our products are used widely in bridge, tunnel, petrifaction, shipbuilding,railway, airport, dock industry and civil building etc.
Frame scaffolding is light duty, easy to erect and walk through, wide applications for both inside and outside constructions.

Steel A frame scaffolding
1.Light duty steel tube frame
Q195 steel tube ladder frame scaffolding is light weight and simple scaffolding which can support some normal concrete construction.
2.Steel h frame scaffolding
The Steel h frame scaffolding let people can get through the falsework easily.
3.Ladder Frame scaffolding system for exterior&interior building
Steel tube frame scaffolding can support indoor ceiling forms or outdoor decoration platform.

Common Specification in feet and inch
Door Frame Scaffolding: 6'4'H*3'W / 6'4'H*5'W
Ladder Frame Scaffolding: 3'1'H*5'W / 5'1'H*5'W / 6'7'H*5'W / 4'H*4'W / 5'H*4'W / 6'H*4'W


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A construction technique that uses steel supports to form the skeleton of a building, steel framing provides structural support for the building and its components. The steel frame comprises vertical pieces, or columns, as well as horizontal girders. Both of these pieces are most often made from I-beams but can also be formed by steel tubes, pipes or channels, which are joined together using bolts, rivets, or specialised welding techniques.

The strength to weight ratio of steel gives this method a huge benefit over other construction techniques. Furthermore, it is a non-corrosive metal, which ensures the durability, and longevity of the structure. Steel Framing is being used more and more in residential and commercial construction for a number of reasons:

Combining Form & Function: Steel framing is an attractive option for allowing architects to explore their creative side in modern construction projects. It’s slender frame is ideal for creating a sense of open space...
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For Blue Water

Introduction | Which Metal...? | Aesthetics & Hull Form | Design Features
Scantling Calcs & Framing | Advantages of NC Cutting | Corrosion Protection | Conclusion


This essay is intended to bring to light a few of the issues surrounding the use of metal for boats. You can access any of the specific topics via the links above.

While the pros and cons of various metals expressed here are quite relevant to one's choice of hull material, they are also central to the actual process of designing and building in metal, whether one chooses in favor of steel, aluminum, copper nickel, monel, stainless, or what have you...

The following is therefore not solely aimed at potential metal boat owners, but also at boat builders and designers who may wish to make better use of metal as a structural material for boats.

Which Metal...?

One of the primary choices one...

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AASHTO (American Association of State Highway and Transportation Officials) A regulatory organization which governs the design and specifications of highway bridges. Accessories Are extra items that can be furnished in addition to the base joist or joist girder. They include: headers, top chord extensions, extended ends, ceiling extensions, bottom chord extensions, sloped end bearings, bridging, bridging anchors, joist girder bottom chord bracing, or angle units (joist substitutes). ADL Abbrevation for 'After Dead Load is Applied'. Aesthetic Having the sense of beauty or pleasing to the eye. AFF Abbrevation for 'Above Finish Floor'. AGA (American Galvanizers Association) A non-profit association representing the post-fabrication hot-dip galvanizing industry. AGCA (Associated General Contractors of America) Is a national trade organization of qualified...
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