How far can a 6 inch, 4″, 8″, 10″ & 12 inch steel i beam span depends on several factors like, building code, depth of beam, span, height of structure and construction requirements.

There is different shape and size of hot rolled Steel section such as H beam (universal column), I beam (universal beam), angles, channels and etc are used in construction project such as field of agriculture construction, industrial construction, multi storey building, different factories and residential projects.

Today is the demand of steel structure in the field of construction projects that replace the depending on reinforced cement concrete, their higher strength, less time consuming, make it ideal for residential project in short duration.

Steel beam is also known as Universal beam or UB’s or I beam or H beam, W beam, rolled steel joist (rsj), double T due to their shape. Steel beam are very versatile and can be used in various structural Steel construction project.

I- beam is consist of two horizontal plates known as flanges connected by vertical component known as web. Generally depth of Universal beam or steel beam is greater than their width which makes them suitable for beam application where strength needs to be in one of direction. Which is the most often used section for structural Steel purpose.

A rolled steel joist (RSJ) is a common type of beam used for structural steelwork. It is also known as an ‘I-beam’. Rolled steel joist (srj) are usually made from mild steel but can also be formed from aluminium or other materials.

Steel i beam or universal beam are extremely effective for use as structural Steel. they provide the maximum amount of strength for the volume of Steel used in making them the most efficient method of carrying bending and shear loads. In this article you know about how far can a 6 inch, 4 inch, 8 inch, 10 inch and 12 inch steel i beam span according to Thumb Rule and experience basis.

Generally ISMB100 or W4 or UB100×75, ISMB150 or W6 or UB150×75, ISMB200 or W8 or UB200×100, ISMB250 or W10 or UB250×125, ISMB300 or W12 or UB300×140, ISMB350 or W14 or UB3 50×140, ISMB400 or W16 or UB400×140, ISMB450 or W18 or UB450×150, ISMB500 or W20 UB500×180, ISMB550 or UB550×190 and ISMB600 or UB600×210 steel beam are used in construction industries.

Generally Steel beam size represented by dimensions of web × flange × weight per unit length, measured in mm or inch such as size of steel beam ismb150 represented as 150 × 75 or 6″×3″, where 150mm is depth of steel beam, 75mm is their flange width.

Variation among the universal beam include material, length of the web and depth of flanges. Different weight loads and area will require different measurement on the beam, the longer the web, the more force it can stand up and down, the wider of flange, the more side to side movement the Beam can withstand. Wide flange beam are also known as W- beam.

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**How far can a 6 inch, 4″, 8″, 10″ & 12 inch steel i beam span**

Structure steel is a versatile building material, though it can be used in great variety of ways. The most economic span range for conventional steel floor and roof framing is from 10 to 32 feet.

As per general experience and thumb rule, to calculate the required and necessary depth of i beam, divide the span length in inches by 20 such as span length in inches/ depth = 20 for primary beam and for secondary beam span length to depth ratio is about 15 to 18. The width of this beam would be 1/3 and 1/2 of the depth. The dimensions of a Girder would be same, but the flange would be thicker. A beam overhang can be maximum of 3/8 of the supported span.

In general, the maximum span for a 4-inch i beam is typically almost 7 feet, while the maximum span for a 6-inch i beam is typically almost 10 feet. Moreover, the maximum span for an 8-inch i beam is typically almost 14 feet, while the maximum span for a 10-inch i beam is typically almost 17 feet. In addition, the maximum span for a 12-inch i beam is typically almost 20 feet.

**How far can a 4 inch i beam span**

Typically a 4 inch i steel beam (or W4 or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist RSJ) can allow to span maximum of 7 feet.

**How far can a 6 inch i beam span**

Normally a 6 inch i steel beam (or W6 or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist, RSJ) can allow to span maximum of 10 feet used for residential building projects or construction.

**How far can a 8 inch i beam span**

Typically an 8 inch i steel beam (or W8 or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist, RSJ) can allow to span maximum of 14 feet far distance used for residential building projects or construction.

**How far can a 10 inch i beam span**

Usually a 10 inch i steel beam (or W10 or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist RSJ) can allow to span maximum of 17 feet far distance used for residential building projects or construction.

**How far can a 12 inch i beam span**

Typically a 12 inch i steel beam (or W12 or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist, RSJ) can allow to span maximum of 20 feet far distance used for residential building projects or construction.

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**Conclusions**:-

Typically a 6 inch i steel beam or W6 or universal beam or w beam or I beam or UB’s or hot rolled section or Rolled steel joist (RSJ) can allow to span maximum of 10 feet.